KR100504510B1 - microwave oven with a function of hood - Google Patents

Abstract

The present invention relates to a microwave oven with a hood, and in particular, to provide a structure that enables a smooth heat dissipation of a space equipped with a fan motor for convection heat inside the cooking chamber.

To this end, the present invention forms the appearance and has an electric compartment in one side space therein, the rear side upper portion and the main body is provided with a centrifugal fan and an exhaust motor for driving the intake and discharge of air; An oven cavity having one side communicating with the interior space of the electric compartment and being provided in the other space in the main body to form a cooking chamber, and the other side communicating with the internal space of the main body; A convection fan and a fan motor provided between the other side surface of the oven cavity and the inner wall surface of the main body to drive the heat inside the cooking chamber through the first communication hole; And separating the space provided with the convection fan and the fan motor from the space on the rear side in the main body through which the outside air flows, and the predetermined portion having a second communication hole for communicating the respective spaces. A microwave with hood is provided.

Description

Microwave oven with microwave {microwave oven with a function of hood}

The present invention relates to a microwave oven, and more particularly to an air flow system of a microwave oven with a hood.

In general, a hood-use microwave oven is installed at the top of a gas stove or a gas oven to perform a function of a microwave oven and exhaust function such as heat, smoke or odor generated from the gas range or gas oven. to be.

1 to 3 show the internal structure of the above-mentioned hood microwave oven.

In other words, the conventional microwave oven is equipped with a main body 10 that forms a large appearance, an oven cavity 20 provided inside the main body 10 to form a cooking chamber, and a centrifugal fan 31 for exhausting. And an exhaust motor 30, an electric chamber equipped with a magnetron 41 for generating microwaves and a high voltage transformer 42.

Here, the first suction port 11 and the second suction hole 12 are formed on both sides of the bottom surface of the main body 10, and the air is sucked into the bottom space inside the main body 10, respectively. An exhaust port 13 through which the air passing through the centrifugal fan 31 is exhausted is formed at the rear side (or upper rear side).

In addition, the air sucked through the first suction port 11 formed on the bottom side of the battlefield is located in the rear space on one side where the battlefield in the main body 10 is located in the state in which the compartment is separated from the space of the battlefield; A first compartment plate 61 is installed to guide the centrifugal fan 31 to flow toward the space where the centrifugal fan 31 is located.

At the same time, the air sucked through the second suction port 12 is spaced apart from the side space of the oven cavity 20 toward the space where the centrifugal fan 31 is located on the other space in the main body 10. The second partition plate 62 is installed to guide the flow.

And, the oven cavity 20 is mounted on one side space in the main body 10, the upper surface and the bottom surface is formed to extend to the other side space in the main body 10 forming an electric battle chamber.

In addition, the exhaust motor 30 is mounted at the rear upper edge portion of the main body 10, and the air sucked through each of the inlets 11 and 12 of the main body 10 to the outside of the main body 10. It serves to drive the centrifugal fan 31 to exhaust.

In addition, the magnetron 41 and the high voltage transformer 42 are mounted in the electric compartment, respectively.

In addition, a rotation motor 50 for rotating the turntable 21 inside the oven cavity 20 is provided in the space between the bottom portion of the bottom surface of the oven cavity 20 and the bottom surface of the main body 10.

Hereinafter, a description will be given of the operation state of the above-mentioned conventional microwave oven.

First, if the microwave oven is operated to serve as a hood, the centrifugal fan 31 is driven while the exhaust motor 30 is operated, which causes the main body 10 to pass through the pair of inlets 11 and 12. Air is sucked in from the bottom.

At this time, the air sucked into the main body 10 through the first suction port 11 formed at the bottom of the electric chamber among the suction ports 11 and 12 is guided by the first partition plate 61. It is discharged to the outside of the main body 10 through the exhaust port 13 via the centrifugal fan 31 while flowing along the space inside the electric chamber rear side in the 10.

In addition, the air sucked into the main body 10 through the second suction port 12 moves the other side space in the main body 10 opposite to the position where the electric chamber is formed and moves the centrifugal fan 31. Through the exhaust port 13 is discharged to the outside of the main body 10.

At this time, the air flowing through the second suction port 12 and flowing inside the main body 10 flows under the guidance of the second separation plate 62.

If the combined microwave oven is used for food cooking, the same operation as the conventional microwave oven is performed, and a detailed description thereof will be omitted.

On the other hand, in recent years, the heater 50 is built in the upper side of the oven cavity 20 in order to improve the cooking performance of the above-described microwave oven.

In addition, a communication hole 22 communicating with the internal space of the main body is formed on one side surface (the side opposite to the side where the electric chamber is located) of the oven cavity 20 and the communication hole 22 is formed. The fan motor 52 which has the convection fan 51 is attached to it.

That is, the surface of the food is cooked using the heater 50 together with the cooking of the food using microwaves, thereby improving the user's satisfaction due to the uniform cooking of the food.

At this time, the convection fan 51 serves to convection the heat radiated by the heater 50 to be evenly radiated to the inside of the oven cavity 20, that is, all parts inside the cooking chamber.

However, in the above-mentioned conventional microwave oven with a hood, the fan motor 52 which rotates the convection fan 51 generates a lot of heat when it is driven, and the high temperature heat inside the cooking chamber causes the convection fan 51 to move. As the fan motor 52 is heated to pass through, there is a problem in that the performance of the fan motor 52 is reduced.

In particular, the space in which the convection fan 51 and the fan motor 52 are mounted is not only blocked from the outside but also a separate air flow structure for cooling the fan motor 52 is not formed. The performance degradation of (52) can only be caused more greatly.

The present invention has been made in order to solve the above-mentioned problems of the prior art by providing a structure that enables a smooth heat dissipation of the space in which the fan motor is mounted to prevent damage caused by overheating of the fan motor in advance. .

According to an aspect of the present invention for achieving the above object, the main body is provided with a centrifugal fan and an exhaust motor for driving an intake and discharge of air in the upper part of the rear side, having an electric compartment in one space therein. Wow; An oven cavity having one side communicating with the interior space of the electric compartment and being provided in the other space in the main body to form a cooking chamber, and the other side communicating with the internal space of the main body; A convection fan and a fan motor provided between the other side surface of the oven cavity and the inner wall surface of the main body to drive the heat inside the cooking chamber through the first communication hole; And separating the space provided with the convection fan and the fan motor from the space on the rear side in the main body through which the outside air flows, and the predetermined portion having a second communication hole for communicating the respective spaces. A microwave with hood is provided.

Hereinafter, referring to FIG. 4 and FIG. 5, the hood-use microwave oven according to the embodiment of the present invention will be described in detail.

First, the hood-use microwave oven according to the embodiment of the present invention includes a main body 100, an oven cavity 200, a convection fan 51 and a fan motor 52, and a partition plate 600.

Here, the main body 100 forms the exterior of the microwave oven with a hood, and has a full length chamber in one side space therein, and a centrifugal fan 31 driven for intake and discharge of air in the upper rear side thereof. An exhaust motor 30 is provided.

In addition, the oven cavity 200 is provided on the side space of the other space inside the main body 10, that is, the space where the electrical equipment room is located to form a cooking chamber.

A plurality of air inlet holes 210 through which air is introduced from an inner space of the battlefield chamber are formed on one side of the oven cavity 200 in which the battlefield chamber is located.

In addition, a first communication hole 220 is formed in the central portion of the other side of the oven cavity 200 so as to communicate with a space inside the main body 100.

In addition, the convection fan 51 and the fan motor 52 are provided between the surface on which the first communication hole 220 of the oven cavity 200 is formed and the inner wall surface of the main body 100 to provide the first communication hole ( Convection is performed through 220 to provide uniform heat to the food.

At this time, the upper surface of the oven cavity 200 is extended to the side in the main body 100 to partition the space provided with the convection fan 51 and the fan motor 52 from the upper space of the main body 100. It has an extension 230 formed.

In addition, the partition plate 600 separates the space provided with the convection fan 51 and the fan motor 52 from the space on the rear side in the main body 100 through which external air flows. A plurality of second communication holes 610 communicating with the space are formed.

Guide pieces 620 are formed in the second communication holes 610 of the partition plate 600, respectively.

In this case, each of the guide pieces 620 is formed by a lancing process, each second communication hole 610 is formed in the process of forming each of the guide pieces 620 by the lancing process.

In particular, the guide pieces 620 are formed to be inclined toward substantially the same direction as the flow direction of air flowing through the rear side space in the main body 100.

That is, considering that the flow of air is made from the bottom of the main body 100 toward the upper rear side of the main body 100, the guide pieces 620 are also formed to be inclined toward the upper rear side of the main body 100.

This prevents the air flowing toward the upper rear side of the main body 100 from being introduced into the space provided with the convection fan 51 and the fan motor 52 through the second communication hole 610. And to prevent the fan motor 52 from being contaminated by impurities mixed in the flowing air.

In addition, in the embodiment of the present invention, each second communication hole of the partition plate 600 to prevent the inflow of the contaminated air into the space provided with the convection fan 51 and the fan motor 52 ( 610 is formed to be formed to be inwardly inclined toward the space provided with the convection fan 51 and the fan motor 52.

This is to prevent the inflow of the air by maximally spaced apart from the portion of each of the second communication hole 610 is formed from the flow of air rising along the rear space in the main body 100.

As described above, a series of configurations allows the heat inside the space provided with the fan motor 52 to be smoothly discharged to the outside of the space, but the contaminated air introduced into the main body 100 by the hood function is It cannot be introduced into the space.

In addition, the present invention, the upper space of the main body 100 and the convection fan 51 and the extension 230 of the oven cavity 200 in order to more effectively radiate the convection fan 51 and the fan motor 52 It is proposed to further form a third communication hole 231 communicating the space provided with the fan motor 52 with each other.

At this time, the fourth communication hole 101 is formed on the front surface of the upper side of the main body 100 adjacent to the portion where the third communication hole 231 is formed so that external air can be introduced.

The third communication hole 231 and the fourth communication hole 101 are configured such that air outside the main body 100 is not contaminated into the space provided with the convection fan 51 and the fan motor 52. By doing so, it is possible to improve the heat radiation effect of the fan motor 52 by the air.

Hereinafter, the cooking process of the cooking by the configuration according to the embodiment of the present invention described above in more detail.

In this case, only the same structure and the same name as before will be used.

First, when cooking is performed in the oven cavity 200, that is, in a state in which food is put into the cooking chamber, microwaves are generated from the magnetron 41 and provided into the cooking chamber.

Therefore, the food inside the cooking chamber is cooked while responding to the microwaves.

In this case, the air flowing through the electric chamber in the main body 100 passes through the air inlet hole 210 of the oven cavity 200 and enters the cooking chamber that is inside the oven cavity 200.

In addition, the air is uniformly provided to all parts of the food by the operation of the convection fan 51 in a heated state by the heat of the heater.

In addition, while the above-described cooking process is performed, suction of external air is carried out through each of the air inlets 11 and 12 formed on the bottom of the main body 100 while the centrifugal fan 31 is rotated by the driving of the exhaust motor 32. Is done.

At this time, the sucked air is raised along the side rear space inside the main body 100 while being guided by the partition plate 600, and is then exhausted to the outside of the main body 100 through the exhaust port 13.

In this process, the two spaces partitioned by the partition plate 600, that is, the side rear space inside the main body 100 where the air flow is made, are inside the main body 100 provided with the fan motor 52. The side anterior space of the side and air pressure difference occurs.

Therefore, the air in the space provided with the fan motor 52 passes through the second communication hole 220 formed in the partition plate 600 to the air flowing in the side rear side space in the main body 100. Piggybacked.

Therefore, since the heat radiation of the space provided with the fan motor 52 can be made, damage due to overheating of the fan motor 52 is prevented.

In particular, the air outside the main body is introduced into the main body 100 through the fourth communication hole 101 formed in the upper front side of the main body 100 during the above-described series of processes, the introduced air Subsequently, the fan motor 52 is introduced into the space provided with the third communication hole 231.

Therefore, cooling of the space provided with the fan motor 52 is achieved due to the inflow of the outside air, and thus, more smooth heat dissipation of the fan motor 52 can be achieved.

As described above, the hood-use microwave oven of the present invention changes the structure to allow the air discharge and the inflow of outside air in the space provided with the convection fan and the fan motor, so that the heat dissipation of the space can be made smoothly. Has the effect of preventing the damage caused by overheating.

1 is a schematic cross-sectional view of the internal structure of a conventional microwave oven with a hood;

2 is a cross-sectional view taken along line II of FIG. 1.

3 is a cross-sectional view taken along the line II-II of FIG.

4 is a schematic cross-sectional view of an internal structure of a hood-use microwave oven according to the present invention;

5 is a cross-sectional view taken along the line III-III of FIG.

Explanation of symbols for the main parts of the drawings

100. Main body 101. Fourth communication hole

200. Oven cavity 220. First communication hole

230. Extension 231. Third communication hole

600. Partition plate 610. Second communication hole

620. Guide

Claims (7)

A main body having an electric compartment in one space therein while forming an exterior, and having a centrifugal fan and an exhaust motor driven at an upper portion of the rear side thereof for intake and discharge of air; An oven cavity having one side communicating with the interior space of the electric compartment and being provided in the other space in the main body to form a cooking chamber, and the other side communicating with the internal space of the main body; A convection fan and a fan motor provided between the other side surface of the oven cavity and the inner wall surface of the main body to drive the heat inside the cooking chamber through the first communication hole; And, Separating the space provided with the convection fan and the fan motor from the rear space in the body in which the flow of external air is made, the predetermined portion includes a partition plate formed with a second communication hole communicating each space: Microwave. The method of claim 1, And a guide piece is formed in each of the second communication holes of the partition plate so that air flowing to the rear space in the main body does not flow from the space provided with the convection fan and the fan motor. The method of claim 2, And each guide piece is formed together with a second communication hole by lancing the partition plate. The method of claim 2, And the guide piece is inclined toward a direction substantially the same as the flow direction of air flowing through the rear space in the main body. The method of claim 1, The portion of the partition plate formed with the second communication hole is a hood combined microwave, characterized in that the concave inwards toward the space provided with the convection fan and the fan motor. The method of claim 1, The upper surface of the oven cavity is formed long to the side of the main body so as to partition the space provided with the convection fan and the fan motor with the upper space of the main body, the arbitrary portion of the upper space of the main body and the convection fan and A microwave oven with a hood, characterized in that the third communication hole is formed so that the space provided with the fan motor is in communication. The method of claim 6, The microwave oven for a hood, characterized in that the fourth communication hole for the suction of the outside air is formed on the front surface of the upper side of the main body adjacent to the portion where the third communication hole is formed.