KR100717437B1 - Cooling structure of electric oven's door - Google Patents

Abstract

The present invention relates to an electric oven, and more particularly, to a door cooling structure of the electric oven.

The door cooling structure of the electric oven according to the present invention is a cavity; door; A first cooling channel forming unit disposed inside the door to form a first cooling channel for cooling the door; And a second cooling channel forming unit disposed on an upper portion of the door to form a second cooling channel that cools a portion of the door by external air.

According to the door cooling structure of the electric oven according to the present invention, there is an advantage that the cooling efficiency of the door can be increased.

Door, Cooling Channel, Slot, Slope

Description

Cooling structure of electric oven's door

1 is a perspective view showing an electric oven to which a door cooling structure according to the present invention is applied.

Figure 2 is a perspective view showing a cross section of the door cooling structure according to the present invention.

3 is a vertical sectional view showing a door cooling structure according to the present invention.

4 is an enlarged view of a portion A shown in FIG.

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

3: cavity 20: duct

21: duct lower passage 22: duct upper passage

30: blower fan

100: door 110: door frame

113: outlet 120: door panel

130: inlet 140: slot

The present invention relates to an electric oven, and more particularly, to a door cooling structure of the electric oven.

In general, the electric oven is a device capable of performing cooking by applying heat generated from a heater to food stored in a cavity formed therein. The cavity may be opened and closed by a door rotatably installed in front of the electric oven. The door is provided with a door frame constituting the skeleton, and a door panel or the like is attached to the door frame.

On the other hand, in the conventional electric oven, a separate cooling passage is formed in the door or the like to cool the door. The air flows from the outside of the electric oven in the cooling passage as described above while cooling the door and the like. As an example of the cooling passage of such an electric oven, outside air is sucked in at the lower end of the door, flows along the door panel, and then out of the electric oven through an outlet formed at the top of the door via the top of the cavity. There is a discharge channel.

However, in the door cooling structure of the conventional electric oven, while performing the cooling function and the hot air discharged through the outlet formed in the door, it is possible to reheat the door. Therefore, there is a disadvantage that the cooling efficiency of the door is lowered.

In addition, in the door cooling structure of the conventional electric oven, the cooling of the door panel or the like is mainly used, and the cooling structure for heat transferred from the inside of the cavity to the door frame was not properly formed. Therefore, the door is heated by the heat transferred to the door frame, the cooling efficiency of the door is lowered, there is a disadvantage that the safety of the user is lowered.

An object of the present invention is to provide a door cooling structure of an electric oven, which can improve the cooling structure of the door of the electric oven and increase its cooling efficiency.

The door cooling structure of the electric oven according to the present invention includes a cavity which is a cooking space of food; A door that opens and closes the cavity; A first cooling channel forming unit disposed inside the door to form a first cooling channel for cooling the door; And a second cooling channel forming unit disposed on an upper portion of the door to form a second cooling channel that cools a portion of the door by external air.

According to the door cooling structure of the electric oven according to the present invention, by the outside air introduced through the slot formed in the upper door, it is possible to block the hot air passing through the duct to the door frame. Therefore, the phenomenon in which the door frame is heated by the hot air is prevented, and the cooling efficiency of the door can be increased.

In addition, according to the door cooling structure, the outside air introduced through the slot can directly cool the door frame. Thus, the door frame that can be heated by the heat transferred from the cavity is cooled, so that the cooling efficiency of the door can be increased.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the spirit of the present invention is not limited to the embodiments presented, and other embodiments included within the scope of the inventive concept and other inventions can be easily added by adding, changing, or deleting other elements. I can suggest.

1 is a perspective view showing an electric oven to which a door cooling structure according to the present invention is applied.

Referring to FIG. 1, the electric oven 1 includes a door 100 mounted and opened at a front part, and a cavity 3 opened and closed by the door 100. The cavity 3 is a cooking space of food. The electric oven 1 is provided with a convection heater and a fan 4 disposed on the rear surface of the cavity 3 and acting on the cavity 3.

In addition, at least one rack guide 6 may be formed at both sides of the cavity 3, and at least one rack 7 may be fitted to the rack guide 6. In detail, the rack 7 is a portion on which a container containing food is placed. The rack 7 may be guided by the rack guide 6 and may be transported in the front and rear direction inside the cavity 3.

In addition, a lower portion of the cavity 3 includes a bake heater (not shown) that serves as a heat source during cooking, and a double bottom 5 coupled to the upper portion of the bake heater. In detail, the double bottom 5 prevents the bake heater from being exposed to the outside during cooking. Therefore, the risk that the bake heater is exposed and the user is injured may be prevented.

Meanwhile, the electric oven 1 includes a cook top 8 formed on the top, at least one cook top heater 9 formed on the cook top 8, and the cook top 8. The operation panel 10 formed in the back part of the is included. In detail, the cook top heater 9 converts electrical energy into thermal energy during operation to supply heat to a container containing food placed on the top. In addition, various operation buttons and the like are positioned on the operation panel 10 so that the operation of each part of the electric oven 1 can be operated from the outside.

Figure 2 is a perspective view showing a cross section of the door cooling structure according to the present invention, Figure 3 is a vertical sectional view showing a door cooling structure according to the present invention, Figure 4 is an enlarged view of the portion A shown in FIG.

2 to 4 together, the door 100 is installed in the front of the electric oven (1), the portion to open and close the cavity (3). In detail, the lower side of the door 100 is hinged with the front lower side of the electric oven 1 and rotated at a predetermined angle to open and close the cavity 3.

The door 100 includes a door frame 110 serving as a skeleton thereof, and a plurality of door panels 120 supported by the door frame 110. The door frame 110 is made of a material having a predetermined rigidity, and supports the door panel 120 and is capable of withstanding the pressure inside the cavity 3. The door panel 120 may be made of glass.

The door panel 120 includes a first door panel 121, a second door panel 122, a third door panel 123, and a fourth door panel 124 in this embodiment. The first to fourth door panels 121, 122, 123, and 124 as described above are installed to be spaced apart from each other at predetermined intervals. Cooling flow paths of the door 100 may be formed by the door panels 121, 122, 123, and 124 spaced apart as described above.

In detail, a suction port 130 is formed at a lower end of the door panel 120 and the door frame 110 to allow a passage of external air. On the upper side of the suction port 130, a space between the second door panel 122 and the third door panel 123, and between the third door panel 123 and the fourth door panel 124 The suction passage 131 is formed in the space. The suction passage 131 is a portion for cooling the door 100 while the air sucked through the suction port 130 flows.

In addition, a sealing member 125 is installed between the first door panel 121 and the second door panel 122 along its periphery. The sealing member 125 seals between the first door panel 121 and the second door panel 122. Then, the enclosed space between the first door panel 121 and the second door panel 122 may be a heat insulating layer for the cavity 3. By the heat insulation effect as described above, the heat loss in the cavity 3 is reduced, the thermal efficiency of the electric oven (1) can be increased.

On the other hand, the duct 20 is formed on the upper portion of the cavity (3). The duct 20 is a portion through which air passing through the suction passage 131 flows in and out. In detail, the duct 20 includes a duct lower surface portion 23 installed close to the cavity 3, a duct upper surface portion 25 forming an upper surface of the duct 20, and the duct lower surface portion 23. And a flow path separation part 24 formed between the upper surface part 25 of the duct. The space formed by the duct lower surface portion 23 and the flow path separating portion 24 becomes a duct lower flow passage 21, and the space formed by the flow path separating portion 24 and the duct upper surface portion 25. Becomes the duct upper flow passage 22. The duct lower passage 21 is a portion through which air passing through the suction passage 131 flows, and the duct upper passage 22 is a portion through which air passing through the duct lower passage 21 flows. Air flows into the duct 20 through the upper and lower flow passages 22 and 21 as described above, and is discharged to the outside of the duct 20.

The inflow and outflow to the duct 20 as described above may be made by the flow force generated by the blowing fan 30 installed in the rear portion of the duct 20. The flow force by the blower fan 30 sequentially affects the suction channel 131 and the suction port 130, and thus the suction port 130, the suction channel 131, and the duct 20. To form a sequential air flow leading to

On the other hand, the air passing through the outlet 113 of the duct 20 is discharged to the upper portion of the door frame 110 to the outside. Here, the air passage consisting of the suction port 130, the suction flow path 131, the duct lower flow passage 21, the duct upper flow passage 22, and the discharge port 113 is formed to the door 100 It may be defined as one cooling passage. The peripheral articles forming the first cooling channel may be defined as a first cooling channel forming unit.

In addition, a slot 140 is formed on the top surface of the door frame 110 to form another air flow that is distinct from the air flow passing through the duct 20. Preferably, the slot 140 has a shape in which the upper surface of the door frame 110 is penetrated to a predetermined length.

Outside air is sucked through the slot 140 formed as described above to cool the upper portion of the door 100. In detail, the door frame 110 is heated by the heat transmitted from the cavity 3, which is difficult to cool by the air passing through the suction passage 131 and the duct 20. As in the present embodiment, when the slot 140 is formed, external air introduced through the slot 140 may cool the door frame 110. Therefore, the door frame 110 is cooled, so that the cooling efficiency of the door 100 may be increased.

In addition, the outside air introduced through the slot 140 prevents the air passing through the duct 20 from heating the door frame 110. In detail, the air passing through the duct 20 absorbs heat while passing through the suction passage 131 and the duct 20 and is in a high temperature state. As the air is discharged to the outlet 113 of the duct 20, the door frame 110 may be heated. In the present embodiment, the outside air introduced through the slot 140 prevents hot air passing through the duct 20 from directly contacting the door frame 110. Therefore, the phenomenon in which the door frame 110 is heated by the hot air is prevented, and the door frame 110 may be cooled. Therefore, the cooling efficiency of the door 100 can be increased. Here, the air flow path formed by the slot 140 may be defined as a second cooling flow path for the door 100. In addition, peripheral articles forming the second cooling channel may be defined as a second cooling channel forming unit.

On the other hand, the inclined surface 40 inclined at a predetermined angle is formed at the distal end of the duct 20. The inclined surface 40 is a portion capable of guiding air passing through the duct upper flow passage 22. By the formation of the inclined surface 40 as described above, the direction of the air passing through the outlet 113 of the duct 20 can be controlled. Therefore, by adjusting the angle of the inclined surface 40, the hot air passing through the outlet 113 of the duct 20 can be guided by the inclined surface 40, the hot air is the door frame The phenomenon of heating 110 can be reduced. Therefore, the door frame 110 may be cooled, and thus the cooling efficiency of the door 100 may be increased.

The operation of the door cooling structure of the electric oven according to the present invention configured as described above will be described.

First, when power is applied, the blowing fan 30 rotates to generate a flow force of air. Then, the outside air is introduced through the inlet 130 of the lower end of the door 100 by the flow force.

The outside air introduced as described above cools the door panel 120 and the door frame 110 while passing through the suction passage 131. The air passing through the suction passage 131 may cool the upper portion of the cavity 3 while passing through the lower duct passage 21.

Air passing through the duct lower flow passage 21 passes through the blower fan 30 and passes through the duct upper flow passage 22. Air passing through the duct upper flow passage 22 is discharged to the outside through the outlet 113 of the duct 20. In this case, the air passing through the duct upper flow passage 22 is in a high temperature state, and may be guided by the inclined surface 40 so as not to heat the door frame 110.

As described above, the air discharged through the outlet 113 of the duct 20 may be blocked from contacting the door frame 110 by the external air introduced through the slot 140. Therefore, the phenomenon in which the door frame 110 is heated by the hot air can be prevented. In addition, the outside air introduced through the slot 140 cools the door frame 110, which may be heated by the heat transferred from the cavity 3.

On the other hand, when the air discharged through the outlet 113 of the duct 20 as described above is discharged to the outside, the air introduced through the slot 140 is also introduced into the duct 20 is the inlet 130 With the air passing through it may be discharged to the outlet 113.

According to the door cooling structure of the electric oven according to the present invention configured as described above, it is possible to block the hot air passing through the duct to the door frame by the outside air introduced through the slot formed in the upper door. Therefore, the phenomenon in which the door frame is heated by the hot air is prevented, and thus the cooling efficiency of the door can be increased.

In addition, according to the door cooling structure, the outside air introduced through the slot can directly cool the door frame. Therefore, the door frame which can be heated by the heat transferred from the cavity is cooled, so that the cooling efficiency of the door can be increased.

In addition, according to the door cooling structure, the inclined surface is formed at the distal end of the duct, it is possible to guide the hot air flowing out of the duct. Therefore, by adjusting the inclined surface, since the hot air can be controlled not to heat the door frame, there is an effect that the cooling efficiency of the door can be increased.

In addition, by increasing the cooling efficiency of the door by the door cooling structure, there is an effect that the safety of the user of the electric oven can be increased.

Moreover, according to the said door cooling structure, between some panel which faced among the door panels is sealed, and it can function as a heat insulation layer. Therefore, the heat loss inside the cavity can be prevented, there is an effect that the thermal efficiency of the electric oven can be increased.

Claims (7)

A cavity, which is a cooking space of food; A door that opens and closes the cavity; A first cooling channel forming unit disposed inside the door to form a first cooling channel for cooling the door; And And a second cooling flow path forming part disposed on the door and forming a second cooling flow path for cooling a portion of the door by external air. The method of claim 1, And the second cooling channel forming unit is a slot formed in the door. The method of claim 1, The door has a door frame, and the second cooling flow path forming portion forms a cooling flow path for cooling the door frame. The method of claim 1, And said first cooling passage forming portion and said second cooling passage forming portion have respective air inlets independent of each other. The method of claim 1, The door has a shape in which a plurality of panels are arranged to be spaced apart at a predetermined interval, the door cooling structure of the electric oven, characterized in that the space between at least two or more facing panels of the plurality of panels forms a sealed space. The method of claim 5, The door cooling structure of the electric oven, characterized in that the panel adjacent to the cavity of the plurality of panels and the panel facing them form a closed space. The method of claim 1, And an inclined surface formed at an end of the first cooling channel forming unit to determine a discharge direction of air flowing along the first cooling channel.

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