Drawer type microwave oven

Abstract

The utility model discloses a drawer type microwave oven which comprises a shell, a cavity assembly, a microwave oven generating device, a drawer moving device, a drawer door assembly and an air duct assembly, a main air duct is formed by the outer wall of the cavity assembly and the inner wall of the shell, a first air inlet and a first air outlet which are spaced are formed in the lower side of the front end of the cavity assembly, and a second air outlet is formed in the upper end of the cavity assembly; the air duct assembly is arranged between the rear plate and the shell, the air duct assembly comprises a fan, the fan is fixedly connected to the outer wall of the cavity assembly and arranged in the main air duct, one end of the main air duct communicates with the first air inlet through the fan, and the other end of the main air duct communicates with the first air outlet and the second air outlet; and the drawer movement device and the microwave oven generation device are arranged in the main air duct. According to the utility model, the internal air duct structure is optimized, natural air can be effectively utilized for cooling, and the service life of components is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to microwave oven equipment technical field, especially a drawer type microwave oven. BACKGROUND

[0002] In the design of the existing drawer type microwave oven, due to the complexity of the product and the particularity of the structure, the first air inlet and the air outlet have no obvious difference, and no effective distinction is made in the design, so that the temperature of each component cannot be well cooled by natural wind, and the service life of the component is reduced, therefore, it is necessary to optimize the design of the internal air duct structure of the product. SUMMARY

[0003] The utility model discloses a drawer type microwave oven, which optimizes the internal air duct structure and effectively utilizes natural wind for cooling, thereby improving the service life of the component.

[0004] To achieve the above-mentioned purpose, the utility model provides a drawer type microwave oven, which comprises a shell, a cavity assembly, a microwave oven generating device, a drawer moving device, a drawer door assembly and an air duct assembly.

[0005] The outer wall of the cavity assembly and the inner wall of the shell form a total air duct, a first air inlet and a first air outlet are arranged at the lower side of the front end of the cavity assembly, and a second air outlet is arranged at the upper end of the cavity assembly.

[0006] The air duct assembly is arranged between the rear plate and the shell, the air duct assembly comprises a fan, the fan is fixedly connected to the outer wall of the cavity assembly and arranged in the total air duct, one end of the total air duct is communicated with the first air inlet through the fan, and the other end of the total air duct is communicated with the first air outlet and the second air outlet.

[0007] The drawer moving device and the microwave oven generating device are arranged in the total air duct, and the drawer door assembly is arranged at the front end of the shell and connected with the drawer moving device to realize opening and closing.

[0008] Further, the cavity assembly comprises a front plate, a rear plate, a U-shaped frame, a cavity top plate and a waveguide box assembly, the front plate, the rear plate and the cavity top plate are fixedly connected to the front side, the rear side and the upper side of the U-shaped frame to form an oven cavity frame body, the waveguide box assembly is fixedly arranged in the cavity top plate and connected with the inside of the oven cavity frame body, the first air inlet and the first air outlet are arranged on both sides of the lower end of the front plate, and the second air outlet is arranged on the cavity top plate.

[0009] Further, the outer edges of the front plate and the rear plate are fixedly extended against the inner wall of the shell, so that the total air duct formed inside constitutes a closed area, which can protect the internal components and ensure the formation of the air duct.

[0010] Further, a first opening is arranged on one side of the rear plate and communicates with the first air inlet, so that the total air duct communicates with the first air inlet through the first opening.

[0011] Further, a third opening is arranged on the rear plate and communicates with the interior of the oven cavity frame body and the total air duct respectively, so that the total air duct communicates with the second air outlet, forming natural air flowing through the bottom edge of the side wing for heat dissipation.

[0012] Further, the air duct assembly further comprises a first baffle, which is transversely fixed to the middle part of the rear plate to form a first air duct and a second air duct, one end of the first air duct and the second air duct communicates with the first air inlet through the fan, the other end of the first air duct communicates with the first air outlet, and the other end of the second air duct communicates with the second air outlet. The first baffle separates the total air duct into two air ducts, so that the flow direction of the air flow is different in different directions, which can dissipate heat in different directions of the internal components and the oven cavity frame body, and the heat dissipation effect is better.

[0013] Further, the air duct assembly further comprises a second baffle, the rear plate is provided with a second opening on the other side away from the first opening, the second baffle is fixed to the other side of the U-shaped frame away from the first air inlet, and the front end and the rear end of the second baffle are fixedly connected with the front plate and the rear plate respectively, so as to form a closed third air duct between the second opening and the second air outlet. The second baffle forms a third air duct, so that natural air is discharged from the second air outlet, forming a complete double air duct heat dissipation.

[0014] Further, the microwave oven generating device comprises a magnetron, a transformer, a high-voltage capacitor and a high-voltage diode, the magnetron, the high-voltage capacitor and the high-voltage diode are arranged in the first air duct, and the transformer is arranged in the second air duct.

[0015] Further, the drawer movement device is connected with the drawer door assembly through the rear plate, and the drawer movement device is arranged in the second air duct, and a control panel is arranged on the front side of the shell.

[0016] Further, the shell comprises left and right side plates, a rear cover plate and a top plate which are spliced with each other, and the rear cover plate is provided with a second air inlet which communicates with the first air duct and the second air duct.

[0017] Compared with the prior art, the utility model has following advantages: the utility model discloses a total air duct is divided into first air duct and second air duct through first baffle, forms double air duct heat dissipation structure, and the component device is evenly distributed to first air duct and let air duct, can make enough heat dissipation space between component device, simultaneously, first air duct and second air duct are connected first air outlet and second air outlet respectively, make the flow of natural wind different, improve the heat dissipation effect of each direction inside, better improve the service life of internal component device. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will be to the embodiment or prior art description needed to use the drawing briefly introduced, obviously, the following description in the drawing is some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0019] Figure 1 It is a structure schematic diagram of the drawer type microwave oven of the utility model;

[0020] Figure 2 It is Figure 1 The blanking side plate of the utility model;

[0021] Figure 3 It is the structure schematic diagram of the utility model removing the shell;

[0022] Figure 4 It is Figure 3 The schematic diagram of another perspective of the utility model.

[0023] In the drawing includes:

[0024] 1, shell;11, side plate;12, back cover plate;121, second air inlet;13, shell top plate;2, cavity assembly;21, front plate;211, first air inlet;212, first air outlet;213, second air outlet;22, back plate;221, first opening;222, second opening;223, third opening;23, U-shaped frame;24, cavity top plate;25, waveguide box assembly;3, microwave oven generating device;31, magnetron;32, transformer;33, high-voltage capacitor;34, high-voltage diode;4, drawer movement device;5, drawer door;6, air duct assembly;61, fan;62, first baffle;63, second baffle;7, total air duct;71, first air duct;72, second air duct;8, control panel;9, third air duct. DETAILED DESCRIPTION

[0025] The technical solution of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0028] Please see Figures 1 to 4 An embodiment of this utility model provides a drawer-type microwave oven.

[0029] The drawer-type microwave oven of this embodiment, such as Figures 1 to 2 As shown, it includes: outer shell 1, cavity assembly 2, microwave oven generator 3, drawer movement device 4, drawer door 5, and air duct assembly 6;

[0030] The outer wall of the cavity assembly 2 and the inner wall of the outer shell 1 form the main air duct 7. The cavity assembly 2 includes a front plate 21, a rear plate 22, a U-shaped frame 23, a cavity top plate 24, and a waveguide box assembly 25. The front plate 21, the rear plate 22, and the cavity top plate 24 are respectively fixed to the front, rear, and upper sides of the U-shaped frame 23 to form the furnace cavity frame. The waveguide box assembly 25 is fixed to the cavity top plate 24 and connected to the inside of the furnace cavity frame. A first air inlet 211 and a first air outlet are respectively provided on the lower side of the front plate 21. 212, the first air inlet 211 and the first air outlet 212 are respectively located at the left and right ends of the lower side of the front plate 21. The upper end of the front plate 21 is provided with a second air outlet 213. In order to ensure the airtight performance of the main air duct 7, the two sides of the front plate 21 and the rear plate 22 extend outward and abut against the inner wall of the outer shell 1, so that the inner cavity of the outer shell 1 is formed relatively closed, so that the main air duct 7 can generate sufficient negative pressure under the action of the fan 61, improve the air flow and fix its flow direction.

[0031] The air duct assembly 6 is arranged between the rear plate 22 and the outer shell 1, and comprises an air fan 61, a first baffle 62 and a second baffle 63. The first baffle 62 is transversely fixed to the middle part of the rear plate 22 to divide the total air duct 7 into a first air duct 71 and a second air duct 72. One end of each of the first air duct 71 and the second air duct 72 is communicated with the first air inlet 211 through the air fan 61. The other end of the first air duct 71 is communicated with the first air outlet 212. Specifically, a first opening 221 is arranged on one side of the rear plate 22 and communicated with the first air inlet 211. The air fan 61 is arranged between the first opening 221 and the inlet of the first air duct 71 and the second air duct 72, respectively. The first air duct 71 and the second air duct 72 are communicated with the first opening 221 through the air fan 61, thereby realizing the communication with the first air inlet 211. The other side of the rear plate 22 away from the first opening 221 is provided with a second opening 222. The second baffle 63 is fixed to the other side of the U-shaped frame 23 away from the first air inlet 211. The front end and the rear end of the second baffle 63 are fixedly connected with the front plate 21 and the rear plate 22, respectively, so as to form a sealed third air duct 9 between the second opening 222 and the second air outlet 213. The second opening 222 is communicated with the second air duct 72, thereby realizing the communication between the other end of the second air duct 72 and the second air outlet 213.

[0032] In the embodiment, the outer shell 1 comprises left and right side plates 11, a rear cover plate 12 and an outer shell top plate 13 which are spliced with each other. The rear cover plate 12 is provided with a second air inlet 121 communicated with the first air duct 71 and the second air duct 72.

[0033] In the embodiment, a third opening 223 is arranged on the rear plate 22 and communicated with the inner part of the oven cavity frame and the total air duct 7. The excess water vapor and heat in the inner part of the oven cavity frame can overflow from the third opening 223, and the wind in the first air duct 71 can well take away the part of heat.

[0034] The drawer moving device 4 and the microwave generating device 3 are arranged in the total air duct 7. The drawer door 5 is arranged at the front end of the outer shell 1 and connected with the drawer moving device 4 to realize the opening and closing. The microwave generating device 3 comprises a magnetron 31, a transformer 32, a high-voltage capacitor 33 and a high-voltage diode 34. The magnetron 31, the high-voltage capacitor 33 and the high-voltage diode 34 are arranged in the first air duct 71. The transformer 32 is arranged in the second air duct 72. The drawer moving device 4 penetrates through the rear plate 22 and is connected with the drawer door 5. The drawer moving device 4 is arranged in the second air duct 72. A control panel 8 is arranged on the front side of the outer shell 1.

[0035] The utility model discloses a working principle brief: the utility model discloses the lower end one side of front plate 21 sets up first air inlet 211, sets up second air outlet 213 and first air outlet 212 respectively on the upper end and the lower end of front plate 21 other side, cooperation first baffle 62 and second baffle 63 form double air duct structure, when machine starts, fan 61 starts work, because negative pressure principle, wind will inhale cold wind from the first air inlet 211 of front plate 21 and the second air inlet 121 of back cover plate 12, blows out from the air outlet of fan 61, enters first air duct 71 and second air duct 72 respectively, magnetron 31 is installed on waveguide box subassembly 25, and one end of waveguide box subassembly 25 is welded on furnace cavity frame body, and the other end is located in first air duct 71, high voltage capacitor 33 and high voltage diode 34 are installed on first baffle 62, and the third opening 223 of back plate 22 is opened, and the third opening 223 is composed of multiple small holes, and the third opening 223 is located in the passageway of first air duct 71, when the excess water vapor and heat in furnace cavity frame body can overflow first air duct 71 from the third opening 223, and the wind in first air duct 71 can take away this part of heat well, thereby realizing the heat dissipation of first air duct 71, that is, fan 61 inhales wind, and first baffle 62 of fan 61 divides wind into two, and one part of wind flows to first air duct 71 and passes magnetron 31, high voltage capacitor 33 and high voltage diode in proper order, the third opening 223 of back plate 22, then wind flows to the top plate 13 of shell, and is discharged from the first air outlet 212 on the upper portion of front plate 21.

[0036] The other road wind of fan 61 blow, enters second air duct 72, and passes motor and gear portion of drawer movement device 4, high voltage transformer 32 in proper order, then passes the bottom of U-shaped frame 23 from the second opening 222 of back plate 22, and the bottom of U-shaped frame 23 is installed with second baffle 63 and forms third air duct 9, guarantees that hot air will not mix with the cold wind of the air inlet described in the foregoing, to discharge from the bottom of front plate 21.

[0037] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A drawer-type microwave oven, characterized in that, The utility model relates to a microwave oven, which comprises a shell (1), a cavity assembly (2), a microwave oven generating device (3), a drawer moving device (4), a drawer door (5) and an air duct assembly (6). The outer wall of the cavity assembly (2) and the inner wall of the shell (1) form a total air duct (7), and a first air inlet (211) and a first air outlet (212) are arranged on the lower side of the front end of the cavity assembly (2) respectively. The air duct assembly (6) is arranged between the rear plate (22) and the shell (1), and comprises a fan (61) which is fixed to the outer wall of the cavity assembly (2) and arranged in the total air duct (7), one end of the total air duct (7) is communicated with the first air inlet (211) through the fan (61), and the other end of the total air duct (7) is communicated with the first air outlet (212) and the second air outlet (213) respectively. The drawer moving device (4) and the microwave oven generating device (3) are arranged in the total air duct (7), and the drawer door (5) is arranged on the front end of the shell (1) and connected with the drawer moving device (4) to realize opening and closing. The cavity assembly (2) comprises a front plate (21), a rear plate (22), a U-shaped frame (23), a cavity top plate (24) and a waveguide box assembly (25), the front plate (21), the rear plate (22) and the cavity top plate (24) are fixed to the front side, the rear side and the upper side of the U-shaped frame (23) respectively to form an oven cavity frame, the waveguide box assembly (25) is fixedly arranged in the cavity top plate (24) and connected with the inside of the oven cavity frame, the first air inlet (211) and the first air outlet (212) are arranged on the lower end of the front plate (21) respectively, and the second air outlet (213) is arranged on the cavity top plate (24).

2. The drawer-type microwave oven according to claim 1, wherein The outer edges of the front plate (21) and the rear plate (22) are fixedly connected with the inner wall of the shell (1).

3. The drawer-type microwave oven according to claim 2, wherein A first opening (221) is arranged on one side of the rear plate (22) and communicated with the first air inlet (211).

4. The drawer-type microwave oven according to claim 3, wherein A third opening (223) is arranged on the rear plate (22) and communicated with the inside of the oven cavity frame and the total air duct (7) respectively.

5. The drawer-type microwave oven according to claim 2, wherein The air duct assembly (6) further comprises a first baffle (62) which is fixedly arranged in the middle of the rear plate (22) to form a first air duct (71) and a second air duct (72) by spacing the total air duct (7), one end of the first air duct (71) and the second air duct (72) is communicated with the first air inlet (211) through the fan (61), the other end of the first air duct (71) is communicated with the first air outlet (212), and the other end of the second air duct (72) is communicated with the second air outlet (213).

6. The drawer-type microwave oven according to claim 4, wherein ​ 7. The drawer-type microwave oven according to claim 6, wherein The air duct assembly (6) further comprises a second baffle (63), the back plate (22) is provided with a second opening (222) on the other side away from the first opening (221), the second baffle (63) is fixed to the U-shaped frame (23) on the other side away from the first air inlet (211), the front and back ends of the second baffle (63) are respectively fixed to the front plate (21) and the back plate (22), so that the second opening (222) and the second air outlet (213) form a closed third air duct (9).

8. The drawer-type microwave oven according to claim 7, wherein The microwave oven generating device (3) comprises a magnetron (31), a transformer (32), a high-voltage capacitor (33) and a high-voltage diode (34), the magnetron (31), the high-voltage capacitor (33) and the high-voltage diode (34) are arranged in the first air duct (71), and the transformer (32) is arranged in the second air duct (72).

9. The drawer-type microwave oven according to claim 8, wherein The drawer movement device (4) is connected to the drawer door (5) through the back plate (22), and the drawer movement device (4) is arranged in the second air duct (72), and a control panel (8) is arranged on the front side of the shell (1).

10. The drawer-type microwave oven according to claim 7, wherein The shell (1) comprises left and right side plates (11), a back cover plate (12) and a shell top plate (13) which are spliced with each other, and the back cover plate (12) is provided with a second air inlet (121) which is communicated with the first air duct (71) and the second air duct (72).

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