KR20060119448A - Convection type microwave oven - Google Patents

Abstract

A convection type microwave oven is provided to cook food evenly by simultaneously performing the grill function and the convection function, and to decrease the entire length by forming a grill unit in an upper part of a cavity and forming a convection unit in an electric component chamber. A convection type microwave oven includes a body(100) having an outer case, a rear plate and a front plate, a cavity(200) formed in the body to form a cooking chamber, a heater chamber(320) communicated with an upper part of the cavity and provided with a grille heater(310) supplying radiant heat, an electric component chamber formed in the body and provided with a high voltage transformer, a magnetron, a blower fan and a fan motor, and a convection unit(400) formed in the electric component chamber to circulate, reheat and supply air from the cooking chamber to the cavity. The convection unit has a convection chamber(410) communicated with the side of the cavity and provided with a suction part sucking air from the cooking chamber and an exhaust part supplying air to the cavity, a convection fan(440) sucking air from the cavity, a convection motor(450) driving the convection fan, and a convection heater(420) formed in the convection chamber to provide convection heat.

Description

Convection type microwave oven

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 a front view schematically showing the internal structure of a convection type microwave oven according to an embodiment of the present invention;

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

Figure 5 is a perspective view showing the internal structure of the convection portion according to an embodiment of the present invention

6 is a schematic view showing an air suction hole and an air discharge hole according to an embodiment of the present invention;

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

100: main body 200: cavity

300: grill unit 310: grill heater

320: heater chamber 400: convection unit

410: convection chamber 411: suction space portion

412: exhaust space portion 420: convection heater

440: convection fan 450: convection motor

470: Euroguide

The present invention relates to a convection type microwave oven, and more particularly, to a new type of convection type microwave oven capable of simultaneously performing a grill function and a convection function, while minimizing a mounting space.

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

Such a convection type microwave oven may be classified into a general convection type 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 show a conventional convection type microwave oven, and as can be seen from the conventional convection type microwave oven, the front plate 11 and the out case 12 and the rear plate 13 It comprises a main body 10 including, the cavity 20 which forms a cooking chamber, and the electrical equipment chamber in which various electrical components are installed.

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 (not shown) are formed in a substantially central portion of the rear plate 13 so as to communicate with the internal space of the cavity 20, and the rear plate 13 at the rear of the rear plate 13. A convection chamber 31 having an arbitrary space therebetween is provided.

At this time, a convection heater 32 and a temperature sensor (not shown) are provided inside the space of the convection chamber 31, and the convection heater 32 is provided on the inner side of the convection chamber 31. A convection fan 34 is mounted to convection the heat generated from the cavity 20, and a convection motor 35 for driving the convection fan 34 is provided at the rear of the convection chamber 31. It is mounted in axial engagement with the (34).

Further, behind the convection chamber 31, a chamber cover 37 that protects the convection chamber 31 and the convection motor 35 from an external environment is provided with the convection chamber 31 and the convection 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.

In addition, the electric compartment is a magnetron 41 for generating microwaves, a high voltage transformer 42 for supplying a high voltage to the magnetron 41, and a blower for cooling various electric components inside the main body 10. Various components including a fan 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 the inner surface of one side of the rear plate 13, the shroud 45 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 the following problems.

First, due to the thickness of the convection chamber 31 and the chamber cover 37 installed on the rear side of the convection type microwave oven, the overall length of the front and rear is large, and there is a problem in that many installation spaces are required, as well as inconvenience in installation.

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.

Second, since there are many configurations for high temperature heat generation and convection, not only the overall manufacturing cost is expensive, but also many assembly processes are required.

Third, the conventional convection type microwave oven performs cooking on the food in the cooking chamber on the basis of the convection principle, but does not perform surface heating of the food using radiant heat.

Because of this, there is also a problem that could not achieve a variety of cooking.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is to enable a variety of cooking for the cooking as well as to enable uniform cooking, heating the surface of the food using radiant heat Another object of the present invention is to provide a new type of convection type microwave oven which can be performed simultaneously or selectively as needed.

Another object of the present invention is to provide a convection-type microwave oven capable of reducing the front and rear length of the product as much as possible by changing the position of the convection chamber.

In order to achieve the above object, the present invention includes a main body including an out case, a rear plate and a front plate; A cavity provided at one side of the main body to form a cooking chamber; A heater chamber provided on an upper surface of the cavity and provided with at least one grill heater for providing radiant heat on an inner space; It is provided on the other side space in the main body, the front side of the space is provided with a variety of electrical components such as high voltage transformer and magnetron, the rear side of the space having a blower fan and a fan motor; A convection type microwave oven including: a convection unit provided in the electrical equipment room for circulating air in the cooking chamber of the cavity and reheating and resupplying it into the cavity.

The convection unit is provided so that one surface is in communication with the side of the cavity, one side has a suction space for sucking the air in the cooking chamber, the other side has a convection chamber having an exhaust space for supplying air back into the cavity, the convection chamber And a convection fan provided to suck air in the cavity, a convection motor for driving the convection fan, and a convection heater provided in the convection chamber to provide convective heat.

The convection fan is provided in the suction space portion, and the convection heater is provided in the suction space portion.

As the convection fan, a centrifugal fan that sucks air in the axial direction and discharges it in a radial direction is used, and the convection heater is preferably a circular sheath heater.

It is preferable that a plurality of air suction holes are formed at the front side of the air suction part among the portions where the convection chamber and the cavity are in communication, and a plurality of air discharge holes are formed at the front side where the air exhaust part is formed.

The convection part may further include a flow path guide provided on the exhaust space part side to reduce flow path resistance of the air flowing to the exhaust space part and guide the direction of the air into the cooking chamber.

On the other hand, the convection motor is coupled to be exposed to the outside of the convection chamber, the shaft is coupled to the convection fan through the convection chamber.

The grill heater may be any one of a quartz tube heater, sheath heater, and miracron heater.

Therefore, according to the present invention, a convection part serving as a convection function can be provided inside the electrical equipment room, and the width of the main body can be reduced.

Hereinafter, a preferred embodiment according to the convection type microwave oven of the present invention will be described in detail with reference to FIGS. 3 to 7.

3 is a front view schematically showing the internal structure of the convection type microwave oven according to an embodiment of the present invention, Figure 4 is a side view schematically showing the internal structure of a convection type microwave oven according to an embodiment of the present invention.

Next, Figure 5 is a perspective view showing the internal structure of the convection portion according to an embodiment of the present invention, Figure 6 is a schematic diagram showing an air suction hole and an air discharge hole according to an embodiment of the present invention.

First, as shown in FIGS. 3 and 4, the convection type microwave oven according to an exemplary embodiment of the present invention includes a main body 100, a cavity 200, a grill part 300, and a convection part 400. It is configured by.

Here, the main body 100 includes a front plate 110 and a rear plate 130, the one side space is formed in the electric compartment.

At this time, an outer case (see FIG. 1) forming both side surfaces and an upper surface is coupled to the outside of the main body 100.

In addition, various electrical components such as a high voltage transformer 42 and a magnetron 41 are provided in the electrical compartment of the main body 100.

The cavity 200 is provided on the other side space of the main body 100 to form a cooking chamber.

In particular, the rear edge portion of the cavity 200 is preferably rounded.

This is because, considering the convection type microwave oven of the present invention also performs a grill function, a large amount of debris is generated from food during the grill function.

That is, only when the corner portion of the cavity 200 is formed to be round, smooth cleaning is possible, thereby improving the reliability of the user.

In addition, by eliminating the corner portion of the cavity 200, the microwave can be uniformly radiated to all the inside of the cooking chamber, and the heat flowing in the cooking chamber can be smoothly flowed along the rounded surface to uniform cooking. The heating of the water can be made.

Of course, all of the rear side of the cavity 200 may be formed in a circular shape.

The grill unit 300 includes at least one grill heater 310 and a heater chamber 320.

At this time, the grill heater 310 provides radiant heat by the heat generated, and is any one of a quartz tube heater, sheath heater, and miracron heater. The embodiment is a tube heater.

In addition, the heater chamber 320 is formed to serve to block the grill heater 310 from the external environment.

In particular, the inner wall surface of the heater chamber 320 is more preferably formed to be capable of reflecting light so as to serve as a reflector.

In addition, the convection unit 400 according to an embodiment of the present invention is provided inside the electric compartment to circulate air in the cooking chamber of the cavity 200 and reheats it to resupply into the cavity 200. .

The convection unit 400 includes a convection chamber 410, a convection heater 420, a convection fan 440, and a convection motor 450.

As shown in FIGS. 3 and 5, the convection chamber 410 is provided such that one surface is in communication with the side surface of the cavity 200, and one side has a suction space part 411 that sucks air in the cooking chamber. On the other side, it has an exhaust space portion 412 for resupply air into the cavity 200.

In this case, as shown in FIG. 6, a plurality of air suction holes 400a are formed at the front side of the air suction part among the portions where the convection chamber 410 and the cavity 200 communicate with each other, and the exhaust space part 412. It is preferable that a plurality of air discharge holes (400b) is formed on the front side is formed.

In addition, the convection heater 420 is provided in the suction space 411 of the convection chamber 410, and reheats the air sucked into the suction space 411 by the heat generated to convection heat into the cooking chamber. to provide.

At this time, the convection heater 420 may be configured as a circular sheath heater formed in two stages to improve the performance of the heater.

In addition, the convection fan 440 is provided in the suction space 411 of the convection chamber 410, and sucks air in the cooking chamber through a plurality of air suction holes 400a formed in the cavity 200. Then, the suctioned and heated by the convection heater 420 flows to the exhaust space 412 is driven to force convection into the cooking chamber through the air discharge hole (400b).

At this time, the convection fan 440 is preferably a centrifugal fan that sucks air in the axial direction and discharges in the radial direction.

In addition, the convection motor 450 serves to drive the convection fan 440.

At this time, the convection motor 450 is coupled to be exposed to the outside of the convection chamber 410, the axis is preferably configured to be coupled to the convection fan 440 through the convection chamber 410.

On the other hand, the convection part 400 is provided on the exhaust space portion 412 side of the convection chamber 410 to reduce the flow path resistance of the heat flowing to the exhaust space portion 412 and the direction of the heat into the cooking chamber inside Guiding flow path guide 470 is further included.

Hereinafter, an operation process according to an embodiment of the present invention having the above-described series of structures will be described.

First, in the state where the object to be cooked is put into the cooking chamber, the user makes a selection for driving.

In this case, the selection for the operation may be cooking with a general microwave, cooking using a grill function, cooking using a convection function, and the like. Of course, there may be an operation in which cooking using two or more functions is performed at the same time.

In addition, if the user selects cooking using the grill function in the above-described series, power is supplied to the grill heater 310 constituting the grill unit 300 in a state in which the operations of the convection unit 400 are all stopped.

Of course, at this time, while the operation of the magnetron 41 is made at the same time, the food may be cooked by the radiant heat of the microwave and the grill heater 310 at the same time.

If the user selects the cooking using the convection function, power is supplied to the grill heater 310 and at the same time, power is supplied to the convection heater 420 and the convection motor 450 constituting the convection unit 400.

In this case, inside the heater chamber 320, high-temperature radiant heat is generated due to the heat generated by the grill heater 310, and the generated radiant heat is discharged into the cooking chamber.

In this case, a high temperature heat is generated inside the convection chamber 410 due to the heat generated by the convection heater 420, and the generated high temperature is caused by the rotation of the convection fan 440 by the driving of the convection motor 450. Forced convection takes place for the heat of the.

At this time, as the convection fan 440 is driven, heat inside the cooking chamber of the cavity 200 flows to the suction space 411 of the convection chamber 410 through the respective air suction holes 400a.

The air flowing into the suction space 411 is reheated by the convection heater 420 and then flows to the exhaust space 412 by the convection fan 400.

The heat flowed into the exhaust space part 412 is re-supplied into the cooking chamber of the cavity 200 through the air discharge holes 400b under the guidance of the flow path guide 470.

Therefore, the food in a cooking chamber is cooked by the high temperature convection heat provided from the side piece of the said cooking chamber, and the high temperature radiant heat provided from the upper part of the said cooking chamber.

As a result, due to the series of configurations and the operation according to the embodiment of the present invention described above, cooking of food is performed simultaneously with surface heating using a grill function and convection heating using a convection function, thereby enabling uniform cooking.

The present invention is not limited to the above-described embodiments, and as can be seen in the appended claims, modifications can be made by those skilled in the art to which the invention pertains, and such modifications are within the scope of the present invention.

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

First, the convection type microwave oven according to the embodiment of the present invention is capable of simultaneously implementing a grill function and a convection function, thereby having an effect of uniformly cooking food.

Second, the convection type microwave oven according to the embodiment of the present invention can be provided with the grill portion on the upper surface of the cavity and the convection portion on the side of the cavity inside the battle room, thereby reducing the length of the front and rear of the battlefield despite imposing each function. Has the effect.

Therefore, the length of the electric field is reduced compared to the conventional, it is possible to increase the number of charging has the effect of reducing the burden of transportation costs.

Claims (10)

A main body including an outer case and a rear plate and a front plate; A cavity provided at one side of the main body to form a cooking chamber; A heater chamber provided in communication with an upper surface of the cavity and provided with at least one grill heater for providing radiant heat on an inner space; It is provided on the other side space in the main body, the front side of the space is provided with a variety of electrical components such as high voltage transformer and magnetron, the rear side of the space having a blower fan and a fan motor; And, And a convection unit provided in the electrical equipment room for circulating air in the cooking chamber of the cavity and reheating and resupplying the air into the cavity. The method of claim 1, The convection unit A convection chamber having one surface communicating with a side surface of the cavity, one side having a suction space for sucking air in the cooking chamber, and another side having an exhaust space for resupplying air into the cavity; A convection fan provided in the convection chamber to suck air in the cavity; A convection motor for driving the convection fan; A convection type microwave oven including: a convection heater provided in the convection chamber for providing convective heat. The method of claim 2, The convection fan is a convection type microwave, characterized in that provided in the suction space. The method of claim 2, The convection heater is a convection type microwave, characterized in that provided in the suction space. The method of claim 2 or 3, The convection fan is a convection type microwave oven, characterized in that the centrifugal fan that sucks air in the axial direction and discharges in the radial direction. The method according to claim 2 or 4, The convection heater is a convection type microwave oven, characterized in that the circular sheath (sheath) heater. The method of claim 2, The convection type microwave oven, characterized in that a plurality of air suction holes are formed in the front side of the air suction portion of the portion where the convection chamber and the cavity is in communication, a plurality of air discharge holes are formed in the front side where the air exhaust portion is formed. The method of claim 2, Convection type microwave oven provided on the exhaust space portion side further reduces the flow path resistance of the air flowing to the exhaust space portion and guides the direction of the air to the inside of the cooking chamber. The method of claim 2, The convection motor is coupled to be exposed to the outside of the convection chamber, the axis of which is coupled to the convection fan through the convection chamber. The method of claim 1, The grill heater A convection type microwave oven, characterized in that the heater of any one of a quartz tube sheath (sheath) heater, a mirracron (miracron) heater.

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