KR100678666B1 - Door cooling system for oven range - Google Patents

Abstract

The present invention relates to a cooling device for a door of an oven, wherein the door according to the present invention is arranged to be spaced apart from each other, the three pieces of glass, Windshield and rear glass on the rear side of the door A plurality of layers forming two spaces are formed between the intermediate glasses, and a flow path is formed between the glass forming the plurality of layers to allow air to pass through. Between the front glass and the middle glass is formed a first flow path forcibly cooling air is vented from the top of the door to the bottom by a cooling fan located in the upper side of the cooking chamber, and the external air naturally between the rear glass and the middle glass due to the pressure difference By forming a second flow path that is ventilated from the bottom of the door to the top to prevent the heat inside the cooking chamber out of the double can be sufficiently lowered the temperature of the front door.

Description

Door cooling system for oven range

1 is a longitudinal sectional view of the oven according to the present invention.

FIG. 2 is a perspective view illustrating a cooling fan and an induction duct of the oven of FIG. 1.

3 is an enlarged longitudinal sectional view of a part of the configuration of the oven door illustrated in FIG. 2.

Explanation of symbols on the main parts of the drawings

       30: door 33a: rear glass

33b: middle glass 33c: windshield

34: the first euro 35: the second euro

      36: outlet 37: inlet

      38: second compartment 39: first compartment

      40: cooking chamber 60: cooling fan

      70: induction duct 71: opening

The present invention relates to an oven, and more particularly to an oven capable of effectively cooling the door of the oven.

In general, the oven cooks food placed in the cooking chamber using electric heat or gas heat. When cooking food in such a oven, the interior of the cooking chamber is kept at a high temperature, so the door to open and close the cooking chamber is very hot. It will be heated.

Therefore, the oven should have a structure capable of cooling the door below a specified temperature for safety. In order to solve this problem, Japanese Patent Application Laid-Open No. 59-44528 has a single ventilation that allows air to be ventilated in the oven cooking chamber door. A technique of opening a furnace and forcibly drawing outside air by a cooling fan provided at an upper side of a cooking chamber to discharge the upper air from the top to the bottom of the door to cool the door is disclosed.

However, the present invention has a problem that the door is composed of a single ventilation path, the cooling air flowing into the door is received by the high temperature heat in the cooking chamber, the temperature is increased to sufficiently cool the door.

In addition, the Korea Utility Model Publication (Application No. Room-1996-022588) has two ventilation paths through which the outside air can be ventilated in the oven cooking room door, a cooler fan provided above the cooking room to forcibly suck the outside air, and the cooling An induction duct disposed together with the cooling fan is disclosed above the cooking chamber to discharge the cooling air forced by the fan to the front surface of the oven.

The induction duct is formed to have a small diameter so as to narrow the flow path toward the discharge port to increase the speed of the air discharged to the front upper portion of the door to form a low pressure portion, the high-pressure air inside the oven door flows to the low pressure portion, the outside air of the lower door Two ventilation paths provided in the door are respectively vented from the bottom to the top of the door to cool the door.

However, in the present invention, since the external air vented by the two ventilation paths provided in the door is simply vented from the lower end of the door to the upper end naturally by the pressure difference, the amount of air cooling the door is very small and the speed is also slow. There is a problem that the door cannot be sufficiently cooled.

 The present invention is to solve the above-mentioned problems of the prior art, the object of the present invention is to allow the flow of cooling air of sufficient flow rate through the cooking chamber door and at the same time the heat inside the oven cooking chamber to go out twice. It is to provide an oven to block the oven door effectively by blocking.

Oven oven according to the present invention for achieving this object, the cooking chamber for heating food, the door for opening and closing the cooking chamber, a cooling fan forcibly suctioning the outside air, the air forcedly sucked by the cooling fan In the oven having an induction duct leading to the door,

The door communicates with the induction duct to guide the flow of air passing through the induction duct, and is spaced apart from the first channel so that one end is in communication with the outside and the other end is in communication with the first channel. And a second flow passage for guiding air to flow along with the airflow of the first flow passage.

In addition, the first flow path is formed by a front glass provided on the front side of the door, and the intermediate glass spaced apart from the front glass by a predetermined distance, the second flow path is a rear glass installed on the intermediate glass and the rear side of the door It is characterized by being formed by.

In addition, a first partition plate is installed between the induction duct and the first passage to guide the air passing through the induction duct to the first passage.

In addition, the second flow passage is characterized in that the second partition plate for guiding the air flow in the second flow path accompanying the air flow of the first flow passage is provided.

In addition, the first partition plate is characterized in that one end is coupled to the upper end of the windshield and the other end is formed to be bent toward the rear of the door.

In addition, the second partition plate is characterized in that one end is coupled to the upper end of the windshield and the other end is formed to be extended toward the front of the door.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

Figure 1 shows a longitudinal cross-sectional view of the oven according to the present invention. As shown in the drawing, the oven according to the present invention has an outer case 10 having a box shape with an open front, and a box shape with an open front like the outer case 10, and is built in the outer case 10. The inner case 20 to be opened, the door 30 rotatably installed on the front of the inner case 20 to open and close the front open to the inner case 20, the door can be easily opened and closed on the outer upper end of the door. With a handle 31.

The inner case 20 is disposed inside the outer case 10 so as to be spaced apart from the outer case 10, and a cooking chamber 40 is provided in which food is placed and cooked therein, and an upper portion of the outer case 10 is provided. The control panel 11 provided with various buttons, switches, and display devices is arranged to control selection of cooking types, cooking time, and cooking process.

Inside the cooking chamber 40 The guide rail 42 which allows the rack 41 to be attached and detached easily, and the food mounted on the rack 41 are cooked by heating. A heater 43 is installed, and a convection fan 45 for distributing heat generated from the heater 43 on the rear outer side of the cooking chamber 40 and a motor 44 for providing rotational force to the convection fan. ) Is installed.

Figure 2 is a perspective view of the cooling fan and the induction duct located on the upper side of the cooking chamber of the oven according to the present invention. As shown in the drawing, an upper portion of the cooking chamber 40 is arranged to be partitioned from the cooking chamber 40, and a blowing chamber 50 for blowing cooling air to the door 3 to cool the door 30 is provided. In the outer case 10 in which the blowing chamber 50 is formed, a plurality of suction holes 51 through which the outside air is sucked by the cooling fan 60 to be described later are formed.

A cooling fan 60 for forcibly introducing external air into the blowing chamber 50; A motor (not shown) for transmitting a rotational force to the cooling fan , and an induction duct 70 for discharging the cooling air forced by the cooling fan 60 to the door is disposed on one side of the cooling fan.

The induction duct 70 has an opening 71 whose front surface is open to discharge the cooling air forced into the door 30 by the cooling fan 60. It is provided, and is inclined to narrow the flow path toward the opening 71 in order to increase the discharge speed of the cooling air.

FIG. 3 is an enlarged cross-sectional view showing the door internal structure shown in FIG. As shown in FIG. 3, the door 30 is coupled to the door frame 32 such that three pieces of glass are separated from each other by a predetermined distance, and formed on the side of the cooking chamber 30. Two flow paths are formed between the rear glass 33a and the windshield 33c formed on the front side of the door 30 by the intermediate glass 33b.

Between the windshield 33c and the middle glass 33b, cooling air forcibly induced by the cooling fan 60 is formed at the upper end of the door 30 through the opening 71 of the induction duct 70. Vented to the bottom A second channel 35 is formed between the first channel 34 and the rear glass 33a and the middle glass 33b to suck external air from the lower end of the door 30 to the upper end.

The door 30 is disposed at the upper end of the door 30 to block the cooling air discharged by the induction duct 70 from flowing into the second flow passage 35, and to separate the discharge into the first flow passage 34. The first partition plate 39 and the second partition plate 38 are formed at the upper end.

The second partition plate 38 smoothly flows the coupling portion 38a coupled to the upper end of the rear glass 33a and the external air that rises in the second flow passage 35 to the first flow passage 34. The inclined portion 38b bent inclined upwardly toward the front of the door 30 at the end of the coupling portion 38a and the cooling air discharged by the cooling fan 60 to the second flow passage 35. It is composed of a blocking portion (38c) is bent toward the front side of the door 30 at the end of the inclined portion 38b to block the flow into the middle glass.

The first partition plate 39 is a coupling portion (39a) is coupled to the inner top of the windshield (33c), the connecting portion (39b) bent toward the cooking chamber 40 side from the end of the coupling portion (39a), It consists of an induction part (39c) bent inclined downward toward the cooking chamber at the end of the connecting portion (39b) to guide the cooling air discharged from the cooling fan 60 to the first flow path (34).

An upper end of the first passage 34 is formed with an inlet (point B) of the first passage 34 through which cooling air discharged into the opening 71 of the induction duct 70 flows, and a lower end of the first passage 34 is formed. A discharge opening 36 is formed in which a bottom surface is opened so that the discharge is discharged to the outside of the door 30.

The lower end of the second flow path 35 is formed with an inlet opening 37 having a bottom surface open so that the outside air is sucked into the door 30, and the upper end of the second flow path 35 is moved from the bottom of the door 30 to the top. After the air is cooled and the door 30 is cooled, the intermediate glass 33b and the blocking portion 38c of the second partition plate 38 are separated by a predetermined distance so as to enter the inlet (point B) of the first flow path 34. It is installed to be spaced apart from the inlet (point B) of the first passage 34 communicates with the outlet (point A) of the second passage 35 is formed.

Next will be described the operation and effect of the oven door cooling apparatus according to an embodiment of the present invention configured as described above.

First, when the operating conditions of the control panel 11 are selected to use the oven range, and the power is applied, the cooling fan 60 is rotated by the driving of a motor (not shown), and by the rotational force of the cooling fan 60. Cooling air whose speed is increased by the induction duct 70 formed by the induction duct 70 and whose diameter is small toward the opening 71 is provided with the first compartment plate 39 formed on the upper side of the door 30. The second compartment plate 38 is vented to the first passage 34 formed in the front glass 33c and the intermediate glass 33b of the door 30 to cool the door 30 and is provided at the bottom of the door 30. It is discharged to the outside of the door 30 through the discharge port 36.

The cooling air discharged to the induction duct 70 passes through the induction duct 70 having a small diameter so as to narrow the flow path toward the rotational force of the cooling fan 60 and the opening 71 of the induction duct 70. Pressure difference because the flow rate at the point “B” which is the inlet of the first channel 34 is relatively faster than the point “A” which is the outlet of the second channel 35 because it is discharged to the inlet side of the first channel 34. Air flows naturally from the “A” point to the “B” point, and by this flow, external cool air flows into the door through the suction port 37 provided at the bottom of the second flow path 35. Cool the door.

In order to cool the door as described above, a sufficient amount of cooling air is forcibly blown from the outside to the first flow path of the door by a cooling fan located at the upper part of the cooking chamber, and the second flow path of the door is naturally The flow of air is generated to block the high temperature heat of the cooking chamber in a double, thereby effectively lowering the temperature of the front door.

As described above, in the oven cooling apparatus of the oven according to the present invention, three pieces of glass are installed on the door to be spaced apart from each other to form a first flow path and a second flow path, thereby forcibly cooling air to the first flow path by a cooling fan. As a result, a sufficient amount of cooling air is vented at a very high speed to cool the door outer glass, and two air layers are formed to naturally ventilate the outside air to the second flow passage due to the pressure difference to double the high temperature heat in the cooking chamber. The structure allows the door to be cooled effectively.

Claims (6)

In an oven comprising a cooking chamber for heating food, a door for opening and closing the cooking chamber, a cooling fan forcibly injecting external air, and an induction duct for inducing air drawn by the cooling fan to the door. , The door communicates with the induction duct to guide the flow of air passing through the induction duct, and the air is provided between the induction duct and the first passage and passes through the induction duct to the first passage. A first partition plate for guiding the first flow path, spaced apart from the first flow path, one end communicates with the outside, and the other end communicates with the first flow path, so that another external air flows along with the air flow of the first flow path. And a second partition plate installed in the second channel and guiding the air of the second channel to flow along with the air flow of the first channel. The method of claim 1, The first flow path is formed by a front glass provided on the front side of the door, and the middle glass spaced apart from the front glass by a predetermined distance, and the second flow path is formed by the rear glass installed on the rear surface of the middle glass and the door. Oven to be formed. delete delete The method of claim 1, The first partition plate is oven oven, characterized in that one end is coupled to the top of the windshield and the other end is formed by bending toward the rear of the door. The method of claim 1, The second compartment plate is oven oven, characterized in that one end is coupled to the upper end of the rear glass and the other end is formed to be bent toward the front of the door.

Images