Drawer microwave oven

Abstract

The present invention relates to a drawer-type microwave oven, comprising a housing, a door, a first slide rail, a second slide rail, a drive motor, a magnetron and a first fan. The housing comprises an outer shell and a cooking cavity arranged in the outer shell. The magnetron and the first fan are arranged in the third spacing area, and the outer shell is provided with an air inlet mesh connected to the third spacing area. When the first fan is working, the cold air entering from the air inlet mesh is guided to flow through the magnetron and the drive motor in sequence. When the above-mentioned drawer-type microwave oven is working, the first fan draws the cold air into the third spacing area through the air inlet mesh, and the cold air flows through the magnetron and the drive motor in sequence, which can dissipate heat well for the drive motor, thereby reducing the temperature of the drive motor, ensuring the long-term normal operation of the drive motor, and extending the service life.

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 connected by a slide rail. The hinged door is a rotating door, and the slide rail is a drawer-type door. The whole machine is usually also called a drawer-type microwave oven. Among them, the drawer-type microwave oven uses a drive motor to drive the slide rail to move back and forth, thereby automatically opening or closing the door. Generally, in order to increase the heating speed or add food cooking functions such as grilling, electric heating tubes are added to the cabinet of the drawer-type microwave oven. Since the temperature generated by the electric heating tube is very high, when the electric heating tube is used for heating, the temperature in the cooking cavity will reach more than 200 degrees, while the heat-resistant temperature of conventional drive motors is generally below 80 degrees. In addition, due to the space limitations of the cabinet, the drive motor is generally set near the metal cooking cavity. The high temperature in the cooking cavity will be transmitted to the drive motor, thereby affecting the performance and life of the drive motor. 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 that can dissipate heat well for the drive motor.

[0004] The technical solution 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 rear cover plate, a first side cover plate and a second side cover plate arranged oppositely, the first side cover plate and the second side cover plate are both connected to the rear cover plate, a first spacing area is formed between the first side cover plate and the cavity wall of the cooking cavity, a second spacing area is formed between the second side cover plate and the cavity wall of the cooking cavity, a third spacing area is formed between the rear cover plate and the cavity wall of the cooking cavity, and the third spacing area is connected to the second spacing area; a first A slide rail, a second slide rail and a drive motor, the first slide rail and the second slide rail are respectively arranged in the first interval area and the second interval area, the drive motor is arranged in the second interval area, the first slide rail and the second slide rail both include a fixed rail fixed on the box body and a movable rail slidably arranged on the fixed rail, the drive motor is used to drive the movable rail of the second slide rail to move, and the movable rail is connected to the door body; a magnetron and a first fan, the magnetron and the first fan are arranged in the third interval area, the outer shell is provided with an air inlet mesh connected to the third interval area, and when the first fan is working, the cold air entering from the air inlet mesh is guided to flow through the magnetron and the drive motor in sequence.

[0005] When the above-mentioned drawer-type microwave oven is working, the first fan draws cold air into the third compartment area through the air inlet mesh, and the cold air flows through the magnetron and the drive motor in turn, which can dissipate the heat of the drive motor well, thereby reducing the temperature of the drive motor, ensuring the long-term normal operation of the drive motor and extending its service life.

[0006] In one embodiment, the outer shell also includes a bottom cover plate connected to the rear cover plate, the first side cover plate, and the second side cover plate respectively; a fourth spacing area connected to the second spacing area is formed between the bottom cover plate and the cavity wall of the cooking cavity, and a bottom partition is provided in the fourth spacing area, and the bottom space of the first spacing area is isolated from the bottom space of the second spacing area by the bottom partition; the drive motor is arranged at the intersection of the second spacing area and the fourth spacing area.

[0007] In one embodiment, the drawer-type microwave oven also includes a hot air component and a front panel; the outer shell also includes a top cover plate respectively connected to the rear cover plate, the first side cover plate, and the second side cover plate; a fifth spacing area is formed between the top cover plate and the cavity wall of the cooking cavity, and the fifth spacing area is respectively connected to the first spacing area and the second spacing area; the hot air component is arranged in the fifth spacing area; the front plate is arranged around the circumference of the mouth of the cooking cavity, and the bottom of the front plate is provided with a front air outlet hole that penetrates the front plate, the front air outlet hole is connected to the first spacing area, and the front plate blocks the second spacing area; when the door is closed, the door body and the front plate fit together to seal the mouth.

[0008] In one embodiment, the drawer-type microwave oven also includes a first air guide cover, an air inlet mesh is provided on the rear wall of the cooking cavity, the radiator housing of the magnetron is provided with a first transverse ventilation channel, the first air guide cover is covered by the air inlet mesh, the air outlet of the first fan, the first transverse ventilation channel, and the air inlet of the first air guide cover are connected in sequence, and the air outlet of the first air guide cover is connected to the second spacing area.

[0009] In one embodiment, the drawer-type microwave oven further includes a variable frequency power supply and a second fan, the variable frequency power supply and the second fan are arranged in the third spacing area, and the second fan is used to dissipate heat for the variable frequency power supply.

[0010] In one of the embodiments, the air inlet mesh includes side air inlet mesh, bottom air inlet mesh and rear 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 rear cover plate is provided with the rear air inlet mesh close to the first side cover plate and one of the corners of the bottom cover plate; the surface where the air inlet of the second fan is located is inclined relative to the bottom cover plate, the surface where the air inlet of the second fan is located faces the side air inlet mesh and the bottom air inlet mesh, the surface where the air outlet of the second fan is located faces the variable frequency power supply, the surface where the air inlet of the first fan is located faces the bottom air inlet mesh, and the surface where the air outlet of the first fan is located faces the magnetron.

[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 embodiment, the drawer-type microwave oven also includes a side insulation plate arranged in the second spacing area and a bottom insulation plate arranged in the fourth spacing area; the side insulation plate is located between the side wall of the cooking cavity and the second slide rail, and the bottom of the side insulation plate is connected to the bottom insulation plate.

[0014] In one of the embodiments, the front end of the fixed rail of the second slide rail is connected to the front plate, and the rear end of the fixed rail of the second slide rail is fixedly connected to the side plate of the cooking cavity.

[0015] In one of the embodiments, an upper edge plate is extended from the top wall of the cooking cavity toward the second side cover plate, an upper bending edge connected to the upper edge plate is provided at the top of the side insulation plate, and a lower bending edge connected to the bottom insulation plate is provided at the bottom of the side insulation plate; and a top pressing edge is provided on the side of the side insulation plate to abut against the side wall of the cooking cavity.

[0016] In one embodiment, the drawer-type microwave oven also includes a mounting bracket, a connecting portion is connected to the bottom side of the fixed rail of the second slide rail, the driving motor is installed on the mounting bracket, and the mounting bracket is respectively connected to the lower bending edge and the connecting portion.

[0017] In one embodiment, the connecting portion includes a first connecting plate and a second connecting plate, the first connecting plate is connected to the fixed rail of the second slide rail, and the second connecting plate is connected to the first connecting plate; the first connecting plate is against the side insulation plate or is arranged adjacent to the side insulation plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a drawer-type microwave oven according to an embodiment of the present invention after the door is opened from one viewing angle;

[0019] Figure 2 It is a structural diagram from another perspective after the door of the drawer-type microwave oven according to one embodiment of the present invention is opened;

[0020] Figure 3 It is a structural schematic diagram of the drawer-type microwave oven according to one embodiment of the present invention after the second side cover plate and the top cover plate are removed;

[0021] Figure 4 It is a structural schematic diagram from one viewing angle of the drawer-type microwave oven according to one embodiment of the present invention after the rear cover plate, the second side cover plate, the top cover plate and the bottom cover plate are removed;

[0022] Figure 5 for Figure 4 A magnified schematic diagram at M;

[0023] Figure 6 It is a structural schematic diagram of a drawer-type microwave oven according to an embodiment of the present invention with the rear cover plate removed;

[0024] Figure 7 It is a structural schematic diagram from another perspective after the rear cover plate, the second side cover plate, the top cover plate and the bottom cover plate of the drawer-type microwave oven according to one embodiment of the present invention are removed;

[0025] Figure 8 This is an exploded schematic diagram of a drawer-type microwave oven according to an embodiment of the present invention;

[0026] Fig. 9 for Figure 8 Enlarged schematic diagram at N;

[0027] Fig.10 It is a structural schematic diagram of a second slide rail and a driving motor of a drawer-type microwave oven according to an embodiment of the present invention;

[0028] Fig.11The figure is a schematic diagram of the internal structure of a drawer-type microwave oven according to an embodiment of the present invention.

[0029] Reference numerals:

[0030] 10. Box body; 11. Shell; 111. Back cover; 1111. Back air inlet mesh; 112. First side cover; 1121. Side air inlet mesh; 113. Second side cover; 114. Bottom cover; 1141. Bottom air inlet mesh; 1142. Support feet; 115. Top cover; 12. Cooking cavity; 121. Air inlet mesh; 122. Lower edge plate; 1221. First vent; 123. Side edge plate; 124. Upper edge plate; 13. Bottom partition; 14. Control box; 20. Door body; 31. First slide rail; 32. Second slide rail; 321. Fixed rail; 322. Movable rail; 33. Driving motor; 34. Connecting part; 341. First connecting plate; 342. Second connecting plate; 41. Magnetron; 411. Radiator shell; 412. Power connection Head; 42, first fan; 421, fan motor; 43, variable frequency power supply; 431, housing; 44, second fan; 45, ventilation gap; 46, side insulation board; 461, upper bending edge; 462, lower bending edge; 463, top pressure edge; 47, bottom insulation board; 50, hot air assembly; 51, heating pipe; 52, hot stirring fan; 53, hot air motor; 60, front plate; 61, front air outlet; 70, first air guide cover; 71, heat conduction edge; 80, second air guide cover; 91, vertical partition; 911, third vent; 92, horizontal partition; 921, fourth vent; 93, first partition; 94, front air outlet; 95, horizontal surrounding edge; 951, main body surrounding edge; 952, arc surrounding edge; 96, guide edge; 97, ventilation interval; 98, mounting bracket. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] In the description of the present invention, it should 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.

[0034] In one embodiment, see Figure 1 , Figures 4 to 11 A drawer-type microwave oven comprises a housing 10, a door 20, a first slide rail 31, a second slide rail 32, a drive motor 33, a magnetron 41 and a first fan 42. The housing 10 comprises a housing 11 and a cooking cavity 12 disposed in the housing 11. The housing 11 and the cooking cavity 12 are both provided with an opening corresponding to the door 20. The door 20 can be opened and covered on the opening, and the housing 11 comprises a rear cover plate 111, a first side cover plate 112 and a second side cover plate 113 disposed opposite to each other. The first side cover plate 112 and the second side cover plate 113 are both connected to the rear cover plate 111, and a first spacing area is formed between the first side cover plate 112 and the cavity wall of the cooking cavity 12. A second spacing area is formed between the second side cover plate 113 and the cavity wall of the cooking cavity 12. A third spacing area is formed between the rear cover plate 111 and the cavity wall of the cooking cavity 12, and the third spacing area is connected to the second spacing area.

[0035] The first slide rail 31 and the second slide rail 32 are respectively arranged in the first spacing area and the second spacing area, the driving motor 33 is arranged in the second spacing area, and the first slide rail 31 and the second slide rail 32 both include a fixed rail 321 fixed on the box body 10 and a movable rail 322 slidably arranged on the fixed rail 321. The driving motor 33 is used to drive the movable rail 322 of the second slide rail 32 to move, and the movable rail 322 is connected to the door body 20.

[0036] The magnetron 41 and the first fan 42 are arranged in the third spacing area, and the housing 11 is provided with an air inlet mesh connected to the third spacing area. When the first fan 42 is working, the cold air entering from the air inlet mesh is guided to flow through the magnetron 41 and the drive motor 33 in sequence.

[0037] When the above-mentioned drawer-type microwave oven is working, the first fan 42 draws cold air into the third interval area through the air inlet mesh, and the cold air flows through the magnetron 41 and the drive motor 33 in turn, which can dissipate the heat of the drive motor 33 well, thereby reducing the temperature of the drive motor 33, ensuring the long-term normal operation of the drive motor 33 and extending its service life.

[0038] For further information, see Fig.11The housing 11 further includes a bottom cover plate 114 connected to the rear cover plate 111, the first side cover plate 112, and the second side cover plate 113 respectively. A fourth spacing area connected to the second spacing area is formed between the bottom cover plate 114 and the cavity wall of the cooking cavity 12. A bottom partition plate 13 is provided in the fourth spacing area, and the bottom space of the first spacing area is isolated from the bottom space of the second spacing area by the bottom partition plate 13. The driving motor 33 is arranged at the intersection of the second spacing area and the fourth spacing area. Specifically, the bottom partition plate 13 extends from the rear cover plate 111 to the mouth of the cooking cavity 12. Under the premise that the volume of the box body 10 is fixed, in order to increase the volume of the cooking cavity 12, the space of the second interval area is usually smaller. When the drive motor 33 is set at the intersection of the second interval area and the fourth interval area, there is no need to increase the space size of the second interval area. At the same time, the drive motor 33 can be installed between the outer shell 11 and the cavity wall of the cooking cavity 12. In addition, since the position of the drive motor 33 is reasonably set, the ventilation volume can be increased to a certain extent to ensure the heat dissipation effect.

[0039] For further information, see Figures 1 to 8 , the drawer-type microwave oven further includes a hot air assembly 50 and a front plate 60. The housing 11 further includes a top cover plate 115 connected to the rear cover plate 111, the first side cover plate 112, and the second side cover plate 113, respectively. A fifth spacing area is formed between the top cover plate 115 and the cavity wall of the cooking cavity 12, and the fifth spacing area is connected to the first spacing area and the second spacing area, respectively. The hot air assembly 50 is arranged in the fifth spacing area. The front plate 60 is arranged around the circumference of the mouth of the cooking cavity 12, and the bottom of the front plate 60 is provided with a front side air outlet 61 that passes through the front plate 60, and the front side air outlet 61 is connected to the first spacing area, and the front plate 60 blocks the second spacing area. When the door is closed, the door body 20 fits with the front plate 60 to seal the mouth. Thus, the entire air path is as follows: the cold air is sucked in by the first fan 42 in the third compartment area, blown through the magnetron 41, and then blown to the drive motor 33 in the second compartment area, and then blown upward to the hot air assembly 50, and then flows into the first compartment area, and then flows into the bottom space of the first compartment area, and then blown out of the box body 10 from the front side air outlet 61 of the front plate 60. In this way, the magnetron 41, the drive motor 33, and the hot air motor 53 of the hot air assembly 50 in the box body 10 can be cooled, so that each major electronic component in the box body 10 can achieve a good cooling effect.

[0040] Specifically, see Figure 4 , Figure 6 and Figure 8, the hot air assembly 50 is arranged on the top wall of the cooking cavity 12. The hot air assembly 50 includes a heating pipe 51, a hot stirring fan 52 with metal fan blades, and a hot air motor 53 driving the hot stirring fan 52. When the wind from the third interval area flows to the fourth interval area, the hot air motor 53 can be dissipated to prevent heat from accumulating on the top of the box body 10 and affecting the control box 14 located on the side of the hot air assembly 50. In addition, a control box 14 is provided on the top cover plate 115. The control box 14 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 14. Of course, the control box 14 can also be arranged at other positions on the top cover plate 115.

[0041] For further information, see Figure 6 The drawer-type microwave oven further includes a first air guide cover 70. An air inlet mesh 121 is provided on the rear wall of the cooking cavity 12, a first transverse ventilation channel is provided on the heat sink housing 411 of the magnetron 41, the first air guide cover 70 is covered on the air inlet mesh 121, an air outlet of the first fan 42, the first transverse ventilation channel, and an air inlet of the first air guide cover 70 are connected in sequence, and the air outlet of the first air guide cover 70 is connected to the second spacing area. In this way, the wind blown by the first fan 42 forms two winds. The first wind passes through the radiator shell 411 of the magnetron 41 and then enters the first air guide cover 70. A part of the first air guide cover 70 enters the cooking cavity 12 through the air inlet mesh 121, and the other part is blown into the second interval area from the air outlet of the first air guide cover 70 to dissipate the heat of the drive motor 33; the second wind passes through the side of the magnetron 41 and the side of the first air guide cover 70 and flows into the second interval area to further dissipate the heat of the drive motor 33.

[0042] For further information, see Figures 8 to 11 The rear wall of the cooking cavity 12 is provided with a lower edge plate 122 extending to the bottom cover plate 114 below the cooking cavity 12, and a side edge plate 123 extending to the second side cover plate 113. The lower edge plate 122 is provided with a first vent 1221 at a position corresponding to the second interval area, and the second wind flows into the second interval area from the first vent 1221. The lower edge plate 122 and the side edge plate 123 facilitate the wind in the second interval area to flow upward to the fifth interval area, and avoid the second interval area from flowing back to the third interval area and causing mixed flow.

[0043] For further information, see Figure 6 , Figures 8 to 11 The drawer-type microwave oven further comprises a variable frequency power supply 43 and a second fan 44. The variable frequency power supply 43 and the second fan 44 are arranged in the third interval area, and the second fan 44 is used to dissipate heat from the variable frequency power supply 43.

[0044] For further information, see Figure 2 , Figure 6 , Figures 8 to 11 The air inlet mesh includes side air inlet mesh 1121, bottom air inlet mesh 1141 and rear air inlet mesh 1111. The first side cover plate 112 is provided with the side air inlet mesh 1121 at one of the corners close to the rear cover plate 111 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 112 and the rear cover plate 111; the rear cover plate 111 is provided with the rear air inlet mesh 1111 at one of the corners close to the first side cover plate 112 and the bottom cover plate 114; the surface where the air inlet of the second fan 44 is located is inclined relative to the bottom cover plate 114, the surface where the air inlet of the second fan 44 is located faces the side air inlet mesh 1121 and the bottom air inlet mesh 1141, the surface where the air outlet of the second fan 44 is located faces the variable frequency power supply 43, the surface where the air inlet of the first fan 42 is located faces the bottom air inlet mesh 1141, and the surface where the air outlet of the first fan 42 is located faces the magnetron 41.

[0045] In this way, on the one hand, the first fan 42 draws air from the outside of the box 10 through the bottom air inlet mesh 1141 and the rear air inlet mesh 1111, and blows it toward the magnetron 41 for heat dissipation, thereby achieving a good heat dissipation effect for the magnetron 41; the second fan 44 draws air from the outside of the box 10 through the side air inlet mesh 1121, the bottom air inlet mesh 1141 and the rear air inlet mesh 1111, and blows it toward the variable frequency power supply 43 for heat dissipation for the variable frequency power supply 43; the large amount of air entering has a good heat dissipation effect on the variable frequency power supply 43; on the other hand, since the second fan 44 is inclined relative to the bottom cover plate 114 with the surface where the air inlet is located, the horizontal space occupied by the second fan 44 can be reduced to a certain extent relative to the horizontal setting, thereby increasing the volume of the cooking cavity 12 while reducing the heat dissipation effect.

[0046] For further information, see Figure 2 , Figure 6 , Figures 8 to 11 , the second fan 44 is arranged above the first fan 42, and the angle A between the central axis of the second fan 44 and the central axis of the first fan 42 is less than 90°. It should be explained that the central axis of the first fan 42 refers to the axis line of the surface perpendicular to the air inlet of the first fan 42, and the central axis of the second fan 44 refers to the axis line of the surface perpendicular to the air inlet of the second fan 44. Specifically, the angle A between the central axis of the second fan 44 and the central axis of the first fan 42 is 30° to 40°, and preferably, A is 36°.

[0047] For further information, see Figure 2 , Figure 6 , Figures 8 to 11 The first fan 42 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 second air guide cover 80, and the top plate of the second air guide cover 80 is provided with a second vent connected to the air inlet on the lower surface of the vortex fan. The fan motor 421 of the vortex fan is arranged in the second air guide cover 80, and the second air guide cover 80 is arranged to cover a part of the bottom air inlet mesh 1141. The projection of the second fan 44 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 second air guide cover 80 can divide the air entering into the outer shell 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 42, and the other is sucked in by the air inlet of the second fan 44. The two wind flows will not be confused and partially offset, thereby improving the utilization rate of cold air and ensuring the heat dissipation effect; in addition, the fan motor 421 of the vortex fan is arranged in the second air guide cover 80, and the wind flow entering the second air guide cover 80 has a heat dissipation effect on the fan motor 421, thereby improving the service life of the fan motor 421.

[0048] Specifically, the second air guide cover 80 includes two baffles arranged at intervals and a mounting plate connecting the two baffles. The second vent is formed on the mounting plate. The baffles are respectively connected to the rear wall of the cooking cavity 12 and the rear cover 111. The motor of the first fan 42 is arranged between the two baffles. The area between the two baffles is opposite to the rear air inlet mesh 1111 of the rear cover 111, and the outside air can enter between the two baffles through the rear air inlet mesh 1111. In addition, the mounting plate is opposite to the bottom air inlet mesh 1141 of the bottom cover 114, and the outside air can also enter the second air guide cover 80 through the bottom air inlet mesh 1141.

[0049] For further information, see Figure 2 , Figures 4 to 6 , a ventilation gap 45 is provided between the first fan 42 and the second fan 44. In this way, a part of the wind enters the second air guide cover 80 through the bottom air inlet mesh 1141 and enters the air inlet on the lower surface of the first fan 42, and another part of the wind enters the housing 11 through the bottom air inlet mesh 1141 and the side air inlet mesh 1121, and enters the air inlet on the upper surface of the first fan 42 from the gap between the first fan 42 and the second fan 44, thereby increasing the cold air intake of the first fan 42 and having a better heat dissipation effect.

[0050] For further information, see Figure 2 , Figures 4 to 6The housing 11 of the variable frequency power supply 43 is provided with a second transverse ventilation channel, the air outlet of the second fan 44 is connected to one of the ports of the second transverse ventilation channel, and the outer wall of the other port of the second transverse ventilation channel is connected with a vertical partition 91 and a transverse partition 92. The vertical partition 91 and the transverse partition 92 are arranged on the periphery of the magnetron 41, and the vertical partition 91 is provided with a third ventilation port 911, and the air outlet of the first fan 42 is connected to the third ventilation port 911. In this way, on the one hand, the cold air sent out from the air outlet of the second fan 44 enters the second transverse ventilation channel to achieve better heat dissipation of the variable frequency power supply 43; on the other hand, under the action of the vertical partition 91 and the transverse partition 92, 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.

[0051] Furthermore, the transverse partition 92 is also connected to the rear wall of the cooking cavity 12 and the rear cover 111. Similarly, the vertical partition 91 is also connected to the rear wall of the cooking cavity 12 and the rear cover 111.

[0052] For further information, see Figure 2 , Figures 4 to 6 , the power connection connector 412 of the magnetron 41 is arranged adjacent to the transverse partition 92; the transverse partition 92 is provided with a fourth vent 921 corresponding to the power connection connector of the magnetron 41, and the fourth vent 921 is located on the transverse partition 92 on a side close to the vertical partition 91. In this way, after the cold wind of the second fan 44 flows out through the second transverse ventilation channel, a part of the wind flows into the space area where the magnetron 41 is located through the fourth vent 921, and when it flows into the area where the magnetron 41 is located from top to bottom, it fully exchanges heat with the magnetron 41, which can effectively reduce the temperature of the magnetron 41. In addition, it can avoid the generation of whirlwind in the area where the magnetron 41 is located.

[0053] Furthermore, a heat conducting edge 71 is provided at the air inlet of the first air guide cover 70, and the heat conducting edge 71 is in contact with the magnetron 41. Specifically, the heat conducting edge 71 is in contact with the heat sink housing 411 of the magnetron 41, and the heat on the heat sink housing 411 of the magnetron 41 is transferred to the first air guide cover 70 by the heat conduction principle, thereby improving the heat dissipation effect of the magnetron 41.

[0054] The drawer-type microwave oven further comprises a container connected to the door body 20 for placing cooking objects.

[0055] For further information, see Figure 1 and Figure 2The drawer-type microwave oven further comprises a first partition 93. The first partition 93 is connected to the bottom edge of the front plate 60 or to the side edge of the bottom cover plate 114 close to the opening. The first partition 93 is located below the door body 20 and forms a front air outlet 94 with the bottom end of the door body 20. The bottom side surface of the bottom cover plate 114 is provided with a support foot 1142 protruding downward. The first partition 93 and the support surface on which the support foot 1142 is placed form a front air inlet. In this way, the first partition 93 can prevent the cold air entering from the front air inlet and the hot air discharged from the front air outlet 94 from mixing with each other, and prevent the hot air discharged from the front air outlet 94 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 94, 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 94 can be reflected to the upper front side of the box body 10 through the first partition 93, so that it is not easily sucked into the front air inlet.

[0056] For further information, see Figures 3 to 6 A transverse edge 95 is provided on the top wall of the cooking cavity 12 at a side away from the door body 20. The transverse edge 95 is in contact with the top cover plate 115, and the two ends of the transverse edge 95 are spaced from the first side cover plate 112 and the second side cover plate 113. In this way, the transverse edge 95 isolates the hot air assembly 50 from the variable frequency power supply 43 and the magnetron 41, and prevents the heat generated by the hot air assembly 50 from jumping to the variable frequency power supply 43 and the magnetron 41 behind the transverse edge 95, thereby affecting the normal operation of the variable frequency power supply 43 and the magnetron 41.

[0057] For further information, see Figures 3 to 6 The transverse edge 95 includes a main body edge 951 and an arc edge 952 connected to one end of the main body edge 951, and the arc edge 952 is used to guide the wind to the first interval area. A guide edge 96 is also provided on the top wall of the cooking cavity 12, and a ventilation gap 97 is provided between the guide edge 96 and the other end of the main body edge 951, and the guide edge 96 extends toward the middle part of the cooking cavity 12. In this way, part of the wind exhausted by the second fan 44 flows along the transverse edge 95 and enters the first interval area, and then is exhausted from the front side air outlet 61 of the front plate 60; another part of the wind exhausted by the second fan 44 enters the top of the cooking cavity 12 from the ventilation gap 97, then flows through the hot air assembly 50 and enters the first interval area, and is also exhausted from the front side air outlet 61 of the front plate 60.

[0058] For further information, see Figures 8 to 11The drawer-type microwave oven further includes a side heat insulation board 46 disposed in the second compartment area and a bottom heat insulation board 47 disposed in the fourth compartment area. The side heat insulation board 46 is located between the side wall of the cooking cavity 12 and the second slide rail 32, and the bottom of the side heat insulation board 46 is connected to the bottom heat insulation board 47. In this way, the side heat insulation board 46 and the bottom heat insulation board 47 can prevent the heat on the cooking cavity 12 from being transferred outward to a certain extent, so that the temperature of the second slide rail 32 and the driving motor 33 will not be too high.

[0059] Furthermore, the front end of the fixed rail 321 of the second slide rail 32 is connected to the front plate 60 , and the rear end of the fixed rail 321 of the second slide rail 32 is fixedly connected to the side plate 123 of the cooking cavity 12 .

[0060] For further information, see Figures 8 to 11 , the top wall of the cooking cavity 12 extends with an upper edge plate 124 in the direction of the second side cover plate 113, the top of the side heat insulation plate 46 is provided with an upper bending edge 461 connected to the upper edge plate 124, and the bottom of the side heat insulation plate 46 is provided with a lower bending edge 462 connected to the bottom heat insulation plate 47. The side of the side heat insulation plate 46 is provided with a top pressing edge 463 that contacts the side wall of the cooking cavity 12. In this way, the side heat insulation plate 46 can be relatively stably installed on the cavity wall of the cooking cavity 12, which is conducive to ensuring the stability of the driving motor 33. In addition, the top pressing edge 463 can realize the formation of a gap between the side heat insulation plate 46 and the cavity wall of the cooking cavity 12, which can prevent the heat on the cavity wall of the cooking cavity 12 from being transferred to the side heat insulation plate 46.

[0061] For further information, see Figures 8 to 11 The drawer-type microwave oven further comprises a mounting bracket 98, and a connecting portion 34 is connected to the bottom side of the fixed rail 321 of the second slide rail 32. The driving motor 33 is mounted on the mounting bracket 98, and the mounting bracket 98 is respectively connected to the lower bent edge 462 and the connecting portion 34. Specifically, the mounting surface of the connecting portion 34 for connecting to the mounting bracket 98 and the mounting surface of the lower bent edge 462 for connecting to the mounting bracket 98 are flush and on the same plane, so that the mounting bracket 98 can be installed more stably.

[0062] For further information, see Figures 8 to 11, the connecting portion 34 includes a first connecting plate 341 and a second connecting plate 342. The first connecting plate 341 is connected to the fixed rail 321 of the second slide rail 32, and the second connecting plate 342 is connected to the first connecting plate 341. The first connecting plate 341 is against the side heat insulation plate 46 or is arranged closely to the side heat insulation plate 46. In this way, on the one hand, the drive motor 33 can be stably installed, and on the other hand, the bending of the first connecting plate 341 can be avoided. In addition, the drive motor 33 is located exactly at the intersection of the second spacing area and the fourth spacing area. Closely arranged means that there is a spacing between the first connecting plate 341 and the side heat insulation plate 46, and the spacing is small enough, for example, 1mm-5mm. The specific size of the spacing can be set according to actual conditions and will not be elaborated.

[0063] In order to prevent the heat on the cavity wall of the cooking cavity 12 from being transferred to the first slide rail 31 and causing the temperature of the first slide rail 31 to be too high, the drawer-type microwave oven also includes a side heat insulation board 46 disposed in the first spacing area. The side heat insulation board 46 in the first spacing area is located between the side wall of the cooking cavity 12 and the first slide rail 31, and the bottom of the side heat insulation board 46 in the first spacing area is connected to the bottom heat insulation board 47. In this way, the side heat insulation board 46 and the bottom heat insulation board 47 can prevent the heat on the cooking cavity 12 from being transferred outward to a certain extent, so that the temperature of the first slide rail 31 will not be too high.

[0064] 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.

[0065] 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 comprising 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 rear cover plate, a first side cover plate and a second side cover plate arranged opposite to each other, the first side cover plate and the second side cover plate are both connected to the rear cover plate, a first spacing area is formed between the first side cover plate and the cavity wall of the cooking cavity, a second spacing area is formed between the second side cover plate and the cavity wall of the cooking cavity, a third spacing area is formed between the rear cover plate and the cavity wall of the cooking cavity, and the third spacing area is connected to the second spacing area; A first slide rail, a second slide rail and a driving motor, wherein the first slide rail and the second slide rail are respectively arranged in the first interval area and the second interval area, the driving motor is arranged in the second interval area, the first slide rail and the second slide rail both include a fixed rail fixed on the box body and a movable rail slidably arranged on the fixed rail, the driving motor is used to drive the movable rail of the second slide rail to move, and the movable rail is connected to the door body; A magnetron and a first fan, wherein the magnetron and the first fan are arranged in the third spacing area, and an air inlet mesh hole connected to the third spacing area is arranged on the housing, and when the first fan is working, the cold air entering from the air inlet mesh hole is guided to flow through the magnetron and the drive motor in sequence; Among them, the outer shell also includes a bottom cover plate respectively connected to the rear cover plate, the first side cover plate, and the second side cover plate; a fourth spacing area connected to the second spacing area is formed between the bottom cover plate and the cavity wall of the cooking cavity, and a bottom partition is provided in the fourth spacing area, and the bottom space of the first spacing area is isolated from the bottom space of the second spacing area by the bottom partition; the drive motor is arranged at the intersection of the second spacing area and the fourth spacing area.

2. The drawer-type microwave oven according to claim 1, characterized in that: It also includes a hot air component and a front plate; the outer shell also includes a top cover plate connected to the rear cover plate, the first side cover plate, and the second side cover plate respectively; a fifth spacing area is formed between the top cover plate and the cavity wall of the cooking cavity, and the fifth spacing area is respectively connected to the first spacing area and the second spacing area; the hot air component is arranged in the fifth spacing area; the front plate is arranged around the circumference of the mouth of the cooking cavity, and the bottom of the front plate is provided with a front side air outlet hole that penetrates the front plate, the front side air outlet hole is connected to the first spacing area, and the front plate blocks the second spacing area; when the door is closed, the door body fits with the front plate to seal the mouth.

3. The drawer-type microwave oven according to claim 2, characterized in that: It also includes a first air guide cover, an air inlet mesh is provided on the rear wall of the cooking cavity, the radiator shell of the magnetron is provided with a first transverse ventilation channel, the first air guide cover is covered by the air inlet mesh, the air outlet of the first fan, the first transverse ventilation channel, and the air inlet of the first air guide cover are connected in sequence, and the air outlet of the first air guide cover is connected to the second spacing area.

4. The drawer-type microwave oven according to claim 3, characterized in that: It also includes a variable frequency power supply and a second fan. The variable frequency power supply and the second fan are arranged in the third interval area, and the second fan is used to dissipate heat for the variable frequency power supply.

5. The drawer-type microwave oven according to claim 4, characterized in that: The air inlet mesh includes side air inlet mesh, bottom air inlet mesh and rear air inlet mesh; the first side cover plate is provided with the side air inlet mesh near 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 near the first side cover plate and one of the corners of the rear cover plate; the rear cover plate is provided with the rear air inlet mesh near the first side cover plate and one of the corners of the bottom cover plate; the surface where the air inlet of the second fan is located is inclined relative to the bottom cover plate, the surface where the air inlet of the second fan is located faces the side air inlet mesh and the bottom air inlet mesh, the surface where the air outlet of the second fan is located faces the variable frequency power supply, the surface where the air inlet of the first fan is located faces the bottom air inlet mesh, and the surface where the air outlet of the first fan is located faces the magnetron.

6. The drawer-type microwave oven according to claim 4, 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.

7. The drawer-type microwave oven according to claim 6, 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.

8. The drawer-type microwave oven according to claim 2, characterized in that: It also includes a side insulation plate arranged in the second spacing area and a bottom insulation plate arranged in the fourth spacing area; the side insulation plate is located between the side wall of the cooking cavity and the second slide rail, and the bottom of the side insulation plate is connected to the bottom insulation plate.

9. The drawer-type microwave oven according to claim 8, characterized in that: The front end of the fixed rail of the second slide rail is connected to the front plate, and the rear end of the fixed rail of the second slide rail is fixedly connected to the side edge plate of the cooking cavity.

10. The drawer-type microwave oven according to claim 8, characterized in that: An upper edge plate is extended from the top wall of the cooking cavity toward the second side cover plate, an upper bending edge connected to the upper edge plate is provided at the top of the side insulation plate, and a lower bending edge connected to the bottom insulation plate is provided at the bottom of the side insulation plate; a top pressing edge is provided on the side of the side insulation plate to abut against the side wall of the cooking cavity.

11. The drawer-type microwave oven according to claim 10, characterized in that: It also includes a mounting bracket, the bottom side of the fixed rail of the second slide rail is connected with a connecting portion, the driving motor is installed on the mounting bracket, and the mounting bracket is respectively connected to the lower bending edge and the connecting portion.

12. The drawer-type microwave oven according to claim 11, characterized in that: The connecting portion includes a first connecting plate and a second connecting plate, the first connecting plate is connected to the fixed rail of the second slide rail, and the second connecting plate is connected to the first connecting plate; the first connecting plate is against the side insulation plate or is arranged close to the side insulation plate.

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