KR20120020774A - A heating device of cooking appliance - Google Patents

Abstract

PURPOSE: A heating device for a cooking appliance is provided to uniformly distribute mixed gas supplied to the inside a burner port by forming a guide in one side of the burner port. CONSTITUTION: A heating device for a cooking appliance comprises multiple burner ports and a nozzle assembly(400). The burner ports have receiving spaces for mixed gas. The nozzle assembly supplies mixed gas from one side of the burner ports to the inside the burner ports. Guides(900) are formed in the burner ports which are formed outermost and uniformly distribute the mixed gas supplied through the nozzle assembly.

Description

A heating device of cooking appliance}

The present invention relates to a heating apparatus for a cooking appliance using gas.

The cooking appliance is configured to heat food using at least one of electricity and fuel as one of the kitchen appliances for cooking food. To this end, the cooking apparatus includes a cooking space in which food is placed and a heating device for dissipating heat toward the food.

In general, a cooking apparatus using a gas receives a gas and burns the flame to generate the flame. In addition, the cooking process may be performed by directly heating the container or food containing the food using the flame generated as described above.

On the other hand, in a cooking apparatus using a conventional gas, the flame generated by the heating apparatus is exposed to the outside. Therefore, there is a problem that a particular portion of the cooking vessel vulnerable to heat in the cooking process may be damaged. In addition, even when the cooking vessel is not damaged as described above, there is a problem that the user may be burned if the user inadvertently grips the cooking vessel directly heated by the flame.

In order to solve this problem, recently, a ceramic plate is provided on the upper surface, and a heating apparatus has been developed and used to prevent the flame from being exposed to the outside.

The heating apparatus as described above is configured to supply a mixed gas to the burner port through the nozzle under the ceramic plate and to burn it.

However, in the related art, since the gas supplied to the burner port is supplied while being strongly injected into the burner port, the gas pressure locally rises while the gas collides with one side of the burner port at the initial injection position. In addition, due to such an increase in gas pressure, the intensity of the flame during gas combustion is changed.

In addition, when the gas is supplied as described above, there is a problem in that the ignition performance is reduced while a difference occurs in the rate of fire during initial ignition inside the burner port.

SUMMARY OF THE INVENTION An object of the present invention is to provide a heating apparatus for a cooking appliance, which includes a guide for smoothly diffusing a mixed gas supplied to one side of a burner port, so that the mixed gas supplied into the burner port can be uniformly distributed. will be.

Another object of the present invention is to provide a heating device of a cooking appliance in which the mixed gas distribution in the burner port is made uniform, thereby improving the ignition performance by improving the fire transfer speed during the initial ignition.

The present invention includes a plurality of burner ports which provide a mixed gas receiving space of at least gas and air and are separated from each other, and a nozzle assembly for supplying the mixed gas to each burner port on one side of the plurality of burner ports, and The burner port provided on the outside is characterized in that the guide is provided so that the mixed gas supplied through the nozzle assembly can be evenly distributed.

In another aspect, the present invention is an inner port for providing a mixed gas receiving space of at least gas and air, an outer port formed to surround the inner port and partitioned to form another receiving space of the mixed gas, and the inner port And a nozzle assembly having a plurality of mixing pipes connected to one side of the outer port and separately supplying the mixed gas, and a nozzle connected to the mixing pipe for supplying the gas, wherein the outer port is connected to the mixing pipe. Characterized in that the guide is provided for dispersing the mixed air flowing from the upper side of the discharge port.

According to the present invention, while the gas is supplied into the burner port, the gas is diffused by the guide and the gas is evenly dispersed into the burner port.

Therefore, when the ignition is made while the pressure difference inside the burner port is eliminated, the light brightness exposed to the outside of the top cover can be maintained uniformly.

In addition, as described above, the gas is uniformly distributed in the burner port by the guide, thereby increasing the speed of fire ignition during initial ignition, thereby improving ignition performance.

1 is a view showing an embodiment of a cooking appliance according to the present invention.
2 is an exploded perspective view of an example of a cooking appliance according to the present invention;
3 is an exploded perspective view of a heating apparatus of a cooking appliance according to the present invention;
Figure 4 is a view showing a burner port and the guide installed therein the main components of the embodiment according to the present invention.
FIG. 5 is a sectional view taken along the line II ′ of FIG. 4. FIG.

Hereinafter, with reference to the drawings will be described a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention can easily suggest other embodiments within the scope of the same idea.

1 is a view showing an embodiment of a cooking appliance according to the present invention, Figure 2 is an exploded perspective view of an embodiment of the cooking appliance according to the present invention.

And, Figure 3 is an exploded perspective view of the heating apparatus of the cooking apparatus according to the embodiment of the present invention.

Referring to this, the cooking apparatus 10 according to the present invention is the majority of the appearance is formed by the main body 100 and the top cover 600.

The main body 100 is formed so that the upper surface is opened, the inside is provided with a heating device to be described below. Therefore, a plurality of cooling holes 110 are provided on the bottom surface of the main body 100 so that at least the heating device is cooled by air.

The heating apparatus provided in the main body 100 includes a plurality of burner assemblies 200 for mixing gas and air and burning a mixed gas, and a nozzle assembly for supplying a mixed gas to the burner assembly 200 ( 400, a mixing pipe assembly 300 connected thereto, and a controller 500 for controlling the components.

The nozzle assembly 400 supplies a gas for combustion at a high pressure, and gas and air supplied at a high pressure from the mixing tube assembly 300 are mixed to supply a mixed gas to the burner assembly 200. In addition, the burner assembly 200 generates heat necessary for cooking by burning the mixed gas supplied as described above.

The control unit 500 may be provided with a valve assembly 510 and a knob 520 to adjust the intensity of fire by directly adjusting the supply amount of gas, or control for ignition and extinguishing. That is, the user controls the valve assembly 510 connected thereto by operating the knob 520 to perform the ignition and extinguishing functions as well as the gas supply amount.

In addition, a display lamp 530 is provided at one side of the knob 520 to selectively emit light according to whether the burner assembly 200 is ignited so that the user can confirm the ignition state of the burner assembly 200. Make sure

On the other hand, the top cover 600 is configured to include a top frame 610 and a top glass 620.

The top frame 610 is formed in a frame shape corresponding to the main body 100 and seated on an upper end of the main body 100. In addition, the front side of the top frame 610 is formed so that a predetermined area has a downward slope, the knob hole 611 and the lamp hole so that the knob 520 and the display lamp 530 can be mounted on the inclined surface. 613 is perforated.

In addition, the rear side of the top frame 610 is provided with an intake and exhaust opening 615 so that the air for burning the gas in the burner assembly 200 is sucked, the combustion gas generated in the combustion process of the gas is discharged. .

The intake and exhaust openings 615 may be divided into a plurality according to the number of burner ports to be described below, and the vent grill 700 may be mounted on the upper side thereof.

The vent grill 700 serves to guide the suction of the air flowing through the intake and exhaust opening 615 and the discharge of the combustion gas. To this end, the vent grill 700 is formed so that the exhaust hole 720 and the intake hole 710 are distinguished, and the intake hole 710 is located behind the exhaust hole 720 to perform a kind of air curtain function. do.

Therefore, the phenomenon that the wall surface of the kitchen corresponding to the rear of the cooking apparatus 10 by the combustion gas discharged through the exhaust hole 720 can be minimized.

On the other hand, the top glass 620 is installed inside the top frame 610. The top glass 620 serves to transfer the heat generated by the combustion of the mixed gas in the burner assembly 200 to the food.

That is, the top glass 620 transfers the heat of the burner assembly 200 provided on the lower side to a container seated on the upper surface thereof so that the food can be cooked, and is formed of ceramic glass having excellent heat resistance. Although not shown, a container seating portion is further formed on the top surface of the top glass 620 so that heat can be effectively transmitted in a state in which the container is correctly seated on the burner assembly 200.

On the other hand, the burner assembly 200 includes a combustion unit, an ignition unit and an exhaust unit.

The combustion unit is a place where combustion of the mixed gas occurs, and includes a plurality of burner ports and a combustion plate 230 provided above the burner port. The burner port includes an outer port 210 that is provided on the outer side, and an inner port 220 and a combustion plate 230 formed inside the outer port 210.

The outer port 210 and the inner port 220 are substantially a portion of the combustion of the mixed gas. In addition, the mixed gas combustion in the outer port 210 and the inner port 220 may be selectively performed. That is, as the user manipulates the knob 520, the supply of the gas to the outer port 210 and the inner port 220 is selectively performed by the valve assembly 510, so that combustion of the mixed gas may be performed separately. .

The outer port 210 is formed so that the upper surface is opened, there is provided a predetermined space in which the mixed gas is supplied and accommodated therein. In addition, the rear portion of the outer port 210 formed as described above is provided with a fixing portion 211 so that the mixing tube assembly 300 is fixed.

In addition, a plurality of mixed gas supply holes are formed in the outer port 210.

The mixed gas supply hole is for supplying a mixed gas to the outer port 210 and the inner port 220 and is in communication with the mixing pipe assembly 300. Hereinafter, the first supply hole 213 for supplying the mixed gas to the outer port 210 and the second supply hole 214 for supplying the mixed gas to the inner port 220 are divided into the first supply hole. One 213 is provided at each of the left and right sides of the second supply hole 214.

On the other hand, the inner surface of the outer port 210 is provided with a plate seating portion 215. The plate seating portion 215 is a portion where the bottom edge of the combustion plate 230 is seated, and a portion of the inner circumference of the upper surface of the outer port 210 downwards by a thickness corresponding to the edge of the combustion plate 230. It is formed by stepping.

In addition, a support flange 217 is provided at the upper edge of the outer port 210. The support flange 217 extends radially from an upper edge of the outer port 210, and a bottom surface of the standing burner band 250 is supported on an upper surface of the support flange 217.

The inner port 220 is positioned inside the outer port 210 to form an accommodation space of the mixed gas separated from the outer port 210. In this embodiment, the inner port 220 is formed to have a relatively small size while being concentric with the outer port 210 and is formed to be wrapped by the outer port 210.

In addition, the inner port 220 has a communication hole 221 is formed. The communication hole 221 is configured to allow the mixed gas supplied through the second supply hole 214 to flow into the inner port 220. To this end, the inner port 220 is further provided with a connecting tube 223 such that the second mixing pipe 320 passing through the second supply hole 214 can be located in correspondence with the communication hole 221. do.

In addition, the inner port 220 is provided with an ignition guide unit 225. The ignition guide unit 225 is for causing the mixed gas supplied to the combustion plate 230 to be ignited by the plug assembly 240 to be described below. To this end, the ignition guide portion 225 extends in the direction of the plug assembly 240 to allow a mixed gas to be supplied to the vicinity of the plug assembly 240 and to be in contact with the outer port 210.

On the other hand, the outer port 210 and the inner port 220 is provided with gas induction ribs 219, 229 protruding upward from the bottom surface so that the mixed gas can be more smoothly supplied to the combustion plate 230. .

In detail, the outer port 210 is formed with a gas induction rib 219 protruding upward with a corresponding curvature at a position spaced apart from the outer circumferential surface of the inner port 220 by a predetermined distance, and the inner port 220 A rod-shaped gas guide rib 229 protruding upward from the center is provided.

That is, the gas guide ribs 219 and 229 are configured to allow a smoother supply of the mixed gas to the combustion plate 230 by pushing the supplied mixed gas upward.

The combustion plate 230 is a place where the combustion of the mixed gas substantially occurs, it may be formed of a ceramic material.

The bottom edge of the combustion plate 230 is seated on the plate seating portion 215, and the center portion is seated on an upper end of the inner port 220. An upper end of the combustion plate 230 seated as described above is located above the upper surface of the support flange 217. To this end, the edge of the combustion plate 230 may be formed such that a portion thereof is stepped downward.

The ignition unit is a place for generating a spark for burning the mixed gas in the combustion unit. In the present embodiment, the plug assembly 240 constitutes an ignition unit.

The plug assembly 240 includes a spark plug 241 and a plug target 242. Power is selectively applied to the spark plug 241.

In addition, the plug target 242 is formed of a metal material to enable ignition while generating a spark when power is applied to the spark plug 241.

The plug assembly 240 is installed through the burner vant 250 to be described below, and end portions of the spark plug 241 and the plug target 242 substantially generating sparks are formed on the combustion plate 230. Located directly above.

In addition, the inside of the outer port 210 is provided with a guide 900 for dispersing the gas supplied from the lower side of the combustion plate 230.

The guide 900 is to prevent the mixed gas flowing into the outer port 210 is concentrated on a specific portion of the outer port 210, the description thereof will be described in detail below.

The exhaust part serves to guide the exhaust of the combustion gas generated in the process of burning the gas. To this end, the exhaust unit includes a burner band 250 and a barrier 260.

The burner vant 250 is provided above the outer port 210, the inner port 220, and the combustion plate 230. The burner vant 250 includes a first burner vant 251 and a second burner vant 256. The first and second burner bands 256 may be integrally molded or separately molded and fixed to each other by welding or fasteners.

The first burner vant 251 is formed in a disc shape whose bottom surface corresponds to a cross section of the outer port 210. The first burner vant 251 serves to guide the combustion gas generated in the process of burning the mixed gas in the combustion plate 230 to the second burner vant 256.

In addition, the second burner vant 256 serves to guide the combustion gas received from the first burner vant 251 to the vant grill 700. In addition, the first burner vant 251 may also be fixed to the outer port 210 to fix the combustion plate 230.

A heat transfer opening 252 is formed at a central portion of the first burner vant 251 to transfer heat generated in the combustion plate 230 to burn the mixed gas to the top glass 620. The heat transfer opening 252 is formed in a shape corresponding to the upper surface of the combustion plate 230. Therefore, the upper surface of the combustion plate 230 is substantially inserted into the heat transfer opening 252 in the process of fixing the first burner vant 251 to the outer port 210, thereby burning the outer port 210 and the combustion. The relative position of the plate 230 and burner vant 250 may be guided.

On the other hand, the first burner band 251 is provided with a guide rib 253. The guide rib 253 of the first burner vant 251 may be configured such that the second burner vant 256 is substantially not dispersed to the outside of the combustion gas generated during the combustion of the mixed gas in the combustion plate 230. It serves as a guide. In addition, the guide rib 253 of the first burner vant 251 is the tower corresponding to the upper portion of the combustion plate 230 without the heat generated in the process of burning the mixed gas in the combustion plate 230 is dispersed. It serves to concentrate the glass 620. The guide rib 253 of the first burner vant 251 extends upward from the upper edge of the first burner vant 251 except for the rear end of the first burner vant 251.

The first burner band 251 is provided with a first glass support rib 254. The first glass support rib 254 is for supporting a rear surface of the top glass 620. The first glass support rib 254 extends from the upper end of the guide rib 253 of the first burner vane 251 to the outside of the first burner vane 251.

A plurality of coupling holes 255 are formed on the bottom surface of the first burner vant 251 adjacent to the heat transfer opening 252. The coupling hole 255 is for fixing the first burner band 251 to the outer port 210.

The second burner band 256 has a bottom surface of a rectangular plate shape. As described above, the second burner vant 256 serves to guide the combustion gas received from the first burner vant 251 to the vant grill 700. The second burner vant 256 is connected to a rear end of the first burner vant 251 in which the guide rib 253 of the first burner vant 251 is not provided.

Guide ribs are provided at both end portions of the second burner vant 256 similarly to the first burner vant 251, and second glass support ribs 258 are provided above the guide ribs.

The second glass support ribs 258 extend from both ends of the guide ribs of the second burner band 256. The second glass support rib 258 serves to support the top glass 620 in the same manner as the first glass support rib 254. In addition, a through hole 259 is formed in the second burner band 256. The through hole 259 is for fixing the second burner band 256 and the barrier 260.

The barrier 260 is coupled to an upper portion of the second burner vant 256 and is positioned substantially between the top glass 620 and the second burner vant 256. The barriers 260 are formed in a “c” shape in which both sides of the outer side are opened substantially downward so as to be in close contact with the inside of the guide rib of the second burner band 256, respectively.

At this time, the rear end of the barrier 260 is spaced apart from the rear end of the second burner band 256 by a predetermined distance. Accordingly, an exhaust flow path through which the combustion gas generated in the process of burning the mixed gas in the combustion plate 230 is formed by the second burner band 256 and the barrier 260. The combustion gas flowing through the exhaust passage is discharged through a gap between the second burner band 256 and the barrier 260.

A plurality of fastening holes 261 are formed in the barrier 260. The fastening holes 261 are provided at both side surfaces of the barrier 260. That is, the fastening member (not shown) is fastened to the fastening hole 261 after passing through the through hole 259 of the second burner vant 256, thereby the barrier 260 and the second burner vant 256. Is fixed.

An exhaust guide 263 is provided at the rear end of the upper surface of the barrier 260. The exhaust guide 263 is for guiding the combustion gas flowing through the exhaust passage to the vent grill 700. To this end, the exhaust guide 263 extends upward from the rear end of the upper surface of the barrier 260.

In addition, the barrier 260 is provided with compartment ribs 265. The compartment rib 265 partitions the combustion gas guided to the vent grill 700 through the exhaust passage of the burner assembly 200. To this end, the compartment rib 265 of the barrier 260 extends rearward from both end portions of the exhaust guide 263.

The mixing tube assembly 300 substantially mixes gas and air and simultaneously serves to supply the mixed gas into the outer port 210 and the inner port 220. To this end, the mixing pipe assembly 300 includes a cylindrical first supply pipe 310 and a second supply pipe 320 having an outer diameter corresponding to the inner diameters of the first supply hole 213 and the second supply hole 214. Include.

Here, the second supply pipe 320 is formed relatively longer than the first supply pipe 310 to supply the mixed gas to the inner port 220. That is, the first supply pipe 310 is formed longer than the first supply pipe 310 so as to pass through the second supply hole 214 to be connected to the connection tube 223 described above. In order to supply the mixed gas to both the left and right sides of the 210, the second supply pipe 320 is provided on both left and right sides, respectively.

Accordingly, the first discharge port 313, which is an end of the first supply pipe 310, communicates with the first supply hole 213 in which the outer port 210 is formed, and is a second end of the second supply pipe 320. The discharge port 314 may be located inside the connection tube 223 and connected to the communication hole 221 to supply the mixed gas.

The other ends of the first supply pipe 310 and the second supply pipe 320 are spaced apart from each other by the same interval as the nozzle assembly 400. In addition, connecting ribs 340 may be further provided at the other ends of the first supply pipe 310 and the second supply pipe 320 to maintain the same front and rear gaps.

The first supply pipe 310 and the second supply pipe 320 are coupled to the fixing part 211 in a fixed state so that the same spacing is maintained by the plate-shaped contact part 330.

That is, the close contact portion 330 connects the first supply pipe 310 and the second supply pipe 320 and at the same time the mixing tube assembly 300 is fixed to the burner assembly 200 so that the gas can be smoothly supplied. To help.

In addition, although not shown, a gasket may be provided between the fixing part 211 and the contact part 330 to prevent leakage of the mixed gas.

On the other hand, the nozzle assembly 400 includes a nozzle body 410 and a plurality of injection nozzles (430).

And, the rear of the nozzle body 410 is provided with a hose connecting portion (not shown). The hose connector is connected to the gas hose is configured to supply the gas to be burned gas to the nozzle body (410).

Three injection holes 412 are formed on the front surface of the nozzle body 410. The injection hole 412 is for injecting the gas supplied into the nozzle body 410 through the injection nozzle 430. The injection hole 412 is provided on the front surface of the nozzle body 410 to correspond to the first mixing tube 310 and the second mixing tube 320.

Hereinafter, the operation of the heating apparatus having the above configuration will be described.

4 is a view showing a burner port, which is a main component of an embodiment, and a guide installed therein, and FIG. 5 is a sectional view taken along the line II ′ of FIG. 4.

Referring to these drawings, the outer port 220 is provided with the guide 900 on the upper side of the first supply hole 213 in communication with the first discharge port 313 and the mixed gas flows.

As described above, the guide 900 is a flat plate and is formed such that its width corresponds to a bottom surface of the outer port 210.

In addition, the guide 900 is formed to have a length of at least the diameter of the first mixing tube 310, the diameter of the first mixing tube 310 and the diameter of the first supply hole 213 are mutually Corresponding.

As a result, the guide 900 is formed to have a width corresponding to the bottom surface of the outer port 210 while having a length greater than the diameter of the first supply hole 213, so that The mixed gas flowing from the upper side is dispersed to the left and right sides of the bottom surface of the guide 900.

To this end, the guide 900 is provided at a position higher than an upper end of the first supply hole 213 communicating with the first discharge port 313 and lower than an upper end of the inner port 220.

As a result, a space having a height equal to “B” is formed below the guide 900 and a space having a height equal to “A” is formed above the guide 900.

Therefore, the mixed gas supplied to the outer port 210 through the first discharge port 313 of the first mixing tube 310 is not concentrated between the outer port 210 and the connection tube 223, and It is distributed from side to side by the guide 900.

That is, the mixed gas supplied to the outer port 210 through the first discharge port 313 is dispersed at right and left along the bottom surface of the guide 900 while being injected at high pressure into the “B” space. In addition, the mixed gas dispersed as described above may fill the “A” space while flowing in the outer port 210 again, and thus the mixed gas distribution in the outer port 210 may be uniformly formed.

In addition, the guide 900 is provided with a number corresponding to the number of the mixing pipe connected to the outer port 210. That is, in the present exemplary embodiment, since the first mixing pipe 310 for supplying the mixed gas to the outer port 210 is provided on each of the left and right sides of the second mixing pipe 320, the first guide 910 and The second guide 920 is provided at a position corresponding thereto, respectively.

On the other hand, as described above, when the mixed gas is uniformly distributed in the outer port 210 by the guide 900, the gas is more effectively supplied to the combustion plate 230 which substantially causes combustion.

Therefore, when the voltage is applied to the ignition plug 241, the combustion plate 230 is ignited at a higher speed. In addition, the ignition state may be maintained while exhibiting a uniform flame state to the outside of the top glass 620 by the uniform mixed gas distribution inside the outer port 210.

100 ..... body 200 ..... burner assembly
210 ..... Outer port 220 ..... Inner port
300 ..... Mixer Assembly 400 ..... Nozzle Assembly
600 ..... Top Cover 700 ..... Vent Grill
900 ..... Guide

Claims (7)

A plurality of burner ports which provide at least gas and air mixed gas accommodation spaces and are partitioned from each other;
And a nozzle assembly supplying the mixed gas to each burner port at one side of the plurality of burner ports.
The burner port provided on the outer side is a heating device of the cooking appliance provided with a guide for evenly dispersing the mixed gas supplied through the nozzle assembly.
An inner port providing at least a gas and air mixed gas accommodation space;
An outer port formed to surround the inner port and partitioned to form another accommodation space of the mixed gas;
And a nozzle assembly having a plurality of mixing pipes connected to one side of the inner port and the outer port, respectively, for supplying the mixed gas, and a nozzle connected to the mixing pipe for supplying the gas.
In the outer port,
And a guide for dispersing the mixed air introduced from the upper side of the discharge port of the connected mixing pipe. The method of claim 2, wherein the guide,
And a flat plate-shaped plate having a width corresponding to a bottom surface of the outer port.
The method of claim 3, wherein the guide,
Heating device of the cooking appliance formed to have a length of at least the diameter of the mixing tube.
The method of claim 2, wherein the guide,
Heating device of the cooking appliance is provided at a position higher than the upper end of the discharge port of the mixing tube, lower than the upper end of the inner pot.
The method of claim 2, wherein the guide,
Heating device of the cooking appliance provided with a number corresponding to the number of the mixing pipe connected to the outer port.
The method of claim 2,
The inner port and the outer port protruding upward from the bottom surface is provided with a gas induction rib for guiding the flow of the supplied gas to the upper side heating device of a cooking appliance.

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