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 
       [0001]    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 
       [0002]    1. Field of the Invention 
         [0003]    The present invention relates to a cooker. 
         [0004]    2. Description of the Related Art 
         [0005]    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. 
         [0006]    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 
       [0007]    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. 
         [0008]    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. 
         [0009]    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. 
         [0010]    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 
         [0011]      FIG. 1  is a perspective view of a cooker according to a first exemplary embodiment of the present invention; and 
           [0012]      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 
       [0013]    Hereinafter, an exemplary embodiment will be described in detail with reference to drawings. 
         [0014]      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. 
         [0015]    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 . 
         [0016]    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 . 
         [0017]    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. 
         [0018]    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 . 
         [0019]    The oven part  200  includes a cavity  210  having a cooking chamber  211 . 
         [0020]    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. 
         [0021]    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&#39;s hand in order to rotate the oven door  270  is provided at the top front of the oven door  270 . 
         [0022]    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. 
         [0023]    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 . 
         [0024]    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 . 
         [0025]    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. 
         [0026]    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. 
         [0027]    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. 
         [0028]    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. 
         [0029]    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 . 
         [0030]    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 . 
         [0031]    The distributer  520  distributes a mixed gas transferred from the supplier  510  to each of the combustors  530 ,  540 , and  550 . 
         [0032]    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 . 
         [0033]    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 . 
         [0034]    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 . 
         [0035]    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 . 
         [0036]    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. 
         [0037]    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 . 
         [0038]    In detail, the flame holes  533 ,  543 , and  553  includes inside holes  533 A,  543 A, and  553 A and outside holes  533 B,  543 B, and  553 B. One ends of the inside holes  533 A,  543 A, and  553 A are communicated with the channels  531 ,  541 , and  551  of each of the combustors  530 ,  540 , and  550 . 
         [0039]    One ends of the outside holes  533 B,  543 B, and  553 B are communicated with the inside holes  533 A,  543 A, and  553 A and the other ends of the outside holes  533 B,  543 B, and  553 B are communicated with the cooking chamber  211 . In addition, the mixed gas is substantially burned at the ends of the outside holes  533 B,  543 B, and  553 B communicated with the cooking chamber  211 . 
         [0040]    The outside holes  533 B,  543 B, and  553 B 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  533 A,  543 A, and  553 A. That is, a cross-sectional area of the channel of the outside holes  533 B,  543 B, and  553 B is larger than that of the inside holes  533 A,  543 A, and  553 A. In addition, the cross-sectional area of the channel of the outside holes  533 B,  543 B, and  553 B is increased toward the side of the cooking chamber from the ends of the outside holes  533 B,  543 B, and  553 B adjacent to the inside holes  533 A,  543 A, and  553 A. 
         [0041]    Accordingly, intervals between the outside holes  533 B,  543 B, and  553 B 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. 
         [0042]    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 . 
         [0043]    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 . 
         [0044]    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 . 
         [0045]    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 . 
         [0046]    Hereinafter, an operation of the cooker according to the exemplary embodiment of the present invention will be described. 
         [0047]    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. 
         [0048]    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 . 
         [0049]    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. 
         [0050]    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 . 
         [0051]    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 . 
         [0052]    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. 
         [0053]    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 . 
         [0054]    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. 
         [0055]    Further, since the interval between the ends of the outside holes  533 B,  543 B, and  553 B of the flame holes  533 ,  543 , and  553  in which the mixed gas is burned is smaller than the interval between the inside holes  533 A,  543 A, and  553 A, the flame generated in any one flame hole can be further easily shifted to the adjacent flame hole.