KR20090104244A - OTR type microwave oven - Google Patents

Abstract

PURPOSE: A hooded microwave oven is provided to facilitate cooling a heating source. CONSTITUTION: A hooded microwave oven comprises a cavity(100), a heater, and a bent fan assembly(150). The cavity is equipped in the cavity. The heater is installed at the one side of the cavity. The heater provides the heat for the cooking of the food at the cavity. The heater is shielded by a heater cover(171). In the heater cover, an intake opening(173) and an exhaust opening(175) are formed. The intake opening and the exhaust opening are loaded and unloaded with the drive of the bent fan assembly. The bent fan assembly is installed at the one side of the cavity. The bent fan assembly forms the flow of the air for the flow of the air and the cooling of the heater.

Description

Hooded microwave oven {OTR type microwave oven}

The present invention relates to a microwave oven, and more particularly, to a combined use microwave oven provided with a vent pan assembly for the hood function.

The hood combined microwave is a microwave oven having a hood function for purifying air containing contaminants generated in the process of cooking food in a cooking apparatus installed below and discharging the air into the interior or discharging it to the outside. The hood combined microwave is provided with a vent pan assembly to implement a hood function. The vent fan assembly forms a flow of air for sucking contaminant-containing air into the hood-integrated microwave oven and discharging it to indoors or outdoors.

However, the following problems occur in the microwave oven according to the prior art.

In general, a microwave oven is provided with a cooling fan for cooling a heating source such as a magnetron or a heater that provides heat for cooking food. In particular, in the case of the heater that generates heat at a high temperature, another heating source such as a magnetron is used for cooling the other heating source to prevent the cooling efficiency of the heater or the high temperature air cooling the heater from being lowered. Cooled by a cooling fan and a separate cooling fan. Therefore, a disadvantage arises in that the number of parts constituting the product is increased.

The present invention is to solve the problems caused by the prior art as described above, an object of the present invention is to provide a hood combined microwave oven configured to more simply cool the heating source.

According to an embodiment of the present invention for achieving the object as described above, the present invention is a cavity provided with a cooking chamber; A heater installed at one side of the cavity and providing heat for cooking food in the cooking chamber; And a vent fan assembly installed at one side of the cavity to form a flow of air for a hood function and a flow of air for cooling the heater. It includes.

According to another embodiment of the present invention, the present invention is provided with a cooking chamber and the electric chamber, the cavity is formed with a plurality of inlet and exhaust ports to serve as the inlet or outlet of the air flowing in and out; A cooling fan installed in the electrical equipment room and forming a flow of air for cooling the electrical equipment; A heater installed at one side of the cavity and providing heat for cooking food in the cooking chamber; And a vent fan installed at one side of the cavity to form a flow of air for a hood function and a flow of air for cooling the heater. It includes.

According to another embodiment of the present invention, the present invention is a cavity provided with a cooking chamber; A heater cooling intake flow path provided in the cavity and through which air sucked into the inside of the cavity flows to cool the heater; And a hood intake flow path provided in the cavity and through which air sucked into the hood flows for function of the hood; It includes.

According to another embodiment of the present invention, the present invention is a cavity provided with a cooking chamber; An intake flow path for cooling electric parts, in which air sucked into the inside to cool the electric parts installed in the cavity; An exhaust passage for an electric component for cooling the electric component and flowing air discharged to the outside; A heater cooling intake flow path provided in the cavity and through which air sucked into the inside of the cavity flows to cool the heater; And a hood intake flow path provided in the cavity and through which air sucked into the hood flows for function of the hood; It includes.

According to the present invention, there is an advantage that the heating source can be cooled more simply.

Hereinafter, with reference to the accompanying drawings, an embodiment of a combined microwave oven according to the present invention will be described in more detail.

1 is a plan view showing an upper surface of an embodiment of a hood-use microwave oven according to the present invention.

Referring to FIG. 1, a cooking chamber (not shown) is provided inside the cavity 100 of a microwave oven (hereinafter referred to as a “microwave oven”). The cooking chamber is a place where food is cooked. The front plate 110 and the back plate 120 respectively form front and rear surfaces of the cavity 100. The upper plate 130 forms an upper surface of the cavity 100.

The upper end of the front plate 110 corresponding to the upper side of the cooking chamber is provided with a plurality of vents through which air is introduced. The vent includes first and second air inlets 111 and 115 through which air is sucked and an exhaust port 113 through which air is discharged.

The first intake 111 is provided on the upper right side of the drawing of the front plate 110. The first intake port 111 is an entrance area in which indoor air is sucked into the microwave oven by the driving of the cooling fan assembly 150 to be described later. The exhaust port 113 is provided on the left side of the upper end of the front plate 110 in the drawing. The exhaust port 113 serves as an outlet through which the air circulated in the cooking chamber is discharged to the outside by the cooling fan assembly 150. The second intake port 115 is provided on the left side of the upper end of the front plate 110 corresponding to the right side of the drawing of the exhaust port 113. The second intake port 115 is an entrance area through which the air in the room is sucked into the microwave oven by driving the vent fan assembly 180 to be described later.

Meanwhile, the upper plate 130 substantially forms a ceiling surface of the cooking chamber. In addition, the upper plate 130 is provided with a plurality of cooking chamber exhaust holes 131 communicating with the cooking chamber. The cooking chamber exhaust hole 131 serves as an outlet through which air circulated inside the cooking chamber is discharged.

In addition, an electrical equipment room 140 is provided in the cavity 100 corresponding to the right side of the cooking chamber. The electrical equipment room 140 is provided with various electronic components such as a magnetron and a high voltage transformer for oscillating microwaves for cooking food in the cooking chamber.

In addition, a cooling fan assembly 150 is installed in the electric compartment 140. The cooling fan assembly 150 includes a fan motor 151 and a cooling fan 153. The fan motor 151 provides a driving force for the rotation of the cooling fan 153. The cooling fan 153 is rotated by the fan motor 151 to form a flow of air for cooling the electric component and circulating the cooking chamber. In more detail, the cooling fan 153 is formed on the right side of the drawing of the cooking chamber in contact with the electrical equipment chamber 140 while being sucked through the first inlet 111 to cool the electrical components. It flows into the inside of the cooking chamber through the two cooking chamber suction holes (not shown) to circulate the cooking chamber and form a flow of air discharged through the cooking chamber exhaust hole 131. In addition, the cooling fan 153 is installed to be inclined downward toward the rear end of the electric chamber 140.

On the other hand, the cavity 100 is provided with a partition plate 160. The partition plate 160 extends from the right end to the right side of the upper plate 130 in the drawing. If the partition plate 160 is the same as the upper plate 130 is preferably located on a plane. The partition plate 160 serves to substantially partition the electrical equipment room 140 and the intake air flow passage P1 for electrical component cooling, which will be described later.

In addition, the partition plate 160 has a communication opening 161 is formed. The communication opening 161 serves to communicate the electrical equipment chamber 140 and the intake flow passage P1 for cooling the electrical equipment. The communication opening 161 is formed by cutting a portion of the rear end portion of the partition plate 160 that is directly above the cooling fan 153.

The heater assembly 170 is installed on the upper plate 130. The heater assembly 170 provides a heater heat for cooking food in the cooking chamber. The configuration of the heater assembly 170 is already known, and the heater assembly 170 may include at least one heater, a reflector (not shown) for reflecting heater heat of the heater into the cooking chamber, and the heater and the reflector. It comprises a heater cover 171 for shielding to prevent the phenomenon that the heater heat of the heater is transmitted to the outside. An intake opening 173 and an exhaust opening 175 are formed in the heater cover 171. The intake opening 173 serves as an inlet zone through which air is sucked into the heater assembly 170 to cool the heater. In addition, the exhaust opening 175 is sucked into the heater assembly 170 and serves as an outlet through which the air cooling the heater is discharged to the outside. The heater assembly 170 may allow the intake opening 173 and the exhaust opening 175 to be adjacent to the second intake port 115 or the suction part (not shown) of the vent fan 183 and 185 to be described later. It is installed on the upper plate 130.

And the vent fan assembly 180 is installed at the rear end of the upper plate 130. The vent fan assembly 180 forms a flow of air for the hood function and at the same time forms a flow of air for cooling the heater assembly 170. The vent fan assembly 180 includes one vent motor 181 and two vent fans 183 and 184. The vent motor 181 provides a driving force for the rotation of the vant pans 183 and 185. The vent fans 183 and 185 are installed at both sides of the vent motor 181. Hereinafter, the left side of the vent pans 183 and 185 is referred to as a first vent pan 183 and the right side of the vent pans 183 and 185 is referred to as a second vent pan 185.

The first and second vent pans 185 have a hood function, that is, a flow of air for discharging air containing contaminants generated in a process of cooking food in a cooking apparatus installed below the microwave oven to the outside. To form. In more detail, the first and second vent pans 185 are sucked into the inside of the microwave oven through a hood inlet (not shown) formed at the bottom of the microwave oven, so that the hood intake passage P4 will be described later. Air containing the pollutant flows to the outside through the duct (not shown) connected to the microwave oven. To this end, the suction portions of the first and second vent pans 185 face both sides of the microwave oven, and the discharge portions 184 and 186 of the first and second vent pans 185 face the ducts, respectively. .

In addition, the first vent fan 183 forms a flow of air for cooling the heater assembly 170. In more detail, the first vent fan 183 is sucked into the microwave oven through the second intake port 115 and is further introduced into the heater assembly 170 through the intake opening 173. In the state of being sucked and cooling the heater assembly 170, a flow of air discharged through the exhaust opening 175 is formed.

On the other hand, the vent fan assembly 180 is driven at a relatively low power as compared to when driving the hood function when driving the cooling of the heater assembly 170. Therefore, when the hood function is not performed, it is possible to minimize the power consumption for driving the vent fan assembly 180.

In addition, the upper plate 130 is provided with an air duct 191. The air duct 191 forms a part of the exhaust passage P2 for electric component cooling and the intake passage P4 for heater cooling, which will be described later. The air duct 191 is formed in a flat polyhedral shape so as to have a U-shaped longitudinal section that is opened substantially downward. The air duct 191 is installed in the upper plate 130 so that the cooking chamber exhaust hole 131 is positioned therein. In addition, the air duct 191 is in communication with the exhaust port 113, the second intake port 115 and the cooking chamber exhaust hole 131. A compartment rib 193 is provided inside the air duct 191. The compartment rib 193 is for partitioning the exhaust passage P2 for electric component cooling and the intake passage P4 for heater cooling. To this end, the compartment rib 193 is disposed between the rear surface of the front plate 110 and the cooking chamber exhaust hole 131 and the intake opening 173 corresponding to the exhaust port 113 and the second intake port 115. One side of the corresponding heater cover 171 is connected.

In addition, the upper plate 130 is provided with an air guide 195. The air guide 195 has an electric inlet flow path P1 for cooling the room chamber and an air inlet flow path P4 for the hood in another space inside the microwave oven, more specifically, the cavity 100 adjacent to the heater assembly 170. It partitions with the upper space of). The front end of the air guide 195 is formed between the upper plate 130 and the partition plate 160 on the rear surface of the front plate 110 corresponding to the first and second intake holes 111 and 115. Thus it extends backwards. The rear end of the air guide 195 extends to the right side of the drawing to be spaced apart by a predetermined interval of the back plate 120.

On the other hand, the inside of the microwave oven is provided with a plurality of flow paths through which the air sucked into the inside of the microwave oven or the air discharged to the outside of the microwave oven flows. More specifically, the inside of the microwave oven is provided with an intake flow passage P1 for electric component cooling, an exhaust passage P2 for electric component cooling, an intake passage P4 for heater cooling, and an intake passage P4 for a hood. do.

The intake flow path P1 for cooling the electric parts is a place where air sucked into the microwave oven flows to cool the electric parts. The front end of the intake passage P1 for the electric component cooling is in communication with the first intake port 111, and the rear end of the intake passage P1 for the electric component cooling is the electrical compartment 140 through the communication opening 161. ).

The exhaust component cooling exhaust path P2 flows into the cooking chamber in a state in which the electrical component cooling intake flow path P1 flows to cool the electrical component, thereby circulating the cooking chamber, It is the place where air discharged to the outside flows. The exhaust passage P2 for cooling the electric component is substantially formed in the air duct 191. Accordingly, a rear end of the exhaust component cooling exhaust passage P2 is in communication with the cooking chamber exhaust hole 131, and a front end of the electrical component cooling exhaust passage P2 is in communication with the exhaust port 113.

Meanwhile, the heater cooling intake passage P4 is a place where air sucked into the microwave oven flows to cool the heater assembly 170. The heater cooling intake passage P4 is substantially formed in a part of the air duct 191 and the inside of the heater cover 171. The front end of the heater cooling intake passage P4 communicates with the second intake passage 115, and the rear end of the heater cooling intake passage P4 is adjacent to the suction portion of the first vent fan 183. Is located.

Next, the hood intake passage (P4) is a place where air containing contaminants generated in the process of cooking food in a cooking apparatus installed below the microwave oven is sucked into the microwave oven and flows. The lower end of the hood intake passage P4 is in communication with the hood intake port. The upper end of the hood intake passage P4 communicates with the suction portions of the first and second vent fans 185.

Hereinafter will be described the flow of air in the embodiment by the hood combined microwave oven according to the present invention.

First, the flow of air in the cooking process of the food according to the embodiment of the combined microwave oven according to the present invention will be described in more detail with reference to the accompanying drawings.

Figure 2 is a plan view showing the flow of air in the cooking process of the food in the microwave oven according to the present invention.

First, the heating source, that is, the magnetron or / and the heater assembly 170 is driven to heat and cook food in the cooking chamber. At the same time, as shown in FIG. 2, the cooling fan assembly 150 and the vant fan assembly 180 are driven so that the air sucked into the microwave oven includes the electric component and the heater assembly 170 each including a magnetron. Cooled and discharged to the outside of the microwave oven.

More specifically, when the cooling fan assembly 150 is driven, the air sucked through the first intake port 111 flows through the intake flow path P1 for cooling the electric component. In addition, the air flowing through the intake flow path P1 for cooling the electric component is flowed into the electric chamber 140 through the communication opening 161 to cool the electric component including the magnetron. Next, the air having cooled the electric component is flowed into the interior of the cooking chamber through the cooking chamber intake hole, and is exhausted through the cooking chamber exhaust hole 131 to the exhaust passage P2 for the electrical component cooling through the interior of the cooking chamber. Flows. And the air which flowed through the said electric component cooling exhaust flow path P2 is exhausted indoors through the exhaust port 113.

Meanwhile, when the vent fan assembly 180, that is, the first vent fan 183 is driven, the vent fan assembly 180, that is, the first vent fan 183 is driven, is sucked into the heater cooling intake passage P4 through the second intake port 115, and flows through the heater cooling intake passage. The heater assembly 170, that is, substantially cools the heater and is sucked into the suction part of the first vent fan 183. In more detail, the air sucked through the second intake port 115 by the driving of the first vent fan 183 is sucked into the heater cover 171 through the intake opening 173 to provide the heater. Cool. And it is discharged to the outside of the heater cover 171 through the exhaust opening 175 is sucked into the suction portion of the first vent fan 183. Air sucked into the suction part of the first vent fan 183 is discharged to the discharge part 184 of the first vent fan 183 and is discharged to the outside through the duct.

Next, the flow of air at the time of the hood function according to the embodiment of the hood combined microwave oven according to the present invention will be described in more detail with reference to the accompanying drawings.

Figure 3 is a plan view showing the flow of air at the time of the hood function in the embodiment of the hood combined microwave oven according to the present invention.

Referring to FIG. 3, when the hood function is selected, the vent fan assembly 180 is driven. Therefore, air containing contaminants generated in the process of cooking food in the cooking apparatus installed below the microwave oven is sucked through the hood intake. In addition, air containing contaminants sucked through the hood suction port flows through the hood intake flow path P4 and is sucked into the suction portions of the first and second vent fans 185. Air containing contaminants sucked into the suction portions of the first and second vent pans 185 is discharged to the discharge portions 184 and 186 of the first and second vent fans 185 and passes through the duct. It is discharged to the outdoors.

Meanwhile, in the present embodiment, the vent fan assembly 180 is driven at a relatively low power when driven for cooling the heater assembly 170 as compared with the case where the vent fan assembly 180 is driven for the hood function. Therefore, power required for driving the vent fan assembly 180 for cooling the heater assembly 170 may be reduced.

Within the scope of the basic technical spirit of the present invention as well as many other modifications are possible to those skilled in the art, the scope of the present invention should be interpreted based on the appended claims. .

In the above-described embodiment, the air containing the contaminant is discharged to the outside by the driving of the vent fan assembly, but is not necessarily limited thereto. That is, depending on the environment of the hood microwave oven is installed, the air containing contaminants may be purified and discharged to the room.

In the microwave combined hood according to the present invention configured as described above, the heater providing heat for cooking food in the cooking chamber is cooled by the vent pan assembly for the hood function. Therefore, according to the present invention, by eliminating the cooling fan for cooling the heater, it is possible to simplify the configuration of the product, it can be expected to reduce the manufacturing process and manufacturing cost of the product.

1 is a plan view showing the top of an embodiment of a microwave oven with a hood according to the present invention.

Figure 2 is a plan view showing the flow of air in the food cooking process in an embodiment of a microwave oven with a hood according to the present invention.

Figure 3 is a plan view showing the flow of air at the time of hood function in an embodiment of a hood combined microwave oven according to the present invention.

Claims (22)

Cavity is provided with a cooking chamber; A heater installed at one side of the cavity and providing heat for cooking food in the cooking chamber; And A vent fan assembly installed at one side of the cavity to form a flow of air for a hood function and a flow of air for cooling the heater; Hooded microwave oven including a. The method of claim 1, The heater is a microwave oven hood is shielded by a heater cover. The method of claim 2, The hood cover is a microwave oven, the inlet opening and exhaust opening is formed in the heater cover, the air is introduced into the inside by the drive of the fan fan assembly. The method of claim 3, wherein And the exhaust opening is positioned adjacent to the suction portion of the vant pan constituting the vant pan assembly. The method of claim 1, The vent fan assembly is a hood combined microwave oven is driven at a relatively low power during the drive for the cooling of the heater as compared to the drive for the hood function. The method of claim 1, The vent fan assembly, 1 vant motor; And Two vent fans driven by the vent motor; Hooded microwave oven including a. The method of claim 6, Any one of the vent fans forms a hood function or a flow of air for cooling the heater, The other one of the vent pan is a hood combined microwave to form only the flow of air for the hood function. A cavity having a cooking chamber and an electric chamber and having a plurality of inlets and exhaust ports which serve as inlets or outlets of air flowing in and out; A cooling fan installed in the electrical equipment room and forming a flow of air for cooling the electrical equipment; A heater installed at one side of the cavity and providing heat for cooking food in the cooking chamber; And A vent fan installed at one side of the cavity and forming a flow of air for a hood function and a flow of air for cooling the heater; Hooded microwave oven including a. The method of claim 8, And the cooling fan is configured to flow through the cooking chamber and form a flow of air discharged through a part of the exhaust port while the cooling fan is sucked through a part of the inlet port to cool the electric component. The method of claim 8, The vent fan is configured to provide a flow of air for a function of a hood which is sucked through a part of the inlet and discharged to the outside, and a flow of air that is sucked through a part of the remaining of the inlet and discharged to the outside while cooling the heater. Hood combined use microwave oven. Cavity is provided with a cooking chamber; A heater cooling intake flow path provided in the cavity and through which air sucked into the inside of the cavity flows to cool the heater; And A hood intake passage provided in the cavity and through which air sucked into the hood flows for function of the hood; Hooded microwave oven including a. The method of claim 11, And the heater cooling intake flow passage is formed at least inside the heater cover that shields the heater. The method of claim 12, The heater cover, the hood combined microwave oven is formed with an intake opening and an exhaust opening for entering and exiting the air flowing through the heater cooling intake passage. The method of claim 11, The hood combined microwave for flowing the air intake flow path for cooling the heater is discharged to the indoor or outdoor air cooled. The method of claim 11, And a flow of air flowing through the heater cooling intake passage and the hood intake passage is formed by one fan. Cavity is provided with a cooking chamber; An intake flow path for cooling electric parts, in which air sucked into the inside to cool the electric parts installed in the cavity; An exhaust passage for an electric component for cooling the electric component and flowing air discharged to the outside; A heater cooling intake flow path provided in the cavity and through which air sucked into the inside of the cavity flows to cool the heater; And A hood intake passage provided in the cavity and through which air sucked into the hood flows for function of the hood; Hooded microwave oven including a. The method of claim 16, The flow of air flowing through the intake flow path for cooling the electric component and the exhaust flow path for the electrical component is formed by a cooling fan, The hood combined microwave oven wherein the flow of air flowing through the heater cooling intake passage and the hood intake passage is formed by a vent fan. The method of claim 16, The air flowing through the intake flow passage for cooling electric parts and the intake flow passage for heater cooling is sucked through an intake hole formed in the front of the cavity, And a microwave flowing through the exhaust path for cooling the electronic component is discharged through an exhaust port formed at the front of the cavity. The method of claim 16, And the hood intake flow path for cooling the electric component parts and the hood intake flow path are partitioned by an air guide. The method of claim 16, And a hood-use microwave oven, wherein the exhaust component cooling exhaust path and the hood intake flow passage are partitioned by an air duct provided in the cavity to form the exhaust passage for cooling the electrical component. The method of claim 16, And the hood cooling intake passage and the hood exhaust passage are partitioned by a heater cover that shields the heater. The method of claim 21, The heater intake flow path for cooling the heater, the microwave combined hood formed in the heater cover.

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