KR20230139272A - Cooking appliance - Google Patents

Abstract

An invention for a cooking appliance is disclosed. The disclosed invention includes: a locking mechanism that selectively prevents rearward movement of a door button for opening a door, the locking mechanism including a rocker provided to enable posture change and an operation module provided to enable a push operation, The attitude of the module is characterized in that it can be changed to either an attitude that allows the linear movement of the door button or an attitude that prevents the linear movement of the door button.

Description

Cooking Appliance{COOKING APPLIANCE}

The present invention relates to a cooking appliance, and more specifically, to a cooking appliance having a door that opens and closes a cooking chamber.

The present invention relates to home appliances, and more specifically, to home appliances whose doors have a viewing window for viewing the inside from the outside.

A cooking appliance is a type of home appliance used to cook food and is installed in a kitchen space to cook food according to the user's intention. These cooking appliances can be classified in various ways depending on the heat source or type used and the type of fuel.

Cooking appliances can be classified into open and closed cooking appliances depending on the type of space where food is placed. Closed cooking appliances include ovens and microwaves, while open cooking appliances include cooktops and hobs.

A closed cooking appliance is a cooking appliance that shields the space where food is located and cooks the food by heating the shielded space. In a closed cooking appliance, a chamber, or cooking room, which is a space where food is placed and shielded when food is to be cooked, is provided inside the main body. This galley is actually a space where food is cooked. A heat source is provided in the interior or exterior space of the galley to heat the galley.

Among closed cooking appliances, a microwave oven is a cooking device that generates microwaves using electricity, penetrates the cooking objects contained within the cooking chamber, and heats the cooking objects by causing molecular movement within them.

A microwave oven is a kitchen appliance that simultaneously heats the inside and outside of food by radiating high frequency waves from a magnetron to the food. It has high thermal efficiency, drastically shortening the cooking time of food, and reducing the loss of nutritional value during the cooking, thawing, and warming process. It is widely used due to its advantages such as being able to cook food directly while storing it in a container.

These microwave ovens are usually equipped with a door for opening and closing a cooking chamber formed inside the main body. As a door provided in a microwave oven, depending on the opening and closing type, a left and right openable door, a top and bottom openable door, and a sliding door can be applied. Among them, the most commonly used door is a left and right openable door.

Additionally, a latch may be provided between the main body and the door to selectively fix the door that opens and closes the galley. The latch functions as a hook to maintain the closed state of the door, while also detecting the closed state of the door to prevent cooking from proceeding with the door open.

Typically, the latch does not secure the door so that it cannot be fully opened. That is, if a predetermined force or more is applied to the door while the door is closed in the galley, the fixed state of the door by the latch is released without any other manipulation, and the door can rotate or slide accordingly to open the galley.

Due to the opening and closing structure of the door as described above, the door can be easily opened when the user pulls the door, so the cooking chamber often unintentionally opens during operation of the microwave due to user error or children's play. It can happen.

If the cooking chamber is unintentionally opened during operation of the microwave oven, there is a risk of injury to the user, such as burns, due to the heat inside the cooking chamber where food is being cooked.

Additionally, if children frequently open and close the door even when cooking is not in progress, the latch may wear out quickly, and the worn latch may cause the door to become unstable in its opening and closing operation.

The purpose of the present invention is to provide a cooking appliance with an improved structure so that the door can be fixed with high reliability to prevent unintentional opening of the cooking chamber.

Another object of the present invention is to provide a cooking appliance with an improved structure so that the door can be easily and conveniently fixed and unfastened.

Another object of the present invention is to provide a cooking appliance with an improved structure so that the user can select whether to use the double door fixing function to safely fix the door according to his or her needs.

A cooking appliance according to an embodiment of the present invention for achieving the above object includes a locking mechanism that selectively prevents the rearward movement of the door button for opening the door, and the locking mechanism includes a rocker and a press provided to enable posture change. It includes an operation button that can be operated, and the operation button is characterized in that the posture of the rocker can be changed into a posture that prevents the rearward movement of the door button and a posture that allows the rearward movement of the door button.

As a result, the door can be fixed with high reliability to prevent unintentional opening of the galley.

In addition, another form of the present invention includes a locking mechanism that selectively prevents the rearward movement of the door button for opening the door, and this locking mechanism includes a rocker provided to enable posture change and an operation module provided to enable pressing operation. It is characterized in that the posture of the operation module can be changed to one of the postures that allow the linear movement of the door button and the posture that prevents the linear movement of the door button.

Another form of the present invention includes a locking mechanism that selectively blocks rearward movement of a door button for opening a door, and this locking mechanism is capable of linear movement and rotation in a rocker and button housing provided to allow posture change. It includes an operation button that is installed properly, and when the operation button is rotated, the operation module changes the state of the operation button to one of the postures that allow the linear movement of the operation button and the state in which the linear movement of the operation button is restricted by the button housing. It is characterized by being

This allows the user to choose whether or not to use the double door fixing function to safely secure the door, depending on the user's needs.

When the posture of the locker is one that prevents the rearward movement of the door button, at least a portion of the rocker may be disposed in the movement path of the door button.

Additionally, when the posture of the locker allows the door button to move backward, the rocker may deviate from the movement path of the door button.

Through this, the locking state of the door button must be released first before the operation to open the door can be performed, thereby preventing unintentional opening of the cooking chamber during operation of the cooking appliance.

A cooking appliance according to an aspect of the present invention includes: a main body having a cooking chamber formed therein and an open front surface; a door disposed in front of the main body and rotatably coupled to the main body to open and close the cooking compartment; a latch mechanism installed on the door to be selectively coupled to the main body and coupled to the main body to fix the door in a closed position; a door button that can be pressed and moves to the pressed position to separate the latch mechanism from the main body; and a locking mechanism that selectively prevents movement of the door button.

In addition, the locking mechanism includes a locker that can change its posture between a locking posture that prevents the door button from moving to the pressed position and an unlocking posture that allows the door button to move to the pressed position; and an operation module that is provided to enable a press operation and changes the posture of the rocker from the lock posture to the unlock posture when the rocker is pressed.

Additionally, the operation module may include a button housing coupled to the main body, and an operation button inserted into the button housing and installed on the button housing to enable linear movement and rotation.

Additionally, when the operation button is pressed, it moves in a straight direction to change the posture of the rocker.

Additionally, when the operation button is rotated, the posture of the operation module may be changed to one of a posture that allows movement of the operation button in a straight direction and a posture that prevents movement of the operation button in a straight direction.

In addition, the operation button may include a pressing surface that can be pressed, and an insertion shaft that protrudes from the pressing surface and is inserted into the hollow of the button housing.

In addition, the fitting shaft is preferably coupled to the inside of the button housing to enable linear movement and rotation, and is connected to the rocker to change the posture of the rocker.

In addition, the button housing is provided with a locking groove that is concavely formed from an end of the button housing in the direction of movement of the operation button, and the operation button has a locking protrusion that protrudes in the centrifugal direction from the fitting axis and is inserted into the locking groove. It is desirable to include it.

In addition, the locking protrusion preferably moves in a straight direction along the fitting axis and moves to either an insertion position where it is inserted into the locking groove or a separation position where it deviates from the locking groove.

Additionally, the fitting shaft may push the rocker to change the posture of the rocker from the locked posture to the unlocked posture.

Additionally, when the posture of the rocker changes to the unlocked state, it is preferable that the locking protrusion moves to the release position.

In addition, the operation module may further include an elastic member that provides elastic force to return the pressed operation button to its original position.

Additionally, it is preferable that a locking end is provided at an end of the button housing to block movement of the locking protrusion from the release position toward the insertion position.

Additionally, it is preferable that the locking groove and the locking end are arranged in the rotation direction of the operation button.

In addition, the button housing further includes a rotation inhibiting protrusion disposed between the locking groove and the locking end, and the rotation inhibiting protrusion is preferably formed to protrude further from an end of the button housing than the commercial locking end.

Additionally, the operation button may further include an operation groove formed in a concave groove shape on the pressing surface.

Additionally, the door button may include a pressing surface that can be pressed, and an edge protrusion extending rearward from a lateral edge of the pressing surface.

Additionally, when the posture of the locker is the unlocked posture, the locking mechanism is preferably disposed laterally outside the door button.

Additionally, when the rocker is in a locked posture, it is preferable that at least a portion of the rocker is disposed in the movement path of the edge projection.

Additionally, when the locker is in the locked posture, it is preferable that at least a portion of the locker is disposed in the movement path of the door button.

Additionally, when the posture of the locker is the unlocked posture, it is preferable that the locker deviates from the movement path of the door button.

In addition, the rocker includes a rotation shaft rotatable about a forward-backward axis; A device that prevents the door button from moving in the locked position from the rear, allows the door button to move in the unlocked position, and is connected to the rotating shaft so that it can move between the locked and unlocked positions in conjunction with the rotation of the rotating shaft. locking protrusion; and a connecting protrusion that extends from the rotation axis to be connected to the operation button, moves in conjunction with the movement of the operation button, and rotates the rotation axis.

In addition, the connecting protrusion protrudes from the rotating shaft in a centrifugal direction of the rotating shaft, the operating button is disposed on one side of the connecting protrusion and moves laterally, and the connecting protrusion is linked to the lateral movement of the operating button. It is desirable to move in the rotation direction of the rotation axis.

In addition, the present invention further includes a control panel disposed in front of the main body and on a side of the door, and the operation module is preferably installed on a side of the control panel.

In addition, an operation module insertion hole is formed to penetrate laterally on the side of the control panel, the button housing is inserted into the operation module insertion hole and coupled to the side of the control panel, and the operation button is movable in the side direction. It is preferably installed on the button housing.

In addition, the operation module preferably includes a hook member having a protrusion protruding in a centrifugal direction from the button housing, and the hook member is provided to be elastically deformable in the radial direction of the button housing.

In addition, the rocker includes a rotation shaft rotatable about a forward-backward axis; It prevents the door button from moving in the first locking position, allows the door button to move from the first unlocking position, and moves to the first locking position and the first unlocking position in conjunction with the rotation of the rotation shaft. a first locking protrusion connected to the rotation axis; and a first connection protrusion extending from the rotation axis so as to be connected to the operation button, moving in conjunction with the movement of the operation button, and rotating the rotation axis.

In addition, the first connection protrusion protrudes from the rotation axis in a centrifugal direction of the rotation axis, the operation button is disposed on one side of the first connection protrusion and moves laterally, and the first connection protrusion is the operation button. It is preferable to move in the rotation direction of the rotation axis in conjunction with the lateral movement of .

In addition, the first locking protrusion and the first connecting protrusion preferably protrude from the rotating shaft in a centrifugal direction of the rotating shaft, but each protrude in different directions.

In addition, the locker preferably further includes a second locking protrusion that prevents movement of the door button in the second locking position when the first locking protrusion is in the first locking position.

In addition, the second locking protrusion preferably protrudes from the rotating shaft in a centrifugal direction of the rotating shaft, but protrudes in a direction different from the protruding direction of the first locking protrusion.

In addition, the locker preferably further includes a third locking protrusion that prevents movement of the door button in the third locking position when the first locking protrusion is in the first locking position.

In addition, the third stopping protrusion preferably protrudes from the first connecting protrusion in a direction different from the protruding direction of the first connecting protrusion.

In addition, the door button preferably includes a pressing surface that can be pressed, and first to third rear protrusions that protrude rearward from the pressing surface.

In addition, the first locking protrusion is disposed on a moving path of the first rear projection in the first locking position, the second locking protrusion is disposed on a moving path of the second rear projection in the second locking position, and the third The locking protrusion is preferably disposed in the movement path of the third rear protrusion at the third locking position.

In addition, it is preferable that the first rear protrusion is arranged to be spaced laterally from the second rear protrusion, and at least one of the first rear protrusion and the second rear protrusion is arranged to be spaced apart from the third rear protrusion in the vertical direction. .

The cooking appliance of the present invention allows the door to be fixed with high reliability by a locking mechanism provided to secure the door to the main body so that the door remains closed in the cooking compartment, thereby preventing unintentional damage to the cooking compartment during operation of the cooking appliance. It is possible to effectively prevent opening.

In addition, the present invention allows the door to be released easily and conveniently by simply manipulating the operation button.

In addition, the present invention allows the door fixing operation of the locking mechanism to the door that closes the cooking chamber to be performed automatically without any separate operation, thereby improving the safety of the cooking appliance and also improving the convenience of operation. It can provide an effect that allows

In addition, the present invention allows the fixing and unfixing of the door to be easily and conveniently performed, thereby preventing frequent unnecessary opening and closing, thereby preventing the opening and closing operation of the door due to an abnormally rapidly worn latch mechanism. It can effectively suppress instability.

In addition, the present invention can provide a two-step locking function that requires two or more operations to open the door, and when the two-step locking function is not necessary, the function can be easily and conveniently released, thereby protecting the cooking appliance. It can provide the effect of improving both stability and convenience.

Figure 1 is a perspective view showing a cooking appliance according to an embodiment of the present invention.
FIG. 2 is a perspective view showing the door of the cooking appliance shown in FIG. 1 in an open state.
Figure 3 is a perspective view showing the control panel shown in Figure 1 separated.
Figure 4 is a front exploded perspective view showing the disassembled state of the control panel and locking mechanism shown in Figure 3.
Figure 5 is an exploded rear perspective view showing the disassembled state of the control panel and locking mechanism shown in Figure 3.
Figure 6 is an enlarged rear view of the door button shown in Figure 3.
Figure 7 is a cross-sectional view showing the internal structure of the operation module of Figure 6.
Figure 8 is a cross-sectional view showing the internal structure of a locking mechanism according to an embodiment of the present invention.
Figure 9 is a cross-sectional perspective view showing the internal structure of a locking mechanism according to an embodiment of the present invention.
Figure 10 is an enlarged view of a portion of the door button and locking mechanism shown in Figure 9.
Figure 11 is a rear view showing the unlocked state of the locking mechanism shown in Figure 6.
FIG. 12 is a cross-sectional view showing the internal structure of the locking mechanism shown in FIG. 10.
Figure 13 is a rear view showing the state of the transmission panel and the rocker fixing member when the rocker is in the locked position.
Figure 14 is a front view showing the state in which the rocker fixing member is excluded from the drawing shown in Figure 13.
FIG. 15 is a cross-sectional view taken along the line “XV-XV” in FIG. 13.
Figure 16 is a front view showing the state of the transmission panel and the rocker fixing member when the rocker is in the unlocked position.
FIG. 17 is a cross-sectional view taken along the line “XVII-XVII” in FIG. 16.
Figure 18 is a cross-sectional view showing the power transmission member shown in Figure 17 moved to the disengaged position.
Figure 19 is a rear perspective view showing the locked state of the locking mechanism according to an embodiment of the present invention.
Figure 20 is a rear perspective view showing the unlocked state of the locking mechanism shown in Figure 19.
FIG. 21 is a rear perspective view showing a state in which the function of the locking mechanism shown in FIG. 20 is released.
Figure 22 is a front exploded perspective view showing the disassembled state of the control panel and locking mechanism according to another embodiment of the present invention.
Figure 23 is an exploded rear perspective view showing the disassembled state of the control panel and locking mechanism according to another embodiment of the present invention.
Figure 24 is an enlarged front view of a door button according to another embodiment of the present invention.
FIG. 25 is a cross-sectional perspective view showing a cross section along the line “ⅩⅩⅥ-ⅩⅩⅥ” in FIG. 24.
FIG. 26 is a cross-sectional view taken along the line “ⅩⅩⅥ-ⅩⅩⅥ” in FIG. 24.
Figure 27 is a front view showing the unlocked state of the locking mechanism shown in Figure 24.
FIG. 28 is a cross-sectional view taken along the line “ⅩⅩⅧ-ⅩⅩⅧ” in FIG. 27.
Figure 29 is a front view showing the state of the transmission panel and the locking mechanism when the locker is in the locked position.
Figure 30 is a front view showing the state of the transmission panel and the locking mechanism when the locker is in the unlocked position.
FIG. 31 is a cross-sectional view taken along the line “ⅩⅩⅩⅠ-ⅩⅩⅩⅠ” in FIG. 30.
Figure 32 is a cross-sectional view showing the power transmission member shown in Figure 31 moved to the disengaged position.

The above-mentioned objects, features, and advantages will be described in detail later with reference to the attached drawings, so that those skilled in the art will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of known technologies related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. In the drawings, identical reference numerals are used to indicate identical or similar components.

Although first, second, etc. are used to describe various components, these components are of course not limited by these terms. These terms are only used to distinguish one component from another component, and unless specifically stated to the contrary, the first component may also be a second component.

The present invention is not limited to the embodiments disclosed below, but may be subject to various changes and may be implemented in various different forms. This example is provided solely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. Therefore, the present invention is not limited to the embodiments disclosed below, but substitutes or adds to the configuration of one embodiment and the configuration of another embodiment, as well as all changes and equivalents included in the technical spirit and scope of the present invention. It should be understood to include substitutes.

The attached drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed in this specification is not limited by the attached drawings, and all changes, equivalents, and changes included in the spirit and technical scope of the present invention are not limited. It should be understood to include water or substitutes. In the drawings, components may be expressed exaggeratedly large or small in size or thickness for convenience of understanding, etc., but the scope of protection of the present invention should not be construed as limited due to this.

The terms used in this specification are only used to describe specific implementations or examples, and are not intended to limit the invention. And singular expressions include plural expressions, unless the context clearly dictates otherwise. In the specification, terms such as ~include, ~consist of, etc. are intended to indicate the existence of features, numbers, steps, operations, components, parts, or a combination thereof described in the specification. In other words, terms such as ~include, ~consist, etc. in the specification. It should be understood that this does not exclude in advance the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

When a component is referred to as being "on top" or "below" another component, it should be understood that not only is it placed directly on top of the other component, but there may also be other components in between. .

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

When the cooking appliance is placed on the floor, the direction in which the door is installed relative to the center of the cooking appliance is defined as forward. Therefore, the direction of opening the door and entering the inside of the cooking appliance is from the rear. For convenience, the direction facing forward and backward can be referred to as the first direction. Then, the front can be said to be one side of the first direction, and the rear can be said to be the other side of the first direction.

Additionally, the direction of gravity can be defined as downward, and the direction opposite to the direction of gravity can be defined as upward.

In addition, the horizontal direction perpendicular to the front-to-back direction of the cooking appliance, that is, the width direction of the cooking appliance when looking at the cooking appliance from the front of the cooking appliance's door, can be referred to as the left-right direction. For convenience, the left and right direction can be referred to as the second direction. Then, the right side can be said to be one side of the second direction, and the left side can be said to be the other side of the second direction.

Additionally, the width direction of the cooking appliance may be referred to as the lateral direction. Then, the right side can be said to be one side of the lateral direction, and the left side can be said to be the other side of the lateral direction.

And, the above-mentioned upward and downward direction can be referred to as the third direction. Then, the upper direction can be said to be one side of the third direction, and the downward direction can be said to be the other side of the third direction.

Additionally, the above-mentioned vertical direction may be referred to as the vertical direction. Then, it can be said to be a horizontal direction including the front-to-back direction and the left-right direction, that is, the first direction and the second direction.

Throughout the specification, when referred to as “A and/or B”, this means A, B or A and B, unless specifically stated to the contrary, and when referred to as “C to D”, this means unless specifically stated to the contrary. Unless there is one, it means that it is C or higher and D or lower.

[Overall structure of cooking appliance]

FIG. 1 is a perspective view showing a cooking appliance according to an embodiment of the present invention, and FIG. 2 is a perspective view showing the door of the cooking appliance shown in FIG. 1 in an open state.

Referring to Figures 1 and 2, the exterior of the cooking appliance according to an embodiment of the present invention is formed by the main body 10. The main body 10 may be provided in a form including a substantially rectangular parallelepiped shape, and may be formed of a material having a predetermined strength in order to protect a number of components installed in the internal space. This main body 10 may include a cavity 11 and a cabinet 13.

The cavity 11 may form the internal skeleton of the main body 10. This cavity 11 may be formed in the shape of a hexahedron with an open front surface. Inside the cavity 11, a cooking chamber 14 may be formed. The cooking chamber 14 may be formed in a shape corresponding to the internal shape of the cavity 11, that is, in the form of a hexahedron with an open front.

The cooking chamber 14 may be formed in the form of a hexahedron with an open front. In a state where the cooking chamber 14 is shielded, cooking can be performed while the internal space of the cooking chamber 14 is heated. That is, in a cooking appliance, the internal space of the cooking chamber 14 is a space where food is actually cooked.

The cabinet 13 may form the exterior of the main body 10 outside the cavity 11. This cabinet 13 covers the cavity 11 from the top and sides and can form the exterior of the main body 10.

In this embodiment, the front plate 12 is illustrated as being disposed in front of the cavity 11.

The front plate 12 may form the front exterior of the main body 10 in front of the cavity 11. As an example, the front plate 12 may be provided in the form of a hollow metal plate.

In front of the main body 10, a rotatable door 20 may be provided to selectively open and close the cooking compartment 14. The door 20 can open and close the galley 14 using a side-swing method in which the other lateral side rotates left and right around one lateral side. For example, the door 20 can close the cooking chamber 14 in the closed position, and can open the cooking chamber 14 by rotating from the closed position.

This door 20 may be formed in the shape of a hexahedron having a predetermined overall thickness. And a hinge may be installed between the main body 10 and the door. The hinge is disposed on one lateral side of the main body 10 and can rotatably couple one lateral side of the door 20 to the main body 10 . The door 20 may be rotatably coupled to a hinge at the front of the main body 10, and may open and close the galley chamber 14 by rotating around the hinge.

Additionally, a cooking chamber heat source for heating the cooking chamber 14 is provided inside the main body 10. The cooking chamber heat source may be implemented as one type, or may be implemented as two or more types.

In this embodiment, the cooking chamber heat source is illustrated as including a magnetron that can supply a high-frequency heat source inside the cooking chamber 14. At this time, the magnetron may be installed inside the main body 10, but may be installed at the top or side of the cooking chamber 14.

Additionally, an electrical equipment compartment may be formed inside the main body 10, located above or on the side of the cooking compartment 14 within the main body 10. In this embodiment, the magnetron and the electrical equipment compartment are illustrated as being disposed on the side of the cooking compartment 14. Inside the electrical equipment room, electrical components such as magnetrons and high-voltage transformers may be installed.

In addition, a control panel 15 may be provided on the front of the main body 10. The control panel 15 may be placed on the front side of the cavity 11 and may be placed in an area that does not overlap the galley 14 in the front-to-back direction. For example, the electrical equipment room may be placed on the side of the galley 14, and the control panel 15 may be placed on the front side of the electronic equipment room.

The control panel 15 may be in the shape of a hexahedron with a predetermined internal space, and an input unit 16 through which a user inputs a manipulation signal to operate the cooking appliance is provided on the front of the control panel 15.

The input unit 16 is provided with a plurality of operation switches, through which the user can directly input operation signals.

In addition, the control panel 15 may be further provided with a display unit 17 that provides operation information of the door and the cooking appliance equipped with the same or cooking information of food, and the user can view various information about the cooking appliance through the display unit 17. You can check the information.

In addition, a door button 30 may be provided on the control panel 15. In this embodiment, the door button 30 is illustrated as being disposed lower than the display unit 17 and the input unit 16. This door button 30 can function as a switch used to open the door 20.

In this embodiment, the door button 30 is illustrated as being provided in the form of a push button. In this case, when the door button 30 is pressed, the latch mechanism 40 is separated from the structure holding the latch mechanism, which will be described later, and the door 20 can be opened.

As another example, the door button 30 may be provided as an electronic button, or the door 20 may be provided in a structure that allows the door 20 to be opened without the door button 30. There may be various variant embodiments of the structure related to opening.

[Door structure]

The door 20 may include a door panel 21 that forms the framework of the door 20. The door panel 21 may be formed in a hexahedral shape corresponding to the front shape of the main body 10. An open window 22 may be formed to penetrate the inside of the door panel 21 so that the inside of the cooking compartment 14 can be visually identified. In this embodiment, the door panel 21 is illustrated as being made of a metal material with a predetermined strength.

Additionally, a door frame 25 may be installed outside the door panel 21. The door frame 25 forms the front, top, bottom, and side exteriors of the door 20, and may be formed in a hexahedral shape with an open back. The door panel 21 can be accommodated inside the door frame 25.

In addition, a hinge may be installed on one lateral side of the door frame 25 to rotatably couple the door panel 21 to the main body 10. These hinges may be installed at the top and bottom of one lateral side of the door frame 25, respectively.

Meanwhile, the cooking appliance may further include a latch mechanism 40. The latch mechanism 40 may be provided to secure the door 20 in the closed position.

In this embodiment, the latch mechanism 40 is illustrated as being installed on the door 20. In this way, the latch mechanism 40 installed on the door 20 penetrates the latch slot formed through the front of the main body 10 when the door 20 shields the galley 14, thereby locking the main body 10. Can be inserted into the interior of .

In this way, the latch mechanism 40 inserted into the main body 10 can selectively fix the door 20 to the main body 10 by engaging and engaging with a locking structure installed inside the main body 10.

The rotation of the door 20 with respect to the main body 10 is limited by the action of the latch mechanism 40, so that the cooking compartment 14 can be maintained in a state substantially shielded by the door 20. In addition, it is possible to detect whether the door 20 is closed through an operation of detecting whether the latch mechanism 40 and the locking structure are engaged, and through this, the cooking appliance can be controlled to prevent cooking from proceeding with the door 20 open. You can also control movements.

Meanwhile, the cooking appliance may further include a locking mechanism 300. The locking mechanism 300 may serve to fix the door 20 in the closed position together with the latch mechanism 40.

The locking mechanism 300 may be provided to fix the door button 30 so that the door button 30 cannot be manipulated. This locking mechanism 300 may be placed on the control panel 15 and adjacent to the door button 30.

Specifically, the locking mechanism 300 may be disposed on the lower side of the control panel 15 and the rear side of the door button 30. This locking mechanism 300 is provided to restrict the movement of the door button 30. If the door button 30 is not operated, the door 20 cannot be opened, so the locking mechanism 300 restrains the movement of the door button 30 and ultimately restricts the rotation of the door 20. do.

Accordingly, in the cooking appliance of this embodiment, the door 20 can be provided in a double-fixed state by the latch mechanism 40 and the locking mechanism 300. That is, in order for the door 20 to open the cooking chamber 14 in the cooking appliance of this embodiment, not only must the connection between the latch mechanism 40 and the main body 10 be released, but also the locking mechanism 300 and the door button 30 must be released. ) must also be released.

[Structure of door button and its surroundings]

Figure 3 is an exploded perspective view of the control panel shown in Figure 1, and Figure 4 is an exploded front perspective view showing the control panel and locking mechanism shown in Figure 3 in an exploded state. Additionally, Figure 5 is an exploded rear perspective view showing the disassembled state of the control panel and locking mechanism shown in Figure 3, and Figure 6 is an enlarged rear view showing the door button shown in Figure 3.

Referring to FIGS. 3 to 6 , the door button 30 is installed on the control panel 15 and can be pressed and operated. This door button 30, when pressed, moves to the pressed position and acts to separate the latch mechanism 40 from the main body 10, more specifically, the locking structure provided on the main body 10.

A door button insertion hole 15a may be provided in the control panel 15. The door button insertion hole 15a is disposed on the lower side of the control panel 15 and may be formed to penetrate the control panel 15 in the front and rear directions.

The door button 30 may be inserted into the door button insertion hole 15a and installed on the control panel 15 to be movable in the forward and backward directions. This door button 30 may include a pressing surface 31 and an edge protrusion 33.

The pressing surface 31 corresponds to the front of the door button 30 that can be pressed. This pressing surface 31 may form a plane substantially parallel to the front of the control panel 15. The edge projection 33 may be formed to extend rearward from the lateral edge of the pressing surface 31.

The control panel 15 may include a front that forms the front exterior of the control panel 15, and a side that extends rearward from the front edge of the control panel 15. The front of the control panel 15 may form a surface substantially parallel to the door 20. An input unit 16 and a display unit 17 may be placed on the front of the control panel 15.

The door button insertion hole 15a can penetrate the front of the control panel 15 in the front-to-back direction. And, the inner surface 18 of the control panel 15 may be formed around the door button insertion hole 15a. The inner surface 18 of the control panel 15 forms a wall extending backward from the front of the control panel 15 on the inside of the control panel 15 in a form that surrounds the door button insertion hole 15a from the outside. can do.

The edge protrusion 33 of the door button 30 forms a surface parallel to the inner surface 18 of the control panel 15 and may extend rearward from the pressing surface 31. The edge protrusion 33 of the door button 30 may be coupled to the inner surface 18 of the control panel 15 to be slidable in the forward and backward directions. Accordingly, the door button 30 can be installed on the control panel 15 to be operable by pressing it.

In addition, the control panel 15 may further include a rear support surface 19. The rear support surface 19 is disposed inside the door button insertion hole 15a, and the surface disposed rear than the front of the control panel 15 may be formed inside the door button insertion hole 15a.

The door button 30 may be combined with the rear support surface 19 and supported by the control panel 15. As an example, the door button 30 may be coupled to the rear support surface 19 through the fitting protrusion 35.

The fitting protrusion 35 may protrude rearward from the pressing surface 31. The door button 30 may be provided with a plurality of fitting protrusions 35. For example, a pair of fitting protrusions 35 are disposed on the upper side of the door button 30 to be laterally spaced apart, and a pair of fitting protrusions 35 are disposed on the lower side of the door button 30 to be spaced laterally. can be placed.

Each fitting protrusion 35 penetrates the rear support surface 19 and can be coupled to the rear support surface 19 to be movable in the front and rear directions. By coupling between the fitting protrusion 35 and the rear support surface 19, the door button 30 can be installed on the control panel 15 to be movable in the forward and backward directions.

A hook projection (37a) may be provided at the rear end of each fitting projection (35). The hook protrusion 37a may be formed to protrude in a vertical or lateral direction from the rear end of the fitting protrusion 35. For example, the hook protrusion 37a provided on the fitting protrusion 35 disposed on the upper side of the door button 30 may be formed to protrude upward. Additionally, the hook protrusion 37a provided on the fitting protrusion 35 disposed on the lower side of the door button 30 may be formed to protrude downward.

Each hook projection (37a) can be caught on the rear surface of the rear support surface (19) and restrict the forward movement of the fitting projection (35). That is, the door button 30 can be installed to be movable in the front and rear directions on the control panel 15 by coupling between the fitting protrusion 35 and the rear support surface 19, and the hook protrusion 37a is connected to the rear support surface ( It is possible to prevent the door button 30 from being separated from the control panel 15 by being caught by 19).

Meanwhile, the cooking appliance of this embodiment may further include a power transmission member 50. The power transmission member 50 may be provided to be movable between the engaged position and the disengaged position. The power transmission member 50 may allow coupling of the latch mechanism 40 and the main body 10 at the coupling position. Additionally, the power transmission member 50 can disengage the latch mechanism 40 and the main body 10 at the disengaged position.

The power transmission member 50 may be disposed at the rear of the rear support surface 19. In other words, the rear support surface 19 may be disposed between the rear support surface 19 and the power transmission member 50, more specifically between the rear support surface 19 and the transmission panel 55, which will be described later. .

In this embodiment, the power transmission member 50 is illustrated as including a transmission shaft 51 and a transmission panel 55.

The transmission shaft 51 may be provided to be rotatable about a lateral axis. This transmission shaft 51 is connected to the latch mechanism 40 and can change the position of the latch mechanism 40.

For example, the latch mechanism 40 engaged with the locking structure can be moved to a position separated from the locking structure by the rotation shaft 111 that rotates in one direction. Additionally, the latch mechanism 40 can be moved to a position where it is engaged with the locking structure by the rotation shaft 111 rotating in the other direction.

That is, when the power transmission member 50 moves from the engaged position to the disengaged position, the transmission shaft 51 rotates in one direction, thereby disengaging the latch mechanism 40 and the main body 10. Additionally, when the power transmission member 50 moves from the disengaged position to the engaged position, the transmission shaft 51 rotates in the other direction and allows coupling of the latch mechanism 40 and the main body 10.

The door button 30 can be moved to the pressed position when pressed, thereby moving the power transmission member 50 to the disengaged position. For this purpose, a pushing protrusion 37 may be provided on the door button 30, and a transmission panel 55 may be provided on the power transmission member 50.

The pushing protrusion 37 may be formed to protrude rearward from the pressing surface 31. These pushing protrusions 37 may be connected to the transmission panel 55 by penetrating the rear support surface 19 disposed between the pressing surface 31 and the transmission panel 55.

As an example, the front-to-back length of the pushing protrusion 37 may be set to a length corresponding to the gap between the pressing surface 31 and the transmission panel 55. These pushing protrusions 37 can move the power transmission member 50 to the engaged position by pushing the transmission panel 55 rearward when the door button 30 is moved to the pressed position.

The control panel 15 may further include a support boss 19a. The support boss (19a) protrudes from the rear support surface (19) in the front and rear direction, and a hollow may be formed inside the support boss (19a).

The pushing protrusion 37 may penetrate the support boss 19a through a hollow inside the support boss 19a and be movably coupled to the support boss 19a. That is, the pushing protrusion 37 is movably coupled to the support boss 19a and can penetrate the rear support surface 19.

The support boss 19a can guide the forward and backward movement of the pushing protrusion 37 while stably supporting the pushing protrusion 37. The door button 30 may be provided with a plurality of pushing protrusions 37, and the control panel 15 may also be provided with a plurality of corresponding support bosses 19a.

As a result, the door button 30 can be stably installed on the control panel 15, and the movement of the door button 30 and the pushing protrusion 37 provided thereon can be stably guided.

In particular, when the pushing protrusion 37 pushes the transmission panel 55, the pushing protrusion 37 may shake laterally or vertically due to the load applied to the pushing protrusion 37, and the support boss 19a is It may serve to stably support the pushing protrusion (37) so that shaking of the pushing protrusion (37) is suppressed.

The transmission panel 55 may be connected to the transmission shaft 51 and disposed on the rear side of the pushing projection 37. This transmission panel 55 may be provided to be rotatable in the forward and backward directions about one side connected to the transmission shaft 51.

The front of the transmission panel 55 facing the pushing protrusion 37 may be provided in a flat shape. Additionally, the transmission panel 55 may include a support structure protruding rearward from the front of the transmission panel 55. The transmission shaft 51 is disposed rearward than the front of the transmission panel 55 and may be connected to a support structure protruding toward the rear of the transmission panel 55.

The front of the transmission panel 55, which is formed in a flat shape, provides a contact surface that allows the pushing projection 37 to slide on the transmission panel 55 when the pushing projection 37 pushes the transmission panel 55 rearward. You can. Additionally, the strength of the power transmission member 50 can be further improved by the support structure protruding to the rear of the transmission panel 55.

And, as the transmission shaft 51 is connected to the support structure protruding rearward of the transmission panel 55, the contact point between the transmission panel 55 and the pushing protrusion 37 is located more forward than the transmission shaft 51. You can do it.

Accordingly, the length of the pushing protrusion 37 can be made shorter, thereby lowering the risk of shaking or damage to the pushing protrusion 37, and improving the structural stability of the door button 30 including the pushing protrusion 37. This could be improved further.

Meanwhile, a first elastic member 39 may be provided between the pressing surface 31 of the door button 30 and the rear support surface 19 of the control panel 15 to elastically support the door button 30. The first elastic member 39 can provide elastic force to return the door button 30, which has moved to the pressed position, to its original position. This first elastic member 39 may be provided in the form of a coil spring in which the rear end is supported by the rear support surface 19 and the front end supports the pressing surface 31.

As an example, a plurality of first elastic members 39 are provided, and each first elastic member 39 surrounds the outer peripheral surface of the pushing protrusion 37 and can be fitted on the outside of the pushing protrusion 37. The pushing protrusion 37 can stably support the first elastic member 39 while being fitted inside the first elastic member 39 .

[Overall structure of the locking mechanism]

The locking mechanism 300 may be provided to selectively prevent movement of the door button 30. This locking mechanism 300 may include a rocker 110 and an operation module 120.

The locker 110 corresponds to a structure that substantially prevents the movement of the door button 30. This rocker 110 may be provided so that its posture can be changed between a locking posture and an unlocking posture.

In the locked position, the rocker 110 can prevent the door button 30 from moving to the pressed position. In the unlocked position, the rocker 110 may allow the door button 30 to move to the pressed position.

The rocker 110 may be placed inside the control panel 15. Most of these lockers 110 may be placed in positions away from the door button insertion hole 15a. When the locker 110 is in the locked posture, only a portion of the locker 110 can be inserted into the inner area of the door button insertion hole 15a. In this way, a portion of the rocker 110 inserted into the inner area of the door button insertion hole 15a may block the movement of the door button 30 from the rear of the door button 30.

That is, when the locker 110 is in the locked posture, at least a portion of the locker 110 is placed in the movement path of the door button 30 to prevent the door button 30 from moving. Additionally, when the locker 110 is in the unlocked posture, the locker 110 may deviate from the movement path of the door button 30 and allow the door button 30 to move.

The rocker 110 may include a rotation axis 111, a locking protrusion 113, and a connecting protrusion 115.

The rotation shaft 111 may be provided to be rotatable about a forward-forward axis. Additionally, the locking protrusion 113 may be connected to the rotation shaft 111 so that it can move in conjunction with the rotation of the rotation shaft 111. And the connecting protrusion 115 may extend from the rotation axis 111 to be connected to the manipulation module 120.

As an example, the connecting protrusion 115 may be formed to protrude in a centrifugal direction from the rotation axis 111. These connecting protrusions 115 can move in conjunction with the movement of the operation module 120 and rotate the rotation axis 111.

[Structure of the operation module and its surroundings]

Figure 7 is a cross-sectional view showing the internal structure of the operation module of Figure 6.

Referring to FIGS. 4 to 7 , the manipulation module 120 may be provided to enable a push operation. The operation module 120 that is pressed can change the posture of the rocker 110 from the locked posture to the unlocked posture.

In this embodiment, the operation module 120 is illustrated as being disposed on the side of the control panel 15. According to this, the manipulation module 120 can be installed on the control panel 15 to be movable laterally. This operation module 120 can move laterally during a push operation. For example, the operation module 120 disposed on the left side of the control panel 15 can move to the right when a push operation is performed.

The control panel 15 may be provided with an operation module insertion hole 15b. The operation module insertion hole 15b may be formed to penetrate laterally through the side of the control panel 15. The manipulation module 120 is inserted into the manipulation module insertion hole 15b and may be installed on the side of the control panel 15.

The operation module 120 may include a button housing 121 and an operation button 123.

The button housing 121 may be inserted into the operation module insertion hole 15b and coupled to the side of the control panel 15. The operation module 120 may include a hook member 121a provided in the button housing 121.

The hook member 121a is formed to have a protrusion protruding from the button housing 121 in the centrifugal direction, and may be provided to be elastically deformable in the radial direction. This hook member 121a is provided so that it can be hooked to the inner surface of the control panel 15 from inside the control panel 15. The button housing 121 may be fitted to the side of the control panel 15 through the hook member 121a.

The operation button 123 is inserted into the button housing 121 and may be movably installed in the button housing 121. This operation button 123 may include a pressing surface 123a and an insertion shaft 123b.

The pressing surface 123a forms a surface that allows the user to press and operate the operation button 123. And the fitting shaft 123b is formed to protrude laterally from the pressing surface 123a and can be inserted into the button housing 121. This fitting shaft (123b) may be installed to be movable laterally on the button housing (121).

In addition, the operation button 123 may further include an operation groove 123c. The operating groove 123c is formed on the pressing surface 123a and may be formed in a concave groove shape. This operating groove 123c serves to allow a tool such as a driver used to rotate the operating button 123 to engage with the operating button 123.

The operation module 120 may be provided with a second elastic member 125 that elastically supports the operation button 123. The second elastic member 125 may provide elastic force to return the pressed operation button 123 to its original position. This second elastic member 125 may be provided in the form of a coil spring in which one lateral end is supported by the button housing 121 and the other lateral end supports the operation button 123.

Additionally, the operation button 123 may be placed on the side of the door button 30. That is, the user can change the state of the locking mechanism 300 to the unlocked state by laterally pressing the operation button 123 disposed on the side of the control panel 15 adjacent to the door button 30. .

The posture of the rocker 110 can be changed by the linked action of the operation button 123 and the connecting protrusion 115. The manipulation module 120 can move laterally during a push operation, and the connecting protrusion 115 can move in the rotation direction of the rotation axis 111 in conjunction with the lateral movement of the manipulation module 120.

According to this embodiment, the operation button 123 and the connecting protrusion 115 may be connected in a laterally facing form. In this way, when the operation button 123 connected to the first connection protrusion 115 is pressed, the operation button 123 moves toward the other side.

With the operation button 123 and the connection protrusion 115 facing each other laterally, the operation button 123 moving laterally can press the first connection protrusion 115 in the rotation direction of the rotation shaft 111. there is. Accordingly, the rotation shaft 111 rotates, and the locking protrusion 113 can move to the locked position in conjunction with the rotation of the rotation shaft 111.

[Structure of locking protrusion and its surroundings]

Figure 8 is a cross-sectional view showing the internal structure of the locking mechanism according to an embodiment of the present invention, and Figure 9 is a cross-sectional view taken along the line "IX-IX" in Figure 6. The internal structure of the locking mechanism according to an embodiment of the present invention. It is a cross-sectional perspective view showing, and FIG. 10 is an enlarged view showing a portion of the door button and locking mechanism shown in FIG. 9. Additionally, FIG. 11 is a rear view showing the unlocked state of the locking mechanism shown in FIG. 6, and FIG. 12 is a cross-sectional view showing the internal structure of the locking mechanism shown in FIG. 10.

Referring to FIGS. 6 to 10 , the rocker 110 may include a rotation shaft 111 connected to the connection protrusion 115 and a locking protrusion 113 connected to the rotation shaft 111.

The rotation shaft 111 may be provided to be rotatable about a forward-forward axis. This rotation axis 111 can be rotated by the connecting protrusion 115 moved by the manipulation module 120.

As an example, the rotation axis 111 may be formed in a cylindrical shape extending in the front-back direction. This rotation axis 111 may be rotatably coupled to the front of the control panel 15. Additionally, the rotation axis 111 may be disposed in a position away from the door button insertion hole 15a.

The connecting protrusion 115 connected to the rotation axis 111 may be disposed in a position away from the door button insertion hole 15a. Additionally, the locking protrusion 113 connected to the rotation axis 111 may also be disposed in a position away from the door button insertion hole 15a when the door is in the unlocked position.

The locking protrusion 113 may be connected to the rotation shaft 111 so that it can move in conjunction with the rotation of the rotation shaft 111. In this embodiment, the locking protrusion 113 is illustrated as being formed to protrude in the centrifugal direction from the rotation axis 111.

According to this embodiment, the rotation axis 111 may be disposed in a position away from the door button insertion hole 15a. And the locking protrusion 113 connected to the rotation axis 111 may penetrate the inner surface 18 of the control panel 15 and protrude into the door button insertion hole 15a when it is in the locked position.

For this purpose, a first passage hole 18a may be provided on the inner surface 18 of the control panel 15. The first passage hole 18a may be disposed between the operation module 120 and the door button insertion hole 15a, and may be formed to penetrate laterally through the inner surface 18 of the control panel 15. .

When the rocker 110 is in the locked position, the rocker 110, more specifically, at least a portion of the locking protrusion 113 is connected to the rear support surface 19 and the edge protrusion ( 33) It may protrude into the area in between.

According to this embodiment, the locking protrusion 113 can be moved to the locking and unlocking positions in conjunction with the rotation of the rotation shaft 111. This locking protrusion 113 can prevent the door button 30 from moving from the rear in the locked position. Additionally, the locking protrusion 113 may allow the door button 30 to move in the unlocked position.

As an example, the locking protrusion 113 may interfere with the edge protrusion 33 of the door button 30 and prevent the movement of the door button 30. According to this, when the posture of the locker 110 is the unlocked posture, the locking mechanism 300 may be disposed laterally outside the door button 30.

Referring to FIGS. 10 to 12 , when the locker 110 is in the unlocked posture, the locker 110 may be placed in a position away from the door button insertion hole 15a. The entire locking mechanism 300, including the locker 110, may be disposed in a position away from the door button insertion hole 15a, that is, laterally outside the door button 30.

Additionally, when the posture of the rocker 110 is the locked posture, as shown in FIGS. 6 to 9, at least a portion of the rocker 110 may be disposed in the movement path of the edge projection 33. At this time, at least a portion of the locker 110, that is, at least a portion of the locking protrusion 113, may be disposed on the rear side of the door button 30 and in the movement path of the edge protrusion 33.

In this way, the locking protrusion 113 disposed on the movement path of the border protrusion 33 interferes with the border protrusion 33 at the rear of the border protrusion 33 and can prevent the movement of the door button 30.

Accordingly, when the posture of the locker 110 is in the locked posture, the movement of the door button 30 is blocked by the locking mechanism 300 and cannot be moved to the pressed position, and as a result, the door 20 cannot be opened. You won't be able to do it.

Meanwhile, the locking mechanism 300 may further include a third elastic member 117 that elastically supports the rocker 110. The third elastic member 117 may provide elastic force to return the posture of the rocker 110, which has changed to the unlocked posture, to the locked posture. In this embodiment, the third elastic member 117 is illustrated as including a torsion spring whose one end is supported by the control panel 15 and the other end of which supports the rocker 110.

As an example, one end of the third elastic member 117 may be coupled to the rear support surface 19 and the other end of the third elastic member 117 may be coupled to the locking protrusion 113. This third elastic member 117 can provide an elastic force to return the locking protrusion 113, which has moved to the first unlocking position, to the first locking position.

The third elastic member 117 can return the posture of the rocker 110 to the locked posture by moving the locking protrusion 113 as described above, while also moving the rotation axis 111 and the connecting protrusion 115.

[Structure of rocker fixing member and its surroundings]

Figure 13 is a rear view showing the state of the transmission panel and the rocker fixing member when the locker is in the locked position, Figure 14 is a front view showing the state excluding the rocker fixing member in the drawing shown in Figure 13, and Figure 15 is a This is a cross-sectional view along the line “ⅩV-ⅩⅤ” in Fig. 13. In addition, Figure 16 is a front view showing the state of the transmission panel and the rocker fixing member when the rocker is in the unlocked position, Figure 17 is a cross-sectional view taken along the line "XVII-XVII" of Figure 16, and Figure 18 is shown in Figure 17. This is a cross-sectional view showing the power transmission member moved to the disengaged position.

13 to 15, the rocker 110 may further include a rocker fixing member 130. The rocker fixing member 130 is provided to be movable in conjunction with the movement of the locking protrusion 113. This rocker fixing member 130 can be coupled to the transmission panel 55 when the locking protrusion 113 is in the unlocked position to fix the rocker 110 to the transmission panel 55.

In this embodiment, the rocker fixing member 130 is illustrated as being provided in a form that protrudes rearward from the locking protrusion 113. This rocker fixing member 130 fixes the rocker 110 to the transmission panel 55 when the locking protrusion 113 is in the unlocked position, thereby changing the posture of the rocker 110 from the unlocked posture to the locked posture. It can play a role in maintaining the unlocked position without returning.

The rocker fixing member 130 protrudes rearward from the locking protrusion 113 and may be connected to the power transmission member 50 through the rear support surface 19. For this purpose, a second passage hole 19b may be provided in the rear support surface 19. The second passage hole 19b may be formed to penetrate the rear support surface 19 in the front-to-back direction.

The rocker fixing member 130 may be connected to the power transmission member 50, more specifically, the transmission panel 55 by penetrating the rear support surface 19 through the second passage hole 19b.

According to this embodiment, the rocker fixing member 130 may include protruding bosses 131 and 132, fixing protrusions 133 and 134, and a fourth elastic member 135.

The protruding bosses 131 and 132 may be provided to be connected to the locking protrusion 113. The protruding bosses 131 and 132 may be provided in a form that protrudes rearward from the locking protrusion 113. In this embodiment, the protruding bosses 131 and 132 are illustrated as being formed in a protruding cylindrical shape with a hollow body. These protruding bosses 131 and 132 can accommodate and support the fixing protrusions 133 and 134 and the fourth elastic member 135.

The fixing protrusions 133 and 134 may be movably coupled to the protruding bosses 131 and 132. The fixing protrusions 133 and 134 may be inserted into the interior of the protruding bosses 131 and 132 and may be installed on the protruding bosses 131 and 132 to be movable in the forward and backward directions. Most of the fixing protrusions (133, 134) are accommodated inside the protruding bosses (131, 132), and a portion of the rear side of the fixing protrusions (133, 134) penetrates the protruding bosses (131, 132) and may protrude to the rear of the protruding bosses (131, 132).

The fixing protrusions 133 and 134 may include a protrusion 133 and a flange portion 134. The protrusion 133 may be formed in a circular bar shape extending in the front-back direction. Most of these protrusions 133 are accommodated inside the protruding bosses 131 and 132, and a portion of the rear side of the protrusion 133 may penetrate the protruding bosses 131 and 132 and protrude to the rear of the protruding bosses 131 and 132. The rear end of the protrusion 133 may be formed to be round.

The flange portion 134 may be formed to protrude from the protrusion 133 in the centrifugal direction. This flange portion 134 is accommodated inside the protruding bosses 131 and 132, and can be moved in the forward and backward directions together with the protrusion portion 133.

The protruding bosses 131 and 132 may be divided into a front section 131 and a rear section 132. The front section 131 and the rear section 132 may be arranged in the front-to-back direction, and the inner diameter of the front section 131 may be formed to be longer than the inner diameter of the rear section 132.

For example, the inner diameter of the front section 131 may be set to a length longer than the outer diameter of the flange portion 134. Additionally, the inner diameter of the rear section 132 may be set to the length between the outer diameter of the protrusion 133 and the outer diameter of the flange portion 134. And a step may be formed at the boundary between the front section 131 and the rear section 132.

The flange portion 134 is accommodated inside the front section 131 and can move forward and backward in the front section 131 area. Also, the portion of the protrusion 133 disposed at the rear of the flange portion 134 can move the rear section 132 area in the forward and backward directions.

Accordingly, the movement of the fixing protrusions 133 and 134 toward the rear may be limited to a position where interference between the flange portion 134 and the step occurs. In addition, due to the interference between the flange portion 134 and the step as described above, the effect of preventing the fixing protrusions 133 and 134 from being separated through the rear sides of the protruding bosses 131 and 132 can be provided.

In addition, the rocker fixing member 130 may further include a boss cap 137. The boss cap 137 covers the open front side of the protruding bosses 131 and 132 and can be coupled to the protruding bosses 131 and 132.

The fourth elastic member 135 may provide an elastic force that moves the fixing protrusions 133 and 134 toward the transmission panel 55, that is, backwards. This fourth elastic member 135 may be provided in the form of a coil spring whose front end is supported by the boss cap 137 and whose rear end supports the flange portion 134.

According to this embodiment, the fixing protrusions 133 and 134 may be coupled to the transmission panel 55, and thus the rocker fixing member 130 may be coupled to the transmission panel 55.

For this purpose, the transmission panel 55 is provided with a fixing groove 55a, and the fixing protrusions 133 and 134 are inserted into the fixing groove 55a and can be coupled to the transmission panel 55.

The fixing groove 55a may be formed on the front surface of the transmission panel 55 facing the fixing protrusions 133 and 134. This fixing groove (55a) may be formed concave backward on the front of the transmission panel (55).

In this embodiment, the rear ends of the fixing protrusions 133 and 134 are illustrated as being formed in a substantially hemispherical shape. And the fixing groove 55a may be formed concavely in the transmission panel 55 in a hemispherical shape corresponding to the shape of the rear end of the fixing protrusions 133 and 134.

When the posture of the rocker 110 is in the locked posture, that is, when the locking protrusion 113 is in the locked position, the fixing protrusions 133 and 134 remain in contact with the transmission panel 55 on the outside of the fixing groove 55a. You can.

At this time, the fixing protrusions 133 and 134 may be in contact with the transmission panel 55 in a state that is receded forward rather than in a position where they can maximally protrude rearward. These fixing protrusions 133 and 134 can be maintained in close contact with the transmission panel 55 by the elastic force provided by the fourth elastic member 135.

Referring to FIGS. 16 and 17, when the rocker 110 is in the unlocked position, that is, when the locking protrusion 113 is in the unlocked position, the fixing protrusions 133 and 134 have fixing grooves ( You can move to side 55a). These fixing protrusions (133, 134) can be inserted into the fixing groove (55a) and coupled to the transmission panel (55).

The fixing protrusions 133 and 134 protrude backward by the elastic force provided by the fourth elastic member 135 and can be inserted into the fixing groove 55a. These fixing protrusions 133 and 134 may be in close contact with the transfer panel 55 and coupled to the transfer panel 55 when inserted into the fixing groove 55a. In this way, the rocker fixing member 130 can be coupled to the transmission panel 55 by the fixing protrusions 133 and 134 coupled to the transmission panel 55.

When the rocker fixing member 130 is coupled with the transmission panel 55 in this way, the position of the locking protrusion 113, which has moved to the unlocked position, can be maintained in the unlocked position. According to this, even if the force that moved the locking protrusion 113 to the unlocked position is released, the locking protrusion 113 returns to the locked position while the rocker fixing member 130 remains coupled to the transmission panel 55. won't go

The coupled state of the rocker fixing member 130 and the transmission panel 55 can be maintained even when the force that moved the locking protrusion 113 to the unlocked position is released. Therefore, once the posture of the rocker 110 is changed from the locking posture to the unlocking posture, the posture of the rocker 110 can be maintained in the unlocking posture unless additional manipulation of the locking mechanism 300 is performed.

As described above, when the posture of the locker 110 is maintained in the unlocked posture, the door button 30 can be pressed. In this state, the door button 30 can be moved to the pressed position by a pressing operation.

When the door button 30 is moved to the pressed position, as shown in FIG. 18, the transmission panel 55 is pushed by the pushing protrusion 37 and can move rearward. When the transmission panel 55 moves backward in this way, the coupling between the latch mechanism and the main body can be released, and the coupling between the rocker fixing member 130 and the transmission panel 55 can also be released.

As a result, the door is in a state where it can be opened, and the locking protrusion 113 returns from the unlocked position to the locked position, so that the posture of the locker 110 can return from the unlocked posture to the locked posture. do.

[Action and effect of locking mechanism]

FIG. 19 is a rear perspective view showing the locked state of the locking mechanism according to an embodiment of the present invention, FIG. 20 is a rear perspective view showing the unlocked state of the locking mechanism shown in FIG. 19, and FIG. 21 is a rear perspective view showing the unlocked state of the locking mechanism shown in FIG. 20. This is a rear perspective view showing the unlocked state of the locking mechanism.

Hereinafter, the operation and effects of the cooking appliance according to this embodiment will be described with reference to FIGS. 6 to 21.

Referring to FIGS. 1 to 9, when the door 20 is in a state of closing the cooking chamber 14, the door 20 is fixed to the main body 10 by the latch mechanism 40 (see FIG. 2). You can. At the same time, the door button 30 can be fixed by the locking mechanism 300 to prevent it from being moved to the pressed position by a pressing operation.

In other words, the door 20 with the galley 14 closed is fixed to the main body 10 by the latch mechanism 40, and the door button 30 for opening the door 20 is a locking mechanism 300. ) can be fixed by.

That is, in the cooking appliance of this embodiment, opening of the door 20 can be doubly prevented by the latch mechanism 40 and the locking mechanism 300.

In this state, in a state in which the opening of the door 20 is doubly blocked by the latch mechanism 40 and the locking mechanism 300, the fixed state of the door button 30 by the locking mechanism 300 must be released first. .

That is, in order for the door 20 to open the galley 14, as shown in FIG. 10, the posture of the locking mechanism 300, which blocks the movement of the door button 30 from the rear, changes from the locked posture to the unlocked posture. must be changed to

To this end, as shown in FIG. 11, the user can press the manipulation module 120 and move it laterally. Accordingly, the connecting protrusion 115 connected to the manipulation module 120 can move in the rotation direction of the rotation axis 111 and rotate the rotation axis 111.

Accordingly, the locking protrusion 113 in the locked position moves to the unlocked position in conjunction with the rotation of the rotation shaft 111, and as a result, the rocker 110 deviates from the movement path of the door button 30.

In this way, when the posture of the locker 110 is changed to the unlocked posture, the obstacle that blocks the movement of the door button 30 from the rear disappears from the movement path of the door button 30. As a result, it becomes possible to press the door button 30 and move the door button 30 to the pressed position accordingly.

When the posture of the rocker 110 is changed to the unlocked posture as described above, as shown in FIGS. 16 and 17, the fixing protrusions 133 and 134 are inserted into the fixing groove 55a and coupled to the transmission panel 55. , Accordingly, the rocker fixing member 130 can be combined with the transmission panel 55.

In this way, the rocker fixing member 130 coupled with the transmission panel 55 can maintain the posture of the rocker 110 in an unlocked state. Therefore, when the user presses the operation module 120 once to change the posture of the rocker 110 to the unlock posture, the posture of the rocker 110 changes to the unlock posture even if the user does not continue to press the operation module 120. It can be maintained continuously.

That is, since the user can open the door by pressing the door button 30 again with the same hand that pressed the operation module 120, the door can be opened easily and conveniently with one hand without the need to use both hands.

When the door button 30 is pressed and the door is opened accordingly, the coupling between the latch mechanism and the main body is released, and the coupling between the rocker fixing member 130 and the transmission panel 55 can also be released. there is.

Then, when the force pressing the door button 30 disappears, the door button 30 moves forward again and returns to its original position, and along with this, the locking protrusion 113 also returns from the unlocked position to the locked position. .

In this way, the opening of the door and the return to the posture of the locker 110 can be achieved simultaneously by pressing the door button 30, so that when the door 20 is closed again, the door button 30 can be pressed without additional manipulation. The lock can be automatically reestablished.

As the locker 120 automatically returns to the fixed position as described above, when the door 20 rotates backward again to close the galley 14, the locking mechanism (300) is activated without separate manipulation of the locking mechanism 300. Locking of the door 20 by 300 can be resumed.

That is, in the cooking appliance of this embodiment, the fixed state of the door button 30 by the locking mechanism 300 is released simply by pressing the operation module 120, and the door button 30 is released by the locking mechanism 300 without a separate operation. (30) Lockdown may be resumed.

Just by pulling the locking mechanism 300 in the side direction, the locking state of the locking mechanism 300 on the door button 30 is released, and after the door 20 (see FIG. 2) is opened and closed, the locking mechanism (300) is opened and closed without any separate operation. Locking of the door button 30 by 300 may be resumed.

Accordingly, the cooking appliance of this embodiment not only allows the door 20 to be easily and conveniently restrained to prevent unintentional opening of the cooking chamber 14 (see FIG. 2), but also allows the door button 30 to be pressed without any separate manipulation. ) can provide the effect of allowing the locking to occur automatically and safely.

As described above, the cooking appliance of this embodiment allows the operation to open the door 20 to be performed only when the locked state of the door button 30 is released first, thereby preventing unintentional opening of the cooking chamber 14 during operation of the cooking appliance. This can be effectively prevented from happening.

In addition, the cooking appliance of this embodiment allows the rocker 110 to automatically return to its original position of locking the door button 30 without any separate manipulation, thereby improving the safety of the cooking appliance and improving the convenience of operation accordingly. It can provide an effect that can also be improved.

In addition, the present invention can effectively prevent the door opening and closing operation from becoming unstable due to an abnormally rapidly worn latch mechanism by preventing unnecessary opening and closing from occurring frequently.

Meanwhile, the button housing 121 may be provided with a locking groove 121b, as shown in FIG. 19. The locking groove 121b may be formed concave laterally from the other lateral end of the button housing 121.

Additionally, the operation button 123 may further include a locking protrusion 123d. The locking protrusion 123d may be formed to protrude in the centrifugal direction from the fitting shaft 123b.

The fitting shaft 123b is movably inserted into the hollow of the button housing 121, and the locking protrusion 123d can be inserted into the locking groove 121b. The locking protrusion 123d can move in a straight line along the fitting axis 123b.

When the fitting shaft 123b moves inside the button housing 121, the locking protrusion 123d can move inside the locking groove 121b. This locking protrusion (123d) can be moved to either an insertion position where it is inserted into the locking groove (121b) or a separation position where it is separated from the locking groove (121b).

The operation button 123 can not only move laterally as described above, but can also rotate around the lateral axis. At this time, the operation button 123 may rotate around the radial center of the fitting shaft 123b.

The posture of the operation module 120 including the operation button 123 can be changed to one of the postures that allow the operation button 123 to move in a straight direction and the posture that prevents the operation button 123 from moving in the linear direction. You can.

For this purpose, the button housing 121 may be provided with a stopping end 121c. The stopping end 121c may be disposed at a lateral end of the button housing 121, more specifically, on one lateral side of the button housing 121 facing the pressing surface 123a of the operation button 123. .

The stopping end 121c may form one lateral end of the button housing 121. This stopping end 121c may serve to block the movement of the stopping protrusion 123c from the separation position toward the insertion position. That is, the locking end 121c may serve as a blocking wall that blocks the locking protrusion 123c that breaks away from the locking groove 121b from moving to the other side.

In addition, the button housing 121 may be further provided with a rotation inhibiting protrusion (121d). The rotation inhibiting protrusion 121d may be disposed between the locking groove 121b and the locking end 121c.

The rotation inhibiting protrusion 121d may be provided in the form of a protrusion that protrudes further from the other lateral end of the button housing 121 toward the other side than the stopping end 121c. These rotation inhibiting protrusions (121d) serve to prevent the locking protrusions (123c), which break away from the locking grooves (121b) and are caught on the locking end (121c), from being reinserted into the locking grooves (121b).

That is, the rotation protrusion 121d may serve to block the locking mechanism 300 from changing from the disabled state to the locked state due to unintentional rotation of the operation button 123.

When the locking mechanism 300 is maintained in a deactivated state, that is, the locking protrusion 123b is caught on the locking end 121c, even if the operation button 123 is rotated, the locking protrusion 123b cannot be reinserted into the locking groove (121b) due to the rotation inhibiting protrusion (121d).

In order to change the locking mechanism 300, which is in a disabled state, back to the locked state, the operation button 123 must be pressed and rotated simultaneously.

That is, the operating button 123 must be rotated while the operating button 123 is pressed so that the locking protrusion 123b can pass over the rotation inhibiting protrusion 121d so that the locking protrusion 123b can be inserted into the locking groove 121b. It can be a state.

Additionally, the locking protrusion 123b must be inserted into the locking groove 121b so that the operation button 123 can be returned to its original position and the state of the locking mechanism 300 can be changed back to the locked state.

As shown in FIG. 19, when the operation button 123 is pressed, the fitting shaft 123b moves to the other side, and the locking protrusion 123d moves to the release position, thereby being separated from the locking groove 121b. You can. And when the force pressing the operation button 123 disappears and the door button 30 is pressed, the operation button 123 can be returned to its original position, as described above.

When the operation button 123 is pressed as described above, the operation button 123 can be rotated, as shown in FIG. 20. At this time, the operation button 123 can be rotated using a tool such as a driver, and the operation groove 123c can contribute to the engagement of the tool and the operation button 123.

By rotating the operation button 123, the locking protrusion 123d can be completely separated from the locking groove 121b. At this time, the locking protrusion 123d may be located not only on the outside of the locking groove 121b along the lateral direction, but also on the outside of the locking groove 121b along the rotation direction of the operation button 123.

In this way, the locking protrusion 123d that leaves the locking groove 121b may interfere with the other lateral end of the button housing 121. Due to the interference generated between the locking protrusion 123b and the button housing 121, the operation button 123 remains pressed.

When the operation button 123 is maintained in a pressed state in this way, the locker 110 can maintain the unlocked posture, and the locking mechanism 300 is maintained in a deactivated state in which the locking mechanism 300 is released from being fixed to the door 20. It can be.

That is, the locking mechanism 300 of the present embodiment not only provides a double door fixing function to safely fix the door 20, but also maintains the released state when the double door fixing function is not needed. It may be possible.

As a result, in places where the double door fixing function is not required, such as in a house without children, the double door fixing function can be released. In the cooking appliance of this embodiment, the user can select whether or not to use the double door fixing function depending on the user's needs. It is possible to provide functions that allow this to happen.

[Other embodiments of locking mechanism]

Figure 22 is a front exploded perspective view showing the disassembled state of the control panel and locking mechanism according to another embodiment of the present invention, and Figure 23 is a rear view showing the disassembled state of the control panel and locking mechanism according to another embodiment of the present invention. It is an exploded perspective view, and Figure 24 is an enlarged front view of the door button according to another embodiment of the present invention.

Referring to FIGS. 22 to 24, the door button 230 is installed on the control panel 215 and can be pressed and operated. When the door button 230 is pressed, it moves to the pressed position and acts to separate the latch mechanism 40 from the main body 10, more specifically, the locking structure provided on the main body 10.

In this embodiment, one lateral side of the door button 230 is rotatably coupled to the control panel 215. According to this, the door button 230 can rotate around one side of the lateral direction and move to the pressed position.

As an example, the door button 230 may include a pressing surface 231 and an edge protrusion 233. The pressing surface 231 corresponds to the front of the door button 230 that can be pressed. This pressing surface 231 may form a plane substantially parallel to the front of the control panel 215. The edge protrusion 233 may be formed to extend rearward from the lateral edge of the pressing surface 231.

The door button 230 may further include a hinge portion 232. The hinge portion 232 may be disposed lopsidedly on one side or the other side of the door button 230. The hinge portion 232 may be rotatably coupled to the control panel 215 about a vertical axis.

Due to this coupling between the hinge portion 232 and the control panel 215, the door button 230 can be rotated forward and backward about one side in which the hinge portion 232 is disposed.

The control panel 215 may include a front that forms the front exterior of the control panel 215, and a side that extends rearward from the front edge of the control panel 215. The front of the control panel 215 may form a surface substantially parallel to the door 20. An input unit 216 and a display unit 217 may be placed on the front of the control panel 215.

In addition, the control panel 215 may further include a rear support surface 219. The rear support surface 219 is disposed on the lower side of the control panel 215, and the surface disposed rear than the front of the control panel 215 may be formed on the lower side of the control panel 215.

The locking mechanism 300 is disposed between the pressing surface 231 of the door button 230 and the rear support surface 219, and may be supported by the rear support surface 219.

The control panel 215 may include a side wall 218. The side wall surface 218 of the control panel 215 may be provided in the form of a wall surrounding the edge of the rear support surface 219. This side wall surface 218 may be formed in the form of a wall protruding forward from the edge of the rear support surface 219.

The edge protrusion 233 of the door button 230 forms a surface parallel to the side wall surface 218 of the control panel 215 and may extend rearward from the pressing surface 231. The edge protrusion 233 of the door button 230 may be slidably coupled to the side wall surface 218 of the control panel 215 in the forward and backward directions.

The fitting protrusion 235 may protrude rearward from the pressing surface 231. The door button 230 may be provided with a plurality of fitting protrusions 235. For example, fitting protrusions 235 may be disposed on the upper and lower sides of the door button 230, respectively.

Each fitting protrusion 235 penetrates the rear support surface 219 and may be coupled to the rear support surface 219 to be movable in the front and rear directions. By coupling between the fitting protrusion 235 and the rear support surface 219, the door button 230 can be installed on the control panel 215 to be movable in the forward and backward directions.

A hook projection 235a may be provided at the rear end of each fitting projection 235. The hook protrusion 235a may be formed to protrude in a vertical or lateral direction from the rear end of the fitting protrusion 235. For example, the hook protrusion 235a provided on the fitting protrusion 235 disposed on the upper side of the door button 230 may be formed to protrude upward. And the hook protrusion 235a provided on the fitting protrusion 235 disposed on the lower side of the door button 230 may be formed to protrude downward.

Each hook protrusion 235a may be caught on the rear surface of the rear support surface 219 and restrict the forward movement of the fitting protrusion 235. That is, the door button 230 can be installed to be movable in the forward and backward directions on the control panel 215 by coupling between the fitting protrusion 235 and the rear support surface 219, and the hook protrusion 235a is the rear support surface ( It is possible to prevent the door button 230 from being separated from the control panel 215 by being caught by 219).

The door button 230 can be moved to the pressed position when pressed, thereby moving the power transmission member 50 to the disengaged position. For this purpose, a pushing protrusion 237 may be provided on the door button 230, and a transmission panel 55 may be provided on the power transmission member 50.

Meanwhile, a first elastic member 239 that elastically supports the door button 230 may be provided between the pressing surface 231 of the door button 230 and the rear support surface 219 of the control panel 215. The first elastic member 239 can provide elastic force to return the door button 230, which has moved to the pressed position, to its original position. This first elastic member 239 may be provided in the form of a coil spring in which the rear end is supported by the rear support surface 219 and the front end supports the pressing surface 231.

As an example, a support protrusion 219a may be provided on the rear support surface 219. The support protrusion (219a) protrudes from the rear support surface (219), and the coil spring can be inserted into this support protrusion (219a) and fixed to the rear support surface (219).

That is, the support protrusion 219a supports the first elastic member 239 and is fixed to the rear support surface 219, so that the first elastic member 239 is stably fixed to the control panel 215 and the door button 230 ) so that it can be supported stably.

Meanwhile, the door button 230 may include a plurality of rear protrusions (30a, 30b, and 30c). In this embodiment, the door button 230 is illustrated as being provided with a first rear protrusion (230a), a second rear protrusion (230b), and a third rear protrusion (230c).

The first rear projection 230a, the second rear projection 230b, and the third rear projection 230c may each protrude rearward from the pressing surface 231. These first rear protrusions (230a), second rear protrusions (230b), and third rear protrusions (230c) are moved rearward together with the door button 230 when the door button 230 is moved to the pressed position. You can.

The locking mechanism 300 may be provided to selectively prevent movement of the door button 230. This locking mechanism 300 may include a rocker 310 and an operation module 120.

The locker 310 corresponds to a configuration that substantially prevents the movement of the door button 230. This rocker 310 can be provided so that its posture can be changed between a locking posture and an unlocking posture.

In the locked position, the rocker 310 can prevent the door button 230 from moving to the pressed position. In the unlocked position, the rocker 310 may allow the door button 230 to move to the pressed position.

The rocker 310 may be placed inside the control panel 215. Most of these lockers 310 may be placed within the area covered by the door button 230. The rocker 310 is disposed behind the door button 230 and can be rotated about the front-to-back axis. The posture of the rocker 310 can be changed between the locking posture and the unlocking posture by rotating the rocker 100 as described above.

The rocker 310 may include a rotation axis 311, locking protrusions 312, 113, and 114, and a first connecting protrusion 315.

The rotation shaft 311 may be provided to be rotatable about the front-to-back axis. Additionally, the stopping protrusions 312, 113, and 114 may be connected to the rotation shaft 311 so that they can move in conjunction with the rotation of the rotation shaft 311. And the first connection protrusion 315 may extend from the rotation axis 311 to be connected to the operation button 123.

As an example, the first connection protrusion 315 may be formed to protrude in a centrifugal direction from the rotation axis 311. This first connection protrusion 315 moves in conjunction with the movement of the operation button 123 and can rotate the rotation axis 311.

FIG. 25 is a cross-sectional view taken along the line “X Additionally, FIG. 27 is a front view showing the unlocked state of the locking mechanism shown in FIG. 24, and FIG. 28 is a cross-sectional view taken along the line “ⅩⅩⅧ-ⅩⅩⅧ” of FIG. 27.

22 to 26, the control panel 215 may be provided with an operation button insertion groove 215a. The operation button insertion groove 215a may be formed concave laterally from the side of the control panel 215.

The operation module 120 is inserted into the operation button insertion groove 215a and can be installed to be movable laterally on the control panel 215. The operation button 123 provided in this operation module 120 may pass through the operation button insertion groove 215a laterally and be connected to the first connection protrusion 315.

Additionally, the operation button 123 may be placed on the side of the door button 230. That is, the user can change the state of the locking mechanism 300 to the unlocked state by laterally pressing the operation button 123 disposed on the side of the control panel 215 adjacent to the door button 230. .

Since the structure and operation of the manipulation module 120 are the same or similar to the manipulation modules illustrated in the above-described embodiments, a detailed description of the manipulation module 120 will be omitted here.

The posture of the rocker 310 can be changed by the linked action of the operation button 123 and the first connection protrusion 315. The operation button 123 can move toward the other side when pressed, and the first connection protrusion 315 can move in the rotation direction of the rotation axis 311 in conjunction with the lateral movement of the operation button 123.

According to this embodiment, the operation button 123 and the first connection protrusion 315 may be connected in a laterally facing form. Specifically, the end of the fitting shaft 123b of the operation button 123 and the first connection protrusion 315 may be contacted, and the mastication button 123 and the first connection protrusion 315 may be connected.

In this way, when the operation button 123 connected to the first connection protrusion 315 is pressed, the operation button 123 moves toward the other side.

With the operation button 123 and the first connection protrusion 315 facing each other laterally, the operation button 123, which moves laterally, presses the first connection protrusion 315 in the rotation direction of the rotation shaft 311. can do. Accordingly, the rotation shaft 311 rotates, and the locking protrusions 312, 113, and 114 can move to the locked position in conjunction with the rotation of the rotation shaft 311 (see FIG. 27).

Referring to FIGS. 24 to 28 , the rocker 310 may include a rotating shaft 311 connected to the first connecting protrusion 315 and a locking protrusion 312, 113, and 114 connected to the rotating shaft 311.

The rotation axis 311 may be provided to be rotatable about the front-to-back axis. This rotation axis 311 can be rotated by the first connection protrusion 315 moved by the operation button 123.

As an example, the rotation axis 311 may be formed in a ring shape. This rotation axis 311 may be rotatably coupled to the control panel 215, more specifically, to the rear support surface 219.

As an example, a support shaft 219b may be provided on the rear support surface 219. The support shaft 219b may protrude forward from the rear support surface 219. Preferably, the support shaft 219b may be formed in a cylindrical shape extending in the front-back direction.

The rotation shaft 311 can be rotatably installed between the pressing surface 231 and the rear support surface 219 of the door button 230 by being rotatably fitted to the outer peripheral surface of the support shaft 219b.

The first connection protrusion 315 connected to the rotation axis 311 protrudes in a centrifugal direction from the rotation axis 311, and may protrude approximately in a direction toward the operation button 123.

For example, the rotation shaft 311 and the operation button 123 are laterally spaced apart from each other, and the operation button 123 may be installed on one side of the locking mechanism 300 to be movable laterally. The rotation axis 311 may be disposed above the operation button 123. And the first connection protrusion 315 may protrude from the rotation axis 311 in a direction toward the operation button 123, that is, extending in a direction between the side and downward.

The locking protrusions 312, 113, and 114 may be connected to the rotation shaft 311 so that they can move in conjunction with the rotation of the rotation shaft 311. In this embodiment, the stopping protrusions 312, 113, and 114 are illustrated as being formed to protrude in a centrifugal direction from the rotation axis 311.

The locking mechanism 300 may include a first locking protrusion 312. The first stopping protrusion 312 protrudes from the rotation axis 311 in a centrifugal direction of the rotation axis 311, but may protrude in a direction different from the first connecting protrusion 315. That is, the first stopping protrusion 312 and the first connecting protrusion 315 protrude from the rotation axis 311 in a centrifugal direction of the rotation axis 311, but may each protrude in different directions.

The first stopping protrusion 312 may be connected to the rotation shaft 311 so that it can move in conjunction with the rotation of the rotation shaft 311. This first locking protrusion 312 can move to the first locking position and the first unlocking position in conjunction with the rotation of the rotation shaft 311.

When the locker 310 is in the locked position, the first locking protrusion 312 may prevent the door button 230 from moving in the first locking position. Additionally, when the locker 310 is in the unlocked position, the first locking protrusion 312 may allow the door button 230 to move from the first unlocked position.

In this embodiment, the position where the first stopping protrusion 312 and the first rear protrusion 230a overlap in the front-to-back direction is defined as the first locking position. According to this, when the first locking protrusion 312 is in the first locking position, the first locking protrusion 312 is disposed at the rear of the first rear projection 230a, and the movement path of the first rear projection 230a is It can be placed on top.

In this way, the first locking protrusion 312 located at the first locking position interferes with the first rear protrusion 230a at the rear of the first rear protrusion 230a and can prevent the movement of the door button 230 from the rear. .

Additionally, in this embodiment, the position where the first locking protrusion 312 moves upward away from the first lock position is defined as the first unlock position. According to this, when the first locking protrusion 312 is in the first unlocking position, the first locking protrusion 312 may be placed in a position that deviates from the movement path of the first rear protrusion 230a.

As an example, the first rear protrusion 230a may be disposed at a position biased toward the other side from the lateral center of the door button 230 and at a position biased downward from the vertical center of the door button 230. That is, the first rear protrusion 230a may be disposed adjacent to the lower edge on one side of the door button 230.

The first stopping protrusion 312 may protrude from the rotation axis 311 in a direction toward the first rear protrusion 230a, that is, extending in a direction between the side and downward. Additionally, the first locking protrusion 312 may be provided with an inclined protrusion 314a extending obliquely from an end of the first locking protrusion 312.

In this embodiment, the inclined protrusion 314a is illustrated as being connected to be inclined upward from the end of the first stopping protrusion 312. This inclined protrusion 314a is a portion that directly contacts the first rear protrusion 230a when the first locking protrusion 312 is in the first locking position.

As an example, the first rear protrusion 230a protrudes from the pressing surface 231 and may protrude in a rectangular parallelepiped shape. This first rear protrusion 230a may be formed in a rectangular parallelepiped shape with its bottom and top surfaces parallel to the ground or bottom surface. And the inclined protrusion 314a may be formed in a shape extending in a direction parallel to the bottom and top surfaces of the first rear protrusion 230a.

By forming the first rear protrusion 230a and the inclined protrusion 314a in the above shape, the contact area between the first rear protrusion 230a and the first stopping protrusion 312 can be effectively expanded. Accordingly, when the locking mechanism 300 keeps the door button 230 in a locked state, the first stopping protrusion 312 can stably support the first rear protrusion 230a and prevent the movement of the door button 230. There will be.

The rocker 310 may further include a second stopping protrusion 313. The second locking protrusion 313 protrudes from the rotation axis 311 in a centrifugal direction of the rotation axis 311, and may protrude in a direction different from the first connection protrusion 315 and the first locking protrusion 312. That is, the first connecting protrusion 315, the first locking protrusion 312, and the second locking protrusion 313 protrude from the rotation axis 311 in the centrifugal direction of the rotation axis 311, but may each protrude in different directions. there is.

The second stopping protrusion 313 may be connected to the rotation axis 311 so that it can move in conjunction with the rotation of the rotation axis 311. This second locking protrusion 313 can move to the second locking position and the second unlocking position in conjunction with the rotation of the rotation shaft 311.

When the locker 310 is in the locked position, the second locking protrusion 313 may prevent the door button 230 from moving in the second locking position. Additionally, when the locker 310 is in the unlocked position, the second locking protrusion 313 may allow the door button 230 to move from the second unlocked position.

In this embodiment, the position where the second locking protrusion 313 and the second rear protrusion 230b overlap in the front-to-back direction is defined as the second locking position. According to this, when the second locking protrusion 313 is in the second locking position, the second locking protrusion 313 is disposed at the rear of the second rear protrusion 230b, and the movement path of the second rear protrusion 230b is It can be placed on top.

In this way, the second locking protrusion 313 located at the second locking position interferes with the second rear protrusion 230b at the rear of the second rear protrusion 230b and can prevent the movement of the door button 230 from the rear. .

Additionally, in this embodiment, the position where the second locking protrusion 313 moves upward (or to one side in the lateral direction) out of the second locking position is defined as the second unlocking position. According to this, when the second locking protrusion 313 is in the second unlocking position, the second locking protrusion 313 may be placed in a position that deviates from the movement path of the second rear protrusion 230b.

The first rear protrusion 230a and the second rear protrusion 230b may be arranged to be laterally spaced apart. Additionally, the first rear protrusion 230a and the second rear protrusion 230b may be arranged to be spaced apart in the vertical direction. In this embodiment, the first rear protrusion 230a and the second rear protrusion 230b are illustrated as being spaced apart in the lateral and vertical directions.

For example, the first rear protrusion 230a may be disposed adjacent to the lower edge on one lateral side of the door button 230, and the second rear protrusion 230b may be disposed at the upper center of the door button 230 or on the other lateral side. It can be placed adjacent to the top edge.

Accordingly, the rocker 310 can support the two rear protrusions 30a and 30b at two points spaced apart in the lateral and vertical directions and prevent the movement of the door button 230. That is, the locker 310 can stably block the door button 230 at a plurality of points and effectively maintain the locked state of the door button 230.

In addition, the rocker 310 may further include a third stopping protrusion 314. The third locking protrusion 314 protrudes from the rotation axis 311 and may protrude in a direction different from the first connecting protrusion 315, the first locking protrusion 312, and the second locking protrusion 313. That is, the first connecting protrusion 315, the first locking protrusion 312, the second locking protrusion 313, and the third locking protrusion 314 may each protrude from the rotation axis 311 in different directions.

As an example, the third stopping protrusion 314 may protrude from the first connecting protrusion 315. That is, the third locking protrusion 314 is not directly connected to the rotating shaft 311, but is connected to the rotating shaft 311 through the first connecting protrusion 315 connecting the rotating shaft 311 and the third locking protrusion 314. can be connected to

The third stopping protrusion 314 protrudes from the first connecting protrusion 315, and may protrude in a direction different from the protruding direction of the first connecting protrusion 315. For example, the first connecting protrusion 315 may protrude in the centrifugal direction of the rotation shaft 311, and the third stopping protrusion 314 may protrude in the rotation direction of the rotation shaft 311. This third locking protrusion 314 can move to the third locking position and the third unlocking position in conjunction with the rotation of the rotation shaft 311.

When the locker 310 is in the locked position, the third locking protrusion 314 may prevent the door button 230 from moving in the third locking position. Additionally, when the locker 310 is in the unlocked position, the third locking protrusion 314 may allow the door button 230 to move from the third unlocked position.

In this embodiment, the position where the third locking protrusion 314 and the third rear protrusion 230c overlap in the front-to-back direction is defined as the third locking position. According to this, when the third locking protrusion 314 is in the third locking position, the third locking protrusion 314 is disposed at the rear of the third rear projection 230c, and the movement path of the third rear projection 230c is It can be placed on top.

In this way, the third locking protrusion 314 located at the third locking position interferes with the third rear protrusion 230c at the rear of the third rear protrusion 230c and can prevent the movement of the door button 230 from the rear. .

Additionally, in this embodiment, the position where the third locking protrusion 314 moves upward (or to the other side in the lateral direction) out of the third locking position is defined as the third unlocking position. According to this, when the third locking protrusion 314 is in the third unlocking position, the third locking protrusion 314 may be placed in a position that deviates from the movement path of the third rear protrusion 230c.

At least one of the first rear protrusion 230a and the second rear protrusion 230b may be arranged to be spaced apart from the third rear protrusion 230c in the vertical direction. Additionally, at least one of the first rear protrusion 230a and the second rear protrusion 230b may be arranged to be laterally spaced apart from the third rear protrusion 230c. In this embodiment, the first rear projection 230a, the second rear projection 230b, and the third rear projection 230c are arranged to be spaced apart in the lateral direction, and the second rear projection 230b and the third rear projection are (230c) is illustrated as being spaced apart in the vertical direction.

For example, the first rear protrusion 230a may be disposed adjacent to the lower edge on one lateral side of the door button 230, and the second rear protrusion 230b may be disposed at the upper center of the door button 230 or on the other lateral side. It may be placed adjacent to the upper edge, and the third rear protrusion 230c may be placed adjacent to the lower edge on the other side of the door button 230.

Accordingly, the rocker 310 supports the three rear protrusions 30a, 30b, and 30c at three points spaced apart in the lateral and vertical directions and can prevent the movement of the door button 230. That is, the locker 310 can more stably block the door button 230 at a plurality of points and effectively maintain the locked state of the door button 230.

Meanwhile, the locking mechanism 300 may further include a third elastic member 317 that elastically supports the rocker 310. The third elastic member 317 may provide elastic force to return the posture of the rocker 310, which has changed to the unlocked posture, to the locked posture. In this embodiment, the third elastic member 317 is illustrated as including a torsion spring whose one end is supported by the control panel 215 and the other end which supports the rocker 310.

As an example, one end of the third elastic member 317 may be coupled to the rear support surface 219 and the other end of the third elastic member 317 may be coupled to the first stopping protrusion 312. This third elastic member 317 may provide an elastic force to return the first locking protrusion 312, which has moved to the first unlocking position, to the first locking position.

The third elastic member 317 moves the first locking protrusion 312 as described above, thereby locking the posture of the rocker 310 while also moving the second locking protrusion 313 and the third locking protrusion 314. You can return to your posture.

Meanwhile, a stopper 219c may be provided on the rear support surface 219. The stopper 219c may support the rocker 310 so that the posture of the rocker 310 is maintained in the locked posture. This stopper (219c) protrudes forward from the rear support surface 219, and can support the locking protrusions (312, 113, 114) by protruding on the movement paths of the locking protrusions (312, 113, 114).

As an example, the stopper 219c may be disposed adjacent to the first locking protrusion 312 and support the first locking protrusion 312 from the lower side. This stopper 219c supports the first locking protrusion 312 from the lower side due to the elastic force of the third elastic member 317 and can prevent the first locking protrusion 312 from moving downward.

The position of the first locking protrusion 312 supported by the stopper 219c can be maintained in the first locked position, and thus the posture of the rocker 310 can also be maintained in the locked posture.

Additionally, support ribs 219d may be further provided on the rear support surface 219. The support rib 219d protrudes forward from the rear support surface 219 and can support the rocker 310 from the rear.

According to this embodiment, the stopping protrusions 312, 113, and 114 support the door button 230 from the rear and restrict the movement of the door button 230. Therefore, in order for the locking protrusions 312, 113, and 114 to stably restrict the movement of the door button 230, the locking protrusions 312, 113, and 114 must be stably supported on the rear support surface 219.

However, if the locking protrusions (312, 113, 114) are supported on the rear support surface (219) in such a way that the entirety of the locking protrusions (312, 113, 114) are in contact with the rear support surface (219), excessive friction occurs between the locking protrusions (312, 113, 114) and the rear support surface (219). This may occur. As a result, the locking protrusions (312, 113, 114) may not move properly, and the possibility of wear or damage to the locking protrusions (312, 113, 114) or the rear support surface 219 may increase.

Taking this into consideration, in this embodiment, the locking protrusions (312, 113, 114) are supported with only contact between a portion of the locking protrusions (312, 113, 114) and the support rib (219d).

According to this, the support of the rear support surface 219 for the locking protrusions 312, 113, and 114 is achieved with only contact between the first locking protrusion 312, more specifically, the inclined protrusion 312a and the support rib 219d. It can be done.

The first locking protrusion 312 is a member with the longest length among the locking protrusions 312, 113, and 114. The support rib 219d selectively supports only the first locking protrusion 312 that needs the most support among the locking protrusions 312, 113, and 114, thereby reducing the contact area between the locking protrusions 312, 113, and 114 and the rear support surface 219. This ensures that the supporting protrusions (312, 113, 114) are effectively provided.

In addition, the support rib 219d supports the end of the first locking protrusion 312, that is, the inclined protrusion 312a, which is in direct contact with the first rear protrusion 230a, so that the locking protrusions 312, 113, and 114 are connected to the door button 230. Even when pressed, the locking protrusions (312, 113, 114) can be supported more stably.

The support rib 219d may be formed to protrude from the rear support surface 219 and extend along the movement path of the inclined protrusion 312a. For example, the support rib 219d may be formed along the path along which the first locking protrusion 312 moves from the first locking position to the first unlocking position. The support ribs 219d formed in this way can stably support the locking protrusions 312, 113, and 114 no matter where the first locking protrusions 312 are located.

Figure 29 is a front view showing the state of the transmission panel and the locking mechanism when the locker is in the locked position, and Figure 30 is a front view showing the state of the transmission panel and the locking mechanism when the locker is in the unlocked position. In addition, Figure 31 is a cross-sectional view taken along the line "X

24 and 29, the rocker 310 may further include a rocker fixing member 330. The rocker fixing member 330 is provided to be movable in conjunction with the movement of the stopping protrusions 312, 113, and 114. This rocker fixing member 330 can be coupled to the transmission panel 55 when the locking protrusions 312, 113, and 114 are in the unlocked position to secure the rocker 310 to the transmission panel 55.

In this embodiment, the rocker fixing member 330 is illustrated as being provided in a form that protrudes from the rotation shaft 311 in the centrifugal direction. This rocker fixing member 330 fixes the rocker 310 to the transmission panel 55 when the locking protrusions 312, 113, and 114 are in the unlocked position, thereby changing the posture of the rocker 310 from the unlocked posture to the locked posture. It can play the role of maintaining the unlocked position without returning.

As an example, the rocker fixing member 330 may be connected to the rotation shaft 311 via a second connection protrusion 316 that protrudes in the centrifugal direction from the rotation shaft 311. This rocker fixing member 330 is connected to the end of the second connection protrusion 316 and may protrude rearward from the second connection protrusion 316.

In this way, the rocker fixing member 330 protruding rearward may be connected to the power transmission member 50 through the rear support surface 219. For this purpose, a second passage hole 219e may be provided in the rear support surface 219. The second passage hole 219e may be formed to penetrate the rear support surface 219 in the front-to-back direction.

The rocker fixing member 330 may be connected to the power transmission member 50, more specifically, the transmission panel 55 by penetrating the rear support surface 219 through the second passage hole 219e.

According to this embodiment, the rocker fixing member 330 may include protruding bosses 331 and 132, fixing protrusions 333 and 134, and a fourth elastic member 335.

The protruding bosses 331 and 132 may be provided to be connected to the second connection protrusion 316. The protruding bosses 331 and 132 are connected to the ends of the second connecting protrusion 316 and may be provided in a form that protrudes rearward from the second connecting protrusion 316. In this embodiment, the protruding bosses 331 and 132 are exemplified as being formed in a protruding shape of a hollow cylinder. These protruding bosses 331 and 132 can accommodate and support the fixing protrusions 333 and 134 and the fourth elastic member 335.

The fixing protrusions 333 and 134 may be movably coupled to the protruding bosses 331 and 132. The fixing protrusions 333 and 134 may be inserted into the interior of the protruding bosses 331 and 132 and may be installed on the protruding bosses 331 and 132 to be movable in the forward and backward directions. Most of the fixing protrusions 333 and 134 are accommodated inside the protruding bosses 331 and 132, and a rear portion of the fixing protrusions 333 and 134 may penetrate the protruding bosses 331 and 132 and protrude to the rear of the protruding bosses 331 and 132.

The fixing protrusions 333 and 134 may include a protrusion 333 and a flange portion 334. The protrusion 333 may be formed in a circular bar shape extending in the front-back direction. Most of these protrusions 333 are accommodated inside the protruding bosses 331 and 132, and a portion of the rear side of the protrusion 333 may penetrate the protruding bosses 331 and 132 and protrude to the rear of the protruding bosses 331 and 132. The rear end of the protrusion 333 may be formed to be round.

The flange portion 334 may be formed to protrude from the protrusion 333 in the centrifugal direction. This flange portion 334 is accommodated inside the protruding bosses 331 and 132, and can be moved in the forward and backward directions together with the protrusion 333.

The protruding bosses 331 and 132 can be divided into a front section 331 and a rear section 332. The front section 331 and the rear section 332 may be arranged in the front-to-back direction, and the inner diameter of the front section 331 may be formed to be longer than the inner diameter of the rear section 332.

For example, the inner diameter of the front section 331 may be set to a length longer than the outer diameter of the flange portion 334. Additionally, the inner diameter of the rear section 332 may be set to the length between the outer diameter of the protrusion 333 and the outer diameter of the flange portion 334. And a step may be formed at the boundary between the front section 331 and the rear section 332.

The flange portion 334 is accommodated inside the front section 331 and can move forward and backward in the front section 331 area. Also, the portion of the protrusion 333 disposed at the rear of the flange portion 334 can move the rear section 332 area in the forward and backward directions.

Accordingly, the movement of the fixing protrusions 333 and 134 toward the rear may be limited to a position where interference between the flange portion 334 and the step occurs. In addition, due to the interference between the flange portion 334 and the step as described above, the effect of preventing the fixing protrusions 333 and 134 from being separated through the rear sides of the protruding bosses 331 and 132 can be provided.

In addition, the rocker fixing member 330 may further include a boss cap 337. The boss cap 337 covers the open front side of the protruding bosses 331 and 132 and can be coupled to the protruding bosses 331 and 132.

The fourth elastic member 335 may provide an elastic force to move the fixing protrusions 333 and 134 toward the transmission panel 55, that is, backward. This fourth elastic member 335 may be provided in the form of a coil spring whose front end is supported by the boss cap 337 and whose rear end supports the flange portion 334.

According to this embodiment, the fixing protrusions 333 and 134 can be coupled to the transmission panel 55, and thus the rocker fixing member 330 can be coupled to the transmission panel 55.

For this purpose, the transmission panel 55 is provided with a fixing groove 55a, and the fixing protrusions 333 and 134 are inserted into the fixing groove 55a and can be coupled to the transmission panel 55.

The fixing groove 55a may be formed on the front surface of the transmission panel 55 facing the fixing protrusions 333 and 134. This fixing groove (55a) may be formed concave backward on the front of the transmission panel (55).

In this embodiment, the rear ends of the fixing protrusions 333 and 134 are illustrated as being formed in a substantially hemispherical shape. And the fixing groove 55a may be formed concavely in the transmission panel 55 in a hemispherical shape corresponding to the shape of the rear end of the fixing protrusions 333 and 134.

When the posture of the rocker 310 is in the locking posture, that is, when the locking protrusions 312, 113, and 114 are in the locked position, the fixing protrusions 333 and 134 remain in contact with the transmission panel 55 on the outside of the fixing groove 55a. You can.

At this time, the fixing protrusions 333 and 134 may be in contact with the transmission panel 55 in a state that is receded forward rather than in a position where they can maximally protrude rearward. These fixing protrusions (333, 134) can be maintained in close contact with the transmission panel (55) by the elastic force provided by the fourth elastic member (335).

Referring to FIGS. 30 and 31, when the rocker 310 is in the unlocked position, that is, when the locking protrusions (312, 113, 114) are in the unlocked position, the fixing protrusions (333, 134) have fixing grooves ( You can move to side 55a). These fixing protrusions (333, 134) can be inserted into the fixing groove (55a) and coupled to the transmission panel (55).

The fixing protrusions 333 and 134 protrude backward by the elastic force provided by the fourth elastic member 335 and can be inserted into the fixing groove 55a. These fixing protrusions (333, 134) are in close contact with the transfer panel 55 when inserted into the fixing groove (55a) and can be coupled to the transfer panel (55). In this way, the rocker fixing member 330 can be coupled to the transmission panel 55 by the fixing protrusions 333 and 134 coupled to the transmission panel 55.

When the rocker fixing member 330 is coupled with the transmission panel 55 in this way, the positions of the locking protrusions 312, 113, and 114 that have moved to the unlocked position can be maintained in the unlocked position. According to this, even if the force that moved the locking protrusions (312, 113, 114) to the unlocked position is released, the locking protrusions (312, 113, 114) return to the locked position while the rocker fixing member 330 remains coupled to the transmission panel 55. won't go

The coupled state of the rocker fixing member 330 and the transmission panel 55 can be maintained even when the force that moved the locking protrusions 312, 113, and 114 to the unlocked position is released. Therefore, once the posture of the rocker 310 is changed from the locking posture to the unlocking posture, the posture of the rocker 310 can be maintained in the unlocking posture unless additional manipulation of the locking mechanism 300 is performed.

As described above, when the posture of the locker 310 is maintained in the unlocked posture, the door button 230 can be pressed. In this state, the door button 230 can be moved to the pressed position by a pressing operation.

When the door button 230 is moved to the pressed position, as shown in FIG. 32, the transmission panel 55 is pushed by the pushing protrusion 237 and can move rearward. When the transmission panel 55 moves rearward in this way, the coupling between the latch mechanism and the main body can be released, and the coupling between the rocker fixing member 330 and the transmission panel 55 can also be released.

As a result, the door is in a state where it can be opened, and the locking protrusions (312, 113, 114) return from the unlocked position to the locked position, and thus the posture of the locker 310 can be returned from the unlocked posture to the locked posture. do.

Hereinafter, the operation and effects of the cooking appliance according to this embodiment will be described with reference to FIGS. 22 to 32.

22 to 26, when the door 20 (see FIG. 1) is closing the cooking compartment 14 (see FIG. 2), the door 20 is attached to the latch mechanism 40 (see FIG. 2). It can be fixed to the main body 10 by. In addition, the door button 230 can be fixed by the locking mechanism 300 to prevent it from being moved to the pressed position by a pressing operation.

In other words, the door 20 with the galley 14 closed is fixed to the main body 10 by the latch mechanism 40, and the door button 230 for opening the door 20 is the locking mechanism 300. ) can be fixed by.

That is, in the cooking appliance of this embodiment, opening of the door 20 can be doubly prevented by the latch mechanism 40 and the locking mechanism 300.

In this state, in a state in which the opening of the door 20 is doubly blocked by the latch mechanism 40 and the locking mechanism 300, the fixed state of the door button 230 by the locking mechanism 300 must be released first. .

That is, in order for the door 20 to open the galley 14, as shown in FIG. 28, the posture of the locking mechanism 300, which blocks the movement of the door button 230 from the rear, changes from the locked posture to the unlocked posture. must be changed to

To this end, as shown in FIGS. 27 and 28, the user can press the operation button 123 provided on the side of the control panel 215 to move it to the side. Accordingly, the first connection protrusion 315 connected to the operation button 123 can move in the rotation direction of the rotation axis 311 and rotate the rotation axis 311.

Accordingly, the locking protrusions (312, 113, 114) in the locked position move to the unlocked position in conjunction with the rotation of the rotation shaft 311, and as a result, the locking protrusions (312, 113, 114) deviate from the movement path of the rear projections (30a, 30b, 30c). do.

In this way, when the posture of the locker 310 is changed to the unlocked posture, the obstacle that blocks the movement of the door button 230 from the rear disappears from the movement path of the door button 230. As a result, it becomes possible to press the door button 230 and move the door button 230 to the pressed position accordingly.

When the posture of the rocker 310 is changed to the unlocked posture as described above, as shown in FIGS. 30 and 31, the fixing protrusions 333 and 134 are inserted into the fixing groove 55a and coupled to the transmission panel 55. , Accordingly, the rocker fixing member 330 can be combined with the transmission panel 55.

In this way, the rocker fixing member 330 coupled with the transmission panel 55 can maintain the posture of the rocker 310 in an unlocked state. Therefore, when the user presses the operation button 123 once to change the posture of the rocker 310 to the unlock posture, the posture of the rocker 310 changes to the unlock posture even if the user does not continue to press the operation button 123. It can be maintained continuously.

That is, since the user can open the door by pressing the door button 230 again with the same hand that pressed the operation button 123, the door can be easily and conveniently opened with one hand without the need to use both hands.

When the door button 230 is pressed and the door is opened accordingly, the coupling between the latch mechanism and the main body is released, and the coupling between the rocker fixing member 330 and the transmission panel 55 can also be released. there is.

Then, when the force pressing the door button 230 disappears, the door button 230 moves forward again and returns to its original position, and along with this, the locking protrusions 312, 113, and 114 also return from the unlocked position to the locked position. .

In this way, the opening of the door and the return to the posture of the locker 310 can be achieved simultaneously by pressing the door button 230, so that when the door 20 is closed again, the door button 230 can be pressed without additional manipulation. The lock can be automatically reestablished.

As the locker 120 automatically returns to the fixed position as described above, when the door 20 rotates backward again to close the galley 14, the locking mechanism (300) is activated without separate manipulation of the locking mechanism 300. Locking of the door 20 by 300 can be resumed.

That is, in the cooking appliance of this embodiment, the fixed state of the door button 230 by the locking mechanism 300 is released simply by pressing the operation button 123, and the door button 230 is released by the locking mechanism 300 without a separate operation. (230) Locking may be resumed.

Just by pulling the locking mechanism 300 in the side direction, the locking state of the locking mechanism 300 on the door button 230 is released, and after opening and closing the door 20 (see Figure 2), the locking mechanism ( Locking of the door button 230 by 300 may be resumed.

Accordingly, the cooking appliance of this embodiment not only allows the door 20 to be easily and conveniently restrained to prevent unintentional opening of the cooking chamber 14 (see FIG. 2), but also allows the door button 230 to be pressed without any separate manipulation. ) can provide the effect of allowing the locking to occur automatically and safely.

As described above, the cooking appliance of this embodiment allows the operation to open the door 20 to be performed only when the locked state of the door button 230 is released first, thereby preventing unintentional opening of the cooking chamber 14 during operation of the cooking appliance. This can be effectively prevented from happening.

In addition, the cooking appliance of this embodiment can improve the safety of the cooking appliance by allowing the locker 310 to automatically return to its original position of locking and closing the door button 230 without any separate operation, while also allowing the corresponding operation. It can provide the effect of improving convenience as well.

In addition, the cooking appliance of this embodiment prevents frequent unnecessary opening and closing of the door 20, thereby preventing the opening and closing operation of the door 20 from becoming unstable due to the latch mechanism 40 wearing out abnormally quickly. It can be suppressed effectively.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will recognize that various modifications and other equivalent embodiments are possible therefrom. You will understand. Therefore, the true technical protection scope of the present invention should be determined by the scope of the patent claims below.

10: main body
11: Cavity
13: cabinet
14: galley
15: Control panel
15a: Door button insertion hole
15b: Operation module insertion hole
16: input unit
17: display part
18: medial side
18a: 1st passing hole
19: rear support surface
19a: Support Boss
19b: Second passage hole
20: door
21: door panel
22: open window
25: Door frame
30: door button
31: Pressing surface
33: Border projection
35: insertion protrusion
35a: Hook projection
37: Pushing projection
39: first elastic member
40: Latch mechanism
50: Power transmission member
51: transmission axis
55: Transmission panel
55a: fixed groove
100,300: Locking mechanism
110,310: Rocker
111,311: Rotation axis
113: locking protrusion
115: connecting protrusion
117: Third elastic member
120: operation module
121: Button housing
123: operation button
125: second elastic member
130: Rocker fixing member
131,132: Protruding boss
133,134: Fixed protrusion
135: Fourth elastic member
137: Boss Cap
312: 1st stumbling protrusion
312a: inclined protrusion
313: Second stumbling protrusion
314: Third stumbling protrusion
315: first connection protrusion
316: Second connection protrusion
317: Third elastic member
330: Rocker fixing member
331,332: Protruding boss
333,334: Fixed protrusion
335: Fourth elastic member
337: Boss Cap

Claims (20)

A main body with a cooking compartment formed inside and an opening at the front;
a door disposed in front of the main body and rotatably coupled to the main body to open and close the cooking compartment;
a latch mechanism installed on the door to be selectively coupled to the main body and coupled to the main body to fix the door in a closed position;
a door button that can be pressed and moves to the pressed position to separate the latch mechanism from the main body; and
A locking mechanism that selectively prevents movement of the door button, wherein the locking mechanism includes,
a locker provided so that its posture can be changed between a locking posture that prevents the door button from moving to the pressed position and an unlocking posture that allows the door button to move to the pressed position; and
An operation module that is provided to enable a press operation and changes the posture of the rocker from the lock posture to the unlock posture when pressed,
The operation module includes a button housing coupled to the main body, and an operation button inserted into the button housing and installed on the button housing to enable linear movement and rotation,
When the operation button is pressed, it moves in a straight direction to change the posture of the rocker,
A cooking appliance in which the posture of the operation module changes to one of a posture that allows movement of the operation button in a straight direction and a posture that prevents movement of the operation button in a straight direction when the operation button is rotated.
According to paragraph 1,
The operation button includes a pressing surface that can be pressed, and an insertion shaft that protrudes from the pressing surface and is inserted into the hollow of the button housing,
The insertion shaft is coupled to the inside of the button housing to enable linear movement and rotation, and is connected to the rocker to change the posture of the rocker.
According to paragraph 2,
The button housing is provided with a locking groove that is concavely formed from an end of the button housing in the direction of movement of the operation button,
The operation button further includes a locking protrusion that protrudes from the fitting shaft in a centrifugal direction and is inserted into the locking groove,
The locking protrusion moves in a straight direction along the fitting axis and moves to one of an insertion position where it is inserted into the locking groove and a separation position where it deviates from the locking groove.
According to paragraph 3,
The insertion shaft pushes the rocker to change the posture of the rocker from the locked posture to the unlocked posture,
A cooking appliance in which the locking protrusion moves to the release position when the posture of the rocker changes to the unlocked position.
According to paragraph 3,
The operation module further includes an elastic member that provides elastic force to return the pressed operation button to its original position,
At the end of the button housing, a locking end is provided to block movement of the locking protrusion from the release position toward the insertion position,
A cooking appliance in which the locking groove and the locking end are arranged in the rotation direction of the operation button.
According to clause 5,
The button housing further includes a rotation inhibiting protrusion disposed between the locking groove and the locking end,
The rotation inhibiting protrusion is a cooking appliance in which the rotation inhibiting protrusion is formed to protrude further from an end of the button housing than the commercial stopping end.
According to paragraph 2,
The operation button is a cooking appliance further comprising an operation groove formed in a concave groove shape on the pressing surface.
According to paragraph 1,
The door button includes a pressing surface that can be pressed, and a border protrusion extending rearward from a lateral edge of the pressing surface,
When the posture of the locker is the unlocked posture, the locking mechanism is disposed laterally outside the door button,
A cooking appliance wherein at least a portion of the rocker is disposed in a movement path of the edge protrusion when the rocker is in a locked posture.
In paragraph 1
When the posture of the locker is the locked posture, at least a portion of the locker is disposed in the movement path of the door button,
A cooking appliance in which the locker deviates from the movement path of the door button when the posture of the locker is the unlocked posture.
The method of claim 1, wherein the locker is:
A rotation shaft rotatable about a front-to-back axis;
A device that prevents the door button from moving in the locked position from the rear, allows the door button to move in the unlocked position, and is connected to the rotating shaft so that it can move between the locked and unlocked positions in conjunction with the rotation of the rotating shaft. locking protrusion; and
A cooking appliance comprising a connecting protrusion that extends from the rotation axis to be connected to the operation button, moves in conjunction with movement of the operation button, and rotates the rotation axis.
According to clause 10,
The connecting protrusion protrudes from the rotation axis in a centrifugal direction of the rotation axis,
The operation button is disposed on one side of the connecting protrusion and moves laterally,
The connecting protrusion is a cooking appliance that moves in the rotation direction of the rotation shaft in conjunction with the lateral movement of the operation button.
According to paragraph 1,
Further comprising a control panel disposed in front of the main body and on a side of the door,
The operation module is a cooking device installed on the side of the control panel.
According to clause 12,
On the side of the control panel, an operation module insertion hole is formed to penetrate laterally,
The button housing is inserted into the operation module insertion hole and coupled to the side of the control panel,
The operation button is a cooking device installed in the button housing to be movable in a lateral direction.
According to clause 13,
The operation module includes a hook member having a protrusion protruding from the button housing in a centrifugal direction,
The hook member is a cooking appliance provided to be elastically deformable in the radial direction of the button housing.
The method of claim 1, wherein the locker is:
A rotation shaft rotatable about a front-to-back axis;
It prevents the door button from moving in the first locking position, allows the door button to move from the first unlocking position, and moves to the first locking position and the first unlocking position in conjunction with the rotation of the rotation shaft. a first locking protrusion connected to the rotation axis; and
A cooking appliance comprising: a first connection protrusion extending from the rotation axis so as to be connected to the operation button, moving in conjunction with the movement of the operation button, and rotating the rotation axis.
According to clause 15,
The first connection protrusion protrudes from the rotation axis in a centrifugal direction of the rotation axis,
The operation button is disposed on one side of the first connection protrusion and moves laterally,
The first connection protrusion is a cooking appliance that moves in the rotation direction of the rotation shaft in conjunction with the lateral movement of the operation button.
According to clause 15,
The first locking protrusion and the first connecting protrusion protrude from the rotating shaft in a centrifugal direction of the rotating shaft, but each protrude in different directions,
The locker further includes a second locking protrusion that prevents movement of the door button in the second locking position when the first locking protrusion is in the first locking position,
The second locking protrusion protrudes from the rotation axis in a centrifugal direction of the rotation shaft, and protrudes in a direction different from the protrusion direction of the first locking protrusion.
According to clause 15,
The first stopping protrusion and the first connecting protrusion protrude from the rotation axis in a centrifugal direction of the rotation axis, and each protrude in different directions,
The locker further includes a third locking protrusion that prevents movement of the door button in the third locking position when the first locking protrusion is in the first locking position,
The third stopping protrusion is a cooking appliance that protrudes from the first connecting protrusion in a direction different from the protruding direction of the first connecting protrusion.
According to clause 15,
The first stopping protrusion and the first connecting protrusion protrude from the rotation axis in a centrifugal direction of the rotation axis, and each protrude in different directions,
The locker further includes a second locking protrusion and a third locking protrusion that prevent movement of the door button in the second locking position and the third locking position when the first locking protrusion is in the first locking position,
The door button includes a pressing surface that can be pressed, and first to third rear protrusions that protrude rearward from the pressing surface,
The first locking protrusion is disposed on a moving path of the first rear projection in the first locking position, the second locking protrusion is disposed on a moving path of the second rear projection in the second locking position, and the third locking protrusion A cooking appliance disposed on a movement path of the third rear protrusion in the third locking position.
According to clause 19,
The first rear protrusion is arranged to be laterally spaced apart from the second rear protrusion,
A cooking appliance in which at least one of the first rear protrusion and the second rear protrusion is arranged to be spaced apart from the third rear protrusion in the vertical direction.

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