KR20230139273A - Cooking appliance - Google Patents

Abstract

An invention for a cooking appliance is disclosed. The disclosed invention includes: a locking mechanism that selectively prevents the rearward movement of a door button for opening a door, the locking mechanism including a rocker provided to enable a change in posture and an operation button provided to enable a push operation, the operation The 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.

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.

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 completely 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.

In addition, the present invention provides a cooking appliance with an improved structure so that the number of parts is reduced and operation accuracy is improved.

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.

Preferably, the operation button can be formed integrally with the rocker.

As a result, the number of parts constituting the locking mechanism can be reduced, and operation accuracy through the operation button can be improved.

In addition, in another form of the present invention, a cooking appliance, which is 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 this locking mechanism has a posture It is characterized by comprising a rocker that can be changed, an operation button that can be pressed, and a fixing member that fixes the posture of the rocker.

Here, the fixing member is coupled to the side of the control panel disposed on the side of the door, and may protrude toward the locker through the side of the control panel.

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.

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 is provided to be pressed, rotates about one side when pressed and moves to a pressed position, and separates the latch mechanism from the main body at the pressed position; 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 button that is provided to be pressed and operated, and changes the posture of the rocker from the locking posture to the unlocking posture when pressed.

Additionally, the operation button may be formed integrally with the rocker.

Additionally, as the rocker rotates around the front-to-back axis, the posture of the rocker may change.

In addition, the operation button is preferably disposed on one side in the lateral direction of the operation button, and the rocker is rotated by pressing the rocker from one side in the lateral direction.

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.

Additionally, it is preferable that the connecting protrusion protrudes from the rotation axis in a centrifugal direction of the rotation axis.

In addition, the operation button is preferably disposed on one side of the connecting protrusion and moves laterally.

In addition, it is preferable that the connecting protrusion moves in the rotation direction of the rotation axis in conjunction with the lateral movement of the operation button.

In addition, the operation button is preferably formed integrally with the connecting protrusion.

Additionally, the locking mechanism may further include a fixing member that fixes the posture of the rocker to the unlocked posture.

In addition, the fixing member preferably contacts the connecting protrusion between the rotation axis and the operation button and supports the connecting protrusion on one side in the lateral direction.

Additionally, the present invention may further include a control panel disposed in front of the main body and on a side of the door.

Additionally, the fixing member is preferably coupled to the side of the control panel and protrudes through the side of the control panel toward the connecting protrusion.

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.

In addition, it is preferable that a door button insertion hole is formed to penetrate laterally in the control panel, and that the door button is inserted into the door button insertion hole and installed to be movable laterally on the control panel.

Additionally, the control panel may include a front surface that forms a surface parallel to the door, and an inner surface that extends rearward from the front surface and surrounds the door button insertion hole.

In addition, the edge protrusion preferably forms a surface parallel to the inner surface and extends rearward from the pressing surface.

In addition, the present invention may further include a power transmission member that is provided to be movable between the engaged position and the disengaged position.

In addition, the power transmission member preferably allows coupling of the latch mechanism and the main body at the engaging position, and disengages the latch mechanism and the main body at the disengaging position.

Additionally, the door button is preferably moved to the pressed position to move the power transmission member to the disengaged position.

Additionally, the door button may include a pressing surface that can be pressed, and a pushing protrusion protruding rearward from the pressing surface.

In addition, the power transmission member includes a transmission shaft rotatable about a lateral axis and connected to the latch mechanism, and a transmission shaft connected to the transmission shaft and disposed on the rear side of the pushing protrusion and centered on one side connected to the transmission shaft. It may include a transmission panel that is rotatable in the front and back directions.

In addition, the pushing protrusion is preferably connected to the transmission panel so that the transmission panel can be rotated rearward.

In addition, the rocker includes a rotating shaft rotatable about a forward-backward axis; and a rotating shaft that prevents movement of the door button from the rear in the locking position, allows movement of the door button in the unlocking position, and moves between the locking and unlocking positions in conjunction with the rotation of the rotating shaft. It may include a connecting protrusion.

Additionally, the rocker may further include a rocker fixing member extending from the rotation axis so as to be connected to the transmission panel.

In addition, the locker fixing member preferably moves in conjunction with the movement of the locking protrusion, and is coupled to the transmission panel when the locking protrusion is in the unlocked position to fix the rocker to the transmission panel.

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 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 not only makes it easier to manage and assemble parts and reduce the time and cost of assembly by forming the operation button and the rocker as one piece, but also improves the accuracy of operation through the operation button. It can provide an improvement effect.

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 perspective view of the door button shown in Figure 3.
Figure 7 is a cross-sectional view showing the internal structure of the operation button shown in 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.
Figure 13 is a cross-sectional view showing the internal structure of the locking mechanism shown in Figure 10.
Figure 14 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 15 is a front view showing the state in which the rocker fixing member is excluded from the drawing shown in Figure 14.
FIG. 16 is a cross-sectional view taken along the line “ⅩⅥ-ⅩⅥ” in FIG. 14.
Figure 17 is a front view showing the state of the transmission panel and the locker fixing member when the locker is in the unlocked position.
FIG. 18 is a cross-sectional view taken along the line “XVIII-XVIII” in FIG. 17.
Figure 19 is a cross-sectional view showing the power transmission member shown in Figure 18 moved to the disengaged position.
Figure 20 is a rear view showing a state in which the function of the locking mechanism is released.
FIG. 21 is a cross-sectional view showing a state in which the function of the locking mechanism shown in FIG. 20 is released.

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 to penetrate 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 100. The locking mechanism 100 may serve to fix the door 20 in the closed position together with the latch mechanism 40.

The locking mechanism 100 may be provided to fix the door button 30 so that the door button 30 cannot be manipulated. This locking mechanism 100 may be placed on the control panel 15 and adjacent to the door button 30.

Specifically, the locking mechanism 100 may be disposed on the lower side of the control panel 15 and the rear side of the door button 30. This locking mechanism 100 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 100 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 100. 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 100 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. In addition, 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 perspective view showing the door button shown in Figure 3, and Figure 7 is Figure 6 This is a cross-sectional view showing the internal structure of the operation button shown in .

Referring to FIGS. 3 to 7 , 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, allowing 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 100 may be provided to selectively prevent movement of the door button 30. This locking mechanism 100 may include a rocker 110 and an operation button 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 posture, 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 stopping protrusion 113, and a connecting protrusion 115.

The rotation shaft 111 may be provided to be rotatable about a forward-forward axis. Additionally, the stopping 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 operation button 120.

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

[Structure of operation buttons and their surroundings]

Referring to FIGS. 4 to 7 , the operation button 120 may be provided to enable a press operation. The operation button 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 button 120 is illustrated as being disposed on the side of the control panel 15. According to this, the operation button 120 can be installed on the control panel 15 to be movable laterally. This operation button 120 can move laterally when pressed. For example, the operation button 120 disposed on the left side of the control panel 15 may move to the right when pressed.

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

The operation button 120 may be connected to the rocker 110. More specifically, the operation button 120 may be connected to the connection protrusion 115.

The operation button 120 may be formed to protrude laterally from the connecting protrusion 115. This operation button 120 may be formed to protrude laterally from the end of the connecting protrusion 115, that is, the portion furthest from the rotation axis 111 among the connecting protrusions 115.

As an example, the operation button 120 may be formed integrally with the rocker 110. According to this, the rotation axis 111, the locking protrusion 113, the connecting protrusion 115, and the operation button 120 can be integrally formed as one member.

As the operation button 120 and the rocker 110 are formed as one body, the number of parts constituting the locking mechanism 100 can be reduced. Accordingly, the management and assembly of parts can be facilitated and the time and cost required for assembly can be reduced.

In addition, since the operation button 120 and the rocker 110 are formed as one body as described above, the force applied through the operation button 120 can be transmitted to the rocker 110 with high efficiency, and accordingly, the operation button 120 ) can provide the effect of improving manipulation accuracy.

Additionally, the operation button 120 may be placed on the side of the door button 30. That is, the user can change the state of the locking mechanism 100 to the unlocked state by laterally pressing the operation button 120 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 120 and the connecting protrusion 115. The operation button 120 can move laterally when pressed, and the connecting protrusion 115 can move in the rotation direction of the rotation axis 111 in conjunction with the lateral movement of the operation button 120.

[Structure of the stumbling 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. 13 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 rotating shaft 111 connected to the connecting protrusion 115 and a stopping protrusion 113 connected to the rotating 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 operation button 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 be located away from the door button insertion hole 15a when in the unlocked position.

The stopping 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 stopping protrusion 113 is illustrated as being formed to protrude in a 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 when the locking protrusion 113 connected to the rotation axis 111 is in the locked position, it may penetrate the inner surface 18 of the control panel 15 and protrude into the inside of the door button insertion hole 15a.

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 button 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 blocking 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 blocking 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 100 may be disposed laterally outside the door button 30.

Referring to FIGS. 10 to 13 , when the posture of the locker 110 is the unlocked posture, the locker 110 may be placed in a position away from the door button insertion hole 15a. The entire locking mechanism 100, 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 rocker 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 blocking protrusion 113 disposed on the movement path of the edge protrusion 33 interferes with the edge protrusion 33 at the rear of the edge 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 100 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 100 may further include a second elastic member 117 that elastically supports the rocker 110. The second elastic member 117 may provide elastic force to return the posture of the rocker 110, which has changed from the unlocked posture, to the locked posture. In this embodiment, the second 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 second elastic member 117 may be coupled to the rear support surface 19 and the other end of the second elastic member 117 may be coupled to the stopping protrusion 113. This second 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 second 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 14 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 15 is a front view showing the state excluding the rocker fixing member in the drawing shown in Figure 14, and Figure 16 is a This is a cross-sectional view along the line “ⅩⅥ-ⅩⅥ” in Fig. 14. In addition, Figure 17 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 18 is a cross-sectional view taken along the line "ⅩⅧ-ⅩⅧ" of Figure 17, and Figure 19 is shown in Figure 18 This is a cross-sectional view showing the power transmission member moved to the disengaged position.

14 to 16, 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 stopping 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 the role of 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 third elastic member 135.

The protruding bosses 131 and 132 may be provided to be connected to the stopping protrusion 113. The protruding bosses 131 and 132 may be provided in a form that protrudes rearward from the stopping 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 third 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 can 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 third 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 locking 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 third elastic member 135.

17 and 18, 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 are located along the locking protrusion 113 in a fixing groove ( 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 third 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 100 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. 19, 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. 20 is a rear view showing the unlocked state of the locking mechanism, and FIG. 21 is a cross-sectional view showing the unlocked state of the locking mechanism shown in FIG. 20.

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 100 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 the locking mechanism 100. ) 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 100.

In this state, in a state where the opening of the door 20 is doubly blocked by the latch mechanism 40 and the locking mechanism 100, the fixed state of the door button 30 by the locking mechanism 100 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 100, 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 operation button 120 to move it laterally. Accordingly, the connecting protrusion 115 connected to the operation button 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. This makes it 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. 17 and 18, the fixing protrusions 133 and 134 are inserted into the fixing groove 55a and coupled with 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 button 120 once to change the posture of the locker 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 button 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 button 120, the door can be easily and conveniently opened 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 (100) is activated without separate manipulation of the locking mechanism 100. Locking of the door 20 by 100) can be resumed.

That is, in the cooking appliance of this embodiment, the fixed state of the door button 30 by the locking mechanism 100 is released simply by pressing the operation button 120, and the door button 30 is released by the locking mechanism 100 without a separate operation. (30) Lockdown may be resumed.

Just by pulling the locking mechanism 100 in the side direction, the locking state of the locking mechanism 100 on the door button 30 is released, and after opening and closing the door 20 (see FIG. 2), the locking mechanism ( Locking of the door button 30 by 100) 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, as shown in FIG. 19, a fixing member insertion hole 15c may be provided on the side of the control panel 15. The fixing member insertion hole 15c, like the operation button insertion hole 15b, may be formed to penetrate laterally through the side of the control panel 15.

The fixing member insertion hole 15c may be disposed adjacent to the operation button insertion hole 15b. As an example, the fixing member insertion hole 15c may be disposed on the lower side of the operation button insertion hole 15b. That is, the fixing member insertion hole 15c can be placed closer to the rotation axis 111 than the operation button insertion hole 15b.

In addition, the locking mechanism may further include a fixing member 140. The fixing member 140 can be used to unlock the door 20 using the locking mechanism 100.

As an example, the fixing member 140 may be provided in the form of a fastening member fitted to the side of the control panel 15. For example, the fixing member 140 is inserted into the fixing member insertion hole 15c and may be provided in the form of a screw that penetrates the side of the control panel 15.

This fixing member 140 is inserted into the fixing member insertion hole 15c and is coupled to the side of the control panel 15, while penetrating the side of the control panel 15 and protruding into the inside of the control panel 15. You can. This fixing member 140 may laterally penetrate the side surface of the control panel 15 and protrude laterally toward the connecting protrusion 115.

As an example, the fixing member 140 may be disposed between the rotation axis 111 of the rocker 110 and the operation button 120 in the vertical direction. This fixing member 140 may be in contact with the connecting protrusion 115 between the rotation axis 111 and the operation button 120.

The fixing member 140 installed as described above is in contact with the connecting protrusion 115 when the operation button 120 is pressed and can support the connecting protrusion 115 on one side in the lateral direction. That is, the fixing member 140 may interfere with the connecting protrusion 115 and restrict the movement of the rocker 110 so that the posture of the rocker 110 cannot be changed.

Accordingly, the locker 110 can maintain the unlocked posture, and the locking mechanism 100 can be maintained in a functionally unlocked state in which it is unlocked from the door 20.

That is, the locking mechanism 100 of this embodiment not only provides a double door fixing function that automatically and safely fixes the door 20, but also maintains the disabled state when the double door fixing function is not needed. You can do it as well.

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.

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 button insertion hole
15c: Fixing member 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: Locking mechanism
110: locker
111: rotation axis
113: Obstacle
115: connecting protrusion
117: second elastic member
120: operation button
121: Button housing
123: operation button
130: Rocker fixing member
131,132: Protruding boss
133,134: Fixed protrusion
135: Third elastic member
137: Boss Cap
140: fixing member

Claims (15)

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 is provided to be pressed, rotates about one side when pressed and moves to a pressed position, and separates the latch mechanism from the main body at the pressed position; 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 button is provided that can be pressed and operated, and when pressed, changes the posture of the rocker from the locking posture to the unlocking posture;
The operation button is a cooking appliance formed integrally with the rocker.
According to paragraph 1,
The rocker rotates around the front-to-back axis and the posture of the rocker changes,
The operation button is disposed on one side in a lateral direction of the operation button, and presses the rocker from one side in the lateral direction to rotate the rocker.
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 shaft to be connected to the operation button, moves in conjunction with the movement of the operation button, and rotates the rotation axis.
According to paragraph 3,
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 3,
The operation button is a cooking appliance formed integrally with the connecting protrusion.
According to paragraph 3,
The locking mechanism further includes a fixing member that fixes the rocker in the unlocked posture.
According to clause 6,
The fixing member is in contact with the connecting protrusion between the rotation axis and the operation button and supports the connecting protrusion on one side in a lateral direction.
In clause 7,
Further comprising a control panel disposed in front of the main body and on a side of the door,
The fixing member is coupled to a side of the control panel, and penetrates the side of the control panel to protrude toward the connecting protrusion.
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.
According to clause 9,
Further comprising a control panel disposed in front of the main body and on a side of the door,
In the control panel, a door button insertion hole is formed to penetrate laterally,
The door button is inserted into the door button insertion hole and is installed to be movable laterally on the control panel.
According to clause 10,
The control panel includes a front surface forming a surface parallel to the door, and an inner surface extending rearward from the front surface and surrounding the door button insertion hole,
The edge protrusion forms a surface parallel to the inner surface and extends rearward from the pressing surface.
According to paragraph 1,
It further includes a power transmission member that is movable between the engaged position and the disengaged position,
The power transmission member allows coupling of the latch mechanism and the main body at the engaging position, and releases the coupling of the latch mechanism and the main body at the disengaging position,
The door button is a cooking appliance that moves to the pressed position to move the power transmission member to the disengaged position.
According to clause 12,
The door button includes a pressing surface that can be pressed, and a pushing protrusion protruding rearward from the pressing surface,
The power transmission member includes a transmission shaft rotatable about a lateral axis and connected to the latch mechanism, and a transmission shaft connected to the transmission shaft, disposed on the rear side of the pushing protrusion, and moving forward and backward around one side connected to the transmission shaft. It includes a transmission panel that can be rotated in any direction,
The pushing protrusion is a cooking appliance connected to the delivery panel so that the delivery panel can be rotated rearward.
The method of claim 12, wherein the locker is:
A rotation shaft rotatable about a front-to-back axis; and
A device connected to the rotating shaft to prevent the door button from moving in the locked position from the rear, to allow the door button to move in the unlocked position, and to move between the locking and unlocking positions in conjunction with the rotation of the rotating shaft. A cooking appliance that includes a protruding protrusion.
According to clause 14,
The rocker further includes a rocker fixing member extending from the rotation axis so as to be connected to the transmission panel,
The rocker fixing member moves in conjunction with the movement of the locking protrusion, and is coupled to the delivery panel when the locking protrusion is in the unlocked position to fix the rocker to the delivery panel.

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