KR100396764B1 - Microwave oven - Google Patents

Abstract

The present invention relates to a microwave oven capable of two-stage cooking, the present invention is formed on the upper surface of one cooking chamber is formed with a suction port for sucking the air in the cooking chamber, the side or rear of the cooking chamber two hot air flow in the cooking chamber Is formed so that the first discharge port and the second discharge port respectively discharging air toward the food so as to enable two kinds of cooking at the same time are formed at predetermined intervals in the vertical direction, and the suction port, the first discharge port and the second discharge port are It is connected by a circulation duct so that the air inside the cooking chamber continues to circulate, and a heater for emitting heat energy for cooking food is installed on the upper side of the suction port, so that two foods can be cooked at the same time. Simpler, saves time spent cooking food, ultimately for your convenience It was made possible.

Description

Microwave which can cook two steps {MICROWAVE OVEN}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microwave oven, and more particularly, to a microwave oven capable of two-stage cooking having a structure in which two high temperature air flows are formed inside a cooking chamber to simultaneously cook two kinds of dishes.

In general, the microwave oven is a cooker using the principle that the water molecules of the food provided in the metal box to generate heat by its molecular movement using the electromagnetic wave of 2,450MHz.

1 is an external perspective view of a microwave oven according to the prior art, and FIG. 2 is a sectional side view of the main part of the microwave oven according to the prior art.

1 and 2, the microwave oven is divided into a main body 10, which is divided into a cooking chamber CR in which food is cooked, and an electric equipment chamber ER in which various electric appliances are installed, and the main body 10. It is installed on the front of the) consists of a door 20 for opening and closing the cooking chamber (CR).

Here, the electric chamber ER is provided with a magnetron 11 for oscillating high frequency and a high voltage transformer 12 and a high voltage capacitor 13 for applying a high voltage to the magnetron 11.

In addition, a rear surface of the electric chamber ER is provided with a heat radiating fan 14 for sucking external air to cool the electric appliance and a driving motor for driving the heat radiating fan 14.

In addition, the cooking chamber CR is provided with a tray 15 on which food is seated, and the transparent window 21 is provided in the door 20 so that the inside of the cooking chamber CR can be seen even when the door 20 is closed. Is fitted.

In addition, a heater 16 and a heater 16 capable of heating food by supplying heat into the cooking chamber CR during cooking of food between the outer rear surface of the cooking chamber CR and the case 10 ′ from the outside. Heater housing 17 for protection is installed.

In addition, the rear of the cooking chamber CR has a plurality of discharge holes 18a for introducing the heat of the heater 16 into the cooking chamber CR, and the air A inside the cooking chamber CR where cooking of food is finished. A plurality of suction holes 18b for suctioning back to the heater 16 side are formed.

In addition, a blower fan 19 for forcibly flowing the air A to the heater housing 17 so that the air A continues to circulate through the discharge hole 18a and the suction hole 18b of the rear side of the cooking chamber CR. ) And a driving motor for driving the blower fan 19.

The heating apparatus of the microwave oven configured as described above is operated as follows.

First, when the blowing fan 19 is operated when cooking food using the heater 16, the air inside the cooking chamber CR is sucked through the suction hole 18b by the rotational force of the blowing fan 19. Flows into the side.

Thereafter, the air A introduced into the heater housing 17 is heated through heat exchange with the heater 16 while passing through the heater 16 and then again inside the cooking chamber CR through the plurality of discharge holes 18a. Is discharged.

The air (A) discharged into the cooking chamber (CR) as described above transfers its heat to the food to warm the food, and then flows back into the heater housing 17 through the suction hole 18b to perform the above process. Will be repeated.

However, since the conventional microwave oven is configured to cook only one food at a time, it is impossible to cook two foods at the same time, and thus there is a problem that user convenience is impaired.

The object of the present invention devised in view of the problems described above, by providing a structure capable of cooking two foods at the same time, the cooking operation of the food is more simple and the time required for cooking food is saved, the user's convenience The present invention provides a microwave oven capable of cooking two stages.

1 is an external perspective view of a microwave oven according to the prior art;

2 is a side sectional view of a main portion of a microwave oven according to the prior art;

Figure 3 is a side cross-sectional view of the main part of a microwave oven capable of cooking in accordance with the present invention.

<Explanation of symbols for the main parts of the drawings>

50: cooking chamber 51: suction port

53: first discharge outlet 55: second discharge outlet

57: heater 59: circulation duct

61: blower fan 63: door

65: tray 67: trivet

UF: top food LF: bottom food

RE: radiant energy emitted from the heater

In order to achieve the object of the present invention as described above, an inlet for suctioning air in the cooking chamber is formed on the upper surface of one cooking chamber, and two hot air streams are formed on the side or the rear of the cooking chamber at the same time. The first discharge port and the second discharge port respectively discharging air toward the food so as to enable two kinds of cooking are formed at predetermined intervals in the vertical direction, and the suction port, the first discharge port, and the second discharge port are air inside the cooking chamber. Is connected by a circulation duct so that the circulation continues, and the upper side of the suction port is provided with a microwave oven capable of cooking two stages, characterized in that a heater is installed for releasing heat energy for cooking food.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

3 is a side cross-sectional view of a main portion of a microwave oven capable of two-stage cooking according to the present invention. Referring to this, the microwave oven according to the present invention has two food chambers (UF) LF placed therein. The hot air stream is formed and is configured to enable two kinds of cooking at the same time.

That is, the suction port 51 for sucking the air (A ') inside the cooking chamber 50 is formed on the upper surface of the cooking chamber 50, food (UF) (LF) on the side or the rear of the cooking chamber 50 The first discharge port 53 and the second discharge port 55 for discharging the air A 'respectively toward () are formed with a predetermined interval in the vertical direction.

Here, a heater 57 for dissipating heat energy for cooking food (UF) LF is installed above the suction port 51, and the suction port 51 has a plurality of holes formed in the upper surface of the cooking chamber 50. The radiant energy RE such that the radiant energy RE of the heater 57 is supplied to the food UF LF while simultaneously sucking the air A ′ in the cooking chamber 50. ) Serves to introduce into the cooking chamber 50.

In addition, the suction port 51, the first discharge port 53, and the second discharge port 55 are connected by a circulation duct 59 to continuously circulate air in the cooking chamber 50, and the circulation duct 59 The blower fan 61 for forcibly flowing air A 'and a motor for driving the blower fan 61 are provided.

In addition, the first discharge port 53 and the second discharge port 55 is the air (A ') discharged toward each food (UF) (LF) is most suitable for cooking the food (UF) (LF) described above. The discharge area is set to have a discharge flow rate and a discharge flow rate, and the discharge areas of the first discharge port 53 and the second discharge port 55 can be adjusted to appropriate values according to the specifications of the microwave oven.

In addition, according to another embodiment not shown in the drawings, the discharge flow rate of the air (A ') discharged through the first discharge port 53 and the second discharge port 55 according to the type of food (UF) (LF) In order to control arbitrarily, the first discharge port 53 and the second discharge port 55 may be equipped with a flow control valve, respectively.

In the above description, reference numeral 63, which is not described, denotes a door installed at the front of the cooking chamber 50 to open and close the cooking chamber 50, and reference numeral 65 is installed to be rotatable inside the cooking chamber 50 so as to have a lower food LF. ) Represents a tray on which the tray is seated, and reference numeral 67 denotes a trivet on which the upper food UF is seated on the upper side of the tray 65.

In the microwave oven capable of two-stage cooking according to the present invention configured as described above, the radiant energy (RE) and convective energy emitted from the heater (57) are transferred to the food (UF) (LF) through different paths. Cooking of food (UF) LF is made.

First, the radiant energy RE emitted from the heater 57 flows into the cooking chamber 50 through the suction port 51 of the upper surface of the cooking chamber 50, that is, the plurality of holes 51 ′, and then the cooking chamber 50. It is delivered to the food (UF) (LF) provided in the) to heat and cook the food (UF) (LF).

In this case, the radiant energy RE is transmitted to the upper food UF seated on the trivet 67 more than the lower food LF seated on the tray 65, so that the upper food UF is grilled. It is possible.

At the same time, the convective energy emitted from the heater 57 uses air A ′ which is continuously circulated through the suction port 51, the circulation duct 59, the first discharge port 53, and the second discharge port 55. By heating and cooking the food (UF) (LF).

In detail, first, when the blowing fan 61 in the circulation duct 59 is operated, air inside the cooking chamber 50 is circulated through the inlet 51 of the upper surface of the cooking chamber 50 by the rotational force of the blowing fan 61. It flows into the duct 59 side.

At this time, the inlet 51 is formed with a relatively large area so as to minimize the pressure loss when the air (A ') is suctioned.

As such, the air sucked through the suction port 51 passes through the heater 57 installed above the suction port 51 and receives convection energy from the heater 57 and is heated above a predetermined temperature.

Thereafter, the air A ′ heated by heat transfer with the heater 57 is discharged toward the upper food UF and the lower food LF through the first discharge port 55 and the second discharge port 55, respectively. The heat is transferred to the upper food UF and the lower food LF, respectively, to cook the food UF LF together with the radiant energy RE emitted from the heater 57.

As described above, the air A ′ deprived of its heat for cooking the food UF LF is introduced into the circulation duct 59 through the suction port 51 and then reheated by the heater 57. The above process is repeated.

The cooking of the upper and lower foods UF LF by the radiant energy RE and the convective energy of the heater 57 as described above may be performed at the same time as described above, or may be made alone in some cases.

That is, the upper single cooking for cooking only the upper food UF or the lower single cooking for cooking only the lower food LF may be performed.

In particular, since the grill function is optimized when the upper single cooking is performed, it is preferable to perform the upper single cooking when cooking the grill.

As described above, the microwave oven capable of two-stage cooking according to the present invention is provided inside the cooking chamber 50 through the first discharge port 53 and the second discharge port 55 formed on the side or the rear of the cooking chamber 50. By forming two hot air streams, two foods (UF) (LF) can be cooked at the same time, making cooking of foods (UF) (LF) simpler and the time required for cooking foods (UF) (LF). This has the advantage of saving and ultimately user convenience.

Claims (1)

An upper surface of one cooking chamber is provided with a suction port for sucking air in the cooking chamber. Two hot air streams are formed on the side or the rear side of the cooking chamber so that the first discharge outlet and the second discharge outlet, which discharge air to the food so as to enable two kinds of cooking at the same time, have a predetermined interval therebetween in the vertical direction. Formed, The suction port, the first discharge port and the second discharge port are connected by a circulation duct so that the air in the cooking chamber continues to circulate. The microwave oven is capable of cooking in two stages, characterized in that a heater is installed on the upper side of the suction port for emitting heat energy for cooking food.