US20120037147A1

US20120037147A1 - Cooking appliance

Info

Publication number: US20120037147A1
Application number: US13/263,935
Authority: US
Inventors: Young-soo Kim; Yang-Ho Kim
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2009-05-11
Filing date: 2009-09-03
Publication date: 2012-02-16
Also published as: WO2010131801A1; KR20100122025A

Abstract

The present disclosure relates to a cooking appliance. The cooking appliance of the disclosure comprises a cavity, in which the top surface thereof has a curvature, providing cooking space of food; a first heat source positioned at the top of the cavity while having the curvature corresponding to the top surface of the cavity and heating interior space of the cavity; a first heat source positioned at the bottom of the cavity and heating interior space of the cavity; and a discharge port discharging the discharge gas into the exterior space.

Description

BACKGROUND OF THE INVENTION

1. Technical Field
The present disclosure relates to a cooking appliance, and more particularly, to the cooking appliance capable of cooking by a grill.
2. Description of the Related Art
The cooking appliance is one of electrical appliances cooking food by heating the food to be cooked to allow a user to eat.
Such a cooking appliances are classified depending on the type of heat sources heating the food to be cooked and forms to be disposed.
First, the cooking appliances are classified into a microwave oven and an oven depending on the type of heat sources heating the food to be cooked. Here, the microwave oven heats the food by supplying high-frequency to a shielded space accommodating the food and the oven cooks the food by heating air of the shielded space accommodating the food.
Further, the cooking appliances are classified into a gas cooking appliance and an electric cooking appliance depending on the type of heat sources heating the food to be cook. Here, the gas cooking appliance heats the food with a flame generated by burning the gas to be supplied and the electrical cooking appliance heats the food with a heater heated by electricity to be supplied.
The cooking appliances are classified into built-in type of cooking appliances, free-stand type of cooking appliances and wall-mounted type of cooking appliances depending on forms to be disposed. Here, the built-in type of cooking appliances are disposed between kitchen furnitures disposed at a kitchen space, the free-stand type of cooking appliances is disposed at any desired location in the kitchen, and the wall-mounted type of cooking appliances are disposed at a wall of the kitchen space.
Recently, various technologies are used to satisfy various requirements of the user.
Further, nowadays, various functions are added to satisfy various requirements of the user, and the added functions include function reducing cooking time required for cooking the food by complexly disposing heat sources or insulation function for stability improvement of the configuration accommodated in the kitchen furnitures, and reconfiguration of flow passage for discharge of the discharge gas generated when cooking the food and cooling of the product.

SUMMARY OF THE INVENTION

An object of the disclosure is to provide a cooking appliance capable of concentratedly heating.
Another object of the disclosure is to provide a cooking appliance having a wide cooking space.
The cooking appliance of the disclosure comprises a cavity, in which the top thereof has a curvature, providing cooking space of food; a first heat source positioned at the top of the cavity while having the curvature corresponding to the top surface of the cavity and heating interior space of the cavity; a first heat source positioned at the bottom of the cavity and heating interior space of the cavity; and a discharge port discharging the discharge gas into the exterior space.
The cooking appliance in another aspect of the disclosure comprises a cavity providing a cooking space of food; a separation plate partitioning interior space of the cavity into top space and bottom space; a first heat source disposed in the top of the cavity and heating the interior space of the cavity; and a second heat source disposed in the bottom of the cavity and heating the interior space of the cavity, wherein front cross sections of the top space and the bottom space of the cavity partitioned by the separation plate are different from each other.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing shape of the cooking appliance according to an embodiment of the disclosure.

FIG. 2 is a side cross section view showing configuration of the cooking appliance according to an embodiment of the disclosure.

FIG. 3 is a front cross section view showing cavity of the cooking appliance according to an embodiment of the disclosure.

FIG. 4 schematically shows configuration for a first heat source disposed at top of the cavity of the cooking appliance according to an embodiment of the disclosure.

FIG. 5 is a front cross section view showing cavity of the cooking appliance according to another embodiment of the disclosure.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Hereinafter, a cooking appliance in the disclosure will be described in detail with reference to attached drawings.
However, an embodiment for an idea of the disclosure is not limited to the embodiment described below and one skilled in the art understanding an idea of the disclosure may easily propose another embodiment included within range the same idea by addition, change, deletion and the like of the constituents but they also will be included in an idea of the disclosure.
Further, an embodiment of the disclosure is described for a gas oven for ease of the descriptions but not limited to it and may be applied to all types of cooking appliance.
Further, the term used in the specifications or claims is the concept selected for ease of the descriptions and therefore, should be reasonably interpreted to be coincided to the technical idea of the disclosure so as to grasp the technical content of the disclosure.
FIG. 1 is a perspective view showing shape of the cooking appliance according to an embodiment of the disclosure, and FIG. 2 is a side cross section view showing configuration of the cooking appliance according to an embodiment of the disclosure.
Further, FIG. 3 is a front cross section view showing a cavity of the cooking appliance according to an embodiment of the disclosure. The cooking appliance, illustrated as a gas oven range, according to an embodiment of the disclosure will be described with reference to drawings shown.
The shape for the cooking appliance of the disclosure has overall roughly rectangular type. In the cooking appliance, a cooktop portion 100 is positioned at the upper to cook food by heating food placed in the top or the bowl of the food, and a oven portion 200 is positioned at the bottom of the cooktop portion 100 to cook the food by accommodating the food in the interior space and heating the space containing the food by a number of heat source.
A drawer portion 300 is positioned at the bottom the oven portion 200 to keep cooked food warm or form the space of relatively low temperature to cook the food by heating the food at low temperature.
Therefore, in the cooking appliance of the disclosure, the cooktop portion 100 is positioned at the upper, the drawer portion 300 is positioned at the lower, and the oven portion 200 having the largest volume is positioned at center the cooking appliance, that is, space between the cooktop portion 100 and the drawer portion 300.
The cooktop portion 100 having the shape of roughly the rectangular forms a certain degree of the interior space and a plurality of top burner 110 is disposed in the interior space to cook food by heating food placed in the top or the bowl of the food.
The top surface of the cooktop portion 100 is formed by a top plate 120, the top plate 120 having a certain degree of thickness has a square plank type and a number of burner holes having a certain degree of diameter is formed. The number of top burner 110 passing through the burner is disposed to be protruded upward at a certain degree from the top surface of the top plate 120.
Further, a supporting member 130 supporting the bowl of the food is disposed at the top surface of the top plate 120. The supporting member 130 is formed by material having a certain degree of strength to support the bowl of the food placed in the top surface thereof.
A controller 140 is positioned at front end of the cooktop portion 100 to control the cooktop portion 100, the oven portion 200 and the drawer portion 300 by a user. In the controller 140, an operation portion 150 directly operating the heat source is composed of a number of knob type when the user use the cooktop portion 100, the oven portion 200 and the drawer portion 300 to cook the food, and a display portion 160 representing as screen or image, speech signal is disposed to check operating condition of the cooktop portion 100, the oven portion 200 and the drawer portion 300.
It is possible that the operation portion 150 operating directly the number of heat source is also composed of various type other than knob type, for example, button or wheel type. That is, if it is configured that the user may operate the number of heat source, some type of configuration will be also fine.
The oven portion 200 is positioned at the bottom of the cooktop portion 100. The oven portion 200, at which the front thereof is totally opened, has a certain degree of interior space, a cavity 210 is positioned at the interior space thereof to provide space cooking the food, and a number of heat source is disposed at the outside of the cavity 210.
Likewise, the interior space of the cavity 210 is heated by the number of heat source composed outside of the cavity 210 and therefore, the food positioned at the interior space of the cavity 210 is heated and cook by hot air of the interior space of the cavity 210.
In the cavity 210, in which the top surface thereof has a constant curvature, having the interior space and opened front, the food to be cook or the cook food enter the interior space and the exterior space through the opened front and an oven door 220 is revolvably mounted in the front of the oven portion 200 to open and close the interior space of the cavity 210.
The oven door 220 having a certain degree of thickness has a square plank type, and a perspective window 222 is formed in center of the oven door 220 to check cooking condition or operating condition of the food accommodated in the interior space of the cavity 210 without rotating the oven door 220 by the user.
The cavity 210 disposed at the interior space of the oven portion 200, in which top surface thereof has curvature and its center has shape to be round upward, is provided as cooking space of the food, and the number of first heat source 230 is disposed at the top of the cavity 210 to heat the interior space of the oven portion 200.
A door handle 224 easily rotating the oven door 220 is disposed at front of the oven door 220 when the user rotates the oven door 220. It is possible to form the door handle 224 to be protruded forward from front of the oven door 220 and to form the door handle 224 to be depressed backward to allow the user to grasp.
That is, some type of the door handle 224 to allow the user to easily grasp when rotating the oven door 220 by the user will be fine, and since the cavity 210 perform function providing the space cooking the food in the interior space thereof, if the type of the cavity 210 may perform such a function, some type of the cavity will be fine.
Further, the drawer portion 300, in which the top surface thereof is opened rectangular, includes a heat source disposed in the bottom thereof or the bottom side the interior space and heating the interior space of the drawer portion 300, it is also possible that the heat source is disposed in majority and in a various type.
The drawer portion 300 is mounted to be sled back and forth to forward slide if necessary by the user and then, accommodates and keeps the food or the bowl of the food or cooks the food. The drawer handle 310 disposed in the front of the drawer portion 300 and for grasping to allow the user to slide the drawer portion 300 is disposed.
On the other hand, the oven portion 200 is formed by a heat storage member 226 storing heat to be applied to an outer wall. The heat storage member 226 is made of material of stone and the like and slowly radiates heat to be heated by the number of heat source disposed in the outside of the cavity 210 in the condition accumulated at a certain degree in the inside of the heat storage member 226.
Hereinafter, the oven portion 200 will be described in more detail with reference to the attached drawings.
The cavity 210 seen forward has curvature to be rounded at the center of the top surface thereof, and a number of first heat source 230 heating the interior space of the cavity along with the top of the cavity 210 is disposed in the top of the cavity 210 having curvature to be rounded upward.
A surface burning burner generating flame while burning on the surface is used as the first heat source 230. A ceramic burner is mainly used as the face burning burner, and it is also possible to use a different type of heat source. However, since location of the first heat source 230 is mounted in the top surface of the cavity 210, it is preferable to mount the face burning burner.
Further, the first heat source 230 is mounted along with the top surface having curvature of the cavity 210 and therefore a contact portion between the first heat source 230 and the cavity 210 is formed to have the curvature corresponding to the top of the cavity 210. Thus, it is preferable to closely mount the burning portion of the first heat source 230 in the top of the cavity 210.
Of course, the burning portion of the first heat source 230 has not a certain degree of the curvature, composes a additional structure, that is, a fastening member, and may be formed to be closed with the top surface of the cavity 210 while fastening the fastening member having curvature corresponding to the top of the cavity 210 to the top of the cavity 210 or edge portion for burning portion of the first heat source 230.
Likewise, forming the first heat source 230 and the top surface of the cavity 210 to be closed is to heat the interior space of the cavity 210 without leaking burning heat generating while burning gas in the first heat source 230 to the outside.
Hereinafter, configuration for a gas supply portion of the cooking appliance according to an embodiment of the disclosure will be described with reference to FIG. 4. FIG. 4 schematically shows configuration for a gas supply portion of the cooking appliance according to an embodiment of the disclosure.
The gas supply portion 240 supplying mixture gas to the first heat source 230 is disposed at the back of the first heat source 230. In the drawing, the gas supply portion 240 includes the gas mixture tube 241 generating mixture gas while simultaneously introducing gas and outer air.
The front edge portion of the gas mixture tube 241 is disposed to be communicated with a main mixture tube 242 at length disposed in the direction to be crossed with the gas mixture tube 241 and having circular pipe type with a certain degree of diameter.
As the gas mixture tube 241 goes toward the first heat source 230, cross sectional area thereof is narrow and then wide. The main mixture tube 242 supplies the mixture gas mixed with gas and air while passing through the gas mixture tube 241 to each of the first heat source 230.
The main mixture tube 242 is a circular pipe type to be lengthen horizontally and constantly partial mixed mixture in the gas mixture tube 241 is circulated in the interior space of the main mixture tube 242.
The mixture gas guide tube 243 to allow the first heat source 230 and the main mixture tube 242 to communicate is positioned at the front of the main mixture tube 242. The mixture gas guide tube 243, in which one end thereof is communicated with the main mixture tube 242 and the other end is communicated with the first heat source 230, guides the mixture gas to be moved to the first heat source 230.
Accordingly, the gas and the air introduced into the gas mixture tube 241 is mixed at a certain degree while passing through the gas mixture tube 241 to form the mixture gas, and the mixture gas passing through the gas mixture tube 241 is more mixed while moving to the main mixture tube 242 to be communicated with the interior space of the gas mixture tube 241.
The mixture gas moved to the main mixture tube 242 is more mixed while moving to the mixture gas guide tube 243, the mixture passing through the mixture gas guide tube 243 ignites each of the first heat source 230 while circulating into the interior space of the first heat source 230. Then, the mixture gas is burned to heat the interior space of the cavity 210.
Likewise, the first heat source 230 is back and forth at length mounted in the top surface of the cavity 210 to heat the interior space of the cavity 210. One of the first heat sources 230 is positioned at the center of the top positioned at upper end portion of the cavity 210 and each different first heat source 230 is positioned at both side. The first heat source 230 is positioned to be farthest spaced from the bottom of the cavity 210 than the first heat sources 230 positioned respectively at both sides.
At this time, the first heat sources 230 is mounted so that the portion to be burned while igniting gas faces the interior space of the cavity 210 and the interior space of the cavity 210 is heated by the burning heat.
A second heat source 250 is disposed at the bottom of the cavity 210 to heat into the interior space of the cavity 210, and a separation plate 260 is disposed at the interior space of the cavity 210 to spatially partition the cavity 210 into top space and bottom space.
Accordingly, the interior space of the cavity 210 is partitioned into the top space and the bottom space by the separation plate 260, and each discharge port 270 is formed in the back side of the top space and the bottom space partitioned by the separation plate 260 to move discharge gas to be generated when cooking the food in the interior space of the cavity 210 to the exterior space of the cavity 210.
It is also possible that the discharge port 270 is formed to communicate with a main discharge duct 280 positioned at the back of the cavity 210. The main discharge duct 280 discharges the discharge gas to be generated at the cooktop portion 100, the oven portion 200 and the drawer portion 300 into the exterior space. The discharge gas is guided by the main discharge duct 280 to be discharged into the exterior space by communicating the main discharge duct 280 and the discharge port 270 with each other.
In addition, in the first heat sources 230, each distance between the first heat source 230 positioned at the top surface center of the cavity 210 and the first heat source 230 positioned at the both sides have the same distance, and the first heat sources 230 are positioned side by side horizontally when viewed from the front.
Meanwhile, if the interior space of the cavity 210 is partitioned into the top space and the bottom space by the separation plate 260, the front cross sections of the top space have shapes different from each other.
That is, the top surface of the cavity 210 having the curvature is formed to be rounded. Therefore, the top space formed by the separation plate 260 is formed by the front cross section in which the top thereof is rounded and the bottom space is formed by the front cross section of the rectangle.
Further, the top surface of the cavity 210 having the curvature is formed to be rounded, and therefore, when extending heating direction of each of the first source 230 mounted along with the top with imaginary extension lines, each of extension lines is crossed each other at any branch.
In detail, the heating directions of the first heat source 230 mounted in the top surface center of the cavity 210 face directly under the direction regardless of the curvature of the top of the cavity 210, and the heating directions of the first heat source 230 mounted in the top left part when viewed in the drawing face downward toward the right direction.
Further, the heating directions of the first heat source 230 mounted in the top surface right part of the cavity 210 when viewed in the drawing face downward toward the left direction.
Accordingly, when drawing the heat directions of each of the first heat source 230 by the imaginary extension lines, the extension lines cross each other at any branch.
Therefore, the food placed in the center of the interior space of the cavity 210 is concentratedly heated, thereby reducing cooking time by concentrated heating.
Hereinafter, acting of the cooking appliance according to an embodiment of the disclosure configured as above will be described.
If the user cooks the food by using the oven portion 200, the operation portion 150 disposed in the controller 140 is operated to supply the gas to the first heat source 230 mounted in the top surface of the cavity 210 and then, the oven portion 200 is ignited. At this time, if the user supplies the gas to the first heat source 230, the gas is introduced into the gas mixture tube 241. The introduced gas and air is mixed at a certain degree to form the mixture gas while passing through the gas mixture tube 241.
The mixture gas passing through the gas mixture tube 241 is moved into the main mixture tube 242, and the mixture gas moved into the main mixture tube 242 is guided by the mixture gas guide tube 243, is introduced into the first heat source 230, and is burned.
The first heat source 230 generates the burning heat and radiant heat by the first heat source 230, and the interior space of the cavity 210 is heated by the burning heat and radiant heat to cook the food.
At this time, the first heat source 230 is mounted along with the top surface of the cavity 210 having the curvature in which the center thereof is rounded upward, and therefore, the burning heat and the radiant heat face toward the center of the interior space of the cavity 210. So, more heat is transferred to the center of the interior space of the cavity 210 to reduce the cooking time of the food placed in the center of the interior space of the cavity 210.
In the cooking appliance according to the disclosure configured as above, the food placed in the center of the cavity may be concentratedly heated, thereby reducing cooking time of the food.
Further, the top surface of the cavity is formed by the shape having the curvature, and therefore, there is an effect that the interior space of the cavity is wide. There is an effect that high-capacity food cooking is to be able due to widening of the interior space.
There is an effect that the various food may be cooked by allowing high-capacity food having large volume to cook and various requirements of the user may be satisfied.
Further, there is an effect that ease of use for the cooking appliance is maximized by allowing various food to cook.
In the cooking appliance according to the disclosure configured as above, the food placed in the center of the cavity may be concentratedly heated, thereby reducing cooking time of the food.
Further, the top surface of the cavity is formed by the shape having the curvature, and therefore, there is an effect that the interior space of the cavity is wide. There is an effect that high-capacity food cooking is to be able due to widening of the interior space.
These effects will be available enough for production industry and distribution industry producing and selling the cooking appliance.

Claims

1. A cooking appliance, comprising:

a cavity, in which the top surface thereof is formed to be rounded with a predetermined curvature, providing a space for cooking food;

a first heat source disposed in the top surface of the cavity, formed to be rounded to allow at least one side thereof and top of the cavity to have the same curvature as each other and providing radiant heat for heating food placed in the interior space of the cavity; and

a second heat source disposed in the bottom of the cavity and heating food placed in the interior space of the cavity.

2. The cooking appliance according to claim 1,

wherein the first heat source is a surface burning burner directly fixed at the top surface of the cavity.

3. The cooking appliance according to claim 1,

wherein the first heat sources are configured in plural to be spaced by the predetermined distance apart from each other.

4. The cooking appliance according to claim 3,

wherein geometric centers of the first heat sources are positioned at heights different from each other.

5. The cooking appliance according to claim 1,

further comprising a separating plate partitioning the interior space of the cavity into a top space and a bottom space.

6. The cooking appliance according to claim 4,

wherein the first heat sources heat the food of the top space of the cavity partitioned by the separation place,

the second heat sources heat the food of the bottom space of the cavity partitioned by the separation plate.

7. The cooking appliance according to claim 4,

further comprising a discharge port discharging discharge gas of the interior space of the cavity into the outside.

8. The cooking appliance according to claim 7,

wherein the discharge ports are positioned respectively at the top space and bottom space of the cavity partitioned by the separation place.

9. A cooking appliance, comprising:

a cavity providing a cooking space of food;

a separation plate partitioning an interior space of the cavity into a top space and a bottom space;

a first heat source disposed in the top of the cavity and heating food placed in the interior space of the cavity; and

a second heat source disposed in the bottom of the cavity and heating food placed in the interior space of the cavity;

wherein in the top space and the bottom space of the cavity partitioned by the separation plate, the profiles in the left and right directions are different from each other.

10. The cooking appliance according to claim 9,

wherein the first heat sources are configured in plural positioned to be spaced apart from each other along with the top surface of the cavity.

11. The cooking appliance according to claim 10,

wherein the first heat sources supply radiant heat to the top space of the cavity.

12. The cooking appliance according to claim 11,

wherein the shortest distances from the first heat sources to the top surface of the separating plate are different from each other.

13. The cooking appliance according to claim 11,

wherein imaginary lines are crossed each other in the direction providing the radiant heat from the first heat source to the top space of the cavity.

14. The cooking appliance according to claim 9,

further comprising a top discharge port discharging discharge gas of the top space of the cavity into the outside; and

a bottom discharge port discharging discharge gas of the top space of the cavity into the outside.

15. The cooking appliance according to claim 9,

wherein the top surface of the top space of the cavity is formed to be rounded with a predetermined curvature,

the top surface of the bottom space of the cavity is formed to be flat.