US20110186034A1

US20110186034A1 - Cooking Appliance

Info

Publication number: US20110186034A1
Application number: US13/056,222
Authority: US
Inventors: Yang-Ho Kim; Jung-Wan Ryu; Dae-Bong Yang; Yong-Ki Jeong; Jae-Bum Lim; Young-soo Kim; Dae-Rae Lee
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2008-07-28
Filing date: 2009-07-28
Publication date: 2011-08-04
Also published as: WO2010013932A3; KR20100012244A; WO2010013932A2; KR101067984B1

Abstract

Provided is a cooker. There is provided the cooker including: a cavity including a cooking chamber; and a burner disposed in the cavity, receiving a mixed gas of a gas and air, and generating a flame by burning the mixed gas, wherein the burner includes a supplier supplying the mixed gas of the gas and air and a combustor connected with the supplier, receiving the mixed gas from the supplier, and including a plurality of flame holes, and an interval between ends of adjacent flame holes is smaller than an the interval between other portions.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims priority under 35 U.S.C. 118B and 35 U.S.C. 365 to Korean Patent Application No. 10-2008-0073538(filed on Jul. 28, 2008), which is hereby incorporated by reference in its entirety.

BACKGROUND OF THE INVENTION

1. Field of the Invention
The present invention relates to a cooker.
2. Description of the Related Art
A cooker is an appliance cooking a cooking food by using a heat as a heat source. The heat source may include a heater generating a heat using an electric resistance and a burner generating a heat using a gas.
The cooker includes a cavity having a cooking chamber. In addition, the heat source heats the cooking food housed in the cavity. At this time, a cooked state of the cooking food varies depending on a uniform or ununiform heating of the cooking food.

SUMMARY OF THE INVENTION

The present invention has been made in an effort to provide a cooker having advantages of heating uniformly a cooking food and shifting easily a fire between flame holes.
An exemplary embodiment of the present invention provides a cooker including: a cavity including a cooking chamber; and a burner disposed in the cavity, receiving a mixed gas of a gas and air, and generating a flame by burning the mixed gas, wherein the burner includes a supplier supplying the mixed gas of the gas and air and a combustor connected with the supplier, receiving the mixed gas from the supplier, and including a plurality of flame holes, and an interval between ends of adjacent flame holes is smaller than an the interval between other portions.
According to an exemplary embodiment of the present invention, since an interval between ends of adjacent flame holes is smaller than an the interval between other portions, the flame generated in any one flame hole can be further easily shifted to the adjacent flame hole.
Further, the plurality of combustors branch from the distributor and the flame hole is formed at both sides of each combustor, such that the cooking food can be uniformly heated and a generated area of the flame is increased such that the cooking food can be rapidly heated.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a cooker according to a first exemplary embodiment of the present invention; and

FIG. 2 is a plan view showing an oven burner installed on the ceiling of a cooking chamber according to the first exemplary embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Hereinafter, an exemplary embodiment will be described in detail with reference to drawings.
FIG. 1 is a perspective view of a cooker according to a first exemplary embodiment of the present invention and FIG. 2 is a plan view showing an oven burner installed on the ceiling of a cooking chamber according to the first exemplary embodiment of the present invention.
Referring to FIG. 1, the cooker 1 according to the exemplary embodiment includes a top plate part 100, an oven part 200, a drawer part 300, and a control part 400.
The top plate part 100, the oven part 200, and the drawer part 300 are provided at the top, the center, and the bottom of a main body 10 of the cooker 1, respectively. In addition, the control part 400 is provided at a rear end on the top of the main body 10.
Particularly, the top plate part 100 includes a plurality of top plate burners 110. The top plate burner 110 cooks a cooking food by directly heating a container containing the cooking food with flame generated by burning a gas.
The front end of the top plate part 100 includes a plurality of knobs 120. The knobs 120 control open and close or open degree of a valve (not shown) adjusting supply or not and supply amount of the gas into the top plate burner 110.
The oven part 200 includes a cavity 210 having a cooking chamber 211.
The cavity 210 is formed in a front-opened rectangular shape, but the shape is not limited thereto. The oven part 200 includes a heat source for heating the cooking food housed in the cooking chamber in the inside or outside of the cavity 210. The heat source includes at least one oven burner 500 and further includes a heater and the like.
The cooking chamber 211 is selectively opened and closed by an oven door 270. The cooking chamber 211 is opened and closed by the oven door 270 in a pull-down method in which an upper end of the door is vertically rotated based on a lower end of the door. A door handle 271 held with a user's hand in order to rotate the oven door 270 is provided at the top front of the oven door 270.
In addition, the drawer part 300 acts to warm the container containing the cooking food at a predetermined temperature. The drawer part 300 includes a drawer 310 storing the container.
The control part 400 receives an operational signal for the operation of the cooker 1, more particularly, an operational signal for the operation of at least one of the top plate part 100, the oven part 200, and the drawer part 300. In addition, the control part 400 acts to externally display various information on the operation of the cooker 1.
Meanwhile, referring to FIG. 2, the heat source includes the oven burner 500 as described above. The oven burner 500 may be installed on the ceiling 212 of the cooking chamber 211 in the cavity 210.
The oven burner 500 acts to radiative-heat directly the cooking food in the cooking chamber 211 by a flame generated by burning the gas.
The oven burner 500 is entirely formed in a fork shape. The oven burner 500 includes a supplier 510, a distributer 520, and a plurality of combustors 530, 540, and 550. In addition, the supplier 510, the distributer 520, and the plurality of combustors 530, 540, and 550 may be integrally formed.
In detail, the supplier 510 is disposed at the front and rear of the rear end of the ceiling 212 of the cooking chamber 211. The supplier 510 acts as an inlet supplied with the gas and air. A channel 511 is provided in the supplier 510. The channel 511 of the supplier 510 is mixed with the gas and the air.
In addition, although not shown in the drawing, the oven part 200 includes a nozzle supplying the gas to the supplier 510. In addition, when the gas is supplied from the nozzle to the supplier 510, the air around the supplier flows into the supplier together with the gas.
In addition, for example, the nozzle may pass through one side wall of the cavity and may be arranged with the supplier 510 while being separated from the supplier 510.
The distributer 520 extends in left and right direction of the cooking chamber 211 in a front end of the supplier 510. In this case, the distributer 520 preferably has a bilateral symmetry based on the supplier 510. In addition, the distributer 520 includes a channel 521 communicated with the channel 511 of the supplier 520.
The distributer 520 distributes a mixed gas transferred from the supplier 510 to each of the combustors 530, 540, and 550.
The distributer 520 includes a plurality of flame holes 523. The flame holes of the distributor 520 burns a part of the mixed gas flowing in the channel 521 of the distributer 520.
The plurality of combustors 530, 540, and 550 extend parallel to each other at the distributer 520. In addition, the plurality of combustors 530, 540, and 550 extend in the front and the rear direction of the cooking chamber 211.
The plurality of combustors 530, 540, and 550 include a first combustor 530 extending from the center of the distributer 520, and a second combustor and a third combustor 540 and 550 extending separately from both side ends of the distributer 520.
That is, each of the combustors 530, 540, and 550 is separated from each other by a predetermined interval in the left and the right direction of the cooking chamber 211. In addition, the first combustor 530 is substantially disposed on the same straight line as the supplier 510.
Each of the combustors 530, 540, and 550 includes the channel 521 of the distributer 520 and channels 531, 541, and 551 communicated therewith, respectively.
A plurality of flame holes 533, 543, and 553 are separately formed at both sides of each of the combustors 530, 540, and 550. The mixed gas is burned in the flame holes 533, 543, and 553 of each of the combustors 530, 540, and 550.
In detail, the flame holes 533, 543, and 553 includes inside holes 533A, 543A, and 553A and outside holes 533B, 543B, and 553B. One ends of the inside holes 533A, 543A, and 553A are communicated with the channels 531, 541, and 551 of each of the combustors 530, 540, and 550.
One ends of the outside holes 533B, 543B, and 553B are communicated with the inside holes 533A, 543A, and 553A and the other ends of the outside holes 533B, 543B, and 553B are communicated with the cooking chamber 211. In addition, the mixed gas is substantially burned at the ends of the outside holes 533B, 543B, and 553B communicated with the cooking chamber 211.
The outside holes 533B, 543B, and 553B are formed in a corn shape in which a diameter is increased toward the other end communicated with the cooking chamber 211 from one end communicated with the inside holes 533A, 543A, and 553A. That is, a cross-sectional area of the channel of the outside holes 533B, 543B, and 553B is larger than that of the inside holes 533A, 543A, and 553A. In addition, the cross-sectional area of the channel of the outside holes 533B, 543B, and 553B is increased toward the side of the cooking chamber from the ends of the outside holes 533B, 543B, and 553B adjacent to the inside holes 533A, 543A, and 553A.
Accordingly, intervals between the outside holes 533B, 543B, and 553B of the flame holes 533, 543, and 553 adjacent to each other are relatively decreased. Therefore, a fire shift in the adjacent flame holes may be easily implemented.
Meanwhile, a distributing guide 560 is provided at an intersection of the supplier 510, the distributer 520, and the first combustor 530, that is, in the channel 521 of the distributer 520 which is between the supplier 510 and the first combustor 530.
The distributing guide 560 evenly distributes the mixed gas which is transferred from the channel 511 of the supplier 510 and flows through the channel 521 of the distributer 520 to each of the combustors 530, 540, and 550. A part of the distributer 520 protrudes to the inside of the channel 521 of the distributer 520 to form the distributing guide 560. On the other hand, the distributing guide 560 may be manufactured by a separate object to be disposed on the channel 521.
In particular, the supplier 510 and the first combustor 530 are disposed on the same straight line. Accordingly, most of the mixed gas transferred to the distributer 520 from the supplier 510 may be transferred to the first combustor 530. In this case, the mixed gas is not evenly transferred to each of the combustors 530, 540, and 550.
Therefore, in the exemplary embodiment, a part of the mixed gas flowing into the distributer 520 by the distributing guide 560 is bilaterally spread such that the mixed gas is uniformly distributed to each of the combustors 530, 540, and 550.
Hereinafter, an operation of the cooker according to the exemplary embodiment of the present invention will be described.
First, a user operates the control part 400 so that an operational signal for cooking the cooking food using the oven part 200 is inputted. In addition, when the operational signal is inputted through the control part 400, the oven burner is operated and the cooking food in the cooking chamber is cooked.
In particular, the gas and the air are supplied to the channel 511 of the supplier 510. The gas and the air supplied to the channel 511 of the supplier 510 flow and are mixed in the channel 511 of the supplier 510.
In addition, the mixed gas mixed in the channel 511 of the supplier 510 is transferred to the channel 521 of the distributer 520. A part of the mixed gas transferred to the channel 521 of the distributer 520 is burned in the flame hole of the distributer 520 so as to form a flame.
Further, the rest of the mixed gas transferred to the channel 521 of the distributer 520 flows in the channel 521 of the distributer 520 so as to be transferred to each of the combustors 530, 540, and 550.
In this case, as described above, the mixed gas is uniformly distributed by the distributing guide 560 provided in the channel 521 of the distributer 520.
In addition, the mixed gas transferred to the channels 531, 541, and 551 of each of the combustors 530, 540, and 550 is burned in the flame holes 533, 543, and 553 of each of the combustors 530, 540, and 550 so as to form the flame.
As such, the cooking food in the cooking chamber 211 is cooked by radiative-heating directly by the flame formed when the mixed gas is burned in the flame hole 523 of the distributer 520 and the flame holes 533, 543, and 553 of each of the combustors 530, 540, and 550.
Therefore, cooking efficiency of the cooking food is increased by heating entirely the cooking food in the cooking chamber 211. In addition, since the flame holes are formed at both sides of each of the combustors, a generated area of the flame is increased such that the cooking food can be rapidly heated.
Further, since the interval between the ends of the outside holes 533B, 543B, and 553B of the flame holes 533, 543, and 553 in which the mixed gas is burned is smaller than the interval between the inside holes 533A, 543A, and 553A, the flame generated in any one flame hole can be further easily shifted to the adjacent flame hole.

Claims

1. A cooker, comprising:

a cavity including a cooking chamber; and

a burner disposed in the cavity, receiving a mixed gas mixed a gas and an air, and generating a flame by burning the mixed gas,

wherein the burner includes,

a supplier supplying the mixed gas; and

a combustor connected with the supplier, receiving the mixed gas from the supplier, and including a plurality of flame holes,

wherein an interval between ends of adjacent flame holes is smaller than an the interval between other portions.

2. The cooker of claim 1, wherein the flame hole includes an inside hole communicated with an inner space of the combustor, and an outside hole disposed at the outside of the inside hole and communicated with the cooking chamber,

wherein a cross-sectional area of a channel of the outside hole is larger than that of the inside hole.

3. The cooker of claim 2, wherein the cross-sectional area of the channel of the outside hole is increased toward the outside from the side of the inside hole.

4. The cooker of claim 2, wherein the outside hole is formed in a corn shape.

5. The cooker of claim 1, wherein the burner includes a plurality of the combustors, and the supplier and the plurality of the combustors are connected by a distributer.

6. The cooker of claim 5, wherein a plurality of flame holes are formed at both sides of each of the combustors.

7. The cooker of claim 5, wherein the plurality of combustors extend parallel to each other from the distributer.

8. The cooker of claim 5, wherein the distributer includes a plurality of flame holes.

9. The cooker of claim 5, wherein the supplier and the plurality of combustors extend laterally from the distributer.