KR20000060555A - Over-the-Range microwave oven - Google Patents

Abstract

PURPOSE: A wall mounted microwave oven is provided to increase volume of an air suction/discharge without increasing power consumption of a hood motor. CONSTITUTION: A microwave oven comprises a duct unit(200) for ventilation, and a blower unit(400) installed onto the vertical center of the duct unit(200). The duct unit further comprises a front suction duct(252) and a front outlet duct(251) arranged in front of the blower unit. A rear suction duct(254) and a rear discharge duct(253) are arranged in the rear of the blower unit. Blower fans(461,462) are lengthened in a horizontal direction, and an additional suction port is further arranged at an outlet side without increasing diameter of the blower fan and the suction port of the blower fan, thereby increasing an overall sectional area of the suction port.

Description

Wall-mounted microwave oven {Over-the-Range microwave oven}

The present invention relates to a wall-mounted microwave oven, and more particularly to a wall-mounted microwave oven having a ventilation function.

In general, an over-the-range microwave oven is a microwave oven mainly installed on a wall above a household gas stove, and performs a ventilation function of sucking / exhausting indoor air together with a cooking function using microwaves.

1 is an exploded perspective view showing a conventional wall-mounted microwave oven, Figure 2 is a cross-sectional view showing a front air discharge state of the conventional wall-mounted microwave oven, Figure 3 is a side cross-sectional view of FIG. Here, reference numeral 10 is a cooking unit, 11 is a door, 12 is a control panel, 20 is a duct part, 21a and 21b are left and right suction ducts, 22a and 22b are left and right suction inlets, 23a and 23b are upper guide ducts, 25 Is the front exhaust duct, 26 is the grille, 27 is the blower unit seat, 27a and 27b is the rear outlet, 28a and 28b is the front outlet, 30 is the cover, 40 is the blower unit, 41 is the blower plate, 41a and 41b is the top outlet , 42 are hood motors, 43a and 43b blower cases, 44a and 44b outlets, 45a and 45b inlet vents, 46a and 46b blower fans, and 50 are odor removal filters.

The conventional wall-mounted microwave oven is divided into a cooking unit 10 for performing a cooking function using microwaves and a duct unit 20 for sucking / discharging indoor air as described above. The front door 11 and the control panel 12 is formed in front of the cooking unit 10, the duct portion 20 is formed on both sides and the upper portion of the cooking unit 10. The duct part 20 is surrounded by the cover 30, the left side and the right side to form the appearance of the microwave oven. Here, since the function of the cooking unit 10 is the same as a normal microwave oven, detailed description thereof will be omitted, and only the duct unit 20 and the blower unit 40 will be described. The duct portion 20 is composed of left and right suction ducts 21a and 21b, upper guide ducts 23a and 23b, front discharge ducts 25, grills 26 and blower unit seating portions 27. It performs ventilation function and forms symmetrical structure on the whole.

The left and right suction ducts 21a and 21b are formed in the vertical direction on the left and right sides of the duct portion 20, respectively, and have respective suction ports 22a and 22b open on the bottom thereof to suck indoor air. . The blower unit seating part 27 is formed in the back of the upper center of the duct part 20. The upper guide ducts 23a and 23b extend from the upper end portions of the left and right suction ducts 21a and 21b to the left and right sides of the blower unit seating portion 27 and suck the air sucked into the blower unit seating portion ( 27). The blower unit seating part 27 is open | released upward and left and right sides, the rear discharge port 27a, 27b is formed in the back, and the front discharge port 28a, 28b is formed in the front. In addition, a front discharge duct 25 in which the odor removal filter 50 is accommodated is formed in front of the front discharge ports 28a and 28b, and a grill 26 is formed in front of the front discharge duct 25.

The blower unit 40 is accommodated in the blower unit seating part 27, and the blower plate 41 is coupled to the upper end thereof. The blower plate 41 is provided with upper discharge ports 41a and 41b thereon. A hood motor 42 is formed in the center of the blower unit 40, and blower fans 46a and 46b wrapped around the blower cases 43a and 43b are arranged on the left and right sides thereof. The blower cases 43a and 43b are formed with suction ports 45a and 45b communicating inwardly of the respective blower fans 46a and 46b on the outer side thereof, and the circumferences of the blower fans 46a and 46b. Discharge ports 44a and 44b are formed in either direction. In addition, the blower unit 40 has a square shape when viewed from the side, and according to the installation direction of the blower unit 40, that is, the direction of the discharge ports 44a and 44b, the discharge direction of the indoor air is forward and upward. And rearward. In addition, the suction direction of the indoor air is fixed in the direction of the left and right suction ports 45a and 45b.

Looking at the front air discharge action of the conventional wall-mounted microwave oven configured as described above in more detail with reference to Figs.

First, the blower unit 40 is installed in the blower unit seating part 27 so that the installation direction of the blower unit 40, that is, the direction of the discharge ports 44a and 44b of the blower cases 43a and 43b, faces forward. (44b) to correspond to the front outlet (28a, 28b) of the blower unit seating portion (27). When steam or smoke is generated by cooking the stove in such a state, the user operates the duct part 20 of the wall-mounted microwave oven to discharge the steam or smoke to the outside. That is, when the hood motor 42 is rotated by the user's operation, the hood motor 42 rotates the blower fans 46a and 46b arranged on the left and right sides thereof. Therefore, the indoor air including the steam or the smoke is sucked into the left and right suction ducts 21a and 21b through the respective suction ports 22a and 22b below the duct part 20 and the upper guide duct 23a. It moves along 23b, and is sucked into blower fan 46a, 46b via the suction ports 45a, 45b by the side of blower case 43a, 43b. The air sucked in this way is dispersed in the circumferential direction by the rotation action of the blower fans 46a and 46b, and then discharged to the outlets 44a and 44b of the blower cases 43a and 43b. In addition, the air is guided to the front discharge duct 25 through the front discharge ports 28a and 28b of the blower unit seating portions 27 corresponding to the discharge ports 44a and 44b. The guided air is purged while passing through the odor removing filter 50 and then discharged into the room through the grill 26.

In addition, referring to Figures 4 to 6 attached to the rear air discharge action of the conventional wall-mounted microwave oven, first, the installation direction of the blower unit 40, that is, the discharge port (44a) of the blower case (43a) 43b ( 44b is installed in the blower unit seating part 27 so that the direction of it is rearward as shown in FIG. 4, and the outlet ports 44a and 44b are rear outlets 27a and 27b of the blower unit seating part 27. After coping with, fix the microwave to the wall surface on which the house duct 60 is formed. At this time, the rear outlets 27a and 27b correspond to the house duct 60 formed on the wall surface. When steam or smoke is generated by cooking the stove in such a state, the user operates the duct part 20 of the wall-mounted microwave oven to discharge the steam or smoke to the outside. At this time, the normal indoor air suction action is as described with reference to Figs. 1 to 3, except that the air discharged to the outlet (44a, 44b) of the blower case (43a) 43b in the case of discharging the sucked air Is guided to the house duct 60 via the rear discharge port 27a, 27b of the blower unit seating portion 27 corresponding to the discharge ports 44a, 44b and discharged to the outside.

In addition, referring to Figures 7 and 8 attached to the upward air discharge action of the conventional wall-mounted microwave oven, first, the installation direction of the blower unit 40, that is, the outlet 44a (blower case 43a, 43b) ( The blower plate 41 is coupled to the blower unit seating portion 27 so that the direction of 44b is upward, as shown in FIG. 7, and the outlet holes 44a and 44b are blower plates 41. To correspond to the upper discharge ports 41a and 41b. At this time, it is preferable that a separate extension pipe 61 extending outward through the upper wall surface is connected to the upper discharge ports 41a and 41b. When steam or smoke is generated by cooking the stove in such a state, the user operates the duct part 20 of the wall-mounted microwave oven to discharge the steam or smoke to the outside. At this time, the normal indoor air suction action is as described with reference to Figures 1 to 3, except that the air discharged to the discharge port (44a, 44b) of the blower case (43a) 43b during the discharge of air is this discharge port (44a) It is guided to the extension pipe 61 through the upper discharge port (41a) (41b) of the blower plate 41 corresponding to the (44b) is discharged to the outside.

However, the conventional wall-mounted microwave oven as described above can change the discharge direction of the indoor air to the front, upper and rear, etc. according to the installation direction of the blower unit, that is, the direction of the discharge port, while the suction direction of the indoor air is It is fixed in the direction of the left and right suction ports. Therefore, since the amount of air sucked through the left and right suction ports is fixed at a constant amount in proportion to the diameter of the blower fan and the suction port and the rotational force of the hood motor, the suction amount of the indoor air and its discharge amount cannot be increased. There is a problem.

In addition, in order to increase the air intake amount, the diameter of the blower fan and its intake port may be increased or the rotational force of the hood motor may be increased, but in the former case, the volume or height of the microwave oven may be increased or the size of the cooking portion may be relatively increased. In the latter case, there is a problem in that the power consumption increases as the rotational force of the hood motor increases.

Accordingly, the present invention has been made to solve the above-mentioned problems, and the first object of the present invention is not to increase the volume or height of the microwave oven, and also to increase the suction / intake of indoor air without increasing the power consumption of the hood motor. To provide a wall-mounted microwave oven that can increase emissions.

The second object of the present invention is to provide a blower unit of a wall-mounted microwave oven which can increase the intake / discharge amount of air without increasing the diameter of the blower fan and its intake port and without increasing the power consumption of the hood motor. have.

1 is an exploded perspective view showing a conventional wall-mounted microwave oven,

Figure 2 is a plan sectional view showing a front air discharge state of the conventional wall-mounted microwave oven,

3 is a side cross-sectional view of FIG.

Figure 4 is a perspective view of the main part showing the rear air discharge state of the conventional wall-mounted microwave oven,

5 is a side cross-sectional view of FIG. 4;

Figure 6 is a perspective view showing a kitchen structure for installing the wall-mounted microwave oven of Figure 4,

Figure 7 is a perspective view of the main part showing the upper air discharge state of the conventional wall-mounted microwave oven,

8 is a side cross-sectional view of FIG. 7;

9 is an exploded perspective view showing a preferred embodiment of the wall-mounted microwave oven according to the present invention;

10 is a rear perspective view of FIG. 9;

FIG. 11 is an enlarged side cross-sectional view of the blower unit of FIG. 9; FIG.

12 is a cross-sectional view showing a front air intake / discharge state of the wall-mounted microwave oven according to the present invention,

FIG. 13 is a side cross-sectional view of FIG. 11;

Figure 14 is an exploded perspective view of the main part showing the rear air suction / discharge state of the wall-mounted microwave oven according to the present invention,

15 is a perspective view of the main cutaway in more detail showing the air flow of FIG.

16 is a plan sectional view of FIG. 14;

17 is a side cross-sectional view of FIG. 14;

18 is an exploded perspective view of a main portion showing an upper air suction / discharge state of the wall-mounted microwave oven according to the present invention;

19 is a side cross-sectional view of FIG. 18.

* Description of the symbols for the main parts of the drawings *

10: cooking unit 200: duct unit

211, 212: left and right suction ducts 221, 222: left and right suction inlets

231, 232: upper duct 251: front discharge duct

252: front suction duct 253: rear discharge duct

253a, 253b: Rear discharge port 253c, 253d: Rear discharge port

254: rear suction duct 255: plate

260 grill 270 blower unit seat

271, 272: rear outlet 281, 282: front outlet

400: blower unit 410: blower plate

420: hood motor 431, 432: blower case

441, 442: outlet 451, 452: first inlet

453, 454: second inlet 461, 462: blower fan

463, 464: extension

Features of the wall-mounted microwave oven according to the present invention for achieving the above object, in the wall-mounted microwave oven, a duct unit for performing a ventilation function; And a blower unit installed in the longitudinal center portion of the upper end of the duct portion.

Here, the duct unit includes a front suction duct and a front discharge duct formed side by side up and down to face the front of the blower unit, respectively. The duct unit is a left and right suction duct respectively formed in the vertical direction on the left and right sides; And respective upper guide ducts extending from the upper ends of the left and right suction ducts to the left and right sides of the blower unit and communicating with the front suction ducts.

The blower unit is a hood motor; Blower fans arranged on the left and right sides of the hood motor; And a blower surrounding the blower fan, the first inlet being formed on each outer side of the blower fan to communicate with the inside of the blower fan, and the outlet and the second inlet being formed side by side in one of the circumferential directions of the blower fan. Include the case. In addition, the respective blower fans are eccentrically installed toward the second inlet, so that a predetermined pressure difference occurs between the respective outlets and the second inlet inside the blower case. The blower fan also has respective extensions having their lengths extended laterally. The discharge port corresponds to the front discharge duct, and the second suction port is installed to correspond to the front suction duct.

On the other hand, the duct part includes a rear suction duct and a rear discharge duct formed side by side up and down to face the rear of the blower unit, respectively. The duct unit is a left and right suction duct respectively formed in the vertical direction on the left and right sides; And respective upper guide ducts extending from the upper ends of the left and right suction ducts to the left and right sides of the blower unit and communicating with the rear suction ducts.

The blower unit is a hood motor; Blower fans arranged on the left and right sides of the hood motor; And a blower surrounding the blower fan, the first inlet being formed on each outer side of the blower fan to communicate with the inside of the blower fan, and the outlet and the second inlet being formed side by side in one of the circumferential directions of the blower fan. Include the case. The outlet may correspond to the rear discharge duct, and the second suction port may be installed to correspond to the rear suction duct.

In addition, the rear discharge duct has an upper discharge opening that is open upward; And a rear outlet opening rearward. In addition, further comprising a plate for selectively opening and closing the upper outlet or the rear outlet.

In addition, the blower unit is detachably installed with respect to the duct portion.

Features of the wall-mounted microwave oven according to the first embodiment of the present invention, in the wall-mounted microwave oven, the hood motor is installed in the longitudinal center of the upper end; Blower fans arranged on the left and right sides of the hood motor; Each blower case surrounding the blower fan and having a first inlet formed on each outer side thereof to communicate with the inside of the blower fan, and having an outlet and a second inlet formed side by side in a circumferential direction of the blower fan. ; A front discharge duct formed to face forward and corresponding to the outlet; A front suction duct formed to face forward under the front discharge duct and corresponding to the second suction hole; Left and right suction ducts respectively formed in the vertical direction on the left and right sides; And upper upper ducts extending from the upper ends of the left and right suction ducts to the first suction ports and communicating with the front suction ducts.

Features of the wall-mounted microwave oven according to a second embodiment of the present invention, in the wall-mounted microwave oven, the hood motor is installed in the longitudinal center portion of the upper end; Blower fans arranged on the left and right sides of the hood motor; Each blower case surrounding the blower fan and having a first inlet formed on each outer side thereof to communicate with the inside of the blower fan, and having an outlet and a second inlet formed side by side in a circumferential direction of the blower fan. ; A rear exhaust duct formed to face rear and corresponding to the outlet; A rear suction duct formed to face rearward below the rear discharge duct and corresponding to the second suction hole; Left and right suction ducts respectively formed in the vertical direction on the left and right sides; And upper upper ducts extending from the upper ends of the left and right suction ducts to the first suction ports and communicating with the rear suction ducts.

Features of the wall-mounted microwave oven according to a third embodiment of the present invention, in the wall-mounted microwave oven, the hood motor is installed in the longitudinal center portion of the upper end; Blower fans arranged on the left and right sides of the hood motor; Each blower case surrounding the blower fan and having a first inlet formed on each outer side thereof to communicate with the inside of the blower fan, and having an outlet and a second inlet formed side by side in a circumferential direction of the blower fan. ; A rear discharge duct formed so as to face rearward and having an upper discharge opening having one end corresponding to the discharge opening and an upper discharge opening opened at the other end thereof, and a rear discharge opening opened rearward; A plate for selectively opening and closing the upper outlet or the rear outlet; A rear suction duct formed to face rearward below the rear discharge duct and corresponding to the second suction hole; Left and right suction ducts respectively formed in the vertical direction on the left and right sides; And upper upper ducts extending from the upper ends of the left and right suction ducts to the first suction ports and communicating with the rear suction ducts.

In addition, the blower unit of the wall-mounted microwave oven according to the present invention, the hood motor; Blower fans arranged on the left and right sides of the hood motor; And a blower surrounding the blower fan, the first inlet being formed on each outer side of the blower fan to communicate with the inside of the blower fan, and the outlet and the second inlet being formed side by side in one of the circumferential directions of the blower fan. Include the case. Each blower fan is eccentrically installed toward the second inlet, so that a predetermined pressure difference is generated between the respective outlet and the second inlet inside the blower case. The blower fans have respective extensions extending in length in the transverse direction.

Therefore, the blower fan and the intake port is formed without increasing the diameter of the inlet, so that a separate inlet port is formed on one side of the outlet port to increase the overall cross-sectional area of the inlet port, and the blower fan whose length is extended in the transverse direction is applied. It does not increase the volume or height of the microwave oven, and also increases the intake / discharge amount of indoor air without increasing the power consumption of the hood motor.

Hereinafter, with reference to the accompanying drawings will be described in detail preferred embodiments of the wall-mounted microwave oven according to the present invention.

Figure 9 is an exploded perspective view showing a preferred embodiment of the wall-mounted microwave oven according to the present invention, Figure 10 is a rear perspective view of Figure 9, Figure 11 is an enlarged side cross-sectional view of the blower unit of FIG.

Here, reference numeral 10 denotes a cooking unit, 11 a door, 12 a control panel, 30 a cover, 50 a odor removing filter, 200 a duct part, 211 and 212 are left and right suction ducts, and 221 and 222 are left and right sides. Inlet, 231 and 232 are top guide ducts, 251 are front discharge ducts, 252 are front suction ducts, 253 are rear discharge ducts, 253a and 253b are rear discharge outlets, 253c and 253d are rear discharge ducts, 254 are rear suction ducts, 255 Plate, 26 grille, 270 blower unit seat, 271 and 272 rear outlet, 273 and 274 rear inlet, 281 and 282 front outlet, 283 and 284 front inlet, 400 blower unit, 410 blower Plate, 420 is hood motor, 431 and 432 are blower cases, 441 and 442 are outlets, 451 and 452 are first inlets, 453 and 454 are second inlets, 461 and 462 are blower fans, 463 and 464 are extensions .

The wall-mounted microwave oven of the present invention is classified into a cooking unit 10 for performing a cooking function using microwaves and a duct unit 200 for sucking / discharging indoor air as described above. The door 11 and the control panel 12 are formed in front of the cooking unit 10, and the duct part 200 is formed at both sides and above the cooking unit 10. The duct part 200 is surrounded by the cover 30, the left side and the right side to form the appearance of the microwave oven. Here, since the function of the cooking unit 10 is the same as the microwave oven of the prior art, a detailed description thereof will be omitted, and only the duct unit 200 and the blower unit 400 will be described.

The duct part 200 includes left and right suction ducts 211 and 212, upper guide ducts 231 and 232, front discharge ducts 251 and front suction ducts 252, rear discharge ducts 253, and It consists of the rear suction duct 254, the grill 26, the blower unit seating portion 270 performs a ventilation function and forms a symmetrical structure as a whole. The left and right suction ducts 211 and 212 are formed in the vertical direction on the left and right sides of the duct part 200, respectively, and have respective suction ports 221 and 222 open on the bottom thereof to suck the indoor air. .

The blower unit seating part 270 is formed in the longitudinal center part of the upper end of the duct part 200. The blower unit seating portion 270 is opened upwards, left and right sides thereof, and the rear discharge ports 271 and 272 and the rear suction openings 273 and 274 are formed to the rear of the blower unit seating part 270, and the front discharge holes 281 (the 282 and front suction openings 283 and 284 are formed side by side and up, respectively.

A front discharge duct 251 in which the odor removal filter 50 is accommodated is formed in front of the front discharge ports 281 and 282, and a grill 26 is formed in front of the front discharge duct 251. In addition, a front suction duct 252 is formed in front of the front suction openings 283 and 284. Therefore, the front discharge duct 251 and the front suction duct 252 are formed side by side, up and down to face the front of the blower unit receiving portion 270, respectively.

In addition, a rear discharge duct 253 is formed at the rear of the rear discharge ports 271 and 272, and a rear suction duct 254 is formed at the rear of the rear suction ports 273 and 274. Therefore, the rear discharge duct 253 and the rear suction duct 254 are formed side by side and up and down to face the rear of the blower unit accommodating part 270, respectively. In addition, the rear discharge outlets 253a and 253b which are opened upward and rearward discharge ports 253c and 253d which are opened upward are formed at the rear of the rear discharge duct 253. In addition, the plate 255 selectively opens and closes the rear upper discharge ports 253a and 253b or the rear discharge ports 253c and 253d.

The upper guide ducts 231 and 232 extend from the upper end of the left and right suction ducts 211 and 212 to the left and right sides of the blower unit seating part 270, and the front suction duct 252 and the rear side. The air sucked in communication with the suction duct 254 is guided toward the blower unit seating part 270.

The blower unit 400 is accommodated in the blower unit seating part 270, and a blower plate 410 is coupled to the upper part of the blower unit seating part 270. A hood motor 420 is formed in the center of the blower unit 400, and blower fans 461 and 462 wrapped around the blower cases 431 and 432 are arranged on the left and right sides thereof.

The blower cases 431 and 432 surround the blower fans 461 and 462, and first suction openings 451 and 452 are formed on the outer side surfaces of the blower fans 461 and 462, respectively. Inwardly communicating, discharge ports 441 and 442 and second suction ports 453 and 454 are formed side by side in either of the circumferential directions of the blower fans 461 and 462. Each of the blower fans 461 and 462 is eccentrically installed toward the second inlet 453 and 454 so that each of the outlets 441 and 442 in the blower cases 431 and 432 is formed. A predetermined pressure difference is caused to occur at the two suction ports 453 and 454. The blower fans 461 and 462 also have respective extensions 463 and 464 that extend in length in the lateral direction.

In addition, since the blower unit 400 is detachably installed at the blower unit seating part 270, the installation direction of the blower unit 400, that is, the outlets 441, 442 and the second suction holes 453 and 454. Depending on the direction of), the intake / discharge direction of the indoor air can be changed to the front and the rear.

The operation of the wall-mounted microwave oven according to the present invention configured as described above will be described in more detail with reference to FIGS. 12 to 19.

12 is a plan sectional view showing the front air intake / exhaust state of the wall-mounted microwave oven according to the present invention, Figure 13 is a side cross-sectional view of FIG. As shown, the front air intake / exhaust action of the present invention is the installation direction of the blower unit 400, that is, the outlets 441 and 442 and the second intakes 453 and 454 of the blower cases 431 and 432. ) Is installed on the blower unit seating part 270 with the direction of the forward direction. In this case, the outlets 441 and 442 correspond to the front outlets 281 and 282 of the blower unit seating part 270 and the front discharge duct 251 in front thereof, and the second inlet 453 ( 454 corresponds to the front suction openings 283 and 284 of the blower unit seating portion 270 and the front suction duct 252 in front of the blower unit seating portion 270.

When steam or smoke is generated by cooking of the gas stove in such a state, the user operates the duct 200 of the wall-mounted microwave oven to discharge the steam or smoke to the outside. That is, when the hood motor 420 is rotated by the user's manipulation, the hood motor 420 rotates the blower fans 461 and 462 arranged on the left and right sides thereof. Accordingly, the indoor air including the steam or the smoke is sucked into the left and right suction ducts 211 and 212 through the respective suction ports 221 and 222 below the duct part 200, and the upper guide duct 231. It moves along 232 and is sucked into the blower fan 461 and 462 via the inlet 451 and 452 of the blower case 431 and 432 side surface.

In addition, a part of the indoor air is also sucked into the front suction duct 252 communicating with the left and right suction ducts 211 and 212, and the front suction holes 283 and 284 of the blower unit seating part 270 and the first suction duct 252 are connected. It is sucked into the blower cases 431 and 432 via the two suction ports 453 and 454. Here, each of the blower fans 461 and 462 is eccentrically installed toward the second suction holes 453 and 454 so that the respective discharge ports 441 and 442 in the blower cases 431 and 432 are disposed. And a predetermined pressure difference occurs between the second suction openings 453 and 454. That is, in FIG. 11, low pressure is generated in a wide space on the side of symbol A, and high pressure is generated in a narrow space on the side of symbol B. The pressure moves to the space on the lower side of A. Accordingly, the indoor air is sucked from the second suction holes 453 and 454. In addition, since the blower fans 461 and 462 have respective extensions 463 and 464 extended in length in the lateral direction, the blower fans 461 and 462 suck more air.

The air sucked in this way is discharged to the outlets 441 and 442 of the blower cases 431 and 432. In addition, the air is guided to the front discharge duct 251 through the front discharge ports 281 and 282 of the blower unit seating portion 270 corresponding to the discharge ports 441 and 442. The guided air is purged while passing through the odor removing filter 50 and then discharged to the room through the grill 26, thereby further increasing the intake / discharge amount of indoor air.

In addition, Figure 14 is an exploded perspective view of the main portion showing the rear air suction / discharge state of the wall-mounted microwave oven according to the present invention, Figure 15 is a perspective view of the main portion cutaway showing the air flow of Figure 14 in detail, Figure 16 is 17 is a side cross-sectional view of FIG. As shown, the rear air suction / exhaust action of the present invention is based on the installation direction of the blower unit 400, that is, the outlets 441 and 442 and the second suction holes 453 and 454 of the blower cases 431 and 432. ) Is installed in the blower unit seating part 270 with the direction of the back facing, and then the microwave oven is fixed to the wall surface on which the house duct 60 is formed.

At this time, the outlets 441 and 442 correspond to the rear outlets 272 and 271 of the blower unit seating portion 270 and the rear discharge duct 253 at the rear thereof, and the second inlet 453 ( 454 corresponds to the rear suction openings 274 and 273 of the blower unit seating portion 270 and the rear suction duct 254 behind them. In addition, the plate 255 is covered on the rear upper discharge ports 253a and 253b behind the rear discharge duct 253 to close the rear discharge ports 253a and 253b and to open the rear discharge ports 253c and 253d. Let's do it. The rear outlets 253c and 253d correspond to the house duct 60 formed on the wall surface.

When steam or smoke is generated by cooking of the gas stove in such a state, the user operates the duct 200 of the wall-mounted microwave oven to discharge the steam or smoke to the outside. In this case, the indoor air suction action of the present invention is similar to that described with reference to FIGS. 12 to 13, except that a part of the indoor air is also sucked into the rear suction duct 254 in communication with the left and right suction ducts 211 and 212. Then, the air is sucked into the blower cases 431 and 432 through the rear suction openings 273 and 274 and the second suction openings 453 and 454 of the blower unit seating portion 270. In addition, the air sucked in this way is discharged to the outlets 441 and 442 of the blower cases 431 and 432, and then the rear outlet 271 of the blower unit seating portion 270 corresponding to the outlets 441 and 442. 272 and the rear discharge duct 253 behind it. Thereafter, the indoor air is discharged to the outside through the rear outlets 253c and 253d and the house duct 60. Therefore, the intake / discharge amount of indoor air can be further increased.

Here, since the size of the rear discharge duct 253 of the present invention is determined according to the length of the blower unit 400 in the transverse direction, the length can be further extended, but the typical house duct 60 is of a certain size. Since it is fixed, the rear discharge duct 253 is formed to have the same length as the blower unit 400 in the vicinity of the blower unit 400, and the width thereof decreases toward the rear so as to meet the standard of the house duct 60. It is preferable to form.

On the other hand, Figure 18 is an exploded perspective view of the main portion showing the upper air suction / discharge state of the wall-mounted microwave oven according to the present invention, Figure 19 is a side cross-sectional view of FIG. As shown, the upward air intake / exhaust action of the present invention is the installation direction of the blower unit 400, that is, the outlets 441 and 442 and the second intakes 453 and 454 of the blower cases 431 and 432. ) Is installed in the blower unit seating part 270 with the direction of the back facing, and then the microwave oven is fixed to the wall surface on which the house duct 60 is formed. At this time, the outlets 441 and 442 correspond to the rear outlets 272 and 271 of the blower unit seating portion 270 and the rear discharge duct 253 at the rear thereof, and the second inlet 453 ( 454 corresponds to the rear suction openings 274 and 273 of the blower unit seating unit 270 and the rear suction duct 254 at the rear thereof, as in the above-described embodiment of FIGS. 14 to 17. However, the plate 255 is coupled to the rear discharge ports 253c and 253d behind the rear discharge duct 253 to close the rear discharge ports 253c and 253d, and open the rear upper discharge ports 253a and 253b. Let's go. At this time, it is preferable that a separate extension pipe 61 extending to the outside through the upper wall surface is connected to the rear upper outlets 253a and 253c.

When steam or smoke is generated by cooking of the gas stove in such a state, the user operates the duct 200 of the wall-mounted microwave oven to discharge the steam or smoke to the outside. At this time, the normal indoor air suction action is as described with reference to Figs. 14 to 17, except that the sucked air is discharged to the outlets 441 and 442 of the blower cases 431 and 432, and then the outlets ( 441 and 442 are guided to the rear discharge port 271 and 272 of the blower unit seating portion 270 and the rear discharge duct 253 behind it. Since the indoor air is discharged to the outside through the rear upper outlets 253a and 253b and the extension pipe 61, the indoor air can be further increased intake / discharge amount.

As described above, the wall-mounted microwave oven according to the present invention further increases the overall cross-sectional area of the suction port by further forming an additional suction port on one side of the discharge port without increasing the diameter of the blower fan and the suction port thereof, and in the transverse direction. Since the blower fan is extended in length, it does not increase the volume or height of the microwave oven and further increases the intake / discharge amount of indoor air without increasing the power consumption of the hood motor.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes are intended to fall within the scope of the claims set forth.

Claims (21)

In the wall-mounted microwave oven, A duct unit performing a ventilation function; And Wall-type microwave oven comprising a blower unit is installed in the longitudinal center portion of the upper end of the duct. The method of claim 1, wherein the duct portion And a front suction duct and a front discharge duct formed side by side up and down to face the front of the blower unit, respectively. The method of claim 2, wherein the duct portion Left and right suction ducts respectively formed in the vertical direction on the left and right sides; And And an upper guide duct extending from the upper end of the left and right suction ducts to the left and right sides of the blower unit and communicating with the front suction duct. The blower unit of claim 2, wherein the blower unit is Hood motor; Blower fans arranged on the left and right sides of the hood motor; And Each blower case surrounding the blower fan and having a first inlet formed on each outer side thereof to communicate with the inside of the blower fan, and having an outlet and a second inlet formed side by side in a circumferential direction of the blower fan. Wall-mounted microwave oven comprising a. The method of claim 4, wherein each blower fan is The wall-mounted microwave oven is eccentrically installed close to the second suction port, so that a predetermined pressure difference occurs between each of the outlet port and the second suction port inside the blower case. The blower fan of claim 4 wherein the blower fan is A wall-mounted microwave oven, characterized by having each extension having its length extended in the transverse direction. 5. The wall-mounted microwave oven according to claim 4, wherein the discharge port corresponds to the front discharge duct, and the second suction port is installed to correspond to the front suction duct. The method of claim 1, wherein the duct portion And a rear suction duct and a rear discharge duct formed side by side upward and downward to face the rear of the blower unit, respectively. The method of claim 8, wherein the duct portion Left and right suction ducts respectively formed in the vertical direction on the left and right sides; And And an upper guide duct extending from the upper end of the left and right suction ducts to the left and right sides of the blower unit and communicating with the rear suction duct. The method of claim 8, wherein the blower unit Hood motor; Blower fans arranged on the left and right sides of the hood motor; And Each blower case surrounding the blower fan and having a first inlet formed on each outer side thereof to communicate with the inside of the blower fan, and having an outlet and a second inlet formed side by side in a circumferential direction of the blower fan. Wall-mounted microwave oven comprising a. The wall-mounted microwave oven according to claim 10, wherein the outlet port corresponds to the rear discharge duct, and the second suction port is installed to correspond to the rear suction duct. The method of claim 8, wherein the rear discharge duct is An upper outlet opening upwardly; And Wall-mounted microwave oven comprising a rear outlet opening rearward. The wall-mounted microwave oven according to claim 12, further comprising a plate for selectively opening and closing the upper outlet port or the rear outlet port. The blower unit of claim 1 wherein the blower unit is Wall-mounted microwave oven characterized in that the detachable is installed with respect to the duct. The method of claim 14, wherein the duct portion And a blower unit seating portion for accommodating the blower unit in a longitudinal center portion of the upper end thereof. In the wall-mounted microwave oven, Hood motor is installed in the longitudinal center portion of the top; Blower fans arranged on the left and right sides of the hood motor; Each blower case surrounding the blower fan and having a first inlet formed on each outer side thereof to communicate with the inside of the blower fan, and having an outlet and a second inlet formed side by side in a circumferential direction of the blower fan. ; A front discharge duct formed to face forward and corresponding to the outlet; A front suction duct formed to face forward under the front discharge duct and corresponding to the second suction hole; Left and right suction ducts respectively formed in the vertical direction on the left and right sides; And And a respective upper guide duct extending from the upper end of the left and right suction ducts to the first suction port and communicating with the front suction duct. In the wall-mounted microwave oven, Hood motor is installed in the longitudinal center portion of the top; Blower fans arranged on the left and right sides of the hood motor; Each blower case surrounding the blower fan and having a first inlet formed on each outer side thereof to communicate with the inside of the blower fan, and having an outlet and a second inlet formed side by side in a circumferential direction of the blower fan. ; A rear exhaust duct formed to face rear and corresponding to the outlet; A rear suction duct formed to face rearward below the rear discharge duct and corresponding to the second suction hole; Left and right suction ducts respectively formed in the vertical direction on the left and right sides; And And an upper guide duct extending from the upper end of the left and right suction ducts to the first suction port and communicating with the rear suction duct. In the wall-mounted microwave oven, Hood motor is installed in the longitudinal center portion of the top; Blower fans arranged on the left and right sides of the hood motor; Each blower case surrounding the blower fan and having a first inlet formed on each outer side thereof to communicate with the inside of the blower fan, and having an outlet and a second inlet formed side by side in a circumferential direction of the blower fan. ; A rear discharge duct formed so as to face rearward and having an upper discharge opening having one end corresponding to the discharge opening and an upper discharge opening opened at the other end thereof, and a rear discharge opening opened rearward; A plate for selectively opening and closing the upper outlet or the rear outlet; A rear suction duct formed to face rearward below the rear discharge duct and corresponding to the second suction hole; Left and right suction ducts respectively formed in the vertical direction on the left and right sides; And And an upper guide duct extending from the upper end of the left and right suction ducts to the first suction port and communicating with the rear suction duct. Hood motor; Blower fans arranged on the left and right sides of the hood motor; And Each blower case surrounding the blower fan and having a first inlet formed on each outer side thereof to communicate with the inside of the blower fan, and having an outlet and a second inlet formed side by side in one circumferential direction of the blower fan. Blower unit of the wall-mounted microwave oven comprising a. 20. The apparatus of claim 19, wherein each blower fan is The blower unit of the wall-mounted microwave oven is eccentrically installed toward the second suction port so that a predetermined pressure difference occurs between each of the outlet port and the second suction port inside the blower case. The blower fan of claim 20 wherein the blower fan is A blower unit for a wall-mounted microwave oven, characterized by having each extension part whose length is extended in the transverse direction.