KR20170101466A - Oven - Google Patents

Abstract

The present invention relates to an oven which has a double door structure including a first door made of a transparent material and a second door made of an opaque material to be able to simultaneously have transparency and insulation properties. The oven comprises: a main body; a cooking chamber provided to be opened at a front surface thereof in an inner portion of the main body; a first door rotatably coupled to the main body to open and close the cooking chamber, provided in a transparent material so that an inner portion of the cooking chamber can be seen through, and engaged to and disengaged from the main body by a locking apparatus; and a second door provided in an opaque material to be rotatably coupled to a front surface of the first door, and engaged to and disengaged from the first door by the locking apparatus.

Description

Oven {OVEN}

The present invention relates to an oven having a double door structure.

Generally, the oven is a device for cooking food with a cooking chamber, a heating device for applying heat to the cooking chamber, and a circulating fan for circulating the heat generated in the heating device inside the cooking chamber.

An oven is a device for cooking, cooking, sealing, and cooking food. Generally, an oven can 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.

Generally, the oven includes a main body having an outer appearance and having a front opening and a cooking chamber into which food to be cooked is inserted, and a door installed on a front surface of the main body to selectively open and close the cooking chamber.

The door is made of a plurality of glasses to prevent the heat inside the cooking chamber from being released to the outside.

The door is made of a plurality of glass so that the heat inside the cooking chamber is prevented from being released to the outside and the temperature of the door is lowered through the air flow path formed between the plurality of glasses to prevent the heat inside the cooking chamber from being transmitted to the door surface .

Since the door is provided in the glass in order to ensure the visibility of the inside of the cooking chamber from the outside, there is a limit to securing the heat insulation inside the cooking chamber even if the door is composed of a plurality of glasses.

In addition, since the door is provided in a glass, the appearance design can not be made opaque and there are limitations in appearance design.

According to an aspect of the present invention, there is provided an oven in which a door has a double door structure including a first door made of a transparent material and a second door made of an opaque material, thereby simultaneously securing visibility and heat insulation.

The oven according to an embodiment of the present invention includes a main body, a cooking chamber which is open to the inside of the main body, a rotatably coupled body to open and close the cooking chamber, and a transparent material A first door provided with a locking device for locking and unlocking the main body and an opaque material and rotatably coupled to a front surface of the first door, And a second door which is unlocked.

A handle coupled to a front surface of the second door, the locking device comprising: a support coupled to the handle; a rotation lever coupled to the support in a forward and backward direction to be rotatable; A lever unit, a bracket rotatably coupled to the lever unit, and a latch member for latching and releasing the lever unit.

The latching member may include a first latching member provided on the first door and a second latching member provided on the main body.

The lever unit includes a first lever unit interlocked with the rotation lever to be engaged with and released from the first engagement member, a second lever unit interlocked with the first lever unit to engage and disengage from the second engagement member, . ≪ / RTI >

The bracket includes a first bracket coupled to a front surface of the second door and rotatably coupled with the first lever unit, a second bracket coupled to the first door and rotatably coupled with the second lever unit, .

The support includes a housing received and coupled to a rear surface of the handle, and a rear cover coupled to an open rear surface of the housing, and the rotation lever can be rotatably coupled to the housing.

The rotary lever includes a hinge protrusion rotatably coupled to the housing, a pressing part exposed to the outside of the rear cover and rotated in the forward and backward directions about the hinge protrusion, a supporting part elastically supported by the housing by a spring, And a rotation inducing unit which is in contact with the first lever unit and is rotated in the front-rear direction about the hinge projections to induce rotation of the first lever unit.

The first lever unit includes a first contact portion that is rotatably coupled to the first bracket by a first rotation shaft and contacts the rotation guide portion and is rotated in the vertical direction about the first rotation axis, And a first engaging portion which is rotated in the up-and-down direction about the first rotation axis to be engaged with and disengaged from the first engaging member.

The second lever unit includes a second contact portion rotatably coupled to the second bracket by a second rotation shaft and contacting the first engagement portion and being rotated in a vertical direction about the second rotation axis, And a second latching portion which is rotated in the vertical direction about the rotation axis to be engaged with and released from the second latching member.

The second door is held in the first door by the locking device and the first door and the second door are opened together when the first door is released from the main body, .

When the first door is in the locked state with the main body, the first door maintains the closed state of the cooking chamber, and when the second door is in the locked state with the main body, Only the door can be opened.

When the first door closes the cooking chamber and only the second door is opened, the heat inside the cooking chamber is blocked from being discharged to the outside by the first door, and the inside of the cooking chamber Can be viewed.

Wherein the second door is provided with a foldable structure in which the second door can be partially opened, the second door is held by the locking device in the first door, and when the first door is in the unlocked state with the main body, The first door and the second door may be opened together to open the cooking chamber.

Wherein the second door is provided with a foldable structure in which the second door can be opened only partially and the second door is released from the first door by the locking device, The first door maintains the closed state of the cooking chamber, and only a part of the second door can be opened.

When the first door closes the cooking chamber and only a part of the second door is opened, the heat inside the cooking chamber is blocked from being discharged to the outside by the first door, and the open portion of the second door The inside of the cooking chamber can be viewed through a part of the corresponding first door.

According to another aspect of the present invention, there is provided an oven comprising a main body, a cooking chamber which is opened to the inside of the main body, a cooking chamber rotatably coupled to the main body to open and close the cooking chamber, A first door which is made of an opaque material and includes a transparent part provided in a transparent material and an opaque part provided in an opaque material and is provided with a first door which is engaged and disengaged from the main body by a locking device, And a second door which is engaged and released by the locking device with respect to the first door.

Wherein the second door is provided with a foldable structure in which the second door can be partially opened, the second door is held by the locking device in the first door, and when the first door is in the unlocked state with the main body, The first door and the second door may be opened together to open the cooking chamber.

Wherein the second door is provided with a foldable structure that allows only the portion corresponding to the transparent portion to be opened, the second door is released from the first door by the locking device, The first door may maintain the closed state of the cooking chamber when the main body is hooked, and only the portion corresponding to the transparent portion of the second door may be opened.

When the first door closes the cooking chamber and only the portion corresponding to the transparent portion of the second door is opened, the heat inside the cooking chamber is blocked from being discharged to the outside by the first door, The inside of the cooking chamber can be viewed through the open portion of the two door.

According to another aspect of the present invention, there is provided an oven comprising a main body, a cooking chamber which is opened to the inside of the main body, a cooking chamber rotatably coupled to the main body to open and close the cooking chamber, A first door including a transparent part made of a transparent material and an opaque part made of an opaque material and a second door provided with an opaque material and rotatably provided on the front surface of the first door so as to open and close the transparent part, .

According to the embodiments of the present invention, a door having a double-door structure can simultaneously ensure transparency and heat insulation.

In addition, the exterior design of the door can be made opaque so that the exterior design can be made beautiful.

1 is a perspective view of an oven according to an embodiment of the present invention;
2 is a view showing a door of an oven opened according to an embodiment of the present invention;
3 is a side cross-sectional view of an oven according to one embodiment of the present invention.
4 is a perspective view of a door according to an embodiment of the present invention;
5 is a view illustrating a state in which the second door of the door is rotated and opened from the first door according to the embodiment of the present invention.
6 is a view showing a state where a support and a rotation lever are coupled to a handle according to an embodiment of the present invention;
Figure 7 is a view of Figure 6 from a different angle;
8 is a view showing a state in which the first lever unit according to the embodiment of the present invention is provided to be engaged and disengaged by the first engaging member.
9 is a view illustrating a state in which the second lever unit according to the embodiment of the present invention is engaged and released from the second engagement portion.
10 is a view showing a state in which a first lever unit according to an embodiment of the present invention is rotatably coupled to a first bracket;
11 is a view showing a state in which a second lever unit according to an embodiment of the present invention is rotatably coupled to a second bracket;
12 is a sectional view showing a locking device when both the first door and the second door are closed according to an embodiment of the present invention;
13 is a sectional view showing a locking device when the first door and the second door are opened together according to an embodiment of the present invention;
FIG. 14 is a view showing a first door and a second door completely opened according to an embodiment of the present invention; FIG.
15 is a sectional view showing a locking device when the pressing portion is pressed in a state where both the first door and the second door are closed according to the embodiment of the present invention.
16 is a cross-sectional view of the locking device when the second door is released from the first door and is unlocked according to an embodiment of the present invention.
17 is a view showing a state in which a second door is opened from a first door according to an embodiment of the present invention;
18 is a view showing a state in which the second door is completely opened from the first door according to the embodiment of the present invention;
19 is a cross-sectional view showing a locking device when the second door according to the embodiment of the present invention is fully opened from the first door and then the pressing force is removed.
20 is a sectional view showing a locking device when the second door is closed according to an embodiment of the present invention;
FIG. 21 is a sectional view showing a state in which the first door unit is brought into contact with the first latching member while the second door is closed according to an embodiment of the present invention; FIG.
22 is a view schematically showing a door of an oven according to another embodiment of the present invention.
23 is a view schematically showing a door of an oven according to another embodiment of the present invention.
24 is a view schematically showing a door of an oven according to another embodiment of the present invention.

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

In the following description, the front face refers to the direction toward the front of the oven body, and the rear face refers to the direction toward the rear face with respect to the body of the oven.

The upper portion refers to the upper direction with respect to the body of the oven, and the lower portion refers to the lower direction with respect to the body of the oven.

As shown in FIGS. 1 to 3, the oven includes a main body 10 forming an outer appearance, a cooking chamber 20 having a front surface opened inside the main body 10, And a door 100 provided on the front surface of the main body 10 for opening and closing the cooking chamber 20. The cooking chamber 30 is provided with a cooking cavity 30,

The main body 10 includes a front panel 11 forming a front surface of the main body 10, side panels 13 forming side surfaces of the main body 10, and a rear panel 15 ).

The front panel 11 is provided with an opening 11a so that the front surface of the cooking chamber 20 provided inside the main body 10 is opened.

The display module 50 may be mounted on the front cover 11 so as to cover the front cover of the front cover module 60. The display module 50 may be mounted on the front cover 11, .

The rear panel 15 is provided with a through hole 15a through which the air can be sucked into the electric field chamber 60. The external air sucked into the electric field chamber 60 through the through hole 15a is passed through the electric field chamber 60, Flows inside and cools electrical components.

The cooking chamber 20 is provided in a box shape inside the main body 10 and is opened through the opening 11a of the front panel 11 so that the food can be put in and taken out.

A plurality of supports 21 may be provided on both side walls of the cooking chamber 20 and a plurality of supports 21 may be provided with a rack 23 on which the food can be placed.

(Not shown) capable of dividing the cooking chamber 20 into a plurality can be detachably mounted to the plurality of support rods 21.

The plurality of cooking chambers 20 divided by the divider do not have to be the same size but may have different sizes. The dividers may be made of a heat insulating material to insulate the respective cooking chambers 20.

Accordingly, it is possible to utilize a plurality of divided spaces of the cooking chamber 20 in various ways according to a user's intention.

The cooking chamber 20 is provided with a heater 22 for heating the food, and the heater 22 may be an electric heater including an electric resistor.

The heater 22 is not limited to an electric heater but may be a gas heater that generates heat by burning gas.

Thus, the oven may include an electric oven and a gas oven.

A circulation fan 25 for circulating the air in the cooking chamber 20 to heat the food evenly and a circulation motor 24 for driving the circulation fan 25 may be provided at the rear of the cooking chamber 20.

A fan cover 26 covering the circulation fan 25 may be provided on the front surface of the circulation fan 25. A through hole 27 may be formed in the fan cover 26 to allow air to flow therethrough.

The open front face of the cooking chamber 20 is opened and closed by the door 100 and the door 100 can be hinged to the lower portion of the main body 10 so as to be rotatable with respect to the main body 10.

A handle 130 may be provided on the upper portion of the front surface of the door 100 to enable the door 100 to open and close the cooking chamber 20 by the user.

The detailed configuration of the door 100 will be described below.

A storage compartment 40 is provided in the lower part of the cooking chamber 20 and a cooking compartment and the like can be stored in the storage compartment 40.

The storage chamber 40 is slidably movable in the front-rear direction and can be drawn into the main body 10 or drawn out from the main body 10.

The display module 50 that displays various operation information of the oven and allows the user to input an operation command can be mounted on the electric field seal cover 17 provided at the upper part of the front surface of the front panel 11, 17 may be provided with an operating portion 51 provided to further operate the oven.

The oven is provided with an electrical component room (60) for accommodating electrical components for controlling the operation of various accessories including the display module (50).

The electric field chamber 60 is provided in the upper part of the cooking chamber 20 and the electric field chamber 60 is provided between the electric field chamber 60 and the cooking chamber 20 to prevent the heat of the cooking chamber 20 from being transmitted to the electric field chamber 60. [ And a heat insulating material (61) for insulating the cooking chamber (20).

The heat insulating material 61 may be provided to cover the entire outer side of the cooking chamber 20 so that the heat of the cooking chamber 20 is not transmitted to the outside of the oven as well as between the electric chamber 60 and the cooking chamber 20.

Since the inside of the electric arc furnace 60 can rise in temperature due to the heating of various electric components, a cooling structure for cooling the electric arc furnace 60 by circulating air around the electric arc furnace 60 is provided in the oven.

The cooling structure of the oven may include a cooling fan unit 62 for flowing air and a cooling channel 63 for discharging the air sucked by the cooling fan unit 62 to the front of the oven.

The air outside the oven is sucked into the electric room 60 through the through hole 15a formed in the rear panel 15 and the air sucked into the electric room 60 flows inside the electric room 60, It can be discharged to the front of the oven through the discharge port 64 along the cooling passage 63. [

Some of the air in the cooking chamber 20 can be sucked to the cooling channel 63 side through the exhaust channel 65 and discharged to the front of the oven.

A bypass hole 66 for allowing a part of the air flowing from the cooling passage 63 to the discharge port 64 to flow into the exhaust passage 65 may be additionally formed, (67).

The amount of the air flowing into the exhaust passage 65 from the cooling passage 63 to the discharge opening 64 is controlled by the opening and closing of the bypass hole 66 by the opening / closing device 67, The amount of exhaust air discharged from the cooking chamber 20 to the exhaust flow path 65 can be adjusted.

Next, the structure of the door 100 for opening and closing the cooking chamber 20 will be described in detail.

2 to 5, a door 100 rotatably coupled to a front surface of the main body 10 and opening and closing the cooking chamber 20 includes a first door 100 rotatably coupled to a front surface of the main body 10, A second door 120 rotatably coupled to the front surface of the first door 110 and a handle 130 provided on the upper surface of the second door 120 so as to be held by the user, .

The first door 110 includes a front glass 111 installed on the front surface of the front glass 111 and a rear glass 112 installed on the rear surface of the front glass 111 to seal the cooking chamber 20, A side support frame 114 and an upper support frame 115 are provided on a side surface and an upper portion of the first door 110 so as to face the front glass 111 and the rear glass 111, And supports the glass 112 and the intermediate glass 113 (see Fig. 12).

A first opening 116 through which the locking device 500 is inserted may be provided at a central portion of the upper support frame 115.

The first door 110 is rotatably coupled to the main body by a first hinge 117 and is provided with a plurality of glasses 111, 112 and 113 so that the first door 110 closes the cooking chamber 20 So that the inside of the cooking chamber 20 can be seen from the outside.

Since the first door 110 is made of a transparent material such as glass and the first door 110 is closed to prevent the heat inside the cooking chamber 20 from being discharged to the outside, It is possible to grasp the cooking state of the food or the like to be cooked in the cooking chamber 20 through the inside of the cooking chamber 20.

The second door 120 is made of an opaque material and is rotatably coupled to the front surface of the first door 110 by the second hinge 123.

A handle 130 is provided at an upper portion of the front surface of the second door 120 so that the user can grasp the door 100 to open and close the door 100. At the center of the upper portion of the second door 120, The second opening 123 may be provided at a position corresponding to the first opening 116.

When the first door 110 and the second door 120 are both closed, the heat inside the cooking chamber 20 is double-blocked by the first door 110 and the second door 120, It is possible to effectively prevent the internal heat from being discharged to the outside.

Since the second door 120 is made of an opaque material, the heat inside the cooking chamber 20 can be more efficiently prevented from being discharged to the outside, and the surface temperature of the second door 120 can be lowered, It is possible to improve safety such as preventing an image when the handle 130 provided on the two door 120 is gripped.

In addition, the color of the second door 120 can be freely determined to match the surrounding color of the oven, thereby realizing a harmonious appearance design with other kitchen appliances.

When it is desired to check the cooking state of foods to be cooked in the cooking chamber 20, if only the second door 120 is opened without opening both the first door 110 and the second door 120, The inside of the cooking chamber 20 can be seen through the door 110 so that the inside of the cooking chamber 20 can be seen from the outside and the heat inside the cooking chamber 20 can be prevented from being discharged to the outside.

The second door 120 may be opened by grasping the handle 130 provided on the upper surface of the second door 120 so as to open only the second door 120 or open the first door 110 and the second door 120 together. And a locking device 500 is provided on the rear surface of the main body 130.

12, the locking device 500 includes supports 510 and 520 coupled to the handle 130, a rotation lever 530 coupled to the supports 510 and 520 to be rotatable in the forward and backward directions, A lever unit 540 and 550 which are rotated in the vertical direction in cooperation with the rotary lever 530, brackets 560 and 570 to which the lever units 540 and 550 are rotatably engaged and a pair of lever units 540 and 550 And an engagement member 580 which is engaged and disengaged.

The detailed configuration of the locking device 500 will be described in detail with reference to FIGS. 6 to 11. FIG.

6 through 7, the supports 510 and 520 coupled to the rear surface of the handle 130 include a housing 510 which is received and coupled to the rear surface of the handle 130, And a rear cover 520 coupled to the rear surface.

The support receiving portion 131 is provided at the rear of the handle 130 to receive the supports 510 and 520. The support receiving portion 131 is supported by the support members 510 and 520, A coupling hole 133 is provided.

The housing 510 is received in the support receiving part 131 and the housing 510 is provided at a position corresponding to the support coupling hole 133 and is coupled to the support coupling hole 133 by the coupling member B A hinge hole 513 in which the first coupling hole 511 and the rotation lever 530 are rotatably engaged and a first support portion 515 for elastically supporting the rotation lever 530 by the spring S can do.

The rear cover 520 is coupled to the rear surface of the housing 510 to cover the opened rear surface of the housing 510 and includes a second coupling hole 521 provided at a position corresponding to the support coupling hole 133, An opening 523 in which a part of the rotation lever 530 rotatably coupled to the lever unit 530 is exposed to the outside and a contact portion 532 which is in contact with the lever unit 540 and 550 in a state in which the rotation lever 530 is prevented from being exposed to the outside. And a cover portion 525 for allowing the cover portion 525 to be opened.

The second engagement hole 521 is provided at a position corresponding to the support engagement hole 133 of the handle 130 and the first engagement hole 511 of the housing 510 and is fixed to the rear cover 520 by the engagement member B, So that it can be coupled to the handle 130 together with the housing 510.

The opening 523 is provided on the rear surface of the rear cover 520 so that the pressing portion 533 of the rotating lever 530 to be exposed is exposed to the outside so that the user can press the pressing portion 533. [

The cover portion 525 contacts the first lever unit 540 in a state in which the rotation inducing portion 537 of the rotation lever 530 to be described below is prevented from being exposed to the outside to induce the rotation of the first lever unit 540 .

The rotation lever 530 includes a hinge protrusion 531 that is rotatably coupled to the hinge hole 513 of the housing 510 and a hinge protrusion 531 that is exposed to the outside through the opening 523 of the rear cover 520 A second support portion 535 provided on the opposite side of the pushing portion 533 so that one side of the spring S is supported and the rotation lever 530 is resiliently supported by the spring S, And a rotation induction unit 537 that contacts the first lever unit 540 to induce rotation of the first lever unit 540. [

The hinge protrusion 531 of the rotary lever 530 is coupled to the hinge hole 513 of the housing 510 so as to be rotatable in the forward and backward directions so that the user presses the pushing part 533 while holding the handle 130 The pressing portion 533 is rotated toward the front with the hinge protrusion 531 as the center.

The pressing portion 533 is rotated toward the front with the hinge protrusion 531 as the center and the spring S (not shown) supported between the first supporting portion 515 of the housing 510 and the second supporting portion 535 of the rotating lever 530 ) Is compressed.

The rotation guide portion 537 is rotated about the hinge protrusion 531 toward the rear and pushes the first lever unit 540 toward the rear side when the pressing portion 533 is rotated toward the front with the hinge protrusion 531 as a center .

When the user releases his / her hand from the pressing portion 533 and the force pressing the pressing portion 533 is removed, the pressing portion 533 is rotated about the hinge projection 531 toward the rear face by the elastic force of the spring S And the rotation inducing portion 537 is rotated toward the front about the hinge protrusion 531. [

8 to 11, the lever units 540 and 550 include a first lever unit 540 engaged with the first engaging member 581 to be engaged with the rotation lever 530 and released from the first engaging member 581, And a second lever unit 550 which is engaged with and released from the second latching member 583 to be interlocked with the first lever unit 540.

The brackets 560 and 570 are coupled to the second door 120 and include a first bracket 560 to which the first lever unit 540 is rotatably coupled and a second bracket 560 coupled to the first door 110, And a second bracket 570 to which the second arm 550 is rotatably coupled.

The first lever unit 540 is coupled to the first bracket 560 by a first rotation shaft 541 so as to be vertically rotatable and includes a first rotation hole 543 in which the first rotation shaft 541 is rotatably inserted A first contact portion 545 that is in contact with the rotation inducing portion 537 and is rotated in the up and down direction about the first rotation axis 541 and a second contact portion 545 that is in contact with the second lever unit 550, A first retaining portion 547 which is rotated in the vertical direction with respect to the first retaining member 581 to be engaged and disengaged from the first retaining member 581 and a pair of first support protrusions 549).

The first contact portion 545 is in contact with the rotation guide portion 537 of the rotation lever 530. When the user pushes the pressing portion 533 and the rotation guide portion 537 is rotated backward about the hinge projection 531 The first contact portion 545 is rotated in the upward direction about the first rotation axis 541 by the rotation induction portion 537. [

When the first contact portion 545 is rotated upward about the first rotation shaft 541, the first engagement portion 547 is also rotated upward about the first rotation shaft 541.

When the first latching portion 547 is rotated upward about the first rotation shaft 541, the first latching portion 547 is released from the first latching member 581, and a detailed description will be given below.

The first bracket 560 is coupled to the front surface of the second door 120 and includes a second rotation hole 561 through which the first rotation shaft 541 is rotatably inserted, a pair of first elastic members 591, And a second support protrusion 549 which is elastically supported.

One side of the first elastic member 591 is supported by the first support protrusion 549 of the first lever unit 540 and the other side is supported by the second support protrusion 549 of the first bracket 560.

The second lever unit 550 is coupled to the second bracket 570 by a second rotation shaft 551 so as to be vertically rotatable and includes a third rotation hole 553 through which the second rotation shaft 551 is rotatably inserted A second contact portion 555 which is in contact with the first engagement portion 547 and is rotated in the vertical direction about the second rotation axis 551, and a second contact portion 555 which is rotated in the vertical direction about the second rotation axis 551, A second latching portion 557 which is engaged and disengaged by the latching member 583 and a third latching protrusion 559 which is elastically supported by the second elastic member 593.

The second contact portion 555 is held in contact with the first engagement portion 547 of the first lever unit 540 and when the first engagement portion 547 is rotated upward about the first rotation axis 541 The second contact portion 555 is rotated in the upward direction about the second rotation shaft 551 while maintaining the contact state with the first engagement portion 547. [

When the second contact portion 555 is rotated upward about the second rotation shaft 551, the second engagement portion 557 is rotated downward about the second rotation shaft 551.

When the second latching portion 557 is rotated downward about the second rotation shaft 521, the second latching portion 557 is latched by the second latching member 581, and a detailed description will be given below.

The second bracket 570 is coupled to the first door 110 and includes a fourth rotation hole 571 through which the second rotation shaft 551 is rotatably inserted and a second rotation hole 571 through which the second elastic member 593 is elastically supported 4 support protrusions 573.

One side of the second elastic member 591 is supported by the third support protrusion 559 of the second lever unit 550 and the other side is supported by the fourth support protrusion 573 of the second bracket 570.

Next, the operation of opening and closing the first door 110 and the second door 120 by the locking device 500 will be described in detail with reference to FIGS. 12 to 21. FIG.

As shown in FIG. 3, when the door 100 is closed to close the cooking chamber 20, the first lever unit 540 is engaged with the first latching member 581 And the second lever unit 550 is disengaged from the second engaging member 583.

The first door 110 and the second door 120 are in a state of being opened and closed together because the first lever unit 540 is engaged with the first latching member 581 and the second lever unit 550 Is released from the second latching member 583, the first door 110 can be opened.

When the user grasps the handle 130 and pulls the handle 130 forward while the first door 110 and the second door 120 are both closed and the first door 110 and the second door 120 are closed, The two doors 120 are opened together to open the cooking chamber 20 as shown in Fig.

12, when the user grasps the handle 130 while the first door 110 and the second door 120 are both closed, the user pushes the pressing portion 533 of the rotating lever 530 , The rotation induction unit 537 of the rotation lever 530 is rotated backward to move backward as shown in FIG.

The first contact portion 545 and the first engagement portion 547 are engaged with the first rotation shaft (the first engagement portion 545) because the rotation inducing portion 537 moves backward while being in contact with the first contact portion 545 of the first lever unit 540. Therefore, 541 in the upper direction.

The first latching unit 547 is rotated in the upward direction about the first rotation shaft 541 and is released from the first latching member 581. The second lever unit 547 is supported by the first latching unit 547, 550 are rotated in the upward direction around the second rotation shaft 551. [

When the second contact portion 555 is rotated upward about the second rotation shaft 551, the second engagement portion 557 is rotated downward about the second rotation shaft 551 to rotate the second engagement member 583 As shown in Fig.

At this time, the first elastic member 591 is compressed by the first latching part 547, which is rotated upward about the first rotation axis 541, and is rotated downward about the second rotation axis 551 The second elastic member 593 is released from the compressed state by the second latching portion 557 so that the second latching portion 557 is retained in the second latching member 583 by the elastic force do.

The first engaging portion 547 is released from the first engaging member 581 and the second engaging portion 557 is engaged with the second engaging member 583 so that when the user rotates the handle 130 forward The first door 110 is kept closed, and the second door 120 is opened, as shown in FIGS. 16 to 17.

18, when the second door 120 is completely opened, the heat inside the cooking chamber 20 is released to the outside by the first door 110 And it is possible to see through the inside of the cooking chamber 20 through the first door 110 from the outside.

As shown in FIG. 18, when the user releases his / her hand from the handle 130 while the second door 120 is completely opened and releases the pressing force of the pressing portion 533, Likewise, the rotation inducing unit 537 is moved toward the front side (refer to FIG. 6)

When the rotation guide portion 537 is moved toward the front side, the first engaging portion 547 rotates downward about the first rotation shaft 541 by the elastic force of the compressed first elastic member 591, The first contact portion 545 is also rotated downward about the first rotation shaft 541 so that the first contact portion 545 and the rotation inducing portion 537 are kept in contact with each other.

As shown in FIG. 19, in a state where only the second door 120 is opened, the user grasps the handle 130 and closes the second door 120 as shown in FIG.

20, when the second door 120 is closed, the first engagement portion 547 is rotated downward about the first rotation shaft 541 by the elastic force of the first elastic member 591 The first latching portion 547 comes into contact with the front surface of the first latching member 581, as shown in Fig.

The first latching part 547 is pushed toward the rear face of the first elastic member 551 by pushing the second door 120 toward the rear face while the first latching part 547 is in contact with the front face of the first latching member 581, 591, and is rotated upward about the first rotation shaft 541.

The first latching part 547 is rotated in the upward direction around the first rotation shaft 541 and then rides over the front surface of the first latching member 581 as shown in FIG. It is in a hooked state.

The first engaging portion 547 which rides over the front surface of the first engaging member 581 is rotated downward about the first rotating shaft 541 by the elastic force of the compressed first elastic member 591, And is caught by the member 581.

When the first engaging portion 547 is rotated downward about the first rotation shaft 541 and the second contact portion 555 of the second lever unit 550 is pressed downward, The second engaging portion 557 is rotated in the upward direction around the second rotation shaft 551 while compressing the second elastic member 593 to rotate the second rotation shaft 551 in the upward direction about the second rotation shaft 551, And is released from the latching member 583.

18 to 19, when the user pushes the pressing part 533 while grasping the handle 130 while the second door 120 is fully opened, as shown in FIG. 16, The first engaging portion 547 is rotated in the upward direction about the first rotation shaft 541 so that the first engaging portion 581 is not brought into contact with the front surface of the first engaging member 581 when the second door 120 is closed.

In this case, when the second door 120 is closed and the user releases his or her hand from the handle 130, the pressing force of the pressing portion 533 is removed, so that the first locking portion 547 is pressed by the first elastic member And is rotated in the downward direction about the first rotating shaft 541 by the elastic force of the first engaging member 591 to be engaged with the first engaging member 581.

Next, another embodiment of the door will be described with reference to Figs. 22 to 24, in which the oven is shown schematically.

22 (a), the door 200 includes a first door 210 rotatably coupled to a front surface of the main body 10, a first door 210 A second door 220 rotatably coupled to the second door 220 and a handle 230 provided on the upper surface of the second door 220 so as to be held by a user.

The first door 210 and the second door 220 are rotatably coupled to the main body 10 by a first hinge 211. The first door 210 is formed of a plurality of transparent glasses, and the second door 220 is formed of an opaque material.

The second door 220 may be provided with a folding structure in which only the upper portion of the second door 220 is opened by the second hinge 221 provided at the central portion.

A locking device (not shown) for locking and unlocking the first door 210 to the main body 10 and allowing the second door 220 to be locked and unlocked by the first door 210 is shown in FIGS. The locking device 500 is the same as the locking device 500 shown in FIG.

22 (b), when the user grasps the handle 230 and pulls the door toward the front, the first door 210 and the second door 220 are coupled together So that the cooking chamber 20 is opened.

22 (c), in order to check the state of food or the like to be cooked in the cooking chamber 20 by inspecting the inside of the cooking chamber 20 from the outside without opening the cooking chamber 20, When the handle 230 is pulled forward to open the upper portion of the second door 220 so that the opening of the second door 220 can be opened only when the second door 220 is released from the first door 210, Through the part of the first door 210 corresponding to the portion where the first door 210 is formed.

23 (a), the door 300 includes a first door 310 rotatably coupled to a front surface of the main body 10, a first door 310 disposed on a front surface of the first door 310, A second door 320 rotatably coupled to the second door 320 and a handle 330 provided on the upper surface of the second door 320 to be held by a user.

The first door 310 includes a transparent part 311 formed of a transparent material on the upper portion of the first door 310 and an opaque part 313 provided on the lower part of the transparent part 311, And the second door 320 may be formed of an opaque material.

The first door 310 and the second door 320 are rotatably coupled to the main body 10 by a first hinge 315 and the second door 320 is coupled to a second hinge 321 The first door 310 may be provided with a folding structure in which only the portion corresponding to the transparent portion 311 of the first door 310 is opened.

A locking device (not shown) for locking and unlocking the first door 310 to the main body 10 and allowing the second door 320 to be locked and unlocked by the first door 310 is shown in FIGS. The locking device 500 is the same as the locking device 500 shown in FIG.

23 (b), when the user grasps the handle 330 and pulls it toward the front, the first door 310 and the second door 320 are coupled together So that the cooking chamber 20 is opened.

23 (c), when the user wishes to check the state of food or the like to be cooked inside the cooking chamber 20 by inspecting the inside of the cooking chamber 20 from the outside without opening the cooking chamber 20, When the handle 330 is pushed forward to open the upper portion of the second door 320 so that the opening of the second door 320 can be opened only after the second door 320 is released from the first door 310, And the transparent portion 311 of the first door 310, as shown in FIG.

24A, the door 400 includes a first door 410 rotatably coupled to a front surface of the main body 10, a first door 410 mounted on a front surface of the first door 410, A second door 420 rotatably coupled to the second door 420 and a handle 430 provided on the upper surface of the second door 420 so as to be held by a user.

The first door 410 includes a transparent portion 411 provided at a central portion of the first door 410 and a non-transparent portion 413 provided at an upper portion and a lower portion of the transparent portion 411, And the second door 420 may be made of an opaque material.

The first door 410 and the second door 420 are rotatably coupled to the main body 10 by a first hinge 415 and the second door 420 is rotatably coupled to the first hinge 415 by a second hinge 421, It may be provided with a folding structure in which only a portion corresponding to the transparent portion 411 of the door 410 is opened.

A locking device (not shown) for locking and unlocking the first door 410 to the main body 10 and allowing the second door 420 to be locked and unlocked by the first door 410 is shown in FIGS. The locking device 500 is the same as the locking device 500 shown in FIG.

24 (b), when the user grasps the handle 430 and pulls it forward, the first door 410 and the second door 420 are coupled together So that the cooking chamber 20 is opened.

24 (c), in order to check the state of food or the like to be cooked inside the cooking chamber 20 by inspecting the inside of the cooking chamber 20 from the outside without opening the cooking chamber 20, The second door 420 may be detached from the transparent portion 411 of the first door 410 when the handle 430 is pushed forward. After the second door 420 is released from the first door 410, So that the opening of the second door 420 and the transparent portion 411 of the first door 410 can be seen through the inside of the cooking chamber 20. [

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the exemplary embodiments and constructions. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention. Should be interpreted.

10: main body 11: front panel
11a: opening 13: side panel
15: rear panel 15a: through hole
17: Electric field seal cover
20: cooking chamber 21: support
22: heater 23: rack
24: Circular motor 25: Circulating fan
26: fan cover 27: through hole
30: Cooktop
40: Storage room
50: display module 51:
60: electric field room 61: insulation
62: cooling fan unit 63: cooling channel
64: Discharge port 65:
66: Bypass hole 67: Switching device
100, 200, 300, 400: Door
110, 210, 310, 410: a first door
111: front glass 112: rear glass
113: intermediate glass 114: side support frame
115: upper support frame 116: first opening
117, 211, 315, 415: First hinge 311, 411:
313, 413: opaque portion
120, 220, 320, 420: a second door
121: second opening 123, 221, 321, 421: second hinge
130, 230, 330, 430:
131: Support receiving part 133: Support coupling hole
500: Locking device
510: housing 511: first coupling hole
513: Hinge hole 515: First support part
520: rear cover 521: second engagement hole
523: opening 525: cover part
530: rotation lever 531: hinge projection
533: pressing portion 535: second supporting portion
537:
540: first lever unit 541: first rotating shaft
543: first rotating hole 545: first contact portion
547: first latching portion 549: first support projection
550: second lever unit 551: second rotating shaft
553: third rotating hole 555: second contact portion
557: second latching portion 559: third support projection
560: first bracket 561: second rotation hole
563: second supporting projection
570: second bracket 571: fourth rotating hole
573: fourth support projection
580: engaging member 581: first engaging member
583: second engaging member
590: elastic member 591: first elastic member
593: second elastic member
S: spring B: fastening member

Claims (20)

main body;
A cooking chamber having a front surface opened inside the main body;
A first door which is rotatably coupled to the main body and opens and closes the cooking chamber and is made of a transparent material so as to be able to pass through the inside of the cooking chamber from the outside and is locked and unlocked by the locking device; And
A second door provided in an opaque material and rotatably coupled to a front surface of the first door, the second door being engaged and disengaged by the locking device;
. The method according to claim 1,
A handle coupled to a front surface of the second door, the locking device comprising: a support coupled to the handle; a rotation lever coupled to the support in a forward and backward direction to be rotatable; The oven includes a lever unit, a bracket rotatably coupled to the lever unit, and a latching member for latching and releasing the lever unit. 3. The method of claim 2,
Wherein the engaging member includes a first engaging member provided on the first door and a second engaging member provided on the main body. The method of claim 3,
The lever unit includes a first lever unit interlocked with the rotation lever to be engaged with and released from the first engagement member, a second lever unit interlocked with the first lever unit to engage and disengage from the second engagement member, . 5. The method of claim 4,
The bracket includes a first bracket coupled to a front surface of the second door and rotatably coupled with the first lever unit, a second bracket coupled to the first door and rotatably coupled with the second lever unit, Oven included. 6. The method of claim 5,
The support includes a housing received and coupled to a rear surface of the handle, and a rear cover coupled to an open rear surface of the housing, wherein the rotary lever is rotatably coupled to the housing. The method according to claim 6,
The rotary lever includes a hinge protrusion rotatably coupled to the housing, a pressing part exposed to the outside of the rear cover and rotated in the forward and backward directions about the hinge protrusion, a supporting part elastically supported by the housing by a spring, And a rotation inducing portion which is in contact with the first lever unit and is rotated in the front-rear direction about the hinge projections to induce rotation of the first lever unit. 8. The method of claim 7,
The first lever unit includes a first contact portion that is rotatably coupled to the first bracket by a first rotation shaft and contacts the rotation guide portion and is rotated in the vertical direction about the first rotation axis, And a first engaging portion which is rotated in a vertical direction about the first rotation axis to be engaged and disengaged by the first engaging member. 9. The method of claim 8,
The second lever unit includes a second contact portion rotatably coupled to the second bracket by a second rotation shaft and contacting the first engagement portion and being rotated in a vertical direction about the second rotation axis, And a second engaging portion which is rotated in a vertical direction about the rotation axis to be engaged and disengaged by the second engaging member. The method according to claim 1,
The second door is held in the first door by the locking device and the first door and the second door are opened together when the first door is released from the main body, The oven being. The method according to claim 1,
When the first door is in the locked state with the main body, the first door maintains the closed state of the cooking chamber, and when the second door is in the locked state with the main body, The oven opens only the door. 12. The method of claim 11,
When the first door closes the cooking chamber and only the second door is opened, the heat inside the cooking chamber is blocked from being discharged to the outside by the first door, and the inside of the cooking chamber Oven to be viewed. The method according to claim 1,
Wherein the second door is provided with a foldable structure in which the second door can be partially opened, the second door is held by the locking device in the first door, and when the first door is in the unlocked state with the main body, The first door and the second door are opened together to open the cooking chamber. The method according to claim 1,
Wherein the second door is provided with a foldable structure in which the second door can be opened only partially and the second door is released from the first door by the locking device, Wherein the first door maintains the closed state of the cooking chamber and the second door is partially opened. 15. The method of claim 14,
When the first door closes the cooking chamber and only a part of the second door is opened, the heat inside the cooking chamber is blocked from being discharged to the outside by the first door, and the open portion of the second door And the inside of the cooking chamber is viewed through a part of the corresponding first door. main body;
A cooking chamber having a front surface opened inside the main body;
A transparent part rotatably coupled to the body to open and close the cooking chamber, a transparent part made of a transparent material so as to be able to open the inside of the cooking chamber from the outside, and an opaque part provided with an opaque material, The first door being locked and unlocked by the first door; And
A second door provided in an opaque material and rotatably coupled to a front surface of the first door, the second door being engaged and disengaged by the locking device;
. 17. The method of claim 16,
Wherein the second door is provided with a foldable structure in which the second door can be partially opened, the second door is held by the locking device in the first door, and when the first door is in the unlocked state with the main body, The first door and the second door are opened together to open the cooking chamber. 17. The method of claim 16,
Wherein the second door is provided with a foldable structure that allows only the portion corresponding to the transparent portion to be opened, the second door is released from the first door by the locking device, Wherein the first door maintains the closed state of the cooking chamber when the main body is in the locked state, and the second door opens only the portion corresponding to the transparent portion. 19. The method of claim 18,
When the first door closes the cooking chamber and only the portion corresponding to the transparent portion of the second door is opened, the heat inside the cooking chamber is blocked from being discharged to the outside by the first door, Wherein the inside of the oven is viewed through an open portion of the door. main body;
A cooking chamber having a front surface opened inside the main body;
A first door including a transparent part rotatably coupled to the body to open and close the cooking chamber, a transparent part made of a transparent material so as to be able to see through the inside of the cooking chamber from the outside, and an opaque part provided with an opaque material; And
A second door provided in an opaque material and rotatably provided on a front surface of the first door so as to open and close the transparent portion;
.

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