KR20110054978A - Cooking appliance - Google Patents

Abstract

PURPOSE: A cooking appliance is provided to prevent damage to an ignition unit by the flame of an oven burner by locating the on the upper part of the oven burner. CONSTITUTION: A cooker comprises a cavity(210), a burner, a reflector, and an ignition part. The cavity forms a cooking chamber(211). The burner locates in cavity. The burner generates flame by combusting gas. The reflector locates in the upward of the burner. The reflector reflects the heat from the burner to the cavity. The ignition part locates in the upward of the oven burner. The burner forms a plurality of first gas holes through which gas passes. The gas passing through each gas hole is lighted by the ignition part.

Description

Cooking appliance

This embodiment relates to a cooking appliance.

Cooking equipment is a device for heating food using a heating source. As the heating source, for example, a burner that generates heat by burning gas may be used.

The gas introduced into the burner is ignited and burned by the ignition unit, and the burned gas is changed into a flame. And cooking of food is performed by the heat by the said flame.

An object of the present embodiment is to provide a cooking apparatus in which the ignition of the gas is made stable, the amount of unburned gas is reduced, and the ignition delay is prevented.

In one embodiment, a cooking apparatus includes: a cavity forming a cooking chamber; A burner located in the cooking chamber and generating a flame by burning gas; A reflector positioned above the burner and reflecting heat generated from the burner to the cooking chamber; And an ignition unit positioned above the oven burner, the ignition unit including an ignition unit positioned above the reflector, wherein the burner is provided with a plurality of first gas holes through which gas passes, and the reflector includes a plurality of ignition units. A second gas hole is formed at a position corresponding to the first gas hole, and the gas passing through each gas hole is ignited by the ignition unit.

According to the proposed embodiment, as the ignition unit is positioned above the oven burner, the ignition unit may be prevented from being damaged by the flame generated from the oven burner.

In addition, the sum of the lengths or widths of the plurality of gas holes formed in the oven burner is smaller than the width of the cover surface of the reflector, and the sum of the lengths or widths of the plurality of gas holes formed in the reflector is smaller than the width of the cover surface of the reflector. In this way, the amount of unburned gas is minimized and the ignition delay can be prevented.

Hereinafter, exemplary embodiments will be described with reference to the accompanying drawings.

1 is a perspective view of a cooking appliance according to a first embodiment.

Referring to FIG. 1, in the cooking appliance 1 according to the present embodiment, a main body 10 including a cooktop unit 100, an oven unit 200, a drawer unit 300, and a control unit 400 may be provided. Included.

The cooktop unit 100 is disposed at the uppermost side of the main body 10, the oven unit 200 is disposed below the cooktop unit 100, and the drawer unit 300 is the oven unit ( 200).

The control unit 400 is provided at the rear end of the upper surface of the main body 10. The control unit 400 is located behind the cooktop unit 100.

The cooktop part 100 includes a plurality of cooktop burners 110. The cooktop burner 110 directly heats a container in which food is contained in a flame generated by burning a gas.

In front of the cooktop 100, a plurality of knobs 120 are provided. The knob 120 controls the opening or closing of a valve (not shown) for controlling the supply and supply of gas to the cooktop burner 110.

The oven unit 200 includes a cavity 210 forming a cooking chamber 211 for cooking food. An interior of the cavity 210 includes an oven burner 500 for heating food contained in the cooking chamber 211 and a reflector 600 provided above the oven burner 500.

Of course, although not shown, an additional heating source may be further provided inside or outside the cavity 210 for heating food contained in the cooking chamber 211 in addition to the oven burner 500.

The cooking chamber 211 is opened and closed by a door 220. The door 220 opens and closes the cooking chamber 211 in a pull-down manner in which an upper end rotates up and down about its lower end. The front surface of the door 220 is provided with a handle 221 that the user grips by hand for the rotation of the door 220.

The drawer unit 300 allows the container in which food is to be kept at a predetermined temperature. The drawer unit 300 includes a drawer 310 for receiving a container.

The control unit 400 may operate at least one of an operation signal for operating the cooking appliance 1, more specifically, the cooktop unit 100, the oven unit 200, and the drawer unit 300. Receive an operation signal for In addition, the control unit 400 displays various information about the operation of the cooking appliance 1 to the outside.

The oven burner 500 is disposed above the cavity 210. The oven burner 500 directly radiates food in the cooking chamber 211 by a flame generated by burning gas.

2 is a perspective view of an oven burner in which a reflector is coupled according to a first embodiment, FIG. 3 is a perspective view of a state in which the reflector and the oven burner are separated according to the first embodiment, and FIG. 4 is an oven according to the first embodiment. Bottom view of the burner.

1 to 4, the reflector 600 and the ignition unit 700 are coupled to an upper side of the oven burner 500 according to the present embodiment.

The oven burner 500 includes a supply unit 510 for supplying a mixed gas of gas and air, a plurality of combustion units 530, 550, and 570, and a mixed gas supplied from the supply unit 510. A distribution unit 520 for distributing to the combustion units 530, 550, and 570, and a communication unit 590 for communicating the plurality of combustion units 530, 550, and 570 are included.

The supply unit 510 serves to deliver the gas supplied from the nozzle (not shown) and the air introduced together in the supply process to the distribution unit 520.

In addition, an end portion of the supply part 510 may penetrate the sidewall of the cavity 210. Unlike this, a part of the nozzle may be aligned with an end of the supply part 510 through the side wall of the cavity 210.

Gas and air introduced into the supply unit 510 are mixed while flowing inside the supply unit 510, and are delivered to the distribution unit 520 in the form of mixed gas.

The plurality of combustion units 530, 550, and 570 include a first combustion unit 530, a second combustion unit 550, and a third combustion unit 570.

The first combustion unit 530 is formed in a straight line shape and extends in the front-rear direction of the cavity 210 in a state in which the oven burner 500 is disposed inside the cavity 210.

The second combustion unit 550 and the third combustion unit 570 may include auxiliary parts 552 and 572 extending substantially perpendicular to the first combustion part 530 in the distribution part 520, and the auxiliary part. Main parts 554 and 574 that are bent at 552 and 572 and substantially parallel to the first combustion unit 530 are included. Accordingly, the main part 554 of the second combustion part 550 is located at one side of the first combustion part 530, and the third combustion is located at the other side of the first combustion part 530. The main part 574 of the part 570 is located.

The supply part 510 may be disposed to be substantially parallel to each of the auxiliary parts 552 and 572, and a connection part with the distribution part 520 may be bent. Thus, the supply unit 510 extends from the distribution unit 520 to the second combustion unit 550 or the third combustion unit 570. In FIG. 4, for example, the supply unit 510 extends toward the third combustion unit 570.

Therefore, gas and air flowing in the supply unit 510 are diverted at the connection portion between the distribution unit 520 and the supply unit 510 and flow to the distribution unit 520.

The communicating unit 590 connects the end portions of the respective combustion units 530, 550, and 570 so that pressure balancing within each of the combustion units 530, 550, and 570 is achieved. When the pressure balance between the combustion units is made, deterioration of the combustion performance in the specific combustion unit can be prevented.

Each of the combustion units 530, 550, and 570 is provided with a plurality of flame holes 526 for generating a flame. In detail, a plurality of salt holes 526 are formed at both sides of the first combustion unit 530. Therefore, flames may occur on both sides of the first combustion unit 530.

A plurality of salt holes 526 are formed at one side of the main part 554 of the second combustion part 550. One side of the main part 554 means a part facing the first combustion part 530. A plurality of salt holes 526 are formed at one side of the main part 574 of the third combustion part 570. One side of the main part 574 means a part facing the first combustion part 530. That is, the flame is generated only at one side of each of the main parts 554 and 574.

Meanwhile, the reflector 600 is disposed between the ceiling surface of the cavity 210 and the oven burner 500. In addition, the reflector 600 may be coupled to the upper surface of the oven burner 500 by, for example, welding.

The reflector 600 reflects the heat of the flame generated from the oven burner 500 toward the food inside of the cooking chamber 211. In addition, the reflector 600, the combustion gas generated in the process of burning the gas in the oven burner 500 above the reflector 600, that is, the ceiling surface of the cooking chamber 211 and the reflector 600 Flow into the space between the upper surfaces of the

The reflector 600 includes a reflector 610 in which an exhaust part 620 is formed, a cover part 640 covering the exhaust part 620, and a fixing flange 630. The reflection unit 610 includes a plurality of first cover surfaces 611, inclined surfaces 613, and second cover surfaces 615.

The plurality of first cover surfaces 611 are formed to have a predetermined width W from left and right, and are located directly above the respective combustion units 530, 550, and 570. The number of the first cover surfaces 611 is provided in the same number as the number of the combustion units. The inclined surface 613 extends upwardly at a predetermined angle from both ends of the first cover surface 611.

The second cover surface 615 is positioned between the inclined surfaces 613 adjacent to each other to connect ends of the inclined surfaces 613. In the space between the second cover surface 615 and the two inclined surfaces 613 adjacent to the second cover surface 615, combustion gas generated in the process of burning the gas in the oven burner 500 is included. Are concentrated.

The fixing flanges 630 are provided at front and rear ends of both side ends of the upper surface of the reflector 610. The fixing flange 630 is for fixing the reflector 610 to the ceiling surface of the cooking chamber 211. The fixed flange 630 is formed by substantially cutting the front and rear portions of the first cover surface 611 and the inclined surface 613 and bending upward.

The exhaust unit 620 discharges the combustion gas generated in the process of burning the gas in the oven burner 500 to the space between the ceiling surface of the cooking chamber 211 and the reflecting unit 610. The exhaust part 620 is formed on the second cover surface 615.

The cover part 640 covers the exhaust part 620 at a position spaced apart from the exhaust part 620. In addition, the cover part 640 may be coupled to the second cover surface 615. The cover 640 guides the combustion gas to spread evenly into the space between the upper surface of the reflector 600 and the ceiling surface of the cooking chamber 211.

The cover part 640 is located directly above the exhaust part 620.

Therefore, the heat of the flame generated by the oven burner 500 is reflected by the cover part 640 downward, that is, into the cooking chamber 211. In addition, the combustion gas discharged through the exhaust part 620 is evenly spread in front and rear and / or left and right by the cover part 640.

The ignition unit 700 may be fixed to an upper surface of the oven burner 500 by a fixing member 710. When the ignition unit 700 is located above the oven burner 500, the ignition unit 700 may be prevented from being damaged by the flame generated from the oven burner 700.

The fixing member 710 includes a support part 712 for supporting the ignition unit 700, a coupling part 714 extending from the support part 712, and coupled to an upper surface of the oven burner 500. . In the present embodiment, the coupling part 714 may be welded to the upper surface of the oven burner 500 as an example, but the coupling method of the coupling part 714 is not limited.

The ignition unit 700 includes an ignition unit 702. When the ignition unit 700 is operated, the ignition unit 702 is heated to a high temperature, and when gas comes into contact with the ignition unit 702, the gas is ignited. Since the ignition unit 700 may be a known structure, a detailed description thereof will be omitted.

The ignition portion 702 is located above the first cover surface 611. In addition, the ignition unit 702 is spaced apart from an upper surface of the first cover surface 611.

The first cover surface 611 on which the ignition unit 702 is located may be a cover surface located on an upper surface of the first combustion unit 530.

In order to burn the gas of the oven burner 500 by the ignition unit 702, a plurality of first gas holes 531 and 532 are formed in the first combustion unit 530 to discharge the gas. The first cover surface 611 has a plurality of second gas holes 641 and 642 through which the gas discharged through the plurality of first gas holes passes.

The number of the first gas holes and the second gas holes is not limited, and FIG. 3 shows two first gas holes and two second gas holes, for example.

The plurality of first gas holes 531 and 532 are spaced apart from each other. An imaginary line connecting the plurality of first gas holes 531 and 532 may be inclined with a flow direction of the gas inside the first combustion unit 530. In FIG. 3, the imaginary line intersects the gas flow direction inside the first combustion unit.

When the virtual line crosses the gas flow direction inside the first combustion unit 530, the timing of passage of the first gas hole of the gas is prevented from being changed, so that ignition can be performed smoothly.

The plurality of second gas holes 641 and 642 are spaced apart from each other, and are positioned directly above the plurality of first gas holes 531 and 532. The plurality of second gas holes 641 and 642 are positioned adjacent to the ignition unit 702 such that the gas passing through each gas hole may contact the ignition unit 702.

In addition, an imaginary line connecting the plurality of second gas holes 641 and 642 may be inclined with a flow direction of the gas inside the first combustion unit 530. In FIG. 3, the imaginary line intersects the gas flow direction inside the first combustion unit.

The size of the second gas holes 641 and 642 may be the same as that of the first gas holes 531 and 532.

In the present embodiment, each gas hole may be formed in various shapes such as circular, non-circular, or polygonal, and the length or width of each gas hole may be smaller than the width W of the second cover surface 611. Can be.

The length or width of each gas hole means a diameter in the case of a circle, a length of a long side in the case of an ellipse, and a length of the longest side in the case of a polygon.

Preferably, the sum of the lengths or widths of the plurality of first gas holes 531 and 532 is smaller than the width W of the first cover surface 611, and the plurality of first gas holes 641 and 642. ) Or the sum of the lengths or widths may be smaller than the width W of the first cover surface 611.

As the size of each gas hole increases, the amount of gas passing through each gas hole increases. When a large amount of gas passes through each of the gas holes, the amount of unburned gas is increased, resulting in an increase in the amount of unburned gas CO, and ignition may be delayed.

The smaller the size of each gas hole, the better. However, when the size of each gas hole is minute, gas may not flow smoothly.

Therefore, in the present embodiment, a plurality of first gas holes 531 and 532 are formed in the first combustion unit 530 so that the amount of unburned gas CO is reduced while ensuring the amount of gas to be ignited. In addition, a plurality of second gas holes 641 and 642 may be formed in the reflector.

In particular, the sum of the lengths or widths of the plurality of first gas holes 531 and 532 is smaller than the width W of the first cover surface 611, and the sum of the plurality of first gas holes 641 and 642 may be reduced. The sum of the lengths or widths is made smaller than the width W of the first cover surface 611.

In this embodiment, the installation position of the ignition unit 700 may vary, and the formation position of each gas hole may vary according to the installation position of the ignition unit 700. However, the ignition unit of the ignition unit is preferably located above the first cover surface for easy contact with the gas.

Hereinafter, the operation of the cooking appliance will be described.

First, a user manipulates the control unit 400 to input an operation signal for cooking food using the oven unit 200. When the operation signal is input to the control unit 400, the oven burner 500 operates to cook food in the cooking chamber 211.

In detail, gas and air are supplied to the distribution unit 520 through the supply unit 510. Gas and air supplied to the distribution unit 520 are distributed to each of the combustion units 530, 550, and 570. A portion of the gas and air supplied to the first combustion unit 530 pass through the plurality of first gas holes 531 and 532 and then pass through the plurality of second gas holes 641 and 642. .

Gas and air passing through the plurality of second gas holes 641 and 642 are ignited in contact with the ignition unit 702. When the gas and air are ignited, the gas and air of each of the combustion units are burned to generate a flame.

Then, food inside the cooking chamber 211 is cooked by the flame and heat generated by the oven burner 500. At this time, the heat of the flame generated by the oven burner 500 is reflected by the reflector 600 toward the food inside the cooking chamber 211.

On the other hand, the combustion gas generated in the process of burning the gas in the oven burner 500 is concentrated through the reflector 600 to the space between the ceiling surface of the cooking chamber 211 and the reflector 600. More specifically, the combustion gas is concentrated in the space between the second cover surface 615 of the reflector 600 and two inclined surfaces 613 adjacent to the second cover surface 615.

The combustion gas concentrated in the space between the second cover surface 615 and the inclined surface 613 is upwardly through the exhaust portion 620, that is, the ceiling surface of the cooking chamber 211 and the reflection portion 610. Flows into the space between them.

5 is a perspective view of the oven burner and the reflector according to the second embodiment.

This embodiment is the same as that of the first embodiment in other parts, except that there is a difference in the shape of the oven burner and the reflector. Therefore, hereinafter, only characteristic parts of the embodiment will be described.

Referring to FIG. 5, the oven burner 800 of the present embodiment may be formed in a bar type. The oven burner 800 may have a vertical cross section as an example, but is not limited thereto. For example, the vertical cross section of the oven burner 800 may be formed of an ellipse or a polygon.

An upper side of the oven burner 800 is provided with a reflector 900 and an ignition unit 700. The reflector 900 includes a cover surface 910 located directly above the oven burner 800 and an inclined surface 920 extending upwardly inclined from both sides of the cover surface 910.

A plurality of first gas holes 801 and 802 are formed in the oven burner 800, and a plurality of second gas holes 911 and 912 are formed in the cover surface 910.

Since the positions and sizes of the gas holes are the same as those of the first embodiment, detailed description thereof will be omitted.

On the other hand, the ignition unit 700 is supported by a fixing member 730 installed in the oven burner (800). An ignition unit 702 is included in the ignition unit 700, and the ignition unit 702 is located above the cover surface 910. The ignition unit 702 is disposed at a position adjacent to the plurality of second gas holes 911 and 912.

1 is a perspective view of a cooking appliance according to a first embodiment;

Figure 2 is a perspective view of the oven burner coupled to the reflector according to the first embodiment.

3 is a perspective view of a state where the reflector and the oven burner according to the first embodiment are separated.

4 is a bottom view of the oven burner according to the first embodiment.

5 is a perspective view of the oven burner and the reflector according to the second embodiment.

Claims (6)

A cavity forming a cooking chamber; A burner located in the cooking chamber and generating a flame by burning gas; A reflector positioned above the burner and reflecting heat generated from the burner to the cooking chamber; And An ignition unit positioned above the oven burner and including an ignition unit positioned above the reflector, The burner is formed with a plurality of first gas holes through which gas passes, The reflector is formed with a second gas hole formed at a position corresponding to the plurality of first gas holes, And a gas passing through the gas holes is ignited by the ignition unit. The method of claim 1, The burner includes a combustion unit in which a flame is generated by the combustion of gas, The reflector includes a cover surface covering the combustion unit, The plurality of first gas holes are formed in the combustion unit, The plurality of second gas holes are formed on the cover surface. The method of claim 2, The sum of the lengths or widths of the plurality of first gas holes is smaller than the width of the connecting surface. The method of claim 2, The sum of the lengths or widths of the plurality of second gas holes is smaller than the width of the connecting surface. The method of claim 2, And a virtual line extending the plurality of first gas holes or a virtual line connecting the plurality of second gas holes cross the gas flow direction in the combustion unit. The method of claim 1, And the ignition unit is supported by a fixing member installed on the oven burner.

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