KR100590334B1 - A cooling structure of interior parts in Electric oven - Google Patents

Abstract

The present invention relates to the electrical compartment cooling structure of the electric oven to rearrange a plurality of components provided in the electrical equipment compartment, partitioning the first and second blow pans as barriers to facilitate the cooling of the core components. The electric chamber cooling structure according to the present invention is formed on a right plate 390 forming a right exterior of the electric chamber 300 having a plurality of components, and includes a first suction port 390a through which outside air is introduced; A duct 308 installed at one side of the electrical equipment room 300 and serving as a passage through which air introduced into the first suction port 390a is discharged; A second suction port 380a formed in the left plate 380 opposite to the right plate 390 to introduce external air; A barrier 302 installed inside the electric battle room 300 and partitioning an internal space of the electric battle room 300 before and after; A first blow fan 360 installed at the left side of the barrier 302 to induce circulation of air introduced into the first suction port 390a; It is installed on the right side of the barrier 302, it characterized in that it comprises a second blow fan 370 to induce the circulation of the air introduced into the second suction port (380a). According to the present invention as described above, there is an advantage that the cooling of the core parts provided in the electrical equipment chamber and the electrical equipment chamber is provided with a large number of components.

Electric oven, electric room, key parts, 1/2 blow fan, barrier, 1/2 inlet

Description

A cooling structure of interior parts in Electric oven

1 is a side cross-sectional view of a conventional electric oven.

Figure 2 is a perspective view showing the electric room of the conventional electric oven.

Figure 3 is a side cross-sectional view of the electric oven according to a preferred embodiment of the present invention.

Figure 4 is a perspective view showing the electrical chamber of the electric oven according to a preferred embodiment of the present invention.

Figure 5 is a partial perspective view showing a hole in which the high-pressure capacitor is installed in the barrier of the electric oven electric chamber according to a preferred embodiment of the present invention.

6 is a partial perspective view showing a state in which a high-voltage capacitor is installed in the hole of FIG.

Explanation of symbols on the main parts of the drawings

100. ..... galley 120. ..... door

140. ..... Tray 160. ..... Lower Heater

200. ..... Heater chamber 220. ..... Convection fan

240. ..... Motor 250. ..... Shaft

260. ..... Convection Heater 280. ..... Chamber Cover

282. ..... Air Access 300. ..... Battlefield

302 ... .... Barrier 302a. ..... Hall

303. ..... Bracket 304. ..... Halogen Heater

306. ..... Heater cover 308. ..... Duct

310. ..... Upper heater 312. ..... Steamer fan

320. ..... High pressure transformer 330. ..... High pressure capacitor

340. ..... Magnetron 360. ..... 1st Blow Fan

370. ..... 2nd Blow Pan 380. ..... Left Plate

380a. ..... 2nd inlet 390. ..... right side plate

390a. ..... 1st inlet

The present invention relates to an electric oven, and more particularly, to rearrange a plurality of parts provided in the electrical equipment room and partition the first blower and the second blower into barriers so as to smoothly cool the core parts. It relates to an electric room cooling structure.

Electric oven is a cooker product that can cook a variety of food by increasing the output by using various types of heating sources to cook a large amount of food quickly and evenly.

1 is a side cross-sectional view of a conventional convection type electric oven.

Referring to FIG. 1, a door 11 that is selectively opened and closed from the upper side to the lower side is installed at a front surface of the cooking chamber 10 where food is cooked, and the air inside the cooking chamber 10 is sucked in the rear of the cooking chamber 10. And the heater chamber 30 for discharging into the cooking chamber 10 is installed.

The heater chamber 30 has a motor 20 for driving the convection fan 40 to be described below, and a convection fan 40 coupled to the rotating shaft 21 of the motor 20 to generate air circulation and the And a convection heater 44 positioned around the convection fan 40 to generate heat, and the back plate 32 forming the rear of the cooking chamber 10, that is, the rear surface of the cooking chamber 10, forwards the heater. The chamber cover 42 is installed to secure the space of the chamber 30.

In the center of the chamber cover 42 is formed a circular air access hole (42a) for sucking the air in the cooking chamber 10 by the convection fan 40, the air heated in the heater chamber 30 The convection pan 40 is discharged back into the cooking chamber 10.

The tray 12 in which the workpiece is located is installed below the cooking chamber 10, and a lower heater 80 is generated to generate heat by applying power. In addition, an upper heater 60 having the same function as the lower heater 80 is installed in the upper part of the cooking chamber 10, that is, the electrical equipment chamber 50, and heat generated by the upper heater 60 is measured in the cooking chamber ( 10) The stirrer fan 61 to be transferred to the inside is further installed.

As shown in FIG. 2, the electric chamber 50 has a high voltage transformer 51 for generating a high voltage according to supply of power, a high voltage capacitor 52 for charging a high voltage from the high voltage transformer 51, and the The magnetron 53 generates electromagnetic waves in response to the voltage supply from the high voltage capacitor 52 and supplies them to the cooking chamber 10, the upper fan 70 for discharging the gas in the cooking chamber 10, and the electrical equipment chamber ( Many components, such as the 1st blow fan 54 which discharge | releases the heat in 50) outside, and the 2nd blow fan 55 which cools the heat of the said magnetron 53, are installed.

In addition, the left side plate 57 and the right side plate 56 are formed on the left and right sides of the electric compartment 50, respectively, and the front side of the left side plate 57 and the right side plate 56 are external. The first suction port (56a) and the second suction port (57a) for inhaling the air into the electric chamber 50 is further formed.

In addition, an exhaust port (not shown) for discharging heat exhausted by the first blow fan 54 to the outside is formed on the front surface of the electric compartment 50. In addition, reference numeral 62 is a halogen heater, 63 is a heater cover.

Looking at the operation state of the electric oven having the configuration as described above, the high frequency is radiated from the magnetron 53 to the cooking chamber 10 by the application of the power, generated in the upper heater 60 and the lower heater 80 Heat is transferred to the cooking chamber 10. In addition, the convection fan 40 inside the heater chamber 30 rotates by the motor 20 to suck air in the cooking chamber 10, and is heated by the convection heater 44, and then again into the cooking chamber ( 10) Perform hot air circulation to discharge inside.

To this end, the air inside the cooking chamber 10 is sucked through the air access hole 42a processed in the rear wall of the cooking chamber 10, that is, the center of the chamber cover 42, and inside the heater chamber 30. The hot air is formed by the convection fan 40 connected by the motor 20 and the rotation shaft 21 and the convection heater 44 installed around the convection fan 40. That is, the motor 20 rotates the convection fan 40 together with the operation of the electric oven, and at the same time, the convection heater 32 operates to generate heat for heating ambient air.

The convection fan 40 sucks the surrounding air into the heater chamber 30 through the air access hole 42a in the center of the chamber cover 42 and blows the air into the cooking chamber 10. Therefore, the ambient air heated by the heat generated by the convection heater 44 circularly installed around the convection fan 40 forms hot air forcedly circulated by the convection fan 40.

The hot air is blown back into the cooking chamber 10 by the convection fan 40 through the rear wall of the cooking chamber 10, that is, through the air access hole 42a formed in the chamber cover 42, and thus, You will experience forced convection, which supplies the heat energy needed for cooking.

In addition, the external air flowing into the first suction port 56a and the second suction port 57a by the heat of the plurality of parts provided in the electric compartment 10, that is, the electric oven being operated, causes the heated state of the plurality of parts. To be cooled. That is, the outside air introduced into the first suction port 56a and the second suction port 57a cools the heat of the high pressure transformer 51 and the high pressure capacitor 52 behind the electric chamber 50, and the second The heat of the magnetron 53 is cooled through the blow fan 55.

In addition, the heat remaining in the electrical equipment chamber 50 is discharged to an exhaust port (not shown) in front of the electrical equipment chamber 50 by the first blow fan 54 installed in the center of the electrical equipment chamber 50.

However, the above conventional technologies have the following problems.

In operation of the electric oven, a voltage boost of 4000V is required to drive the magnetron 53. The cores of the components used for boosting are the high voltage transformer 51 and the high voltage capacitor 52. When the high voltage capacitor 52 is driven at a temperature higher than 85 ° C., the electrical insulation performance of the high voltage capacitor 52 decreases due to thermal expansion of the insulating oil inside the high voltage capacitor 52, resulting in damage to the high voltage capacitor 52. In addition, when the average temperature of the electrical equipment chamber 50 is 80 degrees, cooling of the high-pressure capacitor 52 is not smooth, a fatal defect occurs.

Therefore, the outside air introduced through the first suction port 56a and the second suction port 57a is insufficient, so that the high pressure capacitor 52 is not cooled smoothly, and the heated state of the electric compartment 50 is also cooled. There is a problem that can not be.

An object of the present invention for solving the above problems, it is possible to rearrange a plurality of parts provided in the electrical equipment room, partition the first blow fan and the second blow fan as a barrier to facilitate the cooling of the core parts. It is to provide a full room cooling structure.

The electric compartment cooling structure of the electric oven according to the present invention for achieving the object as described above is formed in the right plate to form the right appearance of the electric compartment equipped with a plurality of parts, the first inlet to the outside air flows in Wow; A duct installed at one side of the electrical equipment room and serving as a passage through which air introduced into the first suction port is discharged; A second suction port formed in a left plate opposite to the right plate and into which outside air is introduced; A barrier installed inside the electrical equipment room and partitioning an interior space of the electrical equipment room from the front and the rear; A first blow fan provided at a left side of the barrier to induce circulation of air introduced into the first suction port; It is installed on the right side of the barrier, characterized in that it comprises a second blow fan for inducing circulation of the air introduced into the second inlet.

In front of the second blow fan partitioned by the barrier, a high voltage capacitor for charging a high voltage, a high voltage transformer for generating a high voltage, and a magnetron for generating electromagnetic waves and supplying the electromagnetic wave to the cooking chamber according to the voltage supply from the high voltage capacitor are installed. It is done.

The high voltage capacitor is fixed to the barrier.

According to the present invention having such a configuration, there is an advantage that the cooling of the core parts provided in the electrical equipment chamber and the electrical equipment chamber provided with a plurality of components is smooth.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention as described above will be described in detail.

Figure 3 is a side cross-sectional view of the electric oven according to a preferred embodiment of the present invention, Figure 4 is a perspective view showing an electric chamber of the electric oven according to a preferred embodiment of the present invention. 5 and 6 are perspective views showing a hole and a state in which a high-voltage capacitor is installed in the barrier of the electric oven electric chamber according to the preferred embodiment of the present invention.

As shown in these drawings, the electric chamber cooling structure of the electric oven according to the present invention, the door 120 is selectively installed in the front of the cooking chamber 100 in which food is cooked from the upper side to the lower side, the cooking chamber ( The heater chamber 200 is installed at the rear of the cooking chamber 100 to suck the air inside the cooking chamber 100 and discharge the air into the cooking chamber 100.

The door 120 has a glass (not shown) for viewing the inside of the cooking chamber 100, a handle (not shown) for opening and closing the door 120, and an electrodeposition plate for fixing the glass. And a door plate (not shown) which maintains a space with the electrodeposition plate and forms the exterior of the door 120.

In addition, the heater chamber 200 includes a motor 240 driving the convection fan 220 to be described below, and a convection fan 220 coupled to the rotation shaft 250 of the motor 240 to generate air circulation. And a convection heater 260 positioned around the convection fan 220 to generate heat.

In addition, a chamber cover 280 is installed at the rear of the cooking chamber 100 to secure a space of the heater chamber 200. In more detail, a space of the heater chamber 200 is secured to the back plate 270 that forms the rear surface of the cooking chamber 100 and protrudes forward to partition the heater chamber 200 and the cooking chamber 100. Is formed.

In the center of the chamber cover 280 is formed an air access hole 282 that sucks the air in the cooking chamber 100 by the convection fan 220 in a circular shape, the air heated in the heater chamber 200 The convection pan 220 is discharged back into the cooking chamber 100.

An upper heater 310 is disposed below the cooking chamber 100, and a tray 140 on which a workpiece is located, and generates heat by applying power to an upper portion of the cooking chamber 100, that is, the electrical equipment chamber 300. A stirrer pan 312 is installed to transfer the heat generated from the upper heater 310 into the cooking chamber 100. In addition, a lower heater 160 that performs the same function as the upper heater 310 is installed in the lower portion of the cooking chamber 100. In addition, reference numeral 304 is a halogen heater, 306 is a heater cover.

As shown in FIG. 4, the electric chamber 300 includes a high voltage transformer 320 for generating a high voltage according to the supply of power, a high voltage capacitor 330 for charging a high voltage from the high voltage transformer 320, and The electric field chamber 300 adjacent to the left plate (viewed from the front, 380) of the magnetron 340 generating electromagnetic waves and supplying them into the cooking chamber 100 according to the voltage supply from the high voltage capacitor 330 will be described below. It is provided in order in the left part of an inner side.

In addition, a first blow fan 360 for discharging heat generated in the electric chamber 300 to the outside, and a second blow cooling the heat of the high pressure capacitor 330, the high pressure transformer 320, and the magnetron 340. The fan 370 is installed at the right and left sides of the rear half of the battlefield room 300, respectively. A barrier 302 is further provided between the first blow fan 360 and the second blow fan 370 to partition a cooling area inside the electric chamber 300.

The barrier 302 is provided with a hole 302a for installing the high pressure capacitor 330, and is provided with a bracket 303 for fixing the high pressure capacitor 330 to the barrier 302. The hole 302a is penetrated to the barrier 302 by a certain height so that the high pressure capacitor 330 does not close to the bottom of the electric chamber 300, and the bracket 303 is operated when the high pressure capacitor 330 is operated. It is screwed to be fixed to the side of the barrier 302 so as not to flow.

In addition, a left side plate 380 and a right side plate 390 are formed on left and right sides of the electric compartment 300, respectively, and the front side of the left side plate 380 and the right side plate 390 is located outside. The first suction port 390a and the second suction port 380a which respectively suck the air into the electric chamber 300 are further formed.

And, from the front of the first blow fan 360 to the front of the electrical equipment room 300, the duct in which the hot air of the electrical equipment room 300 is discharged to the front of the electrical equipment room 300 by the blowing of the first blower fan (360) 308 is installed, an exhaust port (not shown) through which the hot air is discharged to the outside through the duct 308 is formed on the front of the electric chamber 300.

Looking at the operating state of the electric oven having the configuration as described above, the high frequency is radiated from the magnetron 340 to the cooking chamber 100 by the application of the power, generated in the upper heater 310 and lower heater 160 Heat is transferred to the cooking chamber 100. In addition, the convection fan 220 inside the heater chamber 200 rotates by the motor 240 to suck the air in the cooking chamber 100, and is heated by the convection heater 260, and then again into the cooking chamber ( 100) Perform a hot air circulation to discharge the inside.

To this end, the air inside the cooking chamber 100 is sucked through the air access hole 282 processed in the rear wall of the cooking chamber 100, that is, the center of the chamber cover 280, and inside the heater chamber 200. The hot air is formed by the convection fan 220 connected by the motor 240 and the rotary shaft 250 and the convection heater 260 installed around the convection fan 220. That is, the motor 240 rotates the convection fan 220 together with the operation of the electric oven, and at the same time, the convection heater 260 operates to generate heat for heating ambient air.

The convection fan 220 sucks air around the inside of the heater chamber 200 through the air access hole 282 in the center of the chamber cover 280 and blows the air into the cooking chamber 100. Therefore, the ambient air heated by the heat generated by the convection heater 260 circularly installed around the convection fan 220 forms hot air forcedly circulated by the convection fan 220.

The hot air is blown back into the cooking chamber 100 through the air access hole 282 formed in the rear wall of the cooking chamber 100, that is, the chamber cover 280 by the convection fan 220, You will experience forced convection, which supplies the heat energy needed for cooking.

In addition, the external air flowing into the first suction port 390a and the second suction port 380a by the heat of the plurality of parts provided in the electrical equipment room 300, that is, the electric oven being operated, causes the heated state of the plurality of parts. To be cooled.

That is, the outside air sucked into the first suction port 390a cools a plurality of components provided in the electrical equipment room 300 while flowing into the first blow fan 360, and by the first blow fan 360. The air is blown out and moved along the lower surface of the duct 308 to be discharged to the outside through an exhaust port (not shown) in front of the electrical equipment room 300.

In addition, the outside air sucked into the second intake port 380a may include the magnetron 340, the high pressure transformer 320, and the high pressure capacitor 330 on the side of the second blow fan 370 divided by the barrier 302. Cooling in turn, and is blown through the second blow fan 370 is discharged to the exhaust port in the front of the electric chamber 300.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications based on the present invention may be made by those skilled in the art within the above technical scope.

The electric chamber cooling structure of the electric oven according to the present invention as described above in detail, rearranges a plurality of parts provided in the electric chamber, partitions the first blow fan and the second blow fan as barriers, and thus the first suction port and the second suction fan. It is configured to efficiently cool the inside of the battlefield and the core parts of the battlefield with the outside air sucked through the inlet.

Therefore, the magnetron, the high pressure transformer, and the high pressure capacitor, which are the core components driven during the operation of the electric oven, are divided into barriers to change from the conventional indirect cooling method to the direct cooling method. That is, by moving the position of the conventional first blow fan from the center of the electrical equipment room rearward, and moving the second blow fan from the right to the left to partition the barrier, the core component provided in the electrical equipment room to the second blow fan After cooling, the remaining parts were configured to cool with the first blowpan.                     

Therefore, the cooling is effectively performed in a limited space in a narrow electrical room, thereby improving the cooling efficiency, and the cost of the component is expected to be reduced by not replacing the component due to the heat defect in the electrical room. .

As a result, it is possible to reduce the price of the parts used in the electric oven to increase the price competitiveness by reducing the overall price, thereby increasing the consumer's desire to buy.

Claims (4)

In the electric oven in which the electrical chamber is formed on the outer side of the cooking chamber, A suction port formed at one side of the electrical equipment room for suction of external air; A duct provided at one side of the electrical equipment room and discharging hot air inside the electrical equipment room to the outside; A first blow fan provided at one side of the electrical equipment room to forcibly blow air inside the electrical equipment room to the inside of the duct; A barrier formed to partition the inside of the electric compartment, and forming a separate flow path for cooling the high voltage generating component separately from the flow path formed by the duct; And a second blower fan provided at one side of the electrical equipment room and configured to forcibly blow external air to pass through the cooling area partitioned by the barrier. The electric chamber cooling structure of claim 1, wherein the barrier is formed to form one side of the duct. The electric chamber cooling structure of an electric oven according to claim 2, wherein a high voltage capacitor for generating a high voltage among the high voltage generating parts is mounted on one side of the barrier. 4. The electric compartment cooling structure of claim 3, wherein the second blower fan is mounted at one side of the barrier.

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