KR101864491B1 - Burner and cooking appliance therewith - Google Patents

Abstract

A burner and a cooking appliance having the same are disclosed. The disclosed invention relates to a burner provided in a cooking apparatus including a cooktop case forming an inner space with an open top and a top plate covering an open top of the cooktop case, A nozzle holder installed in the space, the nozzle holder including a central nozzle and a side nozzle for supplying gas into the inside of the burner; A burner head mounted on an upper portion of the nozzle holder so as to be positioned at an upper portion of the upper plate, the burner head including an inner burner head positioned at the center and an outer burner head positioned outside the inner burner head; A first supply flow path forming a flow path for the gas supplied from the side nozzles to flow into the inside of the outside burner head and a flow path for the air flowing in the inside space of the cooktop case into the inside of the outside burner head; And a second supply passage portion for forming a flow path for the gas supplied from the central nozzle to flow into the inner burner head and a flow path for the air flowing from the upper portion of the upper plate to flow into the burner head.

Description

BURNER AND COOKING APPLIANCE THEREWITH BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a burner and a cooking appliance having the same, and more particularly, to a burner for generating a flame by burning gas and a cooking appliance having the burner.

A cooking device is one of household appliances for cooking food, and is installed in a kitchen space to cook food according to a user's intention. Such cooking devices can be classified into various types according to the heat source or type used and the type of fuel.

Cooking equipment can be classified into open type and closed type cooking equipment depending on the type of space where food is placed. The closed cooking devices include an oven and a microwave oven, and open cooking devices include a cooktop and a hop.

A closed type cooking device is a cooking device that shields a space where food is placed and cooks food by heating a shielded space. The open type cooking device is a cooking device in which a container containing food or food is placed in an open space and the food or food container is heated to cook food.

The closed type cooking apparatus is provided with a cooking chamber, which is a space that is shielded when the food is placed and food is to be cooked. Such a cooking chamber becomes a space where food is substantially cooked. A heat source is provided in the inside or outside space of the cooking chamber to heat the cooking chamber.

Recently, a closed type cooking device and an open type cooking device are installed at the same time, and a plurality of heat sources are combined, so that various cooking utensils and a plurality of foods can be cooked at the same time. In such a cooking appliance in which a plurality of heat sources are installed, a flow path of cooling air for cooling a plurality of heat sources and electrical components is accompanied.

In the above complex cooking device, an open type cooking device is placed on the upper side of the closed type cooking device. Further, the open cooking device is provided with a plurality of heaters or burners, and is installed so that a plurality of dishes can be cooked at the same time.

That is, when the user grills the oven such as a barbecue dish or bread, or grilled fish, the user uses a closed type cooking device to cook the food. When the user puts the food into the container and heats the food, Cooking is done using cooker.

A typical example of the open type cooking device is an open type cooking device in the form of a gas range, and is a device for cooking food using a flame generated when a gas is burned by a burner.

A burner provided in this type of open type cooking apparatus generally has a configuration including a burner body, a burner head, and a burner head cap.

According to the present invention, there is provided a burner body in which a flow path for supplying a gas is formed in a main body forming an outer shape of an open type cooking device, and a burner head for discharging gas supplied through a flow path is provided at an upper portion of the burner body, The head cap is installed on the top of the burner head.

The burner body may be equipped with a gas supply pipe for supplying gas and a nozzle for injecting gas. And the burner head may be located on a member defining the top surface of the open cooking appliance, for example, on the top surface of the top plate, and the burner head cap is seated above the burner head.

In this case, the burner head and the burner head cap define a space in which the gas injected from the nozzles and the air around the nozzles are mixed and delivered, and a space in which the flame is ejected into the outer space while the mixed gas flows into the outer space can do.

In recent years, dual burners having two burners arranged in a concentric circle are widely used as burners provided in an open type cooking appliance, in order to utilize flames effectively and to utilize flames suitable for various cooking vessels.

Such a double burner includes a central burner that generates a flame in the form of a circular ring having a relatively small diameter and is located at a relatively central portion, and an external burner that generates a flame in the form of a circular ring spaced outward from the outer edge portion of the central burner And the like.

The double burner configured as described above operates in such a manner that the central burner and the external burner are used simultaneously when heating a large-capacity cooking vessel or heating a cooking vessel having a large floor area to cook food.

In the case of operating the double burner with a heavy amount of heat, a gas of neutralizing force may be formed while only gas is supplied to the external burner. In the case of operating the double burner with a small amount of heat, gas is supplied only to the central burner, A flame is formed to provide a small amount of thermal power.

In order to stably burn the double burner as described above, it is important that the air supplied for combustion is stably supplied. In particular, when a sufficient amount of primary air required for combustion is stably supplied, the initial ignition of the burner is smoothly performed, It is possible to stably form the flame of the flame.

On the other hand, the external burner is responsible for 80-90% of the total heat available in the double burner, so the higher the heat provided by the double burner, the more important it is to ensure a sufficient amount of primary air for combustion of the external burner .

On the other hand, the internal burner does not require a large amount of primary air because the amount of heat to be supplied is small, but the thermal power of the flame generated is so low that the internal burner is greatly affected by the disturbance.

For example, when a sudden change occurs in the flow of the primary air supplied to the external burner and the internal burner by the opening and closing operation of the door provided to the closed cooking device provided at the lower portion of the open cooking device, The external burner having a high firepower has little effect, but the internal burner having a weak firepower is greatly influenced thereby, and it is difficult to stably maintain the combustion state.

Typically, the supply of primary air to the burner is through the lower or upper portion of the top plate.

In the case of the structure in which the primary air is supplied to the burner through the lower part of the upper plate, since the primary air can be supplied through the large space under the upper plate, it is advantageous for securing the primary air. However, Since a flow path for supplying the vehicle air is formed, it can be influenced by the opening and closing of the door.

In the case of the structure in which the primary air is supplied to the burner through the upper part of the upper plate, since the passage for supplying the primary air is formed at a position distant from the door, it is less influenced by opening and closing the door. It becomes difficult to secure the supply amount.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a burner having a structure capable of receiving a sufficient amount of primary air for stable combustion while minimizing the influence of disturbance and a cooking device having the same.

A burner according to an aspect of the present invention is provided in a cooking apparatus including a cooktop case forming an inner space with an open top and an upper plate covering an open top of the cooktop case, A nozzle holder installed in an inner space of the cooktop case so as to be positioned at a lower portion thereof and including a central nozzle and a side nozzle for supplying gas into the burner; A burner head installed at an upper portion of the nozzle holder so as to be positioned at an upper portion of the upper plate, the burner head including an inner burner head positioned at the center and an outer burner head positioned outside the inner burner head; A first flow path for flowing gas supplied from the side nozzles into the inside of the outer burner head and a flow path for flowing air flowing in the inner space of the cook top case into the inside of the outside burner head, ; And a second supply passage portion for forming a flow path for the gas supplied from the central nozzle to flow into the inner burner head and a flow path for the air flowing from the upper portion of the upper plate to flow into the inner burner head .

The first supply passage portion may be formed in a hollow tube shape having a length extending from the outer burner head to an inner space of the cooktop case, and a lower end portion of the first supply passage portion may be provided with an opening And a first outlet for opening the interior of the first supply passage to the inside of the outer burner head is formed at an upper end of the first supply passage, Do.

The second supply passage portion is formed in the shape of a hollow tube having a length extending from the inner burner head toward the center nozzle side and a lower end portion of the second supply passage portion is provided with a passage And a second outlet for opening the inside of the second supply passage to the inside of the inner burner head is formed at an upper end of the second supply passage portion .

The present invention further includes a burner body provided between the nozzle holder and the burner head so as to be positioned below the upper plate, the burner body including the center nozzle therein, and the center nozzle and the second inlet And a central flow path is formed to form a passage connecting the first and second flow paths.

It is preferable that the central passage portion is formed so that an upper portion facing the inner burner head is opened, and the second inlet portion is formed to be opened toward the central passage portion.

The present invention may further comprise a guide channel portion provided between the burner body and the burner head to form a passage through which air flowing from the upper portion of the upper plate flows into the central channel portion.

And an outer end portion of the guide channel portion. A third inlet opening for opening the inside of the guide channel portion toward the outside of the burner at an upper portion of the top plate, and a third inlet opening for opening the inside of the guide channel portion to the inside of the central channel portion, Preferably, an outlet is formed.

The guide passage portion may include a head protrusion protruding in the form of a rib having a cross-section on the lower surface of the burner head and a rib protruding in the form of a rib having a cross section on the upper surface of the burner body The body protrusions are preferably formed so as to be engaged with each other so as to form a cross section of a "?

According to another aspect of the present invention, there is provided a cooking apparatus comprising: a cooktop case forming an inner space having an open top; An upper plate which is covered on an open upper portion of the cooktop case and in which an opening hole for opening an internal space of the cooktop case to an upper portion of the cooktop case is formed; And a burner installed in the opening hole, wherein the burner is installed in an internal space of the cooktop case so as to be positioned below the upper plate, and a central nozzle for supplying gas into the burner, A nozzle holder; A burner head disposed on the upper portion of the burner body to be positioned at an upper portion of the upper plate, the burner head including an inner burner head positioned at the center and an outer burner head positioned outside the inner burner head; A first flow path for flowing gas supplied from the side nozzles into the inside of the outer burner head and a flow path for flowing air flowing in the inner space of the cook top case into the inside of the outside burner head, ; And a second supply passage portion for forming a flow path for the gas supplied from the central nozzle to flow into the inner burner head and a flow path for the air flowing from the upper portion of the upper plate to flow into the inner burner head .

Further, the present invention provides a cooktop unit comprising the cooktop case, the upper plate, and the burner; And a cooking chamber provided at a lower portion of the cooktop and providing a space for cooking food, and an oven including a door rotatably installed in the cooking chamber to open and close the cooking chamber.

The burner further includes a burner body provided between the nozzle holder and the burner head so as to be positioned below the upper plate, wherein the burner body includes the center nozzle therein, and the center nozzle and the second And the burner is provided between the burner body and the burner head to form a passage through which the air flowing from the upper portion of the upper plate flows into the central passage portion And the guide channel portion is provided in the space between the burner head and the upper plate located above the upper plate.

In addition, the air introduced into the first supply path portion in the internal space of the cooktop case flows into the inside of the outside burner head through the first supply path portion and is supplied as primary air to the inside of the outside burner head, The air introduced into the central passage portion through the guide passage portion flows into the inner burner head through the second supply passage portion and is supplied as primary air to the inside of the inner burner head .

According to the burner of the present invention and the cooking apparatus having the burner, it is possible to provide a sufficient amount of primary air for stable burning of the burner, while being able to receive less influence of disturbance, In addition, the burning state of the burner can be stably maintained even when the door is opened and closed for use in the oven, thereby enhancing convenience for the user.

1 is a perspective view schematically showing a cooking apparatus according to an embodiment of the present invention.
2 is a side cross-sectional view showing an internal configuration of a cooking apparatus according to an embodiment of the present invention.
3 is a planarized exploded perspective view of the burner according to an embodiment of the present invention.
4 is an exploded bottom perspective view of the burner according to one embodiment of the present invention.
5 is a cross-sectional view showing the internal structure of the outside burner head.
6 is a sectional view showing the internal structure of the inner burner head.
7 is a view showing the primary air supply state to the outside burner head.
8 is a view showing a primary air supply state to an inner burner head.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a burner and a cooking device having the same according to the present invention will be described with reference to the accompanying drawings. For convenience of explanation, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a perspective view schematically showing a cooking device according to an embodiment of the present invention, and FIG. 2 is a side sectional view showing an internal configuration of a cooking device according to an embodiment of the present invention. FIG. 3 is a plan exploded perspective view of a burner according to an embodiment of the present invention. FIG. 4 is an exploded bottom perspective view of the burner according to an embodiment of the present invention. 5 is a cross-sectional view showing the inner structure of the outer burner head, and FIG. 6 is a sectional view showing the inner structure of the inner burner head.

1 and 2, a cooking apparatus according to an embodiment of the present invention is formed with an outer appearance by a main body 10. The main body 10 may be formed in a shape including a substantially rectangular parallelepiped shape and is formed of a material having a predetermined strength to protect a plurality of parts provided in the inner space.

At the upper end of the main body 10, there is a cooktop portion 20 provided for cooking food by heating the opened space, that is, the container containing the food or the food placed on the upper side.

The cook top part (20) is provided with an upper plate (21) forming an upper surface appearance of the cook top part (20).

At least one burner 100 for heating a container containing food or food to be cooked is placed in the upper plate 21.

An oven portion 30 is provided below the cooktop portion 20. In the inner space of the oven part (30), there is a cooking chamber (31) which provides a space for cooking food.

The cooking chamber 31 is formed in the shape of a hexahedron whose front face is opened. The cooking chamber 31 is heated while heating the internal space of the cooking chamber 31 in a state where the cooking chamber 31 is shielded. That is, in the oven portion 30, the inner space of the cooking chamber 31 is a space where food is cooked substantially.

An upper heater 34 for heating the inner space of the cooking chamber 31 from above can be provided on the upper side of the cooking chamber 31 and a lower heater 34 for heating the inner space of the cooking chamber 31 from below A lower heater 35 may be further provided.

Further, on the rear side of the cooking chamber 31, there can be further provided a convection portion 36 for heating the internal space of the cooking chamber 31 by convecting hot air.

The convection section 36 forcibly flows the air in the internal space of the cooking chamber 31. That is, the convection part 36 is configured to heat the internal space of the cooking chamber 31 by flowing air while sucking and heating the air in the internal space of the cooking chamber 31, discharging the air into the internal space of the cooking chamber 31, Thus, the food in the inner space of the cooking chamber 31 is uniformly heated.

In the oven part (30), a door (32) for selectively opening and closing the cooking chamber (31) is rotatably provided.

The door 32 is formed in a hexahedron shape having a predetermined thickness as a whole. On the front surface of the door 32, a handle 33 is provided so that the user can grip the door 32 when the door 32 is to be rotated. The user can easily rotate the door 32 by the handle 33. [

A control panel 51 is provided on the front surface of the cooktop portion 20, that is, above the door 32. The control panel 51 may be in the form of a hexahedron having a predetermined internal space and a control panel 51 may be provided on the front of the control panel 51. The control panel 51 may include an input unit for inputting operation signals for operating the cooktop unit 20 and the oven unit 30, (52) is provided.

The input unit 52 is provided with a plurality of operation switches through which a user can directly input operation signals.

Further, the control panel 51 may further include a display unit for providing operation information of the buzzer board fixing panel and the cooking apparatus having the buzzer board fixing unit, cooking information of the food, and the like. Various information regarding the cooking apparatus can be confirmed.

An electric field chamber 50 is provided in the space between the cooktop portion 20 and the oven portion 30 to provide a space in which electrical components are located. The control panel 51 is disposed on the front surface of the electrical component chamber 50 and the control panel 51 substantially shields the front surface of the electrical component chamber 50. [

The cooktop 20 of the cooking apparatus according to an embodiment of the present invention includes a cooktop case 23, an upper plate 21, and a burner 100.

The cooktop case 23 forms an outer appearance of the cooker according to the present embodiment. Inside the cooktop case 23, an inner space having an open top is formed.

An upper plate 21 is provided at an open top of the cooktop case 23 to shield the inner space of the cooktop case 23. The upper plate 21 is in the form of a rectangular plate having a predetermined thickness. The upper plate 21 is formed with a through-hole for exposing the burner 100 when viewed from above.

The upper plate 21 is made of stainless steel in the form of a rectangular plate having a predetermined thickness and is excellent in durability and heat resistance because it does not easily rust and does not easily corrode. And an enamel material with enhanced cleanliness, or a tempered glass or ceramic glass form with good heat resistance.

A part of the burner 100 is accommodated in the internal space of the cooktop case 23 and the remaining part of the burner 100 is positioned above the top plate 21 through a through hole formed in the top plate 21. The burner 100 may include a nozzle holder 110, a burner body 120, and burner heads 130 and 140, as shown in FIGS.

The nozzle holder 110 is installed in the internal space of the cooktop case 23 so as to be positioned below the upper plate 21. The nozzle holder 110 is provided with a central nozzle mounting portion 111 on which a center nozzle for supplying gas into the burner 100 is mounted and a side nozzle mounting portion 113 on which the side nozzle is mounted.

The burner heads 130 and 140 are installed on the upper portion of the nozzle holder 110 so as to be positioned above the upper plate 21 and relatively wide in the area of the flame relative to the inner burner head 140 having a relatively small flame area The outer burner head 130 may be concentrically formed.

The inner burner head 140 may be disposed at the center of the burner 100 and may include a diaphragm formed in a disk shape and a side wall formed to protrude at a predetermined height from an outer edge of the diaphragm. A sidewall is formed on the sidewall of the inner burner head 140.

The outer burner head 130 is provided on the outer side of the inner burner head 140. The outer burner head 130 protrudes at a predetermined height on the outer edge of the diaphragm and the diaphragm formed in a ring shape surrounding the inner burner head 140 from outside The side walls being formed. The sidewall of the outer burner head 130 is formed with through holes.

In addition, the burner 100 of the present embodiment may further include burner caps 150 and 160. The burner caps 150 and 160 are configured to cover the open top of the burner heads 130 and 140 and include an inner burner cap 160 that is provided to cover the open top of the inner burner head 140, And an outer burner cap 150 provided to cover the opened upper portion of the burner cap 150. [

The burner caps 150 and 160 are covered on the opened top of the burner heads 130 and 140 so that a space surrounded by the partition plate and the side wall and the inner burner cap 160 is formed inside the inner burner head 140, 130 may be formed with a space surrounded by a diaphragm, a sidewall, and an outer burner cap 150.

The burner caps 150 and 160 installed in this way are used to cover the open upper portion of the burner heads 130 and 140 so that a foreign substance (for example, broth overflowing from the cooking container) flows into the inside burner head 140 or inside the outside burner head 130 So that the gas supplied to the space of the burner heads 130 and 140 flows along the lower surface of the burner caps 150 and 160 so that the gas is discharged to the outside through the air holes formed in the burner heads 130 and 140 Guide.

According to the burner 100 of the present embodiment, the outer burner head 130 may be provided with the first supply passage portion 170 and the inner burner head 140 may be provided with the second supply passage portion 180.

The first supply passage portion 170 is provided with a flow passage through which the gas supplied from the side nozzle mounted on the side nozzle mounting portion 113 of the nozzle holder 110 flows into the space portion inside the outer burner head 130, Air flowing in the inner space of the case 23 is provided to form a flow path for entering the space inside the outer burner head 130.

3 to 5, the first supply passage portion 170 is formed in a hollow shape having a length extending from the diaphragm of the outer burner head 130 to the inner space of the cooktop case 23, As shown in FIG.

According to this, a flow path through which gas and air flow and flows is formed in the first supply flow path portion 170. A first inlet 171 is formed at the lower end of the first supply passage 170 to open the flow path inside the first supply passage 170 toward the inner space of the cooktop case 23. A first outlet 173 is formed in the upper end of the first supply passage 170 to open the flow path inside the first supply passage 170 toward the space inside the outer burner head 130.

4 and 6, the second supply passage 180 is formed so that the gas supplied from the central nozzle mounted on the central nozzle 111 of the nozzle holder 110 flows into the space portion inside the inner burner head 140 And a flow path for flowing air from the upper portion of the upper plate 21 into the space inside the inner burner head 140 is formed.

In this embodiment, the second supply passage portion 180 is illustrated as being formed in the shape of a hollow tube having a length extending from the diverging plate of the inner burner head 140 toward the center nozzle mounting portion 111 side.

According to this, a flow path through which gas and air flow and flows is formed in the second supply flow path portion 180. A second inlet 181 is formed in the lower end of the second supply passage 180 so as to open a passage inside the second supply passage 180 toward a passage through which air flows through the upper portion of the upper plate 21 do. A second outlet 183 is formed in the upper end of the second supply passage 180 so as to open the flow path inside the second supply passage 180 toward the space inside the inner burner head 140.
According to the present embodiment, the upper plate 21 is configured such that air flowing in the internal space of the cooktop case 23 flows into the second supply passage portion 180 or air flowing in the upper portion of the upper plate 21 flows into the first supply portion So that the internal space of the cooktop case 23 is shielded so as not to flow into the flow path portion 170. Between the upper plate 21 and the burner heads 130 and 140, a passage for introducing air through the upper portion of the upper plate 21 may be formed.

Meanwhile, a burner body 120 may be provided between the nozzle holder 110 and the burner heads 130 and 140. The burner body 120 may be installed at a lower portion of the upper plate 21 in the internal space of the cooktop case 23 and may be fixedly installed on the lower surface of the upper plate 21. [

The burner body 120 may be formed in a disk shape corresponding to the bottom surface shape of the burner heads 130 and 140. The burner body 120 is provided with a through portion 121 and a central flow path portion 125. [

As shown in FIGS. 4 and 5, the penetration portion 121 is formed so as to pass through the burner body 120 in the vertical direction. The penetrating portion 121 forms a passage for passing the first supply passage portion 170 inside the burner body 120 and the first supply passage portion 170 provided in the outer burner head 130 The burner body 120 may be vertically penetrated through a passage formed by the penetration portion 121. [

3 and 6, the central flow path portion 125 is provided at a central portion of the burner body 120. [ In this embodiment, the central flow passage portion 125 is illustrated as being formed in the shape of a hollow tube having a length extending from the central portion of the burner body 120 toward the central nozzle mounting portion 111 side.

The center channel portion 125 formed as described above is provided with a center nozzle mounted in the center nozzle mounting portion 111 and a passage connecting the center nozzle and the second outlet 183 to the center of the burner body 120 And is formed at the center portion. The central passage portion 125 is formed to open at an upper portion facing the inner burner 100 and the second outlet portion 183 is opened toward the central passage portion 125.

In addition, the burner 100 of the present embodiment may further include a guide flow path portion 190. The guide channel portion 190 is provided between the burner body 120 and the burner heads 130 and 140 and guides the passage of the air flowing from the upper portion of the upper plate 21 into the central channel portion 125, And is formed between the body 120 and the burner heads 130 and 140.

Referring to FIGS. 3, 4 and 6, the guide passage 190 may include a head protrusion 191 and a body protrusion 193.

The head projecting portion 191 is a structure in which a structure protruding in the form of a rib having a cross section with a cross section on the lower surface of the burner heads 130 and 140 extends from the central portion of the burner heads 130 and 140 toward the rim of the burner heads 130 and 140 .

The body protrusion 193 is formed such that a structure protruding in the form of a rib having a cross section of "└┘" on the upper surface of the burner body 120 extends from the center of the burner body 120 toward the edge of the burner heads 130, .

The guide channel portion 190 is formed in such a manner that the head protrusion portion 191 and the body protrusion portion 193 formed as described above are engaged with each other so as to form a " A passageway is formed.

A third inlet is formed at the outer end of the guide channel portion 190 to open the passage inside the guide channel portion 190 toward the outside of the burner 100 from the upper portion of the upper plate 21. [ A third discharge port 197 is formed at the inner end of the guide passage 190 to open the passage inside the guide passage 190 to the inside of the central passage 125.

The air flowing from the upper portion of the upper plate 21 passes through the inside of the guide flow passage portion 190 through the third inlet 195 and flows through the third outlet 197 into the guide passage portion 190, A passage for flowing into the channel portion 125 is formed.

FIG. 7 is a view showing a primary air supply state to an outside burner head, and FIG. 8 is a view showing a primary air supply state to an inner burner head.

Hereinafter, the operation and effect of the burner and the cooking apparatus having the burner according to the present embodiment will be described with reference to FIGS. 2 to 8. FIG.

3 to 6, the nozzle holder 110 installed in the internal space of the cooktop case 23 is connected to a gas supply pipe for supplying gas, and a central nozzle and a side nozzle are mounted on the nozzle holder 110 do. The central nozzle supplies gas necessary for combustion performed in the inner burner head 140, and the side nozzle is provided to supply gas necessary for combustion performed in the outer burner head 130.

As shown in FIG. 7, the side nozzles are disposed inside the burner 100 at a lower portion of the burner 100, more specifically, at an inner side of the outer burner head 130 The gas injected toward the first supply passage 170 is supplied to the first supply passage 170 through the first inlet 171 and the second supply passage 170 through the first inlet 171, 170). The gas introduced into the first supply passage 170 can be supplied to the space inside the outer burner head 130 through the first outlet 173. [

On the other hand, air can be introduced into the internal space of the cooktop case 23 from the outside of the cooktop portion 20, and the air introduced into the internal space of the cooktop case 23 can be introduced into the cooktop case 23 through the first inlet 171 1 supply path portion 170 along the gas flowing into the first supply path portion 170 and is supplied as primary air to the space portion inside the outer burner head 130. [

The primary air and the gas introduced into the space inside the outer burner head 130 are mixed in the space portion and discharged through the air hole in the form of mixed gas. It can be ignited by the generated spark to form a flame and burn.

The secondary air is supplied to the upper plate 21 and the outer burner head 130 through the outer burner head 130 during the burning operation, A passage formed through a space between the outer burner head 130 and the inner burner head 140, and a passage formed through the space between the outer burner head 130 and the inner burner head 140.

The internal space of the cooktop case 23 is formed with a considerably larger volume than the space between the upper plate 21 and the burner heads 130 and 140 in the lower part of the upper plate 21, A considerably larger amount of air can be introduced than the space between the upper plate 21 and the burner heads 130 and 140. [

According to the present embodiment, the primary air supply to the outside burner head 130 is performed through the first supply passage 170 connected to the internal space of the cooktop case 23. In other words, according to the burner 100 of the present embodiment, the air introduced through the internal space of the cooktop case 23, in which a relatively large amount of air is introduced relative to the space between the top plate 21 and the burner heads 130, Can be supplied as primary air necessary for combustion in the outer burner head 130. [ Thus, a sufficient amount of the primary air supply required for combustion of the outside burner head 130, which forms a flame with a strong thermal power, can be secured.

2 and 7, a cooking chamber 31 for providing a space for cooking food at a lower portion of the cooktop portion 20 is provided at a lower portion of the cooktop portion 20, An oven unit 30 including a door 32 for opening and closing the cooking chamber 31 may be provided.

The cooktop portion 20 and the oven portion 30 may be operated to cook food at different times, but may be operated to cook different foods at the same time.

A process in which the door 32 is opened or closed to insert food into the cooking chamber 31 or to take out food cooked in the cooking chamber 31 while the burner 100 is being burned to cook food in the cooktop portion 20, Especially, when the door 32 closes the cooking chamber 31 and the door 32 and the cooking chamber 31 collide with each other, a sudden change may occur in the flow of air flowing into the internal space of the cooktop case 23 have.

When a sudden change occurs in the flow of the air flowing into the internal space of the cooktop case 23, the burner having a low thermal power of the flame is greatly affected thereby and it is difficult to stably maintain the combustion state. However, Burners with strong firepower will not be greatly affected by this.

According to the present embodiment, since the outer burner head 130 is provided so as to form a flame with a strong thermal power, it is required to secure a sufficient amount of primary air for smooth combustion in the outer burner head 130, Even if a sudden change occurs in the flow of air flowing into the inner space of the outer burner head 23, the influence exerted by the outer burner head 130 is not large.

The primary air supply to the outer burner head 130 in this embodiment is such that the air in the inner space of the cooktop case 23 flows through the first supply passage 170 into the outer burner head 130 As shown in FIG.

Accordingly, the outer burner head 130 can receive a sufficient amount of primary air necessary for forming a flame with a strong thermal power, and can flow into the internal space of the cooktop case 23 due to opening and closing operations of the door 32 The combustion state of the outer burner head 130 can be stably maintained without being greatly affected by the sudden change in the air flow.

Referring to FIG. 8, the burning process of the inner burner head 140 will be described. The central nozzle is disposed inside the burner 100, more specifically, at the center portion of the burner body 120 So that the gas injected toward the central flow path portion 125 flows into the second supply flow path portion 180 through the second inlet 181. In this way, Thus, the gas introduced into the second supply passage 180 can be supplied to the space inside the inner burner head 140 through the second outlet 183.

On the other hand, in the space between the burner heads 130 and 140 located at the upper portion of the upper plate 21 and the upper plate 21, air flowing from the upper portion of the upper plate 21 forms a passage into the central channel portion 125 The guide channel portion 190 is provided.

The air flowing from the upper portion of the upper plate 21 flows into the central passage portion 125 along the passage formed in the guide passage portion 190 provided between the burner heads 130 and 140 and the upper plate 21 have. The air introduced into the central passage portion 125 is sucked into the second supply passage portion 180 along the gas flowing into the second supply passage portion 180 through the second inlet portion 181, And is supplied as primary air to the space inside the head 140.

In this way, the primary air and gas introduced into the space inside the inner burner head 140 are mixed in the space portion and discharged through the air hole in the form of mixed gas. The mixed gas thus discharged is discharged by the spark plug It can be ignited by the generated spark to form a flame and burn.

The secondary air is supplied to the upper plate 21 and the outer burner head 130 during the combustion of the inner burner head 140, A passage formed through a space between the outer burner head 130 and the inner burner head 140, and a passage formed through the space between the outer burner head 130 and the inner burner head 140.

The primary air supply to the inner burner head 140 is connected to the guide channel portion 190 via the guide channel portion 190 connected to the upper portion of the upper plate 21 and the central channel portion 125, Through the second supply passage 180. That is, according to the burner 100 of the present embodiment, the air flowing in the upper portion of the upper plate 21, not the air flowing in the internal space of the cooktop case 23, .

According to the present embodiment, since the inner burner head 140 is provided so as to form a flame with a weaker thermal power than the outer burner head 130, the inner burner head 140 does not affect the influence of the disturbance such as a sudden change in the air flow The supply amount of the primary air required for stable combustion of the inner burner head 140 is relatively small as compared with that of the outer burner head 130 and only the air flowing from the upper portion of the upper plate 21 is supplied Can be fully met.

In view of this, in the present embodiment, the primary air is supplied to the inner burner head 140 so that the air on the upper plate 21 is guided to the guide passage portion 190, the central passage portion 125, And flows into the inside of the inner burner head 140 through the flow path portion 180.

That is, air that is likely to be influenced by disturbance caused by opening and closing of the door 32, such as the air flowing into the internal space of the cooktop case 23, is less likely to be influenced by relative disturbance, The upper air is supplied to the primary air for use in the combustion of the inner burner head 140. [

Accordingly, the inner burner head 140 can be supplied with a sufficient amount of primary air necessary to form a flame with a weak thermal power while being less affected by disturbance.

According to the burner of the present embodiment and the cooking apparatus having the same, the air introduced through the internal space of the cooktop case 23 is supplied as primary air necessary for burning the outer burner head 130, The supply of the primary air may be changed in accordance with the thermal power and the heat amount of the flame formed in the burner heads 130 and 140 in the form of supplying the primary air required for combustion of the inner burner head 140 to other forms .

The burner of the present embodiment and the cooking appliance provided with the burner 100 can provide a sufficient amount of primary air for stable burning of the burner 100 while allowing less influence of disturbance to provide improved combustion stability It is possible to stably maintain the burning state of the burner 100 even when the door 32 is opened and closed for use of the oven part 30, thereby improving convenience for the user.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the true scope of protection of the present invention should be defined by the following claims.

10: Body
20: cook top
21: Top plate
23: Cooktop Case
30: oven part
31: Cooking room
32: Door
100: Burner
110: Nozzle holder
111: central nozzle
113: Side nozzle
120: Burner body
121:
125:
130: outer burner head
140: Inner burner head
150: outer burner cap
160: Inner burner cap
170: first supply passage portion
171: First inlet
173: First outlet
180: the second supply passage portion
181: second inlet
183: Second outlet
190: guide channel portion
191: head protrusion
193: Body protrusion
195: Third inlet
197: Third outlet

Claims (12)

A cooker provided in a cooking apparatus including a cooktop case forming an internal space with an open top and an upper plate covering an open top of the cooktop case,
A nozzle holder installed in an internal space of the cooktop case so as to be positioned below the upper plate and including a central nozzle for supplying gas into the burner and a side nozzle;
A burner head mounted on an upper portion of the nozzle holder so as to be positioned at an upper portion of the upper plate, the burner head including an inner burner head positioned at a center and an outer burner head positioned outside the inner burner head;
A first flow path for flowing gas supplied from the side nozzles into the inside of the outer burner head and a flow path for flowing air flowing in the inner space of the cook top case into the inside of the outside burner head, ; And
And a second supply flow path portion for forming a flow path for the gas supplied from the central nozzle to flow into the inner burner head and a flow path for the air flowing from the upper portion of the upper plate to flow into the inner burner head and,
The upper plate shields the inner space of the cooktop case so that air flowing in the inner space of the cooktop case flows into the second supply passage or air flowing from the upper portion of the upper plate does not flow into the first supply passage ,
Wherein the first supply passage portion is formed in the shape of a hollow tube having a length extending from the outer burner head to the inner space of the cooktop case, and air flowing in the inner space of the cooktop case flows from the lower A flow path for flowing into the inside of the burner head is formed inside,
Wherein a first inlet port for opening the inside of the first supply passage to the inner space side of the cooktop case is formed at a lower end of the first supply passage to be positioned below the upper plate,
A first discharge port for opening the inside of the first supply path portion to the inner side of the outer burner head is formed at an upper end of the first supply path portion so as to be positioned above the upper plate,
Wherein the second supply passage portion is formed in the shape of a hollow tube having a length extending from the inner burner head toward the center nozzle side so that air flowing at an upper portion of the upper plate flows in from the upper portion of the upper plate into the inner burner head The upper surface of the upper plate,
A passage for introducing air through an upper portion of the upper plate is formed between the burner head and the upper plate,
A second inlet port is formed in the lower end of the second supply passage to open the interior of the second supply passage toward a passage through which the air flows through the upper portion of the upper plate,
And a second outlet for opening the interior of the second supply passage to the inside of the inner burner head is formed at the upper end of the second supply passage.
delete delete The method according to claim 1,
Further comprising a burner body disposed between the nozzle holder and the burner head so as to be positioned below the upper plate,
Wherein the burner body is provided with a central flow path portion which accommodates the central nozzle and forms a passage connecting the central nozzle and the second inlet.
5. The method of claim 4,
Wherein the central passage portion is formed so that an upper portion facing the inner burner head is opened,
And the second inlet port is opened toward the central flow path portion.
5. The method of claim 4,
And a guide flow path portion provided between the burner body and the burner head to form a passage through which air flowing from the upper portion of the upper plate flows into the central passage portion.
The method according to claim 6,
At the outer end of the guide channel portion. A third inlet opening for opening the inside of the guide channel portion from the upper portion of the upper plate toward the outside of the burner,
And a third discharge port is formed in the inner end of the guide passage portion so as to open the inside of the guide passage portion to the inner side of the central passage portion.
8. The method of claim 7,
The guide passage portion includes a head protrusion protruding in the form of a rib having a "?" -Shaped cross section on the lower surface of the burner head and a rib protruding in the form of a rib having a "?" Shape on the upper surface of the burner body Wherein the body protrusion is formed to engage so as to form a cross section of "ㅁ" shape.
A cooktop case forming an inner space having an open top;
An upper plate which is covered on an open upper portion of the cooktop case and in which an opening hole for opening an internal space of the cooktop case to an upper portion of the cooktop case is formed; And
And a burner installed to be positioned in the opening hole,
The burner includes:
A nozzle holder installed in an internal space of the cooktop case so as to be positioned below the upper plate and including a central nozzle for supplying gas into the burner and a side nozzle;
A burner head mounted on an upper portion of the nozzle holder so as to be positioned at an upper portion of the upper plate, the burner head including an inner burner head positioned at a center and an outer burner head positioned outside the inner burner head;
A first flow path for flowing gas supplied from the side nozzles into the inside of the outer burner head and a flow path for flowing air flowing in the inner space of the cook top case into the inside of the outside burner head, ; And
And a second supply flow path portion for forming a flow path for the gas supplied from the central nozzle to flow into the inner burner head and a flow path for the air flowing from the upper portion of the upper plate to flow into the inner burner head and,
The upper plate shields the inner space of the cooktop case so that air flowing in the inner space of the cooktop case flows into the second supply passage or air flowing from the upper portion of the upper plate does not flow into the first supply passage ,
Wherein the first supply passage portion is formed in the shape of a hollow tube having a length extending from the outer burner head to the inner space of the cooktop case, and air flowing in the inner space of the cooktop case flows from the lower A flow path for flowing into the inside of the burner head is formed inside,
Wherein a first inlet port for opening the inside of the first supply passage to the inner space side of the cooktop case is formed at a lower end of the first supply passage to be positioned below the upper plate,
A first discharge port for opening the inside of the first supply path portion to the inner side of the outer burner head is formed at an upper end of the first supply path portion so as to be positioned above the upper plate,
Wherein the second supply passage portion is formed in the shape of a hollow tube having a length extending from the inner burner head toward the center nozzle side so that air flowing at an upper portion of the upper plate flows in from the upper portion of the upper plate into the inner burner head The upper surface of the upper plate,
A passage for introducing air through an upper portion of the upper plate is formed between the burner head and the upper plate,
A second inlet port is formed in the lower end of the second supply passage to open the interior of the second supply passage toward a passage through which the air flows through the upper portion of the upper plate,
And a second outlet for opening the interior of the second supply passage to the inside of the inner burner head is formed at the upper end of the second supply passage.
10. The method of claim 9,
A cooktop provided with the cooktop case, the upper plate and the burner; And
A cooking chamber provided at a lower portion of the cooktop and providing a space for cooking food; and an oven including a door rotatably installed in the cooking chamber to open and close the cooking chamber.
11. The method according to claim 9 or 10,
Wherein the burner further comprises a burner body provided between the nozzle holder and the burner head so as to be positioned below the upper plate,
Wherein the burner body is provided with a central flow path portion which accommodates the central nozzle and forms a passage connecting the central nozzle and the second outlet,
The burner further includes a guide channel part provided between the burner body and the burner head to form a passage through which air flowing from the upper part of the upper plate flows into the central channel part,
Wherein the guide channel portion is disposed in a space between the burner head and the upper plate located at an upper portion of the upper plate.
12. The method of claim 11,
Air introduced into the first supply path portion in the internal space of the cooktop case flows into the inside of the outside burner head through the first supply path portion and is supplied as primary air to the inside of the outside burner head,
Wherein the air introduced into the central channel portion through the guide channel portion from the upper portion of the upper plate flows into the inner burner head through the second supply channel portion and is supplied into the inner burner head as primary air, device.

Images