JPH0131850Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a microwave oven-equipped kitchen furniture that prevents the interior of the furniture from being overheated due to the heat radiated from the microwave oven, such as a storage shelf that incorporates a microwave oven. Regarding overheating prevention structure of furniture.

In recent years, kitchen furniture with a microwave oven that can be used by incorporating a microwave oven into the kitchen furniture, such as a storage shelf, has been proposed and put into practical use. In the case of such kitchen furniture equipped with a microwave oven, there was a risk that the heat dissipated as the microwave oven was used would be trapped inside the furniture and cause the furniture to overheat. In particular, in the case of a microwave oven equipped with an oven that has a heating means for heating over a direct flame and which causes a large temperature rise, there is a high risk of overheating.

This idea efficiently discharges the heat radiated from the microwave to the outside of the furniture that incorporates the microwave oven, thereby preventing the heat from becoming trapped inside and preventing the furniture from overheating. The present invention aims to provide a structure for preventing overheating of kitchen furniture equipped with a microwave oven, which will be described in detail below with reference to the drawings. Although the drawing shows an embodiment in which this invention is applied to a storage shelf, it can be similarly applied to furniture for rooms other than storage shelves.

Referring to FIGS. 1 and 2, the storage shelf 1 includes a lower stand 4 having a pull-out tray 2 and a pull-out table 3, a microwave oven rack 6 housing a microwave oven 5, and an upper stand 7 having an opening door. three parts 4,
6 and 7 are successively stacked and connected from the bottom. However, it goes without saying that the storage shelf 1 is not limited to such a structure.

As shown in the figure, the microwave oven rack 6 to which this invention is applied is a rectangular box with an open front, and there are sufficient spaces 8, 9, and 10 on the top, bottom, and rear surfaces of the microwave oven 5 housed therein. However, the dimensions are such that a slight gap 11 remains on both sides of the microwave oven 5. That is, the microwave oven 5 is suspended in the microwave oven rack 6,
Support rails 12 are fixed to both inner surfaces of the rack 6 to support the microwave oven 5. A lattice-shaped decorative plate 13 is fixed to the front end surfaces of the upper space 8 and the lower space 9, and closes off the front surfaces of the spaces 8 and 9 while allowing air to circulate. The inner surface of the rack 6 is preferably covered with a noncombustible material such as gypsum board.

The microwave oven 5 housed in the rack 6 is preferably equipped with heating means for direct heating and has an oven function, and the operation of the microwave oven is assisted by electronic equipment including a microcomputer and magnetic tape. has been done. As shown in FIG. 6, a large number of air holes 14 and 15 are formed on the back and both side surfaces of the microwave oven 5. A blower fan 16 is disposed deep inside the lower space 9, and a flat box-shaped duct 17 that receives the amount of air discharged from the blower fan 16 is disposed at the lower part of the back space 10. As shown in FIGS. 4 and 5, the duct 17 has an opening 18 formed in a part of its lower surface corresponding to the blower fan 16, and two openings 19 and 20 formed in its upper surface. Then, it communicates with the two openings 19 and 20 on the top surface.
Two ventilation frames 21 and 22 are arranged within the back space 10. As shown in FIG. 5, the blower frames 21 and 22 are roughly shaped frames with open bottom, front, and rear surfaces; the rear surface is closed by the back plate of the microwave oven rack 6, and the front surface is closed by the back plate of the microwave oven rack 6. Close to the back. In order to improve this close contact state, it is formed into a shape that resembles the shape of the protrusion on the back surface of the microwave oven 5. The air from the blower fan 16 is sent into the cabinet main body of the microwave oven 5 through the air holes 15 on the back side of the microwave oven 5 via the duct 17 and the air blow frames 21 and 22, and then through the air holes on both sides of the microwave oven 5. Escape from 14.
In the illustrated embodiment, the inside of the cabinet of the microwave oven 5 is divided into a magnetron mounting section and an operating equipment mounting section such as a microcomputer, and a small-capacity fan is concentrated into these two compartments. In order to efficiently send cooling air, the air blowing frames are formed separately.

Air escaping from the air holes 14 on both sides of the microwave oven 5 passes through the upper surface space 8 and is discharged into the atmosphere from the front surface of the space 8. A thermostat 23 is arranged deep inside the upper surface space 8, and the thermostat 2
When the temperature inside the rack 6 rises to the predetermined temperature (for example, 50°C) detected in step 3, the blower fan 16
operation is started, the inside of the microwave oven 5 is cooled as described above, and the hot air is discharged to the outside of the rack 6. In this case, the cooling air is blown into the microwave oven 5 from the lower surface space 9 through the duct 17 and the blower frames 21 and 22, and the exhaust air from the microwave oven 5 is blown into the microwave oven 5.
The air is discharged from the side surface of the rack 6 through the upper surface space 8, and since the air blowing and exhaust passages are separated from each other, air blowing and exhaust air can be carried out extremely well without interfering with each other.

As described above, according to this invention, spaces 8, 9, 10, and 11 are formed in the square box-shaped rack 6 with an open front surface, and the spaces 8, 9, 10, and 11 are communicated with each other on the upper and lower surfaces, both side surfaces, and the back surface, and the microwave oven 5 is is inserted, the upper and lower spaces 8 and 9 are communicated with the outside from the front surface of the rack 6, a blower fan 16 is arranged deep inside the lower space 9, and an opening 18 is aligned with the outlet of the blower fan 16. A flat box-shaped duct 17 having
Two roughly shaped ventilation frames 21 and 22 are arranged in the back space 10, and the rear surfaces of the ventilation frames 21 and 22 are closed by the back plate of the rack 6, and the front surfaces are closed by the back surface of the microwave oven 5. At the same time, a thermostat 23 for detecting the temperature inside the rack 6 and controlling the operation of the blower fan 16 is arranged deep inside the upper surface space 8, and the air holes 14 on both sides of the microwave oven 5 are connected to the air holes 14 on both sides of the microwave oven 5. 11, the back air hole 15 of the microwave oven 5 corresponding to the magnetron mounting part is connected to one of the ventilation frames 22, and the back air hole 15 of the microwave oven 5 corresponding to the operating device mounting part is connected to one of the ventilation frames 22.
are connected to the other air blower frame 21, so there is a space between the microwave oven 5 housed in the rack 6 and the inner surface of the rack 6 on its entire surface, so that the microwave oven 5 generates It is difficult for heat to be transmitted to the rack 6, which is effective in preventing overheating, and the cooling air sent from the ventilation frames 21 and 22 passes through the inside of the microwave oven 5 and is discharged from the sides, thereby allowing the space 11 on both sides and the space 8 on the top surface 8. Since the air is forcibly discharged from the front of the rack 6 to the outside via the Since the cooling air is divided and formed so as to feed cooling air intensively to the heat generating part of the fan, cooling air can be efficiently fed with a small capacity fan.

[Brief explanation of the drawing]

Figure 1 is a top view of a storage shelf to which this idea is applied.
Figure 2 is a vertical side view of the same, Figure 3 is a vertical side view of the main part, Figure 4 is a cross-sectional view of the main part seen from the back, Figure 5 is a perspective view of the duct and ventilation frame, and Figure 6 is the electronic It is a perspective view of a microwave oven. 1...Storage shelf, 5...Microwave oven, 6...Microwave rack, 8...Top space, 9...Bottom space, 10...Back space, 14, 15...Air hole,
16...Blower fan, 17...Duct, 21,2
2...Blower frame.

Claims (1)

[Scope of utility model registration request] Inside a square box-shaped rack 6 with an open front, there are spaces 8, 9, which communicate with each other on the top and bottom, both sides, and the back.
10 and 11, a microwave oven 5 is inserted therein, the upper and lower spaces 8 and 9 are communicated with the outside from the front of the rack 6, and a blower fan 16 is arranged deep inside the lower space 9. A flat box-shaped duct 17 having an opening 18 that matches the outlet of the blower fan 16 is disposed at the lower part of the back space 10, and two approximately-shaped box-shaped ducts 17 are arranged in the lower part of the back space 10, and two approximately The ventilation frames 21 and 22 are arranged in the back space 10, and the rear surfaces of the ventilation frames 21 and 22 are closed by the back plate of the rack 6, and the front surfaces are closed by the back surface of the microwave oven 5, and the inner depths of the upper surface space 8 are closed. A thermostat 23 that detects the temperature inside the rack 6 and controls the operation of the blower fan 16 is disposed in the microwave oven 5, and the air holes 14 on both sides of the microwave oven 5 are communicated with the spaces 11 on both sides. Connect the back air hole 15 of the corresponding microwave oven 5 to one of the ventilation frames 22
The overheating prevention structure for kitchen furniture with a microwave oven is characterized in that the back air holes 15 of the microwave oven 5 corresponding to the operating device mounting portions are communicated with the other blower frame 21, respectively.