WO2010013931A2

WO2010013931A2 - Cooking appliance

Info

Publication number: WO2010013931A2
Application number: PCT/KR2009/004201
Authority: WO
Inventors: 김양호; 류정완; 위재혁; 양대봉; 임재범; 김영수; 이대래; 정용기; 석준호
Original assignee: 엘지전자 주식회사
Priority date: 2008-07-28
Filing date: 2009-07-28
Publication date: 2010-02-04
Also published as: WO2010013931A3; US20110265781A1

Abstract

The embodiment of the present invention relates to a cooking appliance. The cooking appliance comprises a cavity and a burner. A cooking chamber is formed in the cavity and the burner is positioned inside the cavity. A gaseous mixture of gas and air is supplied to the burner and the burner generates flames by burning the gas mixture. The burner comprises: a supply unit for supplying gas and air; and one or more combustion units which have a plurality of flame holes for generating flames, wherein gas and air are supplied to the combustion units from the supply unit. Gaps are formed between the flame holes of the combustion units and enables flame transfer by being connected to one another.

Description

Cooker

This embodiment relates to a cooking appliance.

Cooking equipment is a device for heating food using a heating source. As the heating source, for example, a burner that generates heat by burning gas may be used.

The burner includes a plurality of salt holes in which gas is burned, and the plurality of salt holes are disposed at a predetermined interval.

An object of the present embodiment relates to a cooking appliance for smooth flame transfer to adjacent salt holes.

In the cooking appliance according to one aspect, the cooking appliance, a cavity in which a cooking chamber is formed; And a burner positioned inside the cavity and supplied with a mixed gas of gas and air, and combusting the mixed gas to generate a flame. And at least one combustion unit receiving gas and air from the supply unit and having a plurality of flame holes for generating a flame, wherein the combustion unit communicates between the plurality of salt holes to form a gap to enable flame transfer. It is characterized by.

In another aspect, a cooking apparatus includes: a cavity in which a cooking chamber is formed; And a burner disposed inside the cavity and having a supply part for supplying gas and air, and one or more combustion parts provided with a plurality of flame holes for supplying gas and air from the supply part and generating a flame. The upper part and the lower case is included, one of the upper case and the lower case is formed with a plurality of salt hole forming parts for forming the plurality of salt holes spaced apart, two adjacent salt hole forming parts are connected by a connecting portion When the upper case is coupled to the lower case, the connection part is spaced apart from one part of the other one of the upper case and the lower case facing this.

According to the proposed embodiment, since the spacing between the ends of adjacent salt holes is smaller than other portions, the flame generated in one salt hole can be more easily transferred to the adjacent salt holes.

In addition, as the gap is formed for communicating between the plurality of salt holes in the combustion unit, there is an advantage that the flame transfer between adjacent salt holes can be made smoothly.

In addition, as the flame transfer between adjacent salt holes is made smoothly, the flame intensity (salt hole load) can be substantially uniform in the whole of the plurality of salt holes. As such, when the flame intensity becomes substantially uniform throughout the plurality of salt holes, uniform heating of the food is possible.

1 is a perspective view of a cooking appliance according to the present embodiment.

2 is a perspective view of the oven burner and the reflector according to the present embodiment.

3 is a bottom view of the oven burner according to the embodiment.

4 is a side view showing the flame structure of the oven burner.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a cooking appliance according to the present embodiment, and FIG. 2 is a perspective view of the oven burner and the reflector according to the present embodiment.

1 and 2, the cooking appliance 1 according to the present embodiment includes a cooktop unit 100, an oven unit 200, a drawer unit 300, and a control unit 400.

The cooktop part 100, the oven part 200, and the drawer part 300 are provided at the upper part, the center part, and the lower part of the main body 10 of the cooking apparatus 1, respectively. The control unit 400 is provided at the rear end of the upper surface of the main body 10 corresponding to the rear of the cooktop unit 100.

The cooktop part 100 includes a plurality of cooktop burners 110. The cooktop burner 110 cooks food by directly heating a container in which food is contained in a flame generated by burning a gas.

A plurality of knobs 120 are provided at the front end of the cooktop 100. The knob 120 controls the opening or closing of a valve (not shown) for controlling the supply and supply of gas to the cooktop burner 110.

The oven unit 200 includes a cavity 210 forming a cooking chamber 211 for cooking food. An interior of the cavity 210 includes an oven burner 500 for heating food contained in the cooking chamber 211 and a reflector 600 provided above the oven burner 500. Of course, although not shown, an additional heating source may be further provided inside or outside the cavity 210 for heating food contained in the cooking chamber 211 in addition to the oven burner 500.

The cooking chamber 211 is selectively opened and closed by the door 220. The door 220 opens and closes the cooking chamber 211 in a pull-down manner in which an upper end rotates up and down about its lower end. A handle 221 gripped by a user by a hand for rotation of the door 220 is provided at the upper front of the door 220.

The drawer unit 300 serves to insulate a container in which food is contained, at a predetermined temperature. The drawer unit 300 includes a drawer 310 for receiving a container.

The control unit 400 may operate at least one of an operation signal for operating the cooking appliance 1, more specifically, the cooktop unit 100, the oven unit 200, and the drawer unit 300. Receive an operation signal for In addition, the control unit 400 also serves to display various information about the operation of the cooking appliance 1 to the outside.

The oven burner 500 is disposed above the interior of the cavity 210. The oven burner 500 serves to directly radiate food in the cooking chamber 211 by a flame generated by burning gas.

3 is a bottom view of the oven burner according to the present embodiment, Figure 4 is a side view showing the salt hole structure of the oven burner.

2 to 4, the oven burner 500 includes a supply unit 510 for supplying a mixed gas of gas and air, a plurality of

combustion units

530, 550, and 570, and the supply unit 510. Distribution unit 520 for distributing the mixed gas supplied from the plurality of

combustion units

530, 550, 570, and a communication unit 590 for communicating the plurality of

combustion units

530, 550, 570. Included. The plurality of

combustion units

530, 550, and 570 constitute a combustion unit.

The supply unit 510 serves to deliver the gas supplied from the nozzle (not shown) and the air introduced together in the process of supplying the gas to the distribution unit 520.

In addition, an end portion of the supply part 510 penetrates through a side wall of the cavity 210. Unlike this, a part of the nozzle may be aligned with an end of the supply part 510 through the side wall of the cavity 210.

Gas and air introduced into the supply unit 510 are mixed while flowing inside the supply unit 510 and are delivered to the distribution unit 520 in the form of mixed gas.

The plurality of

combustion units

530, 550, and 570 include a first combustion unit 530, a second combustion unit 550, and a third combustion unit 570.

In detail, the first combustion unit 530 is formed in a straight line shape and extends in the front-rear direction of the cavity 210 in a state in which the oven burner 500 is disposed inside the cavity 210.

The second combustion unit 550 and the third combustion unit 570 may include

auxiliary parts

552 and 572 extending substantially perpendicular to the first combustion part 530 in the distribution part 520, and the auxiliary part.

Main parts

554 and 574 that are bent at 552 and 572 and substantially parallel to the first combustion unit 530 are included. Accordingly, the main part 554 of the second combustion part 550 is located at one side of the first combustion part 530, and the third combustion is located at the other side of the first combustion part 530. The main part 574 of the part 570 is located.

The supply part 510 may be disposed to be substantially parallel to each of the

auxiliary parts

552 and 572, and a connection part with the distribution part 520 may be bent. Thus, the supply unit 510 extends from the distribution unit 520 to the second combustion unit 550 or the third combustion unit 570. In FIG. 3, for example, the supply unit extends toward the third combustion unit 570.

Therefore, the gas and air flowing inside the supply unit 510 are diverted at the connection portion between the distribution unit 520 and the supply unit 510 and flow to the distribution unit 520.

At this time, since the flow direction of the gas and air flowing into the distribution unit 520 and the extending direction of the first combustion unit 530 are substantially the same, the gas and air are discharged from the distribution unit 520 in the first direction. The combustion unit 530 may move a lot. Accordingly, the distribution unit 520 may be provided with a distribution guide 522 for distributing gas and air to the second combustion unit 550 and the third combustion unit 570.

The distribution guide 522 is formed by recessing a portion of the distribution part 520 into the flow path of the distribution part 520. Alternatively, a distribution guide 522 may be manufactured as a separate article and disposed in the distribution unit.

In addition, a plurality of flame holes 526 for generating a flame are formed in each of the

combustion units

530, 550, and 570.

In detail, a plurality of salt holes 526 are formed at both sides of the first combustion unit 530. Therefore, flames may occur on both sides of the first combustion unit 530.

A plurality of salt holes 526 are formed at one side of the main part 552 of the second combustion part 550. One side of the main unit 552 refers to a portion facing the first combustion unit 530. A plurality of salt holes 526 are formed at one side of the main part 574 of the third combustion part 570. One side of the main part 574 means a part facing the first combustion part 530. That is, the flame is generated only at one side of each of the

main parts

554 and 574.

Each of the salt holes 526 includes the inner hole 527 and the outer hole 528. One end of the inner hole 527 is in communication with the interior of each combustion unit (530, 550, 570). The inner hole 527 is formed in a hole shape having a predetermined diameter.

One end of the outer hole 528 communicates with the inner hole 527, and the other end of the outer hole 528 communicates with the cooking chamber 211. In addition, the mixed gas is substantially burned at the end of the outer hole 528 in communication with the cooking chamber 211.

The outer hole 528 is formed in a cone shape in which the diameter increases toward the other end communicating with the cooking chamber 211 at one end communicating with the inner hole 527. That is, the channel cross-sectional area of the outer hole 528 is formed larger than the channel cross-sectional area of the inner hole 527. The flow path cross-sectional area of the outer hole 528 increases from the end portion adjacent to the inner hole 527 of the outer hole 528 toward the cooking chamber 211.

Thus, the spacing between the outer holes 528 of the salt holes 526 adjacent to each other is relatively reduced. Therefore, fire transfer between adjacent salt holes can be easily performed.

Meanwhile, referring to FIG. 4, the oven burner 500 is formed by combining the lower case 501 and the upper case 502.

In addition, the lower case 501 and the upper case 502 may be fastened by, for example, a screw (S). Alternatively, the lower case 501 and the upper case 502 may be riveted. In this embodiment, it is noted that there is no limitation in the method of coupling the lower case 501 and the upper case 502.

One or all of the lower case 501 and the upper case 502 is provided with a plurality of salt hole forming portions 505 for forming the plurality of salt holes 526. 4 shows that the salt hole forming portion 505 is formed in the lower case 501 as an example.

The plurality of salt hole forming parts 505 are formed by forming a portion of the lower case 501. In addition, two salt hole forming portions adjacent to each other are connected by the connecting portion 504.

When the lower case 501 and the upper case 502 are coupled to each other, a gap 508 for transferring flame is formed between at least one salt hole and a salt hole adjacent thereto. That is, the lower case 501 and the upper case 502 are spaced apart from the portion where the upper case 502 and the lower case 501 are fastened. In order to separate the upper case 502 from the lower case 501, a gap forming part 503 may be formed in the upper case 502. Of course, when the salt hole forming portion is formed in the upper case, the gap forming portion may be formed in the lower case.

That is, when the lower case 501 and the upper case 502 are coupled, the connection part 504 is spaced apart from the gap forming part 503 facing the gap case 503.

The vertical length of the gap 508 is smaller than the vertical length of the salt hole 526.

According to the present embodiment as described above, there is an advantage that the flame transfer is performed smoothly between adjacent salt holes spaced apart from each other by the gap 508 for flame transfer.

In particular, even in the weak mode (low flame mode) of the operation mode of the oven burner 500, it is possible to smoothly transfer the flame between adjacent salt holes.

The communicating unit 590 connects the end portions of the

respective combustion units

530, 550, and 570 so that pressure balancing within each of the

combustion units

530, 550, and 570 is achieved. When the pressure balance between the combustion units is made, deterioration of the combustion performance in the specific combustion unit can be prevented.

The reflector 600 is disposed between the ceiling surface 212 of the cavity 210 and the oven burner 500.

The reflector 600 reflects the flame and heat generated by burning the gas in the oven burner 500, that is, reflects toward the food inside the cooking chamber 211. In addition, the reflector 600, the combustion gas generated in the process of burning the gas in the oven burner 500 above the reflector 600, that is, the ceiling surface of the cooking chamber 211 and the reflector 600 It serves to flow into the space between the upper surfaces of the.

2, the reflector 600 includes a reflector 610, an exhaust 620, a cover 640, and a fixing flange 630. The reflector 610 includes a plurality of first connection surfaces 611, inclined surfaces 613, and second connection surfaces 615.

The plurality of first connection surfaces 611 are formed to have a predetermined width from side to side and are located directly above the

combustion units

530 and 550 570. The number of the first connection surfaces 611 is determined according to the number of the combustion units. The inclined surface 613 extends upwardly at a predetermined angle from an end of the first connection surface 611. In addition, the second connection surface 615 is positioned between the inclined surfaces 613 adjacent to each other to connect the ends of the inclined surface 613. In the space between the second connecting surface 615 and the two inclined surfaces 613 adjacent to the second connecting surface 615, combustion gas generated in the process of burning the gas in the oven burner 500 is included. Are concentrated.

The fixing flanges 630 are provided at front and rear ends of both side ends of the upper surface of the reflector 610. The fixing flange 630 is for fixing the reflector 610 to the ceiling surface of the cooking chamber 211. The fixed flange 630 is formed by substantially cutting the front and rear ends of the first connection surface 611 and the inclined surface 613 and bending upward.

The exhaust part 620 is generated in the process of burning the gas in the oven burner 500 to generate a space between the oven burner 500 and the reflector 610, that is, the second connection surface 615 and the The combustion gas concentrated in the space between the two inclined surfaces 613 adjacent to the second connection surface 615 is discharged into the space between the ceiling surface of the cooking chamber 211 and the reflector 610. To this end, the exhaust part 620 is formed by cutting a portion of the second connection surface 615 in front and rear.

The cover 640 guides the combustion gas generated by burning the gas in the oven burner 500 evenly to the space between the upper surface of the reflector 600 and the ceiling surface of the cooking chamber 211. It also plays a role.

To this end, the cover part 640 is formed in a plate shape having a size substantially corresponding to the exhaust part 620. The cover part 640 is located directly above the exhaust part 620. Therefore, the flame and heat generated by burning the gas in the oven burner 500 do not flow to the space between the upper surface of the reflector 600 and the ceiling surface of the cooking chamber 211 through the exhaust part 620. The cover 640 is reflected downward, that is, inside the cooking chamber 211. In addition, the combustion gas discharged through the exhaust part 620 is guided forward and backward, and / or left and right by the cover part 640 to spread evenly.

The front and rear ends of the cover part 640 are provided with fixing ribs 641. The fixing rib 641 is for fixing the cover part 640 to the reflecting part 610. In this embodiment, the fixed ribs 641 are formed in an approximately "L" shape and are provided at front and rear ends of the cover part 640, respectively. For example, the fixing rib 641 may be integrally formed with the cover part 640. Of course, the cover part 640 may be integrally molded with the reflector 600. In other words, two cut lines parallel to the second connecting surface 615 in the longitudinal direction thereof are formed, and a portion of the second connecting surface 615 corresponding to the cut lines is bent upwards to allow the vessel to be displaced upward. Base 620 and cover 640 may be formed.

Hereinafter, the operation of the cooking appliance will be described.

First, a user manipulates the control unit 400 to input an operation signal for cooking food using the oven unit 200. When the operation signal is input through the control unit 400, the oven burner 500 operates to cook food in the cooking chamber 211.

In detail, the gas and air supplied to the oven burner 500 are burned to generate a flame. The food inside the cooking chamber 211 is directly cooked by the flame and heat generated by the oven burner 500. At this time, the flame and heat generated by burning the gas in the oven burner 500 are reflected by the reflector 600 toward the food inside the cooking chamber 211.

On the other hand, the combustion gas generated in the process of burning the gas in the oven burner 500 is a space between the ceiling surface of the cooking chamber 211 and the reflector 600 through the reflector 600, more specifically, It is concentrated in the space between the second connecting surface 615 of the reflector 600 and two inclined surfaces 613 adjacent to the second connecting surface 615. The combustion gas concentrated in the space between the second connection surface 615 and the two inclined surfaces 613 is upwardly through the exhaust portion 620, that is, the ceiling surface of the cooking chamber 211 and the reflection portion. Flows into the space between 610.

Claims

A cavity in which a cooking chamber is formed; And

It is located inside the cavity, receives a mixed gas of gas and air, and includes a burner to burn the mixed gas to generate a flame,

The burner includes a supply unit for supplying gas and air; And

At least one combustion unit which is supplied with gas and air from the supply unit and has a plurality of flame holes for generating a flame,

The combustion unit is provided with a gap for communication between a plurality of salt holes, the flame transfer is possible is formed cooking apparatus.
The method of claim 1,

The combustion unit includes an upper case and a lower case coupled to the upper case,

At least one of the upper case and the lower case is provided with a salt hole forming portion for forming the plurality of salt holes,

When the upper case and the lower case are combined, the upper case and the lower case are spaced apart from each other in the portion between the plurality of salt holes.
The method of claim 2,

The upper case and the lower case is provided with a gap forming portion for forming the gap.
The method of claim 1,

The combustion unit is provided with a plurality,

The supply unit is connected to the plurality of combustion units by a distribution unit.
The method of claim 1,

The vertical length of the gap is smaller than the vertical length of the salt hole.
The method of claim 1,

The combustion unit is arranged to be horizontal in the cavity.
The method of claim 1,

The spacing between the ends of salt holes adjacent to each other is less than the spacing of other parts.
The method of claim 7, wherein

Each of the salt holes, the inner hole in communication with the internal space of the combustion section,

Is disposed outside the inner hole, and includes an outer hole in communication with the cooking chamber,

The flow path cross-sectional area of the outer hole is greater than the cross-sectional area of the flow path of the inner hole.
The method of claim 8,

The outside hole is a cooking apparatus that is larger as the flow path cross-sectional area away from the inner side.
A cavity in which a cooking chamber is formed; And

A burner disposed inside the cavity, the burner including a supply part for supplying gas and air, and one or more combustion parts provided with a plurality of flame holes for supplying gas and air from the supply part and generating a flame;

The combustion unit includes an upper case and a lower case,

Any one of the upper case and the lower case is formed with a plurality of salt hole forming parts for forming the plurality of salt holes spaced apart,

Two adjacent salt hole formations are connected by a connecting part,

When the upper case is coupled to the lower case, the connecting portion is spaced apart from the other part of the upper case and the lower case facing the other.
The method of claim 10,

The combustion unit is composed of a plurality,

The supply unit is connected to the plurality of combustion units by a distribution unit,

Some of the plurality of combustion units are each parallel to each other.
The method of claim 11,

The plurality of combustion units are arranged to be horizontal in the cavity.
The method of claim 10,

The distance between the connecting portion and the other part of the upper case and the lower case facing the connecting portion is less than the vertical length of the salt hole.
The method of claim 10,

Each of the salt holes, the inner hole in communication with the internal space of the combustion section,

Is disposed outside the inner hole, and includes an outer hole in communication with the cooking chamber,

The flow path cross-sectional area of the outer end of the outer hole is larger than the flow path cross-sectional area of the inner hole.
The method of claim 14,

The outside hole is a cooking apparatus that is larger as the flow path cross-sectional area away from the inner side.