KR20150062580A

KR20150062580A - Oven

Info

Publication number: KR20150062580A
Application number: KR1020130147387A
Authority: KR
Inventors: 윤민호
Original assignee: 삼성전자주식회사
Priority date: 2013-11-29
Filing date: 2013-11-29
Publication date: 2015-06-08

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oven having a ventilation cover that varies a ventilation amount of a cooking chamber according to an operation mode. The oven includes a casing, a cooking chamber provided inside the casing so as to have a front opening, a ventilation hole provided at one side of the cooking chamber so as to allow air in the cooking chamber to escape to the outside, at least a part of the ventilation opening And a ventilation cover for varying the ventilation amount. It is possible to provide the oven in which the air flow rate is varied according to the operation mode to increase the thermal efficiency in the cooking mode and the polluted air is smoothly discharged in the cleaning mode.

Description

Oven {OVEN}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an oven, and more particularly, to an oven having a ventilation cover that varies a ventilation amount of a cooking chamber according to an operation mode.

The oven is a mechanism for sealing, heating and cooking the cooking material, and can generally be classified into an electric type, a gas type, and an electronic type depending on the heat source. Electric ovens use electric heaters as heat sources, and gas ovens and microwave ovens use frictional heat of water molecules as a heat source due to gas heat and high frequency, respectively.

In the cooking mode in which food is cooked using such an oven, the temperature inside the cooking chamber rises to about 300 ° C. Also, in the case of a cleaning mode in which pyrolytic cleaning is performed to remove foreign matter from the inside of the cooking chamber with high-temperature heat, the temperature inside the cooking chamber rises to 300 ° C or more.

In the case of the washing mode operated at such a high temperature, a door lock device is used to prevent the user from opening the door arbitrarily in order to prevent accidents such as the user opening the door and burning. That is, the door can be opened and closed so that the user can know the cooking state of the food in a relatively low temperature cooking mode, and the door locking device locks the door for safety in a relatively high temperature washing mode.

In this way, the door locking device moves according to the operation mode, and a driving unit for opening or fixing the door is provided. However, a blowing hole, which is provided on one side of the cooking chamber and blows the air inside the cooking chamber to the outside, is installed in an open state regardless of which mode the oven operates. Therefore, since the heat is released to the outside through the tuyeres that are opened in the cooking mode, the heat efficiency is lowered and the cooking time becomes longer.

According to an aspect of the present invention, there is provided an oven including a blower cover that opens and closes at least a part of a blowing port to vary a blowing amount according to an operation mode.

Further, the present invention provides an oven which does not require a separate driving force by moving a blower cover using a drive unit that moves an existing door lock device.

According to an aspect of the present invention, there is provided an oven including a casing, a cooking chamber provided inside the casing to have a front opening, a ventilation hole provided at one side of the cooking chamber so as to allow the air inside the cooking chamber to escape to the outside, And a ventilation cover which is movably installed and opens and closes at least a part of the ventilation opening to vary the ventilation amount.

And a door locking device for selectively locking and unlocking the door, wherein the door locking device is located adjacent to the ventilation hole and the ventilation cover .

A control unit for controlling the temperature inside the cooking chamber, a drive unit operating according to a signal of the control unit, and a connection member for connecting the drive unit, the door lock device and the ventilation cover.

And a fixing plate provided on a lower surface of the connecting member and having a moving groove, wherein the connecting member includes a first connecting portion connected to the driving unit and a second connecting portion moving along the moving groove, The device and the ventilation cover may engage with the second connection portion.

Wherein the door locking device includes a locking engagement portion that engages with the second connection portion, and the ventilation cover includes a ventilation engagement portion that engages with the second connection portion, and the second connection portion includes the lock engagement portion and the ventilation engagement portion, And can be movably inserted into the moving groove.

The door locking device and the ventilation cover may include a lock rotation center and a ventilation rotation center, respectively, so that the door lock device and the ventilation cover can rotate as the second connection part moves.

The door lock device according to any one of claims 1 to 3, further comprising: a fixing groove formed at an inner upper portion of the door, the fixing groove being positioned such that the door locking device can be fixed thereto, the ventilation hole being located at an upper portion of the cooking chamber, And can be ejected to the outside through the front surface.

Wherein when the door locking device is fixed to the fixing groove, the ventilation cover is moved so as to be adjacent to the ventilation opening, and the door locking device is fixed to the fixing groove, The ventilation cover can be moved away from the ventilation hole.

The door locking device and the ventilation cover are connected to one driving unit for providing a driving force for moving, and are rotatable about a lock rotation center and a ventilation rotation center, respectively.

The oven according to the present invention includes a cooking chamber for cooking food in a cooking mode and a pyrolysis cleaning chamber in a washing mode, and an oven for opening and closing the cooking chamber. And a ventilation opening formed in the shape of an opening for allowing the air in the cooking chamber to escape to the outside and having a variable air blowing amount according to the movement of the door locking device.

And a ventilation cover that rotates in accordance with the movement of the door locking device to vary the amount of air blowing through the ventilation hole.

When the door locking device unlocks the door, the ventilation cover moves to the ventilation hole to reduce the amount of ventilation. When the door locking device locks the door, So that the amount of wind blowing can be increased.

It is possible to provide the oven in which the air flow rate is varied according to the operation mode to increase the thermal efficiency in the cooking mode and the polluted air is smoothly discharged in the cleaning mode.

In addition, a separate driving force is not required by interlocking the ventilation cover with the driving unit for moving the existing door locking device.

1 is a view illustrating an oven according to an embodiment of the present invention.
2 is a side cross-sectional view of an oven according to an embodiment of the present invention.
3 is a top view of an oven according to an embodiment of the present invention.
4 is a view illustrating an open state of an oven door according to an embodiment of the present invention.
5 is a view illustrating a locked state of an oven door according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a view showing an oven 1 according to an embodiment of the present invention, and FIG. 2 is a side sectional view of an oven 1 according to an embodiment of the present invention.

The oven 1 includes a casing 10 and a cooking chamber 20 provided inside the casing 10 so as to have a front opening. The oven 1 may include a door 30 rotatably coupled to one side of the casing 10 to open and close the front opening of the cooking chamber 20 to form an appearance.

The cooking chamber 20 is a cooking space formed by the upper plate 21, the bottom plate 22, the both side plates 23 and the rear plate 24. The front surface of the cooking chamber 20 may be provided with a front plate 27 which forms a front opening. Various components constituting the oven 1 may be accommodated in a space provided between the cooking chamber 20 and the casing 10. [

A convection fan 41 for circulating air through the cooking chamber 20 may be installed on the outer side of the rear plate 24. At least one electric heater 42 is installed in the convection fan 41 and a driving motor 43 connected to the convection fan 41 is installed between the fan cover 40 and the rear plate 11 of the casing 10 .

A plurality of inflow holes 25 may be formed in the vicinity of the center of the rear plate 24 facing the convection fan 41 so as to allow air in the cooking chamber to flow. A plurality of outflow holes 26 may be formed at the edge of the rear plate 24 to supply the heat into the cooking chamber.

The outer side of the upper plate 21, the bottom plate 22, the both side plates 23 and the fan cover 40 forming the cooking chamber 20 is provided with a heat insulating member 44 Can be disposed. At the upper end of the casing 10, a control panel 12 for controlling the operation of the oven 1 may be installed.

At least one or more racks 100 for placing food may be disposed in the cooking chamber 20. A rail 23a may be provided on the inner side surface of both side plates 23 so that the rack 100 can be detached. The user can move the rack 100 through the rails 23a and take out or raise the food.

The door 30 may be hinged to the lower end of the casing 10 so that the user can open and close the cooking chamber 20. A handle 37 can be attached to the upper portion of the door 30 so that the user can conveniently rotate the door 30.

A fixing groove 35 into which the door locking device 300 can be inserted may be provided on the door 30. The door lock device 300 may be positioned on the upper surface of the front plate 27 to correspond to the fixing groove 35. The door locking device 300 moves according to the temperature of the cooking chamber 20 and can be fixed to the fixing groove 35, which will be described later.

The upper surface plate 21 may be provided with a ventilation hole 200 so that air inside the cooking chamber 20 can escape to the outside. The ventilation holes 200 may be formed through the upper surface plate 21 so that the air inside the cooking chamber 20 can pass through. A filter (not shown) may be installed in the ventilation opening 200 to allow the air to escape from the cooking chamber 20 to remove contaminants. The ventilation hole 200 may be provided with a ventilation cover 210 for controlling the ventilation amount, which will be described later.

The food is placed on the rack 100 supported by the rail 23a and the door 30 is closed to close the cooking chamber 20. [ Thereafter, the control panel 12 is operated to heat the electric heater 42, and the convection fan 41 is rotated by the drive motor 43. [ The air inside the cooking chamber 20 is sucked into the inlet hole 25 and heated by the electric heater 42 and then supplied to the cooking chamber 20 through the outlet hole 26. [ The heated air supplied through the outflow hole 26 can be circulated through the cooking chamber 20 to cook food.

When the food is heated and cooked in the cooking chamber 20, oil fractions coming from food or the like are adhered to the inner wall surface of the cooking chamber 20 and hard to be hardened, the pyrolysis cleaning function can be used. Pyrolytic cleaning is a method of burning and removing pollutants by maintaining the internal temperature of the cooking chamber 20 at a high temperature for a long time using an electric heater 42. For the pyrolysis cleaning, a temperature higher than the cooking temperature is required.

Hereinafter, the case where food is cooked in the cooking chamber 20 is referred to as a cooking mode, and the case where the cooking chamber 20 is pyrolyzed and washed is referred to as a washing mode. In the present invention, a case where the temperature of the cooking chamber 20 becomes 300 degrees or more is referred to as a washing mode, and a case where the temperature of the cooking chamber 20 becomes less than 300 degrees may be referred to as a cooking mode.

3 is a top view of the oven 1 according to an embodiment of the present invention. The ventilation openings 200 and the door locking devices 300 located on the upper surface plate 21 are shown by removing the top cover 17 forming the outer appearance of the oven 1 in order to show the features of the present invention.

As described above, the temperature of the cooking chamber 20 is relatively low in the cooking mode, but the temperature of the cooking chamber 20 is relatively high in the washing mode. Accordingly, the door lock device 300 is used to prevent the user from arbitrarily opening the door 30. [ It is preferable that the door 30 is opened in the cooking mode in which the user needs to check the cooking state of the food or the like and the door 30 is closed in the washing mode in which the food is cleaned at a relatively high temperature.

The oven 1 may thus include a door lock device 300 for selectively performing unlocking and locking of the door 30. The door locking device 300 is coupled to the fixing groove 35 provided in the door in the washing mode, and exits from the fixing groove 35 in the cooking mode.

For movement of the door lock device 300, the oven 1 may include a drive unit 330 that provides power. The drive unit 330 can operate according to the temperature measured in a temperature sensor (not shown) that measures the temperature inside the cooking chamber 20. [ When the set temperature is 300 degrees, when the temperature of the cooking chamber 20 becomes 300 degrees or less or less than 300 degrees, the drive unit 330 operates to move the door lock apparatus 300. [ The drive unit 330 may be provided on one side of the rear side of the upper surface plate 21 of the casing 10.

The door lock device 300 which is positioned in front of the upper surface plate 21 and engages with the door 30 and the drive unit 330 provided at the rear side of the upper surface plate 21 can be seated on the fixing plate 320 have. The fixing plate 320 may extend to connect the front and rear sides of the upper surface plate 21. The drive unit 330 can be coupled to the fixed plate 320 and operated. The rotation unit 340 is coupled to the drive unit 330 so that the rotation unit 340 can be rotated by a predetermined angle as the drive unit 330 is driven.

A connecting member 310 may be installed on the fixing plate 320 to transmit the power of the driving unit 330 to the door locking device 300. The connecting member 310 may extend along the fixing plate 320 connected to the front plate 21 in the front and rear directions. One side of the elongated connecting member 310 is referred to as a first connecting portion 311 and the other side thereof is referred to as a second connecting portion 312. [ The first connection part 311 may be connected to the drive unit 330 and the second connection part 312 may be connected to the door locking device 300.

The first connection part 311 is fixed to the rotary member 340 and can move as the rotary member 340 rotates at a predetermined angle. The first connection part 311 may be fixed at a predetermined distance from the rotation center of the rotation member 340. [ The second connection portion 312 receiving the rotational force from the rotating first connection portion 311 can be coupled to the movement groove 350 provided in the stationary plate 320. The moving groove 350 may be provided on one side in the form of a bent groove. The second connection part 312 receives the driving force and moves along the movement groove 350 and can be fixed to one side.

One side of the door lock device 300 is provided in a bent shape so as to be fixed to the fixing groove 35. The fixing groove 35 may be provided in the upper part of the inner side of the door 30 and may be provided in the form of a horizontally extended groove so that the door locking device 300 can be fixed.

The door lock device 300 may include a locking coupling portion 370 for coupling with the second connection portion 312. A locking rotation center 360 may be positioned between the second connection part 312 and the door 30 to form a rotation center of the door locking device 300. The lock rotation center 360 may be provided in the form of a screw or a rivet so as to rotatably fix the door lock device 300 to the rotary plate 320.

A ventilation hole 200 penetrating the upper surface plate 21 of the cooking chamber 20 adjacent to the door locking device 300 may be positioned. The ventilation hole 200 may be provided in the form of an opening so that the air inside the cooking chamber 20 can escape to the outside. The air in the cooking chamber 20 that has passed through the ventilation opening 200 may be blown out through at least one air outlet 15 provided on the upper surface of the door 30. An air vent cover 210 may be disposed on the upper surface of the air vent 200 to open / close at least a part of the air vent 200 to vary the ventilation amount.

The ventilation cover 210 may be installed to vary the amount of air blowing according to the movement of the door locking device 300 without having a separate driving unit. The ventilation cover 210 may be provided in the form of a flat plate so that the ventilation opening 200 can be opened or closed. The flat plate may be provided in various forms so as to control the degree of opening and closing of the ventilation hole as required.

One side of the ventilation cover 210 may include a vent fitting 260 that engages with the second connection 312. The ventilation rotation center 220, which forms the rotation center of the ventilation cover 210, may be positioned between the ventilation holes 200 and the second connection portion 312. The ventilation rotation center 220 may be provided in the form of a screw or a rivet to rotatably fix the ventilation cover 210 to the upper surface plate 21. [

That is, the second connection portion 312 can be movably coupled to the movement groove 350 through the lock engagement portion 370 and the ventilation engagement portion 260. The door lock device 300 and the ventilation cover 210 can rotate about the lock rotation center 360 and the ventilation rotation center 220 while the second connection part 312 moves along the movement groove 350 .

FIG. 4 is a view illustrating an open state of the door 30 of the oven 1 according to an embodiment of the present invention. Fig.

In the cooking mode in which the temperature of the cooking chamber 20 is less than 300 degrees, as shown in FIG. 4, the door locking device 300 is separated from the fixing groove 35. In order to increase the heat efficiency inside the cooking chamber 20, the ventilation cover 210 is provided in a state of closing a part of the ventilation opening 200. The ventilation hole 200 may be provided in a form that closes all or a part of the ventilation hole 200, if necessary.

In the case of the washing mode in which the temperature of the cooking chamber 20 becomes 300 or more, as shown in FIG. 5, the door locking device 300 is coupled to the fixing groove 35. The second connecting portion 312 is fixed to the bent portion of the moving groove 35 to prevent the door 30 from being separated by an external force. In order to discharge the air inside the cooking chamber 20 contaminated by the washing, the ventilation cover 210 is provided in a state in which the ventilation opening 200 is opened. The contaminated air may be filtered through a filter (not shown) provided in the ventilation opening 200 and may be discharged to the outside.

When the cooking mode is switched to the washing mode, the driving unit 330 is operated to move from the cooking mode to the washing mode in Fig. Conversely, when the washing mode is switched to the cooking mode or the washing is completed, the driving unit 330 operates to move from the state shown in Fig. 5 to the state shown in Fig.

It will be understood by those skilled 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.

10: casing 20: cooking chamber
30: Door 35: Fixing groove
200: Ventilation hole 210: Ventilation cover
220: Ventilation rotation center 260: Ventilation hole
300: door lock device 310: connecting member
320: Fixing plate 330: Drive unit
340: rotating member 350: moving groove
360: Lock rotation center 370: Locking engagement hole

Claims

Casing;
A cooking chamber provided inside the casing to have a front opening;
A ventilation hole provided at one side of the cooking chamber so that air inside the cooking chamber can escape to the outside;
A ventilation cover movably installed at a position adjacent to the ventilation opening and opening / closing at least a part of the ventilation opening to vary the ventilation amount;
.

The method according to claim 1,
A door installed to open and close the front opening and a door locking device for selectively performing unlocking and locking of the door,
Wherein the door lock device is located adjacent to the ventilation hole and the ventilation cover.

3. The method of claim 2,
A temperature sensor for measuring a temperature inside the cooking chamber,
A drive unit that operates in accordance with the temperature measured by the temperature sensor,
And a connecting member for connecting the driving unit with the door lock device and the ventilation cover.

The method of claim 3,
And a fixing plate on which the connecting member is seated and provided with a moving groove,
Wherein the connecting member includes a first connecting portion connected to the driving unit and a second connecting portion moving along the moving groove,
Wherein the door lock device and the ventilation cover engage with the second connection portion.

5. The method of claim 4,
Wherein the door locking device includes a lock engagement portion that engages with the second connection portion,
Wherein the ventilation cover includes a vent fitting for engaging with the second connection portion,
And the second connection portion is movably inserted through the lock engagement hole and the ventilation engagement hole and into the movement groove.

6. The method of claim 5,
Wherein the door lock device and the ventilation cover each include a lock rotation center and a ventilation rotation center so as to be able to rotate as the second connection part moves.

3. The method of claim 2,
And a fixing groove provided on an inner upper side of the door and positioned so as to fix the door locking device,
Wherein the ventilation hole is located at an upper portion of the cooking chamber, and the air in the cooking chamber which has escaped through the ventilation hole is blown out through the upper front surface of the door.

8. The method of claim 7,
Wherein the door lock device and the ventilation cover are installed so as to be movable in conjunction with each other,
When the door locking device is fixed to the fixing groove, the ventilation cover moves so as to be adjacent to the ventilation opening,
Wherein when the door locking device is separated from the fixing groove, the ventilation cover moves away from the ventilation opening.

9. The method of claim 8,
Wherein the door locking device and the ventilation cover are connected to one driving unit for providing a driving force for moving,
Wherein the oven is rotated about a lock rotation center and a ventilation rotation center, respectively.

In the oven performing the cooking mode and the washing mode,
In the cooking mode, the food is cooked. In the washing mode, a cooking chamber in which pyrolysis washing is performed;
A door installed to open and close the cooking chamber and including a door locking device that moves when the cooking chamber reaches a set temperature;
A ventilation hole provided in the form of an opening for allowing the air in the cooking chamber to escape to the outside and varying a blowing amount according to the movement of the door locking device;
.

11. The method of claim 10,
And an air vent cover which rotates in accordance with the movement of the door lock device to vary the air blowing amount of the air vent.

12. The method of claim 11,
When the door lock device unlocks the door, the vent cover moves to the ventilation hole to reduce the air blowing amount,
Wherein when the door lock device locks the door, the ventilation cover moves from the ventilation hole to increase the blowing amount.