KR20050030671A - Convection type microwave oven - Google Patents

Abstract

A convection-type microwave oven is provided to minimize an over-all length and to enable supply of heat of higher temperature than a cooking chamber. A convection-type microwave oven comprises a body including an outer case(120) constituting the top and sides; a rear plate(130) having plural communicating holes(201); and a front plate constituting the front; a convection chamber having a predetermined space while covering a part of the rear plate where the communicating holes are formed; a chamber motor(350) and a convection fan fixed to parts where air suction holes are formed; and a convection heater(320) arranged to the sides of the chamber motor.

Description

Convection type microwave oven

The present invention relates to a convection type microwave oven, and more particularly, to a structure of a convection type microwave oven from which a chamber cover is removed.

In general, a microwave oven (MWO) is a device for cooking food by the heat of intermolecular friction generated by disturbing the molecular arrangement of food by using a high frequency (about 2,450 MHz per second) as a heating source.

Such a microwave oven may be classified into a general microwave oven for cooking using a simple high frequency and a convection type microwave oven for cooking using the high frequency and high temperature heat.

1 and 2, the convection type microwave oven is shown. As can be seen from the above, the conventional convection type microwave oven includes a front plate 11, an out case 12, and a rear plate 13. The main body 10, the cavity 20 which forms a cooking chamber, and the electrical equipment chamber in which various electrical components are provided are comprised.

Here, the front plate 11 forms a front surface of the main body 10 with its front surface mounted with a cavity door 14 for opening and closing the inside of the cavity 20.

In addition, the outer case 12 forms both sides and the upper surface of the main body 10 to protect the cavity 20 and the electric compartment together with the front plate 11 and the rear plate 13 from an external environment.

In addition, a plurality of communication holes 13a are formed in the central portion of the rear plate 13 so as to communicate with the internal space of the cavity 20, and the rear plate 13 is disposed between the rear plate 13 and the rear plate 13. A convection chamber 31 having any space is provided.

In this case, a convection heater 32 and a temperature sensor 33 are provided inside the space of the convection chamber 31, and an inner surface of the convection chamber 31 is generated from the convection heater 32. A convection fan 34 for convection hot air into the cavity 20 is mounted, and a rear end of the convection chamber 31 is provided with a chamber motor 35 for driving the convection fan 34. It is mounted in an axially coupled state.

In addition, behind the convection chamber 31, a chamber cover 37 that protects the convection chamber 31 and the chamber motor 35 from an external environment is provided with the convection chamber 31 and the chamber motor 35. It is fixed to the rear plate 13 while wrapping.

At this time, a plurality of air intake holes 37a are formed at the rear surface of the chamber cover 37 for inflow of air from the outside.

The electric chamber is a magnetron 41 for generating microwaves, a high voltage transformer 42 for supplying a high voltage to the magnetron 41, and a blowing fan for cooling various electric components inside the body 10. Various components including a 43 and a fan motor 44 for driving the blower fan 43 are mounted.

At this time, the fan motor 44 is fixedly mounted on one side of the inner side of the rear plate 13, the shroud is mounted around the blowing fan 43 to guide the flow of air.

However, the conventional convection type microwave oven configured as described above has a large front and rear length due to the thickness of the convection chamber 31 and the chamber cover 37 installed at the rear side thereof, so that it is not only inconvenient to install, but also a lot of installation space. There is a problem that it is necessary.

In particular, in the case of export products, there is a problem that the burden of transportation costs is inevitably increased because the quantity of the container is reduced.

In addition, since there are many configurations for high temperature heat generation and convection, the overall manufacturing cost is expensive, and there is a problem that there are many processes for assembly.

The present invention has been made to solve the conventional problems as described above, to provide a convection-type microwave oven to minimize the overall front and rear electric field and to supply higher heat to the cooking chamber inside the cavity. Its purpose is to.

According to an aspect of the present invention for achieving the above object, a main body including an upper case and an outer case forming both sides, a rear plate formed with a plurality of communication holes and a front plate forming the front; A convection chamber formed to have a predetermined space therein while surrounding a portion where the communication hole of the rear plate is formed, and a plurality of air suction holes penetrate through the rear plate and fixed to the rear plate; A chamber motor and a convection fan fixedly mounted to a portion where the air suction holes are formed in the convection chamber; And, a convection type microwave oven, characterized in that it comprises a convection heater: mounted on the circumferential side portion of the chamber motor that is on the inner space of the convection chamber.

Hereinafter, an embodiment of a convection type microwave oven according to an embodiment of the present invention will be described in detail with reference to FIGS. 3 and 4.

First, as shown in FIGS. 3 and 4, the convection type microwave oven according to the exemplary embodiment of the present invention has a main body 100, a cavity 200, a convection chamber 310, a chamber motor 350 and a convection. The fan 340 and the convection heater 320 are included.

The main body 100 forms an exterior, and includes a front plate 110 forming a front surface, an out case 120 forming both sides and an upper surface, and a rear plate 130 forming a rear surface.

In this case, a plurality of communication holes 131 are formed on the surface of the rear plate 130 to communicate with the cooking chamber, which is an inner space of the cavity 200. Of course, the back surface of the cavity 200 also has a plurality of communication holes 201 is formed.

In addition, the convection chamber 310 is bent to surround a portion where the communication hole 131 of the rear plate 130 is formed so as to have a predetermined space therein, and to surround the rear surface of the rear plate 130. Accordingly, the front circumference of the convection chamber 310 is formed to be tightly fixed.

At this time, a plurality of first air suction holes 311 for penetrating the outside air are formed through the circumferential surface of the convection chamber 310.

In addition, the chamber motor 350 and the convection fan 340 are positioned on an interior space of the convection chamber 310.

The chamber motor 350 and the convection fan 340 are operated to supply high temperature heat to the inside of the cooking chamber through each communication hole 131 of the rear plate 130.

Here, the chamber motor 350 may be fixedly mounted directly on the inner surface of the convection chamber 310, but preferably, the chamber motor 350 is mounted by a separate motor guide 351, and the motor guide in the present invention. It is proposed that the chamber motor 350 can be fixed by 351.

In this case, the motor guide 351 may be mounted on the inner surface of the convection chamber 310 or may be mounted on the rear surface of the rear plate 130.

In addition, the chamber motor 350 should be configured to smoothly discharge the heat discharged according to the driving.

In particular, since the heat is generated in a state in which the convection heater 320 is provided in the space inside the convection chamber 310 in which the chamber motor 350 is installed, damage to the chamber motor 350 may occur due to a high temperature. Considering that, a smooth heat dissipation structure is required.

Of course, a convection fan 340 is provided inside the convection chamber 310, and the convection fan 340 passes air introduced into the convection chamber 310 by passing through the chamber motor 350. Since it is operated to discharge the inside of the cooking chamber together with the heat generated from the 320, the heat radiation of the chamber motor 350 may be reduced to some extent.

However, in the embodiment of the present invention, in order to further improve the heat dissipation efficiency of the chamber motor 350, the second air suction for inflow of external air is provided on the rear surface of the convection chamber 310, which is the rear side of the chamber motor 350. It is proposed to further form the ball 312.

In addition, in the embodiment of the present invention, the chamber motor 350 is configured as a biaxial motor, and further includes a structure further comprising an anti-fan 360 on the rear side shaft of the chamber motor 350. present.

At this time, the anti-fan 360 is a fan configured to forcibly blow outside air to the chamber motor 350.

Accordingly, even though the chamber motor 350 is heated due to its driving and heat generated by the heat generated by the convection heater 320, the chamber motor 350 may transmit the convection fan 340 located in the same space as the chamber motor 350. Since the heat of the chamber motor 350 is provided to the inside of the cooking chamber together with the heat of the convection heater 320 by the wind, it is possible to provide higher heat into the cooking chamber.

Of course, since the heat dissipation is performed by the operation of the anti-fan 360 axially coupled to the rear side of the chamber motor 350, damage due to overheating can be prevented as much as possible.

As a result, the configuration according to the embodiment of the present invention described above does not need to separately configure the existing chamber cover, and it is possible to reduce the overall length of the microwave oven.

As described above, the convection type microwave oven according to the present invention has the following effects.

First, since the convection type microwave oven according to the present invention does not need to have a separate chamber cover, the manufacturing cost for the provision of the chamber cover can be reduced, and the process for assembling the chamber cover can be shortened. Can have the effect.

Second, the convection type microwave oven according to the present invention has an effect that can be reduced the overall length of the electric field because there is no separate chamber cover.

Set, the convection type microwave oven according to the present invention has an effect that can prevent damage due to overheating by making the heat dissipation of the chamber motor smoothly even if the electric field is reduced.

1 is an exploded perspective view showing a general structure of a conventional convection microwave oven

Figure 2 is a side cross-sectional view schematically showing the internal structure of a conventional convection microwave oven

3 is an exploded perspective view showing a convection type microwave oven according to an embodiment of the present invention.

4 is a side cross-sectional view schematically showing the internal structure of a convection type microwave oven according to an embodiment of the present invention.

Explanation of symbols for the main parts of the drawings

130.Rear plate 131.Communication holes

200. Cavity 201.Communicator

310. Convection chamber 311. First air suction hole

312.Second air suction hole 320.Convection heater

340. Convection Fan 350. Chamber Motor

360.Anti Pan

Claims (5)

A main body including an upper case and an outer case forming both sides, a rear plate on which a plurality of communication holes are formed, and a front plate forming a front surface; A convection chamber formed to have a predetermined space therein while surrounding a portion where the communication hole of the rear plate is formed, and a plurality of first air suction holes are formed through the circumferential surface thereof and fixed to the rear plate; A chamber motor and a convection fan fixedly mounted to a portion where the air suction holes are formed in the convection chamber; And, And a convection heater provided on the side of the chamber motor which is on the inner space of the convection chamber. The method of claim 1, The chamber motor is configured as a biaxial motor, the convection fan is mounted on the front side shaft, the rear side shaft is a convection type microwave oven, characterized in that the anti-fan is further provided to radiate the chamber motor. The method of claim 1, A convection type microwave oven, characterized in that a plurality of air inlet hole is further formed on at least one circumferential surface of the convection chamber. The method of claim 1, The convection motor is a convection type microwave oven, characterized in that mounted on the interior space of the convection chamber by a separate motor guide. The method of claim 4, wherein The motor guide is a convection type microwave oven, characterized in that fixed to at least one portion of the inner surface or the rear plate of the convection chamber.