KR20240108364A - Refrigerator - Google Patents

Abstract

Embodiments of the present invention relate to a refrigerator, comprising: a cabinet forming a storage space; a drawer door that opens and closes the storage space and has a storage space with an open upper surface; a pull-out rail that connects the drawer door and the storage space and guides the pull-out and pull-out rail of the drawer door; A lifting member provided inside the storage space and supporting food and containers; A lifting assembly is provided on both sides of the drawer door and is coupled to both ends of the lifting member to raise and lower the lifting member in an upward and downward direction when the drawer door is pulled out.

Description

Refrigerator { Refrigerator }

The present invention relates to refrigerators.

In general, a refrigerator is a home appliance that allows food to be stored at low temperatures in an internal storage space shielded by a door. To this end, refrigerators are designed to keep stored food in optimal condition by cooling the inside of the storage space using cold air generated through heat exchange with the refrigerant circulating in the refrigeration cycle.

Recently, refrigerators are gradually becoming larger and more multi-functional in accordance with changes in eating habits and the trend of higher quality products, and refrigerators equipped with various structures and convenience devices are being released to ensure user convenience and efficient use of internal space. .

The storage space of the refrigerator can be opened and closed by a door. Refrigerators can be classified into various types depending on the arrangement of the storage space and the structure of the door that opens and closes the storage space.

Refrigerator doors can be classified into a rotating door that opens and closes the storage space by rotating, and a drawer-type door that opens and closes the storage space by rotating it.

In addition, the drawer-type door is often placed in the lower area of the refrigerator. When the drawer-type door is placed in the lower area of the refrigerator, one must bend down to take out the basket or food stored inside the drawer-type door, and the basket or If the food is heavy, it may be difficult to use the basket or injury may occur.

To solve this problem, various structures that allow drawer-type doors to be raised and lowered are being developed.

Representatively, Republic of Korea Patent Publication No. 10-2008-0101335 discloses a structure in which a storage container that can be raised and lowered is provided on the back of a door that is withdrawn and retracted. However, in this structure, the connection between the door and the storage container is exposed, and the electrical devices and structures for elevating are exposed, which poses a serious problem with safety in use.

In addition, the force for the actual lifting and lowering of the storage container is applied at the front end of the storage container, and when food is stored in the storage container, the eccentric load applied to the storage container not only makes stable lifting and lowering of the storage container difficult, but also makes it difficult to raise and lower the storage container. There is a problem that can cause serious deformation and damage to the storage container.

The purpose of an embodiment of the present invention is to provide a refrigerator in which a portion of the interior of a drawer door that is pulled out in a drawer type is raised and lowered to improve user convenience.

In an embodiment of the present invention, lifting assemblies are provided on both sides of the lifting member on which food is placed inside the drawer door, so that the lifting member can be raised and lowered without tilting the lifting member, thereby improving stability in use and operational reliability. The purpose is to provide a refrigerator that can

The purpose of an embodiment of the present invention is to provide a refrigerator in which safety is improved by placing an electric device for lifting and lowering on the door part of a drawer door, and a mechanism for lifting and lowering the drawer connected to the electric device.

Embodiments of the present invention. The purpose of the present invention is to provide a refrigerator that improves assembly workability and serviceability by enabling selective separation and coupling of the drawer portion where the mechanism is arranged and the door portion where the electric device is provided.

The purpose of an embodiment of the present invention is to provide a refrigerator that enables stable lifting and lowering operations by means of a lifting member that supports food or a basket inside a drawer and is lifted.

The purpose of an embodiment of the present invention is to provide a refrigerator that enables stable lifting and lowering operations by providing a shaft that transmits power for the lifting and lowering of the lifting member and a guide rail that guides the lifting and lowering.

The purpose of an embodiment of the present invention is to provide a refrigerator that can ensure safety of use and improve appearance by shielding the rails and shafts arranged for the lifting and lowering of the lifting member.

The purpose of an embodiment of the present invention is to provide a refrigerator that can maintain a stable coupling state of the lifting member and ensure lifting operation by using a bracket for coupling the lifting member to the rail and shaft.

The purpose of an embodiment of the present invention is to provide a refrigerator with improved appearance and improved safety by having a structure that can shield the lifting assembly and the mounting structure of the lifting assembly disposed on both sides for lifting the lifting member. .

A refrigerator according to an embodiment of the present invention includes a cabinet forming a storage space; a drawer door that opens and closes the storage space and has a storage space with an open upper surface; a pull-out rail that connects the drawer door and the storage space and guides the pull-out and pull-out rail of the drawer door; A lifting member provided inside the storage space and supporting food and containers; A lifting assembly is provided on both sides of the drawer door and is coupled to both ends of the lifting member to raise and lower the lifting member in an upward and downward direction when the drawer door is pulled out.

The drawer door includes a door portion that opens and closes the storage space and forms an appearance exposed to the front; It is coupled to the back of the door part and includes a drawer part forming the storage space, and the lifting assembly includes a door side device provided in the door part and including a lifting motor driven to raise and lower the lifting member; It is possible to include a drawer-side device that is provided in the drawer, is connected to the door-side device, and raises and lowers the lifting member by power provided from the door-side device.

The door part and the drawer part are detachable, and the door side device is provided with a door side connecting member that is exposed to the back of the door part and rotated by the lifting motor, and the drawer side device is exposed to the front side of the drawer part, When the door part and the drawer part are coupled, it is possible to include a drawer side connecting member that is coupled with the door side connecting member and rotates together.

The door side device includes a lifting motor that provides power; It is possible to include a door shaft that is connected to the lifting motor and transmits the power of the lifting motor to the drawer side devices arranged on both sides.

The door shaft is connected to both sides of the lifting motor, and the door shafts on both sides can be rotated simultaneously.

A pair of lifting motors is provided, and the door shaft can be connected to each of the lifting motors.

The drawer door includes a drawer body made of plastic resin and having a mounting portion on which the lifting member is mounted; It is possible to include a plurality of metal plates that are mounted on the inner and outer surfaces of the drawer body to form an exterior and shield the lifting member.

The lifting member includes a pair of lifting shafts rotatably mounted on both sides of the drawer door, extending vertically and having threads formed on the outer peripheral surface; a shaft holder that is mounted through the lifting shaft and has one side connected to a side end of the lifting member, and moves up and down along the lifting shaft when the lifting shaft rotates; It is possible to include; a lifting rail connected to the inner surface of the drawer door and both sides of the lifting member, arranged in parallel with the lifting shaft and extending in multiple stages in the vertical direction.

A recessed mounting portion may be formed on the inner surface of the drawer door to accommodate the lifting shaft and the lifting rail.

The lifting shaft is rotatably supported at its upper and lower ends inside the mounting part, and the lifting rail can extend upward through the upper surface of the mounting part when the lifting member is raised.

Elevating brackets may be mounted on both sides of the elevating member, and the shaft holder and the elevating rail may be fixedly mounted on the other side of the elevating bracket.

A shaft mounting portion on which a drawer side shaft that transmits power for rotation of the shaft is mounted is formed on the outer surface of the drawer door, and the mounting portion and the shaft mounting portion are opened to communicate with each other, and the drawer side shaft and the lifting and lowering part are formed. It is possible for the screws to be geared so that they cross each other.

The lifting bracket is made of a plate-shaped material, and has a holder opening of a shape corresponding to the shaft holder, and the shaft holder can be inserted and installed inside the holder opening.

The lifting rail is mounted to pass through the center of the lifting bracket, and the holder openings can be formed in the same shape on both left and right sides with respect to the lifting rail.

The holder opening is formed to penetrate the holder bracket, and a holder support portion extending toward the lifting shaft and supporting the upper surface of the shaft holder may be formed at one end of the holder opening.

The end of the holder support may be formed with a recess in which the lifting shaft is accommodated.

It is possible to have side covers on both sides of the lifting member that extend upward and are lifted up and down together with the lifting member, and that shield the lifting shaft and the lifting rail.

The top of the side cover is bent outward to form a portion of the upper surface of the drawer door, and it is possible to shield the top of the lifting rail.

The storage space of the drawer door includes a front space where the lifting member is provided; It is composed of a rear space behind the front space, and the withdrawal/extraction rail can have a withdrawal/extraction distance such that the front space is completely exposed to the outside and the rear space is located inside the cabinet.

The rear space may include a drawer cover that is mounted inside the drawer door, divides the front space and the rear space, and simultaneously shields the upper surface of the rear space.

The following effects can be expected from the refrigerator according to the proposed embodiment.

The refrigerator according to an embodiment of the present invention is configured so that a portion of the storage space inside the drawer door can be raised and lowered when the drawer door is pulled out. Therefore, convenience of use can be improved because the user does not have to bend down excessively when storing food inside the drawer door disposed below.

In particular, in order to lift heavy food or a container containing food, the user must exert a lot of force to lift the food or container, but the lifting member inside the drawer door is raised to a convenient position by driving the lifting assembly. This has the advantage of preventing injury to the user and significantly improving convenience of use.

In addition, a lifting member on which food or a container is placed is disposed inside the drawer door, and a lifting assembly is provided on both sides of the drawer door to lift the lifting member, so that both ends of the lifting member are supported. It can be configured to do so. Accordingly, it is possible to prevent the lifting member from being tilted or eccentric, and thus has the advantage of ensuring stable lifting movement and reliability of operation.

In addition, there is an advantage that the loss of storage space can be minimized because the lifting assemblies for power transmission are placed on both walls of the storage space.

In addition, the drawer door may be composed of a door part forming the front of the door and a drawer part forming a storage space, and the door part and the drawer part have a configuration that can be separated and combined with each other. Additionally, the lifting member may be composed of a door-side device provided in the door unit and a drawer-side device provided in the drawer unit, and when the door unit and the drawer unit are combined, the door-side device and the drawer-side device are connected to each other. They are connected to enable power transmission. Accordingly, assembly and service performance of the drawer door can be improved.

In addition, the door side device is equipped with electric devices that require power supply, including a lifting motor, and the drawer side device is placed only on the mechanism side where power is transmitted, thereby ensuring user safety and improving assembly and serviceability. Let's improve it further.

In addition, the lifting member is connected to the lifting member and includes a lifting screw and a screw holder for moving the lifting member up and down, and a lifting rail is arranged parallel to the lifting screw to make the vertical movement of the lifting member more stable. By doing so, a stable lifting operation can be achieved even when heavy food or containers are stored.

In particular, the screw holder and the lifting rail are coupled to one side, and the lifting brackets to which the lifting member is coupled to the other side are arranged on both sides of the lifting member, so that the lifting member can be lifted more stably without tilting. There will be.

In addition, a plurality of plates may be provided on the inner and outer surfaces of the drawer door to shield components mounted on the drawer door and at the same time allow the inner and outer surfaces of the drawer door to have a metallic texture, and the plurality of plates may be provided on the inner and outer surfaces of the drawer door. This can improve the appearance by shielding at least a portion of the drawer door's pull-out rail or lifting assembly.

Additionally, side covers that shield the lifting screw and the lifting rail may be provided on both sides of the lifting member. In particular, during the lifting operation of the lifting member, the mounting structure, including the lifting screw and the lifting rail, can be shielded while being lifted together with the lifting member, thereby improving the appearance of the drawer door and preventing the user's body or food from being exposed. This can prevent it from getting stuck and causing safety problems.

1 is a front view of a refrigerator according to an embodiment of the present invention.
Figure 2 is a perspective view of a drawer door according to an embodiment of the present invention.
Figure 3 is a perspective view of the drawer door container being separated.
Figure 4 is an exploded perspective view of the drawer and door portions of the drawer door viewed from the front.
Figure 5 is an exploded perspective view of the drawer and door portions of the drawer door seen from the rear.
Figure 6 is an exploded perspective view of the door portion.
Figure 7 is an exploded perspective view of the drawer part.
Figure 8 is a perspective view showing the configuration of the lifting assembly built into the drawer door.
Figure 9 is an exploded perspective view showing the coupling structure of the drawer side device of the lifting assembly.
Figure 10 is a cutaway perspective view showing the mounting state of the lifting shaft and lifting rail that constitute the lifting assembly.
Figure 11 is a perspective view showing the mounting structure of the drawer shaft of the drawer side device.
Figure 12 is a cutaway perspective view showing the power transmission structure of the drawer side device.
Figure 13 is a cutaway perspective view of the drawer body with a lifting shaft and rail mounted on it.
Figure 14 is a cutaway perspective view of plates mounted on the drawer body.
Figure 15 is a cutaway perspective view of a lifting bracket mounted on the drawer body.
Figure 16 is a partial perspective view showing the side cover mounted on the drawer body.
Figure 17 is a perspective view of the drawer door in a closed state.
Figure 18 is a perspective view of the drawer door in a fully open state.
Figure 19 is a cross-sectional view of the drawer door in the same state as Figure 18.
Figure 20 is a perspective view of the lifting member of the drawer door in a fully raised state.
Figure 21 is a cross-sectional view of the drawer door in the same state as Figure 20.
Figure 22 is a perspective view showing the structure of an elevating assembly according to another embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail along with the drawings. However, the present invention cannot be said to be limited to the embodiments in which the idea of the present invention is presented, and other inventions that are regressive or other embodiments included within the scope of the present invention can be easily developed by adding, changing, or deleting other components. can be suggested.

1 is a front view of a refrigerator according to an embodiment of the present invention.

As shown in the drawing, the external appearance of the refrigerator 1 may be formed by a cabinet 10 that forms a storage space and a door 2 that shields the open front of the cabinet 10.

The storage space inside the cabinet 10 may be divided into multiple spaces. For example, the space above the cabinet 10 may be divided into a refrigerator compartment, and the space below may be divided into a freezer compartment. Of course, the upper space and the lower space may be divided into independent spaces maintained at different temperatures rather than a refrigerator or freezer, and may be called the upper space and the lower space.

The door 2 may be composed of a rotary door 20 that opens and closes the upper space by rotation, and a drawer door 30 that opens and closes the lower space by pulling in and out in a drawer style. The lower space may be divided into upper and lower sections, and the drawer door 30 may be composed of an upper drawer door 30 and a lower drawer door 30. In addition, the rotating door 20 and the drawer door 30 are made of a metal material to form an exterior that is exposed to the front.

The present invention is described based on a refrigerator in which the rotating door 20 and the drawer door 30 are arranged together, but the present invention is not limited thereto and can be applied to all types of refrigerators equipped with drawer-type doors. It will be applicable.

A display 21 may be provided on one front side of the rotary door 20, and the display 21 may have a liquid crystal display structure or an 88-segment structure. In addition, when the exterior of the door 2 is made of a metal material, the display 21 may be formed with a plurality of fine holes to display information by transmitted light.

Additionally, a control unit 22 may be provided on one side of the rotary door 20 to automatically rotate or withdraw the upper door 2 or the lower door 2. The manipulation unit 22 may be provided integrally with the display 21 and may be implemented in a touch or button manner. The operating unit 22 can input the overall operation of the refrigerator 1, and can operate the drawer door 30 to be withdrawn or pulled in or the lifting member 35 inside the drawer door 30 to be raised or lowered. there is.

An operating unit 301 may also be provided on the drawer door 30. The operating unit 301 may be provided on one side of the drawer door 30 located at the lowest position among the drawer doors 30, and the operating unit 301 may be configured in a touch or button manner. Of course, the manipulation unit 301 may be configured with a sensor that detects the user's proximity or movement, or may be configured to input manipulation through the user's motion or voice.

In addition, as shown in the drawing, a manipulation device 302 is provided at the bottom of the lower drawer door 30 to project an image to the floor, output a virtual switch, and input the manipulation by the user approaching the corresponding area. It may be configured to do so.

Meanwhile, the lower drawer door 30 may be automatically drawn in and out according to manipulation of the operating unit 301. Also, according to the manipulation of the operating unit 301, food or containers provided inside the lower drawer door 30 may be lifted and lowered while the drawer door 30 is pulled out.

Hereinafter, the lower drawer door of the present invention will be described in more detail, and unless otherwise specified, the lower drawer door will be referred to as a drawer door.

Figure 2 is a perspective view of a drawer door according to an embodiment of the present invention. And, Figure 3 is a perspective view with the container of the drawer door separated.

As shown in the drawing, the drawer door 30 includes a door part 31 that opens and closes the storage space, and a drawer part that is coupled to the back of the door part 31 and withdraws and withdraws together with the door part 31. (32) may be included.

The door portion 31 may be exposed to the outside of the cabinet 10 to form the exterior of the refrigerator 1, and the drawer portion 32 may be disposed inside the cabinet 10 to form a storage space. can do. Additionally, the door portion 31 and the drawer portion 32 may be coupled to each other and configured to be pulled in and out together in the forward and backward directions.

The drawer part 32 is always located on the rear side of the door part 31 and can form a space where food or containers for storage are stored. The interior of the drawer unit 32 may form a storage space opened upward, and the exterior of the drawer unit 32 may be formed by a plurality of plates 391, 392, and 395. The plurality of plates 391, 392, and 395 may be made of a metal material such as stainless steel, and are provided not only on the outside but also on the inside of the drawer unit 32 so that the entire drawer unit 32 has a stainless steel or stainless-like texture. can be formed.

When the drawer door 30 is retracted, a machine room 3 in which a compressor and a condenser that constitute a refrigeration cycle may be placed at the rear of the drawer door 30. Accordingly, the rear portion of the drawer portion 32 may be formed in a shape where the top protrudes more than the bottom, and the rear portion of the drawer portion 32 may form an inclined surface 321 .

In addition, both sides of the drawer unit 32 may be provided with pull-out rails 33 that can guide the drawer door 30 in and out. The drawer door 30 can be mounted on the cabinet 10 to be retractable by the retractable and retractable rail 33. The withdrawal/input rail 33 may be shielded by the outer side plate 391 so as not to be exposed to the outside. The withdrawal/input rail 33 may be configured as a rail structure that can be extended in multiple stages.

In addition, the pull-out rail 33 may be provided at the bottom of both sides of the drawer unit 32, and therefore, it may be understood that the pull-out rail 33 is disposed on the lower surface of the drawer unit 32. . Accordingly, the withdrawal/input rail 33 is provided on the lower surface of the drawer unit 32 and may be called an underrail.

A pull-out rack 34 may be provided on the lower surface of the drawer unit 32. The pull-out rack 34 can be placed on both sides, and is linked to the driving of the pull-out motor 14 mounted on the cabinet 10 to enable automatic pull-out and pull-out of the drawer door 30. That is, when the operation unit 22 or 301 inputs an operation, the withdrawal motor 14 is driven so that the drawer door 30 can be withdrawn or withdrawn according to the movement of the withdrawal rack 34. And, at this time, the drawer door 30 can be stably withdrawn and withdrawn by the pull-out rail 33.

Of course, the drawer unit 32 may not be provided with a withdrawal/extraction rack 34, and the user is configured to directly withdraw/extract the drawer door 30 by holding one side of the door unit 31 and pushing or pulling it. It would also be possible.

Meanwhile, the interior of the drawer unit 32 may be divided into a front space (S1) and a rear space (S2). The front space S1 may be disposed with a lifting member 35 that is lifted up and down, and a container 36 that is seated on the lifting member 35 and is lifted up and down together with the lifting member 35 . The container 36 is shown in the form of a basket with an open top, but may have a closed box structure such as a kimchi container, and multiple containers may be stacked or arranged side by side.

In addition, when the drawer door 30 is pulled out, the entire drawer portion 32 cannot be pulled out of the storage space due to a limitation in the pullout distance of the drawer door 30, and at least the front space S1 This is pulled out of the storage space, and all or part of the rear space (S2) is located inside the storage space inside the cabinet.

In this structure, the withdrawal distance of the drawer door 30 may be limited by the withdrawal/extraction rack 34 or the withdrawal/extraction rail 33, and as the withdrawal distance becomes longer, the drawer door 30 in the drawn-out state This is because the moment applied to increases, making it difficult to maintain a stable state, and may cause deformation or damage of the pull-out rail 33 or the pull-out rack 34.

A lifting member 35 is accommodated inside the front space S1, and the lifting member 35 is lifted up and down so that the food or container 36 mounted on the lifting member 35 is raised and lowered together. It can be configured. In addition, components for lifting the lifting member 35 may be located on both left and right sides of the drawer unit 32, and may be shielded by a side cover 353 that is raised and lowered together with the lifting member 35. .

A separate drawer cover 37 may be provided in the rear space (S2). The front space (S1) and the rear space (S2) may be divided by the drawer cover 37. When the drawer cover 37 is installed, the front and upper surfaces of the rear space S2 may be shielded and unused. However, when the drawer cover 37 is removed, access to the rear space S2 becomes possible, and food can be stored in the rear space S2. In order to utilize the rear space (S2), a separate pocket or a container corresponding to the shape of the rear space may be placed in the rear space (S2).

Figure 4 is an exploded perspective view of the drawer and door portions of the drawer door viewed from the front. And, Figure 5 is an exploded perspective view of the drawer part and the door part of the drawer door separated from the rear.

As shown, the door portion 31 and the drawer portion 32 constituting the drawer door 30 may have a structure in which they can be separated from each other. Assembly workability and serviceability can be improved through the separable structure of the door part 31 and the drawer part 32.

The back of the door part 31 and the front of the drawer part 32 may be coupled to each other, and when the door part 31 and the drawer part 32 are combined, the power for lifting the lifting member 35 It can be configured to provide. The lifting assembly 40 for lifting the lifting member 35 may be disposed on the door part 31 and the drawer part 32, respectively, and the door part 31 and the drawer part 32 are combined. and may have a structure that is selectively connected depending on separation.

To this end, the lifting assembly 40 may be composed of a door side device 41 provided in the door part 31 and a drawer side device 42 provided in the drawer part 32. Hereinafter, the ‘door side device’ is also referred to as a ‘driving unit’, and the ‘drawer side device’ is also referred to as a ‘elevating unit.’ The door side device 41 is provided inside the door part 31, and a door connecting member 416, which is a component of the door side device 41, may be exposed on the back of the door part 31. there is. In addition, the drawer side device 42 is provided in the drawer unit 32, and the drawer connection member 471 is exposed at a position corresponding to the door connection member 416 on the front of the drawer unit 32. It can be provided. The door connecting member 416 and the drawer connecting member 471 are formed in shapes corresponding to each other, can be coupled and separated from each other, and can have a structure capable of transmitting power when coupled. When the door part 31 is fixed to the drawer part 32, they are coupled to each other, and when the door part 31 is separated from the drawer part 32, they can be separated together.

That is, protrusions 471a and grooves 416a may be formed on the door connecting member 416 and the drawer connecting member 471, respectively, and the protrusions 471a and grooves 416a may have a polygonal shape or a power shape. They can be formed into a shape that allows for transfer and can be formed to interoperate with each other.

Additionally, a lifting motor 411 that serves as a power source for the lifting assembly 40 may be provided inside the door unit 31 . Additionally, a door cover 315 may be formed above the space where the lifting motor 411 is provided. The door cover 315 is provided on the back of the door part 31 and may be configured to shield the door side device 41 including the lifting motor 411 provided in the door part 31. .

That is, the door side device 41 including the lifting motor 411 and the door connecting member 416 is mounted on the back of the door part 31 and then shielded with the door cover 315 to cover the door part 31. It can be configured to assemble (31). The door cover 315 may be configured to shield the entire rear surface of the door portion 31, or may be formed to shield only the area corresponding to the door side device 41.

In addition, a pair of door frames 316 may be provided on the rear surface of the door 2, and the door part 31 and the drawer part 32 are coupled to each other by the door frame 316. can be maintained.

Hereinafter, the door part 31 and the drawer part 32, which constitute the drawer door 30, will be examined in more detail with reference to the drawings.

Figure 6 is an exploded perspective view of the door portion.

As shown in the drawing, the door portion 31 includes an outer case 311 forming the front and a portion of the peripheral surface, a door liner 314 forming the back, and an upper deco 312 forming the upper and lower surfaces. ) and the lower decor 313. In addition, the inside of the door part 31 may be filled with an insulating material, and a space is provided where the door side device 41, which forms part of the lifting assembly 40, is mounted.

The outer case 311 may be formed by bending a plate-shaped metal material, and an inclined portion 311a may be formed at the bottom of the front surface. An operating device hole 311b may be formed on one side of the inclined portion 311a, and an operating device 302 for outputting a virtual switch and detecting a user's operation may be installed in the operating device hole 311b. . The manipulation device 302 may be composed of a projector light capable of outputting images, a proximity sensor, etc. Additionally, an operating unit bracket 313a may be provided inside the lower decor 313 for mounting the operating device 302 and arranging wires connected to electrical components inside the door unit 31.

The door liner 314 may be injection-molded from a plastic material, and a recessed portion 314a may be formed so that the door-side device 41, including the lifting motor 411, can be mounted. Additionally, a door cover 315 is mounted on the door liner 314 to shield the door side device 41 and the recessed portion 314a mounted on the door portion 31.

A cold air inlet 315b may be formed in the upper part of the door cover 315, and the cold air inlet 315b may be formed above the upper part of the drawer part 32 when the door part 31 and the drawer part 32 are combined. At least some of it may be exposed further upward. Accordingly, some of the cold air supplied to the drawer unit 32 may flow into the inside of the door cover 315 through the cold air inlet 315b. Also, a cold air outlet 315c may be formed in the lower part of the door cover 315. The cold air outlet 315c is opened downward between the door part 31 and the drawer part 32, so that cold air flowing into the inside of the door cover 315 flows to the lower part of the drawer part 32. It can be done as much as possible.

That is, the door cover 315 forms a flow and circulation passage for cold air inside the front of the drawer 32, and the drawer 32 is inserted into the storage space of the cabinet 10. Cold air can be circulated around the drawer unit 32 so that the drawer unit 32 can be cooled more efficiently.

Additionally, a connecting member hole 315a may be formed on the rear surface of the door portion 31. The connecting member hole 315a may be formed on the door cover 315, and the door connecting member 416 may be exposed to the rear of the door portion 31 through the connecting member hole 315a. there is. Meanwhile, the door connecting member 416 may be moved forward or backward according to the user's manipulation, and when the door part 31 and the drawer part 32 are separated by the user's manipulation, the door connection member 416 The member 416 and the drawer connecting member 471 can be separated.

The door unit 31 may be equipped with the door side device 41. The door side device 41 is a component disposed on the door portion 31 of the lifting assembly 40 and includes the lifting motor 411 provided inside the case and a motor assembly 412 composed of gears. , a door-side shaft 413 rotated by the motor assembly 412, a bevel gear-shaped door-side first gear 414 provided on both ends of the door-side shaft 413, and the door-side first gear ( 414) and a door-side second gear 415 of a bevel gear shape coupled to the door connecting member 416. Each configuration of the door side device 41 will be discussed in more detail below.

The motor assembly 412 may be independently configured as a motor assembly consisting of a single motor and gears if it can provide sufficient power for lifting the lifting member 35. However, if sufficient torque cannot be provided, the motor assembly 412 may be configured alone. As shown in Figure 6, a pair of motor assemblies 412 may be arranged in parallel, and a pair of door shafts 413 may be coupled to each motor assembly. Additionally, the motor assembly 412 may be arranged in a horizontal manner with the front of the door 31 to minimize the caved-in space inside the door 31.

Meanwhile, a pair of door frames 316 may be provided on both left and right sides of the rear surface of the door unit 31. The door frame 316 connects the door portion 31 and the drawer portion 32, and may be configured to maintain the drawer portion 32 coupled to the door portion 31.

In detail, the door frame 316 may be composed of a door frame part 316a fixed to the back of the door part 31 and a drawer frame part 316b fixed to the bottom of the drawer part 32, The door frame portion 316a and the drawer frame portion 316b may have a structure that intersects each other perpendicularly. Additionally, a frame reinforcement portion 316c may be further formed to prevent deformation of the door frame 316 by connecting the door frame portion 316a and the drawer frame portion 316b.

The door frame part 316a may be mounted on the back of the door part 31, and may be provided inside the door part 31 so that the drawer frame part 316b penetrates the back of the door part 31. It may be configured to be extended. Additionally, the drawer frame portion 316b may extend rearward from the bottom of the door frame portion 316a and support the drawer portion 32 from below.

Additionally, a gasket 317 may be provided around the rear surface of the door liner 314 to make the storage space airtight by contacting the front end of the cabinet 10.

Figure 7 is an exploded perspective view of the drawer part.

As shown in the drawing, the drawer unit 32 includes a drawer body 38 that forms the overall shape of the drawer unit 32, and is provided on the drawer body 38 and constitutes the lifting assembly 40. It may include a drawer side device 42 and a plurality of plates 391, 392, and 395 that form the inner exterior of the drawer unit 32.

Looking at this in more detail, the drawer body 38 may be injection-molded from a plastic material and forms the overall shape of the drawer portion 32. The drawer body 38 has a basket shape with an open upper surface, forming a storage space for food therein. An inclined surface 321 may be formed on the rear of the drawer body 38, thereby preventing interference with the machine room 3.

The door frame 316 may be mounted on both sides of the drawer unit 32. The door frame 316 may be coupled to both sides of the bottom of the drawer 32 or to the lower portions of both left and right sides, and the drawer 32 and the door 31 can be integrally combined to allow them to be pulled out and taken out together. .

Pull-out racks 34 may be provided on both left and right sides of the lower surface of the drawer unit 32. The drawer unit 32 can be withdrawn and withdrawn in the front and rear directions by the withdrawal and withdrawal rack 34. In detail, the drawer unit 32 is at least partially located inside the storage space when mounted on the cabinet 10. Additionally, the withdrawal/input rack 34 may be coupled to the pinion gear 141 provided on the bottom of the storage space. Therefore, when the pull-out motor 14 is driven, the pinion gear 141 rotates so that the pull-out rack 34 can be moved and the drawer door 30 can be pulled out and put in.

Of course, the drawer door 30 is not automatically withdrawn and withdrawn, and the user may push or pull the drawer door 30 to withdraw and withdraw. In this case, the withdrawal and retraction rack 34 is omitted, and the withdrawal and retraction rail Withdrawals and deposits may only be guided according to (33).

A plurality of reinforcing ribs 381 may be formed on both left and right sides of the drawer body 38 extending in the horizontal and vertical directions. The reinforcing ribs 381 prevent the drawer body 38 from being deformed by the load applied to the left and right sides of the drawer body.

In particular, the main components for lifting the lifting member 35, that is, the lifting shaft 43 and the lifting rail 44, may be provided on both sides of the drawer main body 38, and thus the lifting member 35 and When the food or container mounted on the lifting member 35 is lifted or lowered, the load may be concentrated on both sides of the drawer main body 38. The reinforcing ribs 381 can maintain the shape of the drawer body 38 and the drawer portion 32 even under such concentrated load.

Meanwhile, rail mounting portions 382 may be formed on the lower sides of both sides of the drawer body 38, on which the drawer rails 33 are mounted to guide the drawer body 38 in and out. The rail mounting portion 382 extends from the front end to the rear end, and a space may be formed therein to accommodate the pull-out rail 33. The withdrawal/input rail 33 is a rail extending in multiple stages, one end of which can be fixed to the storage space inside the cabinet 10, and the other end of which is fixed to the rail mounting portion 382 to secure the drawer door 30. It can ensure that withdrawals and deposits can be made more stably.

Meanwhile, mounting portions 383 on which the lifting shaft 43 and the lifting rail 44, which are the main components of the drawer side device 42, are mounted may be recessed inside both sides of the drawer body 38. The mounting portion 383 may be recessed inward and may include a shaft groove 383a in which the lifting shaft 43 is placed and a rail groove 383b in which the lifting rail 44 is placed. The lifting shaft 43 and the lifting rail 44 are located further outside the inner surface of the drawer body 38 when mounted on the mounting part 383, so that they do not interfere with the lifting member 35. do.

The lower surface of the mounting portion 383 is formed to support the lower end of the lifting shaft 43. In addition, the upper surface of the mounting part 383 may be opened so that when the lifting rail 44 extends, the lifting rail 44 can protrude through the opened upper surface of the mounting part 383.

Additionally, a mounting bracket 46 may be provided on the opened upper surface of the mounting portion 383. The mounting bracket 46 is made of a metal material and can support the upper end of the lifting shaft 43 and at the same time allow the lifting rail 44 to pass through. That is, the open upper surface of the mounting part 383 is shielded by the mounting part bracket 46, and the lifting shaft 43 can be mounted inside the mounting part 383 in a rotatable state.

The lifting shaft 43 and the lifting rail 44 may be coupled to the lifting bracket 45, and the lifting bracket 45 can be moved up and down by rotation of the lifting shaft 43. The lifting shaft 43 and the lifting rail 44 may be coupled to the lifting bracket 45 while mounted on the mounting part 383. In addition, the lifting bracket 45 may be connected to the lifting plate 351 constituting the lifting member 35, and the lifting member 35 may be lifted as the lifting bracket 45 moves up and down. .

Meanwhile, shaft mounting portions 384 may be formed on both outer surfaces of the drawer body 38. The shaft mounting portion 384 provides a space in which the drawer side shaft 47 is placed, and the drawer side shaft 47 is rotatably mounted.

The shaft mounting portion 384 may be opened outward from the top of both sides of the drawer body 38, and may be formed to communicate with the mounting portion 383, or more specifically, the shaft groove 383a. Accordingly, the drawer side shaft 47 mounted on the shaft mounting portion 384 is combined with the lifting shaft 43 mounted on the mounting portion 383 to enable power transmission.

The drawer body 38 may be provided with a drawer side device 42 that forms part of the lifting assembly 40. And, of the drawer side device 42, the lifting member 35, the lifting shaft 43, and the lifting rail 44 are disposed on the inner surface of the drawer main body 38, and the drawer side shaft 47 is It may be placed outside the drawer body 38. The specific structure of the drawer side device 42 will be examined in more detail below.

In addition, the drawer body 38 may be provided with a plurality of plates 391, 392, and 395 that are made of a plate-shaped metal material such as stainless steel and form at least a portion of the interior and exterior of the drawer body.

In detail, outer side plates 391 may be provided on both left and right sides outside the drawer body 38. The outer side plate 391 is mounted on both left and right sides of the drawer body 38 to form the appearance of both sides. In particular, the drawer side shaft 47 and the withdrawal/exit rail are mounted on both sides of the drawer body 38. Configurations such as (33) can be prevented from being exposed to the outside.

Inner side plates 392 may be provided on both left and right sides inside the drawer body 38. The inner side plate 392 is mounted on both left and right sides of the drawer body 38 and can form both left and right sides of the inside. Additionally, an upper bent portion 392a may be formed at the upper end of the inner side plate 392, and the upper bent portion 392a may shield the upper ends of both sides of the drawer body 38. In addition, the extended end of the upper bent portion 392a may be in contact with the upper end of the outer side plate 391, and therefore, the drawer body ( 38), the inner, outer, and upper surfaces of both left and right sides can be shielded.

Additionally, a side opening 394 of a size corresponding to that of the mounting portion 383 may be formed in the inner side plate 392. Accordingly, in a state in which the inner side plate 392 is mounted, the lifting shaft 43 and the lifting rail 44 mounted on the mounting part 383 may be exposed to the inside of the drawer body 38, and the lifting and lowering rail 44 may be exposed to the inside of the drawer body 38. It is possible to prevent interference when combining with the member 35 and lifting the lifting member 35.

In addition, a rail entrance and exit portion 394a through which the elevating rail 44 enters and exits may be further formed at the upper bent portion 392a that contacts the upper end of the side opening 394. The rail access portion 394a may be formed in a shape corresponding to the cross-sectional shape of the lifting rail 44 at the upper bent portion 392a, and when the lifting member 35 rises, the lifting rail 44 This can come in and out.

An inner plate 395 may be provided on the inner front, lower, and rear surfaces of the drawer body 38. The inner plate 395 may be composed of a front portion 395a, a lower surface portion 395b, and a rear portion 395c that have sizes and shapes corresponding to the inner front, lower, and rear surfaces of the drawer body 38. The inner plate may be formed by bending a plate-shaped stainless steel material to form the inner surface of the remaining portion excluding the left and right sides of the drawer body 38. Additionally, both left and right ends of the inner plate 395 may be formed to contact the inner side plate 392. Of course, the front part 395a, the lower surface part 395b, and the rear part 395c, which constitute the inner plate 395, may be configured separately and configured to be combined with or in contact with each other.

The entire inner surface of the drawer body 38 may be formed by the inner side plate 392 and the inner plate 395, and the inner surface of the drawer body 38 may provide a metallic texture. Therefore, the storage space inside the drawer unit 32 may have an overall metal texture, and not only can the food stored inside be stored cold in a more even area as a whole, but also provide excellent cooling and storage performance visually to the user. can be provided.

In addition, outwardly bent upper bent portions 395d and 395e may be further formed at the upper ends of the front portion 395a and the rear portion 395c of the inner plate 395, respectively, and the front end of the drawer body 38 and The upper surface of the rear end can be shielded. In addition, the rear portion 395c is formed to have a shape corresponding to the inclined surface 321 of the rear of the drawer body 38 and can be in close contact with the inclined surface 321 of the drawer main body 38.

In addition, a lower surface opening 395f may be further formed at the rear end of the lower surface part 395b adjacent to the lower end of the rear part 395c. The lower surface opening 395f may be formed to open at a position corresponding to the cover support portion 388 protruding from the lower surface of the drawer body. Accordingly, the cover support part 388 can be exposed through the lower opening 395f, and the drawer cover 37 can be mounted by coupling the lower end of the drawer cover 37 to the cover support part 388. make it possible

The drawer cover 37 has a cover front part 371 that divides the interior of the drawer body 38 into a front space (S1) and a rear space (S2), and is bent at the top of the cover front part 371. , It may include a cover upper surface portion 372 that shields the upper surface of the rear space (S2).

That is, when the drawer cover 37 is installed, only the front space S1 where the lifting member 35 is disposed may be exposed inside the drawer body 38, and the rear space S2 may be exposed to the inside of the drawer body 38. It can be shielded by the cover 37.

The lower end of the cover front part 371 may be coupled to the cover support part 388. In addition, a plurality of cover restraint parts 373 may be formed along both left and right ends of the drawer cover 37. The cover restraint portion 373 may be formed at a position corresponding to a plurality of cover restraint protrusions 385 protruding inward on the inner surface of the drawer body 38. The cover restraining protrusion 385 can protrude through the protruding hole 392b formed in the inner side plate 392.

Additionally, the cover restraint portion 373 may be press-fitted into the cover restraint protrusion 385, and when the drawer cover 37 is mounted, the cover restraint protrusion 385 and the cover restraint portion 373 are coupled to each other. This allows the drawer cover 37 to be fixed.

Meanwhile, a lifting member 35 may be provided inside the drawer body 38. The lifting member 35 may be included as a component of the lifting assembly 40 . The lifting member 35 may be formed in a size that can be accommodated inside the front space S1 on the bottom surface of the drawer main body 38.

In addition, the lifting member 35 may be formed in a rectangular plate shape, and includes a lifting plate 351 that substantially supports food or a container, and a lifting plate 351 that supports the lifting plate 351 from below and reinforces its strength. It may include a frame 352 and a lifting bracket 45 that extends upward from both sides of the lifting plate 351 and shields the lifting shaft 43 and the lifting rail 44. The lifting member 35 is a part where the food or container 36 is substantially seated and supported and may also be called a seating member.

The lifting plate 351 is formed in a rectangular plate shape, and a peripheral portion 351a that protrudes upward along the circumference may be formed. The peripheral portion 351a has an open lower surface to accommodate the lifting frame 352 therein. Additionally, a lifting bracket mounting portion 351b on which the lifting bracket 45 can be mounted may be formed on both left and right sides of the peripheral portion 351a. Additionally, the lifting bracket mounting portion 351b may be cut to expose the side of the lifting frame 352. Lifting brackets 45 can be mounted on both sides of the lifting frame 352 through the lifting bracket mounting portion 351b.

The lifting bracket 45 may be formed in a plate shape, and is formed to have a size that is at least equal to or larger than the size of the mounting part 383, and includes the mounting part 383 and the lifting shaft 43 mounted on the mounting part 383. And the lifting rail 44 is prevented from being exposed to the storage space inside the drawer unit 32. Additionally, the lifting bracket 45 may extend more upward than the upper side of the drawer body 38, and the extended upper end of the lifting bracket 45 may be bent outward. Therefore, the side of the mounting part 383 as well as the opened upper surface of the mounting part 383 and the mounting bracket 46 mounted on the top of the drawer body 38 can be shielded from above by the lifting bracket 45. You can.

The lifting bracket 45 may be configured so that one side is fixed to the lifting frame 352 and the other side is coupled to the lifting rail 44 and the lifting shaft 43. Therefore, when the lifting shaft 43 and the lifting rail 44 are operated, the lifting frame 352 connected by the lifting bracket 45, that is, the lifting member 35, is connected with the lifting bracket 45. It can be moved up and down.

A side cover 353 may be further provided on the inner surface of the lifting bracket 45. The side cover 353 may be formed in a size corresponding to or larger than the lifting bracket 45, and may be made of the same metal material or a material with a metal texture as the inner side plate 392.

The side cover 353 may be formed to shield the lifting bracket 45 and the mounting portion 383 when mounted. Accordingly, the interior appearance of the drawer body 38 can be configured to be more luxurious and have a sense of unity. Additionally, the top of the side cover 353 may be bent outward to shield the bent portion of the top of the lifting bracket 45. Additionally, the outer circumference of the side cover 353 may be bent to surround and secure the lifting bracket 45.

Meanwhile, the drawer side device 42 disposed on the drawer body 38 of the lifting assembly 40 may be mounted on the drawer body 38. The drawer side device 42 is disposed on both sides of the lifting member 35 and the lifting member 35, and includes the lifting shaft 43 and the lifting rail 44 mounted inside the mounting part 383. , the lifting bracket 45, and a drawer side shaft 47.

Hereinafter, the structure of the lifting assembly 40 will be examined in more detail with reference to the drawings.

Figure 8 is a perspective view showing the configuration of the lifting assembly built into the drawer door.

As shown in the drawing, the lifting assembly 40 may be entirely composed of a door side device 41 disposed on the door portion 31 and a drawer side device 42 disposed on the drawer portion 32. there is. In addition, the door side device 41 and the drawer side device 42 are coupled to each other by combining the door part 31 and the drawer part 32, and power transmission is possible.

As described above, the door-side device 41 includes a motor assembly 412 including a lifting motor 411, a door-side shaft 413 coupled to the motor assembly 412 and rotated, and the door. A door-side first gear 414 provided at both ends of the side shaft 413, a door-side second gear 415 engaged with the door-side first gear 414, and a door-side second gear 415 It may include a combined door connection member 416.

In FIG. 8 , it is explained as an example that one motor assembly 412 is provided. However, if it is determined that a larger torque is needed to raise and lower the lifting member 35, a pair of motor assemblies 412 are used as shown in FIG. 6 . ) may be configured to be provided. In FIG. 8, the motor assembly 412 is arranged perpendicular to the front of the door part 31, but is arranged horizontally with the door part 31 to reduce the loss of insulation space of the door part 31. It can also be minimized.

The drawer side device 42 is disposed on both sides of the lifting member 35 provided inside the drawer main body 38 and the lifting member 35 to raise and lower the lifting member 35. A lifting shaft 43, a lifting rail 44, the lifting frame 352, the lifting bracket 45, and the drawer body 38 are provided on the outside of the drawer body 38 to use the rotational force of the door device 41 to lift the door. It may include a drawer side shaft 47 for delivering to the shaft 43.

When driving the motor assembly 412, the rotational force of the door shaft 413 can be transmitted to the drawer device 42 by the door connecting member 416 and the drawer connecting member 471 that are coupled to each other. there is. As the drawer connecting member 471 rotates, the drawer side shaft 47 rotates, and the lifting shaft 43 coupled to the drawer side shaft 47 rotates. As the lifting shaft 43 rotates, the shaft holder 48 coupled to the lifting shaft 43 may move up and down.

The shaft holder 48 and the lifting rail 44 are coupled to the lifting bracket 45 to raise and lower the lifting bracket 45, and the lifting brackets 45 on both left and right sides are connected to the lifting frame 352. It is possible to elevate the lifting member 35 in a coupled state.

That is, the rotational force of the motor assembly 412 is transmitted to the drawer side shaft 47 through the door side shaft 413, and rotates the lifting shaft 43, and the shaft holder 48 and the lifting shaft 412 rotate. The rail 44 guides the lifting member 35 so that it can move in the vertical direction.

Hereinafter, the detailed structure of each component of the drawer side device 42 will be examined in more detail with reference to the drawings.

Figure 9 is an exploded perspective view showing the coupling structure of the drawer side device of the lifting assembly. And, Figure 10 is a cutaway perspective view showing the mounting state of the lifting shaft and the lifting rail that constitute the lifting assembly.

As shown in the drawing, the lifting shaft 43 and the lifting rail 44 may be mounted inside the mounting part 383. The lifting rail 44 may have a structure that can be extended in multiple stages in the vertical direction.

For example, the lifting rail 44 includes a fixed rail 441 mounted on the rail groove 383b, a moving rail 442 fixed to the lifting bracket 45, and a moving rail 441. It may include an intermediate rail 443 connecting the rail 442. It may have a structure in which the intermediate rail 443 is disposed inside the fixed rail 441 and the movable rail 442 is disposed inside the intermediate rail 443, and the fixed rail 441 and The middle rail 443 and the moving rail 442 may have a structure that overlaps each other. In addition, a plurality of bearing balls 444 are disposed on the inside and outside of the middle rail 443 so that the middle rail 443 and the moving rail 442 can slide in the vertical direction, and the lifting member 35 ) can provide a stroke for up and down lifting.

The position where the lifting rail 44 is disposed is a position corresponding to the center of the front space S1 in the front-back direction, and therefore guides the vertical movement at a position corresponding to the center portion of both sides of the lifting member 35. Enables the lifting member 35 to be lifted stably without tilting.

In addition, the lifting shaft 43 may be disposed on the side of the lifting rail 44. The lifting shaft 43 may be accommodated inside the mounting portion 383 and may be located in the shaft groove 383a. In addition, the lifting shaft 43 has a screw thread 431 formed on its outer peripheral surface, so that when the lifting shaft 43 rotates, the shaft holder 48 can move in the vertical direction along the lifting shaft 43.

A lower spacer 432 may be provided below the lifting shaft 43 to rotatably support the lifting shaft 43. The lower spacer 432 may be fixed to the bottom surface of the mounting portion 383, and the lower protrusion 437 protruding from the lower end of the lifting shaft 43 may be inserted. The lower spacer 432 may have a bearing-like structure.

The lifting shaft 43 may extend to the top of the mounting portion 383, and an upper protrusion 435 extending upward may be formed at the top of the lifting shaft 43. Additionally, a shaft gear 434 and an upper spacer 433 may be respectively mounted through the upper protrusion 435.

In detail, the shaft gear 434 is formed in the shape of a bevel gear and may be disposed on the lower portion 435a having a polygonal cross-section among the upper protrusions 435. Accordingly, the shaft gear 434 may have a structure that can rotate together with the lifting shaft 43. In addition, the shaft gear 434 may be gear-coupled in a vertically intersecting state with the drawer-side gear 472 mounted on the drawer-side shaft 47, and receive power from the drawer-side shaft 47. You can.

Additionally, the upper spacer 433 may be disposed on the upper portion 435b having a circular cross-section of the upper protrusion 435. The upper spacer 433 rotatably supports the upper end of the lifting shaft 43 and may be fixedly mounted on a spacer fixing member 436 provided above the lifting shaft 43. Additionally, the spacer fixing member 436 may be fixedly mounted on the mounting bracket 46. Accordingly, the upper and lower ends of the lifting shaft 43 can be supported in a rotatable state by the upper spacer 433 and lower spacer 432.

The mounting bracket 46 shields the open upper surface of the mounting portion 383 and can be mounted on top of both sides of the drawer body 38. Additionally, a bracket hole 461 into which the fixing protrusion 436a of the spacer fixing member 436 is inserted may be formed on one side of the mounting bracket 46 corresponding to the upper end of the lifting shaft 43.

Additionally, a bracket cutout 462 may be further formed on one side of the mounting bracket 46 corresponding to the upper part of the lifting rail 44. When the lifting rail 44 extends upward to raise the lifting member 35, the lifting rail 44 may pass through the bracket cutout 462 and extend upward.

The shaft holder 48 coupled to the lifting rail 44 and the lifting shaft 43 may be coupled to the lifting bracket 45.

The lifting bracket 45 is formed in a plate shape and may be made of a metal material to withstand the load of the lifting member 35 on which the food or container 36 is mounted. Additionally, the lifting bracket 45 may be disposed between the side cover 353 and the inner surface of the drawer body 38. In addition, the lifting bracket 45 may be coupled to one side of the lifting member 35, and may be combined with the lifting rail 44 and the shaft holder 48 to enable the lifting member 35 to be lifted. do.

The lifting bracket 45 includes an upper bracket 451 forming an upper shape, a lower bracket 452 forming a lower shape, and a middle portion of the bracket forming between the upper bracket 451 and the lower bracket 452 ( 453).

The upper part of the bracket 451 is located at the horizontal center of the lifting bracket 45 and may be formed to be coupled to the fixed rail 441 of the lifting rail 44. The horizontal width of the upper part of the bracket 451 may be at least equal to or wider than the horizontal width of the fixing rail 441, and may be formed to be narrower than the middle part of the bracket 453 and the lower part of the bracket 452. It could be.

Additionally, a rail coupling portion 454 may be formed on the upper portion of the bracket 451. The rail coupling portion 454 may be formed to be engaged with one side of the fixed rail 441. The rail coupling portion 454 may be formed so that a portion of the upper portion of the bracket 451 is cut, and the cut portion may be bent to provide a coupling structure with the moving rail 442. In addition, a screw hole 455 is formed in the lower part of the rail coupling portion 454 so that the lifting bracket 45 and the fixed rail 441 can be coupled again with a screw. The screw hole 455 may be further provided in the bracket middle portion 453 or the bracket lower portion 452, and may be stably coupled to the lifting rail 44 by a plurality of screws. When the lifting rail 44 is fixedly mounted on the upper part of the bracket 451, the lifting rail 44 may be arranged to extend vertically from the center of the lifting bracket 45.

Additionally, a rail shield 456 may be formed on the top of the bracket 451. The rail shield 456 may be formed by bending the upper end of the bracket upper 451 outward, and the bent length may be formed to shield at least the entire upper surface of the lifting rail 44. there is.

The lower part of the bracket 452 may be formed to be substantially coupled to the lifting member 35, particularly the lifting frame 352. The lower part of the bracket 452 is formed to be equal to or slightly smaller than the side length of the lifting member 35, and is entirely coupled to the side surface of the lifting member 35 to enable stable lifting and lowering movement of the lifting member 35. . In detail, the bracket lower part 452 may be in contact with the side of the lifting member 35, and the lower end of the bracket lower part 452 is bent inward to form a lower surface of the lifting member 35 or the lifting frame 352. A bracket coupling portion 457 on which the lower surface is seated may be formed. The lower bracket 452 may be coupled to the lifting frame 352 or the lifting member 35 and may be configured to support both ends of the lifting member 35.

The middle part of the bracket 453 connects the upper part of the bracket 451 and the lower part of the bracket 452, and may be formed to have a narrower horizontal width than the lower part of the bracket. In addition, the width of the bracket middle portion 453 can be formed at least to provide a structure in which the shaft holder 48 can be fixedly mounted at any position on both the left and right sides with respect to the lifting rail 44. . The bracket middle portion 453 extends upward to have a certain width at the bottom, and may be formed so that its width becomes narrower as it extends upward from the portion where the shaft holder 48 is coupled.

A holder opening 458 and a holder support portion 459 on which the shaft holder 48 is mounted may be formed in the bracket middle portion 453, and the holder opening 458 and the holder support portion 459 may be formed in the lifting bracket. The same structure may be provided at symmetrical positions on both left and right sides with respect to the lifting rail 44 mounted in the center of (45). Accordingly, the lifting brackets 45 provided on both left and right sides of the drawer body 38 may have the same structure, and can be used for common use by being molded into the same structure on both left and right sides without distinction.

The holder opening 458 may be formed in a shape corresponding to the cross-sectional shape of the shaft holder 48, and may be formed in a shape having at least one or more angles or a polygonal shape so that the shaft holder 48 does not rotate. So that it can be fixed while inserted into the holder opening 458.

Additionally, the holder support portion 459 may extend rearward to the top of the holder opening 458 and may extend to contact the upper surface of the shaft holder 48. In addition, the rear end of the holder support portion 459 is formed with a recessed portion 459a to prevent interference with the lifting shaft 43. The recessed portion 459a may be formed in a shape corresponding to the through hole 481 of the shaft holder 48.

Therefore, when the shaft holder 48 is raised/lowered, the force transmitted through the shaft holder 48 may act on the circumferential surface of the holder opening 458. In particular, when the shaft holder 48 is raised/lowered, the force transmitted through the shaft holder 48 may be applied to the circumferential surface of the holder opening 458. The lifting bracket 45 can be raised by pushing the holder support portion 459 from below.

Meanwhile, screw holes 458a may be further formed on both sides of the lower end of the holder opening 458. The screw penetrating the screw hole 458a on the outside of the lifting bracket 45 is fastened to the screw fastening portion 482 provided on both sides of the lower end of the shaft holder 48 to allow the shaft holder 48 to move up and down. Ensure that it is more firmly fixed to the bracket (45).

In this way, each part of the shaft holder 48 can be firmly coupled to the lifting bracket 45 by the inner surface of the holder opening 458, the holder support portion 459, and a screw, and the shaft The holder 48 and the lifting bracket 45 can be raised and lowered together.

Therefore, when the shaft holder 48 moves in the vertical direction along the screw, the force applied to the shaft holder 48 can be effectively transmitted to the lifting bracket 45. And, even if a force for lifting is applied through the shaft holder 48 at a position somewhat eccentric from the center of the lifting member 35, the lifting member ( 35) enables stable lifting and lowering without tilting.

Additionally, the side covers 353 may be coupled to both sides of the lifting plate 351 and the lifting frame 352. A bracket receiving portion 353a having a shape corresponding to the lifting bracket 45 may be formed on the outer surface of the side cover 353. Accordingly, the lifting bracket 45 can be closely fixed to the side cover 353, and the lifting bracket 45 and the side cover 353 can be lifted and lowered together.

In addition, a protrusion 353b corresponding to a groove 457a recessed at the bottom of the lifting bracket 45 is formed on the inside of the bracket receiving portion 353a, so that the lifting bracket 45 is connected to the bracket receiving portion 353a. ) so that it can be fixed more firmly on the inside. In addition, a bracket opening 353c may be formed inside the bracket receiving portion 353a at a position corresponding to the plurality of screw holes 455 and 458a, and the screw 353c fastened to the lifting bracket 45 may be It can be fastened from the inside of the side cover 353, and thus the lifting bracket 45 and the side cover 353 can be firmly fixed. At this time, the side cover 353 is made of a plastic material, and a separate cover plate 354 is further provided on the inside of the side cover 353 to cover the entire inner surface and upper surface of the side cover including the bracket opening. It can be shielded.

Figure 11 is a perspective view showing the mounting structure of the drawer shaft of the drawer side device. And, Figure 12 is a cutaway perspective view showing the power transmission structure of the drawer side device.

As shown in the drawing, shaft mounting portions 384 may be formed at the top of both sides of the drawer body 38. The shaft mounting portion 384 may be located in an area between the front of the drawer body 38 and the mounting portion 383, and the drawer side shaft 47 may be disposed.

In addition, the shaft mounting portion 384 includes a front opening 384a in which at least a portion of the front end is opened to communicate with the front of the drawer body 38, and at least a portion of the rear end is opened to communicate with the mounting portion 383. may include an open rear opening 384b.

Additionally, the drawer side shaft 47 may be disposed on the shaft mounting portion 384. Additionally, a shaft fixing member 386 may be provided to fix the drawer side shaft 47, and a mounting portion 384c for mounting the shaft fixing member 386 may be further formed.

In detail, the drawer side shaft 47 may extend from the front opening 384a to the rear opening 384b. In addition, the drawer connecting member 471 is coupled to the front end of the drawer side shaft 47, and the drawer connecting member 471 is exposed to the front of the drawer portion 32 through the front opening 384a. You can. In addition, as described above, the drawer connecting member 471 may be coupled to the door connecting member 416 when the door portion 31 and the drawer portion 32 are combined, and the door side device 41 It can be rotated together according to the driving of .

Additionally, a drawer-side gear 472 may be provided at the rear end of the drawer-side shaft 47. The drawer side gear 472 is formed in a bevel gear shape and can be coupled to the shaft gear 434 through the rear opening 384b. That is, the drawer side shaft 47 and the lifting shaft 43, which are arranged to cross each other perpendicularly, may be connected to each other by the drawer side gear 472 and the shaft gear 434, and power may be transmitted. do.

Additionally, a shaft fixing member 386 may be provided on the drawer side shaft 47. The shaft fixing members 386 may be provided in pairs on both left and right sides, and may serve to support the drawer side shaft 47 so that it can rotate without being tilted or floating. The shaft fixing member 386 may include a penetrating portion 386a in which a through hole 386c through which the drawer side shaft 47 passes is formed, and screw couplings are provided at the upper and lower sides of the penetrating portion 386a. A fixed end 386b may be formed.

Additionally, a shaft support member 386d may be provided inside the penetrating portion 386a. The shaft support member 386d supports the circumference of the drawer side shaft 47 and may be formed as a bearing structure penetrated by the drawer side shaft 47. Therefore, the shaft fixing member 386 not only stably supports the drawer side shaft 47 but also allows the drawer side shaft 47 to be mounted in a rotatable state.

A pair of the mounting portions 384c may be disposed on the shaft mounting portion 384 and may be formed to be coupled to the shaft fixing member 386. The mounting portion 384c is recessed in the center to accommodate the penetrating portion 386a, and may be formed to protrude so that a screw penetrating the fixed end 386b of the shaft fixing member 386 can be fastened. .

Accordingly, the drawer side shaft 47 can be maintained fixedly mounted by the shaft fixing member 386 in the shaft mounting portion 384, and the door side device 41 and the lifting shaft 43 and It can be interlocked and have a structure that can rotate together.

Meanwhile, the drawer side shaft 47 may be further provided with a spring-shaped elastic member 387. The elastic member 387 may be disposed between the drawer connection member 471 and the shaft fixing member 386, and may be configured to press the drawer connection member 471 forward. Therefore, the drawer connecting member 471 can remain coupled to the door connecting member 416 until the drawer portion 32 and the door portion 31 are separated, and the door side device 41 ) When driving, slip does not occur and power can be transmitted to the drawer side device 42.

Of course, the drawer side shaft 47 may be further provided with an elastic member support member 388 for supporting the elastic member 387, and the elastic member support member 388 is the elastic member 387. It supports one end and may be mounted on the shaft fixing member 386. Also, the elastic member support member 388 may be molded integrally with the shaft fixing member 386.

The drawer side shaft 47 may be mounted on the outer side of the drawer body 38, and the lifting shaft 43 may be mounted on the inner side of the drawer body 38. Additionally, the shaft mounting portion 384 on which the drawer side shaft 47 is mounted and the mounting portion 383 on which the lifting shaft 43 is mounted may communicate with each other through the rear opening 384b. Additionally, the drawer side gear 472 formed at the rear end of the drawer side shaft 47 may have a structure connected to the shaft gear 434 connected to the lifting shaft 43 through the rear opening 384b.

Hereinafter, we will look at the mounting structure of the drawer side device 42 mounted inside the drawer body 38 in more detail.

Figure 13 is a cutaway perspective view of the drawer body with a lifting shaft and rail mounted on it.

As shown in the drawing, the lifting shaft 43 and the lifting rail 44 may be mounted on the mounting portion 383 inside the drawer body 38. At this time, the upper and lower ends of the lifting shaft 43 may be supported so as to be rotatable, and the shaft gear 434 may be mounted so that the drawer side gear 472 can be gear-coupled with each other.

Additionally, the shaft holder 48 mounted to penetrate the shaft gear 434 may be configured to face the inside of the drawer body 38. Accordingly, the shaft holder 48 may be arranged to face the lifting bracket 45. Also, when the lifting shaft 43 rotates, the shaft holder 48 can move up and down along the lifting shaft 43.

Meanwhile, the lifting shaft 43 and the lifting rail 44 may be located further outside the inner wall of the drawer body 38 when accommodated in the mounting part 383. Therefore, when the lifting member 35 moves up and down, the lifting shaft 43 and the lifting rail 44 do not interfere with other components such as the lifting member or the lifting bracket 45 coupled to the lifting member 35. can do.

Additionally, the mounting portion bracket 46 may be coupled to the upper end of the mounting portion 383 so that the lifting shaft 43 can be fixedly mounted in a rotatable state inside the mounting portion 383. Also, when extended, the lifting rail 44 may pass through the mounting bracket 46 and extend upward.

Figure 14 is a cutaway perspective view of plates mounted on the drawer body.

As shown in the drawing, when the lifting shaft 43 and the lifting rail 44 are mounted, the drawer body 38 includes an outer side plate 391, an inner side plate 392, and an inner plate ( 395) can be mounted to form the inner and outer exteriors of the drawer body 38.

In detail, the exterior of the left and right sides that can be exposed when the drawer door 30 is pulled out can be completely shielded by the outer side plate 391. That is, the outer surface of the drawer main body 38, including the drawer rail 33 and the drawer side shaft 47, which are at least a part of the drawer side device 42 disposed on the side of the drawer main body 38. All components arranged in can be covered by the outer side plate 391. The outer side plate 391 is configured to have a metal texture to provide a more stylish and luxurious appearance.

In addition, the space inside the drawer unit 32, which is visible when the drawer door 30 is pulled out, is also formed by the inner side plate 392 and the inner plate 395, so that the drawer unit 32 It is possible to provide a unified appearance.

By mounting the plurality of plates 391, 392, and 395, the exterior and inner surfaces of the drawer portion 32 can be seen to have a metallic texture. Of course, a separate exterior plate is not provided on the lower and rear surfaces of the drawer part 32 that are not exposed to the outside and the front surface coupled with the door part 31, but virtually all of the parts exposed to the outside during use are as described above. It is obscured by plates 391, 392, and 395.

In particular, the mounting portion 383 may be exposed through the side opening 394 when the inner side plate 392 is mounted. That is, when the inner side plate 392 is mounted, the lifting shaft 43 and the lifting rail 44 inside the mounting portion 383 can be exposed, and the remaining portion is exposed by the inner side plate 392. It can be shielded. In addition, the lifting member 35 and the lifting bracket 45 can be coupled to or separated from the shaft holder 48 and the lifting rail 44 through the exposed side opening 394.

Meanwhile, the top of the inner side plate 392 can be bent outward, and the bent top can shield the tops of both sides of the drawer body 38 and the mounting bracket 46, and the outer side plate It contacts the top of (391) to form the exterior.

Among the lifting members 35, the lifting plate 351, which substantially supports food or containers, may be located on the bottom surface inside the drawer body 38. In addition, the lower ends of the mounting portion 383 and the side opening 394 are located above the lifting plate 351 to make it easier to install and service the lifting shaft 43 and the lifting rail 44. You can. In addition, the top of the mounting portion 383 and the side opening 394 extends to the top of the side of the drawer body 38 to maximize the stroke of the lifting member 35.

Figure 15 is a cutaway perspective view of a lifting bracket mounted on the drawer body.

As shown in the drawing, the lower end of the lifting bracket 45 is fixed to the lifting member 35, and the outer surface can be coupled to the shaft holder 48 and the lifting member 35. Accordingly, the lifting plate 351 or the lifting frame 352 can be connected to the shaft holder 48 and the lifting bracket 45 by the lifting bracket 45. At this time, based on the plate-shaped lifting bracket 45, the lifting member 35, the shaft holder 48, and the lifting rail 44 may be configured to be coupled to opposite sides.

When the lifting shaft 43 rotates while the lifting member 35, the shaft holder 48, and the lifting rail 44 are all coupled to the lifting bracket 45, the shaft holder 48 It can be moved in the vertical direction together with the lifting bracket 45. In addition, the lifting bracket 45 can be guided to move in the vertical direction by the lifting rail 44 disposed in the center, and the lifting member 35 is lifted up and down in a stable state without tilting.

At this time, as the shaft holder 48 moves upward along the lifting shaft 43 and the lifting rail 44 extends, the lifting bracket 45 can also move upward together, and the lifting member ( 35) can be lifted upward. Conversely, when the shaft holder 48 moves downward along the lifting shaft 43, the lifting rail 44 decreases, and the lifting bracket 45 moves downward along with the lifting rail 44. The lifting member 35 is moved toward the bottom surface of the drawer body 38.

Figure 16 is a partial perspective view showing the side cover mounted on the drawer body.

In the state shown in FIG. 15, the lifting bracket 45 may be combined with the side cover 353. The side cover 353 may be sized to shield not only the lifting bracket 45 but also the mounting portion 383 and the side opening 394.

The side cover 353 may be coupled to a side end of the lifting frame 352 or the lifting plate 351. Therefore, the lifting member 35 can be moved up and down when the lifting member 35 is lifted and lowered and the lifting rail 44 is pulled in and out, and the lifting shaft 43 and the lifting rail 44, which constitute the drawer side device 42, can be moved together. ) and the lifting bracket (45) can be prevented from being exposed.

In addition, an upper shielding portion 353d bent outward is formed at the upper end of the lifting side cover 353 to shield not only the inner side of the drawer portion 32 but also a portion of the top of the drawer portion 32. In addition, the mounting bracket 46 that may be exposed at the top or the top of the lifting rail 44 may be shielded from above.

Meanwhile, the side cover 353 is configured to surround the lifting bracket 45 and prevents the lifting bracket 45 from being exposed. Additionally, the side cover 353 may be formed of the same material as the inner side plate 392.

That is, when the side cover 353 is installed, the lifting bracket 45 as well as the lifting shaft, the lifting rail, and the lifting bracket 45 that are shielded by the lifting bracket 45 are not exposed. Accordingly, the inner side of the drawer unit 32 can be formed by the side cover 353 and the inner side plate 392.

The side cover 353 may be injection-formed from a plastic material as needed, and a cover plate 354 made of the same metal material as the inner side plate 392 is attached to the outer surface of the side cover 353. Alternatively, the outer surface may be coated with a metallic texture.

Since the side cover 353 is coupled to the lifting bracket 45, it can be raised and lowered together when the lifting member 35 is lifted. Even in the process of lifting the lifting member 35, the lifting bracket 45 ) are not exposed to the outside, and the integrity of the exterior is maintained.

Hereinafter, the state in which the drawer door 30 of the refrigerator 1 according to an embodiment of the present invention having the above structure is withdrawn, retracted, and raised will be examined in more detail with reference to the drawings.

Figure 17 is a perspective view of the drawer door in a closed state.

As shown in the drawing, the refrigerator 1 maintains both the rotating door 20 and the drawer door 30 in a closed state when food is stored. In this state, the user can withdraw and withdraw the drawer door 30 to store food.

The drawer doors 30 may be provided in plural numbers at the top and bottom, and may be pulled out and opened by a user's manipulation. At this time, the user may touch the operation unit 301 provided on the front of the rotary door 20 or the drawer door 30, and use the operation device 302 provided at the bottom of the drawer door 30. Input of an opening operation may be possible. In addition, the operating unit 301 and the operating device 302 may be configured to individually operate the drawer door 30 and the lifting and lowering member 35. Of course, it would also be possible for the user to hold the handle of the drawer door 30 and open it.

In the following, opening and lowering of the lowermost drawer door 30 among the upper and lower drawer doors 30 is explained as an example. However, both the upper and lower drawer doors 30 are operated in the same manner. It will be possible to withdraw, deposit and elevate.

Figure 18 is a perspective view of the drawer door in a fully open state. And, Figure 19 is a cross-sectional view of the drawer door in the same state as Figure 18.

As shown in the drawing, the drawer door 30 is pulled forward according to the user's operation to pull out the drawer door 30. The drawer door 30 can be pulled out as the pull-out rail 33 extends.

Meanwhile, the drawer door 30 may be configured to be pulled out and closed by driving the pull-out motor 14 rather than being opened by the user directly pulling it. The drawer rack 34 provided on the bottom of the drawer door 30 may be coupled to the pinion gear 141 that rotates when the drawer motor 14 provided in the cabinet 10 is driven. The drawer door 30 is withdrawn and retracted according to the driving of the retraction motor 14.

The drawer door 30 can be pulled out at least to a distance where the front space S1 inside the drawer unit 32 can be completely exposed to the outside. Therefore, in this state, the lifting member 35 can be prevented from interfering with the doors 20 and 30 or the cabinet 10 disposed above.

At this time, the withdrawal/extraction distance of the drawer door 30 may be determined by the withdrawal/extraction detection device 15 disposed on the cabinet 10 and/or the drawer door 30. The withdrawal/extraction detection device 15 may be configured as a detection sensor that detects a magnet 389 to detect whether the drawer door 30 is completely withdrawn or closed.

For example, as shown, a magnet 389 may be provided at the bottom of the drawer unit 32 and a detection sensor may be provided in the cabinet 10. The withdrawal/extraction detection device 15 is located at a position corresponding to the position of the magnet 389 when the drawer door 30 is closed and the position of the magnet 389 when the drawer door 30 is completely withdrawn. It can be provided in . Therefore, it is possible to determine the drawer door 30's drawer door 30 using the drawer detection device 15.

In addition, if necessary, switches may be provided at the positions where the drawer door 30 is completely retracted and the position where the drawer door 30 is fully withdrawn to detect the withdrawal and retraction of the drawer door 30, and the rotation speed of the withdrawal and withdrawal motor 14 may be adjusted. The withdrawal and retraction of the drawer door 30 may be detected by counting or by a sensor that measures the distance between the back of the door portion 31 and the front end of the cabinet 10.

When the drawer door 30 is completely withdrawn, the lifting motor 411 is driven to raise the lifting member 35. The lifting member 35 may be configured to operate in a situation where the drawer door 30 is sufficiently withdrawn to ensure safe lifting and lowering of the food or container 36 seated on the lifting member 35.

That is, in a state where the drawer door 30 is pulled out and the front space is completely exposed to the outside, the lifting member 35 rises and the container 36 seated on the lifting member 35 or the stored food is placed on another door. It can be prevented from interfering with the fields 20 and 30 or the cabinet 10.

The lifting member 35 may begin to rise when the drawer door 30 is fully withdrawn. Additionally, in order to ensure the user's safety and prevent damage to stored food, the lifting member 35 may be configured to start rising after a set time has elapsed after the drawer door 30 has been confirmed to be withdrawn.

Of course, after withdrawing the drawer door 30, the user may directly input the rise of the lifting member 35 by manipulating the operation unit 301. That is, the operating unit 301 may be operated to withdraw the drawer door 30, and the operating unit 301 may be operated again to lift the lifting member 35. Additionally, a user may manually withdraw and withdraw the drawer door 30, and then operate the operation unit 301 to elevate the lifting member 35.

Figure 20 is a perspective view of the drawer door in a fully raised state. Figure 21 is a cross-sectional view of the drawer door in the same state as Figure 20.

In the state shown in FIGS. 18 and 19, with the drawer door 30 being pulled out, the lifting member 35 can be raised and lowered. The lifting member 35 can be lifted and lowered by the operation of the lifting motor 411, and the door side device of the door portion 31 and the drawer side device 42 of the drawer portion 32 are coupled to each other. In this state, power is transmitted so that the lifting member 35 can be raised and lowered.

Looking at this in more detail, when the lifting motor 411 operates, the door shafts 413 on both sides connected to the lifting motor 411 rotate, and the first shaft connected to the door shaft 413 The gear 414 and the second gear 415 rotate.

The rotational force of the door side device 41 can be transmitted to the drawer side device 42 by the door connecting member 416 and the drawer connecting member 471 that are connected to each other. Accordingly, the rotational force transmitted from the door side device 41 rotates the drawer side shaft 47 and the drawer side gear 472 at the end of the drawer side shaft 47.

The drawer side gear 472 and the shaft gear 434 are connected to each other and transmit rotational force, and the rotational force of the drawer side shaft 47 rotates the lifting shaft 43. As the lifting shaft 43 rotates, the screw holder 48 moves upward along the lifting shaft 43.

At this time, the screw holder 48 is coupled to the lifting bracket 45 and moves upward together with the lifting bracket 45, and the lifting member 35 coupled with the lifting bracket 45 also moves upward together. is moved to At this time, the lifting rail 44 at the center of the lifting bracket 45 extends upward and guides the lifting member 35 to be raised and lowered stably without tilting.

In addition, the side covers 353 on both sides of the lifting member 35 shield the lifting bracket 45, the mounting portion 383, and the components inside the mounting portion 383 so that these components are not exposed. On the other hand, it prevents food inside from getting stuck or flowing in.

Meanwhile, the lifting member 35 may be raised to a sufficient height to facilitate access to the food or container mounted on the lifting member 35, allowing the user to easily lift the food or container.

The lifting height of the lifting member 35 can be increased until the screw holder 48 is located at the upper end of the lifting shaft 43. And, when the raising of the lifting member 35 is completed, the lifting motor 411 stops driving.

When the raising completion signal of the lifting member 35 is input, the driving of the lifting motor 411 is stopped, and for this purpose, a height detection device 16 capable of detecting the position of the lifting member 35 will be provided. You can. The height sensing device 16 is provided in the door part 31 and may be installed at a height corresponding to the maximum raised position of the lifting member 35 and the lowest lowered position of the lifting member 35.

The height detection device 16 may be configured as a detection sensor that detects the magnet 355, and detects the magnet 355 provided on the lifting member 35 to determine whether the lifting member 35 is complete. You can judge. Additionally, the height sensing device 16 may be configured as a switch structure to turn on the switch when the lifting member 35 is fully raised. Additionally, the height sensing device 16 may be provided on the lifting rail 44 or the lifting shaft 43 to detect the maximum raised position of the lifting member 35. Additionally, it may be possible to determine whether the lifting member 35 can be raised to its maximum level according to changes in the load applied to the lifting motor 411.

Meanwhile, when the lifting member 35 is raised to its maximum height, the lifting motor 411 is stopped. In this state, the lifting member 35 is located inside the drawer unit 32, but the food or container 36 seated on the lifting member 35 is larger than the open upper surface of the drawer unit 32. It can be located in a high position and allows easy access by users. In particular, since there is no need to bend down excessively to lift the container 36, safer and more convenient work is possible.

After the user's food storage task is completed, the user can operate the operation unit 301 to lower the lifting member 35. The lowering of the lifting member 35 may be achieved by reverse rotation of the lifting motor 411, and may be gradually achieved through a process opposite to the above-described process.

And, when the lifting member 35 is completely lowered, the state shown in FIG. 18 or FIG. 19 is reached, and the lowering of the lifting member 35 can be completed by the height sensing device 16. The height sensing device 16 may be further provided at a corresponding position to detect the magnet provided in the lifting member 35 when the lifting member 35 is located at the lowest position. Accordingly, when the completion of lowering of the lifting member 35 is detected, the lifting motor 411 stops.

And, after the lifting motor 411 stops, the drawer door 30 can be retracted. At this time, the drawer door 30 may be closed by a user's manipulation or by driving the withdrawal/extraction motor 14. When the drawer door 30 is completely closed, the state shown in FIG. 17 may be reached.

Meanwhile, the present invention may be possible in various other embodiments in addition to the above-described embodiments.

Hereinafter, other embodiments of the present invention will be described with reference to the drawings. Among other embodiments of the present invention, the same components as the above-described embodiments use the same reference numerals, and detailed descriptions thereof will be omitted.

Figure 22 is a perspective view showing the structure of an elevating assembly according to another embodiment of the present invention.

As shown in the drawing, the lifting assembly 40 according to another embodiment of the present invention may be composed of a door side device 41 and a drawer side device 42. The door side device 41 may be provided on the door portion 31 of the drawer door 30, and the drawer side device 42 may be provided on the drawer portion 32 of the drawer door 30. When the door part 31 and the drawer part 32 are combined, the drawer side device 42 and the door side device 41 may be connected to each other to enable transmission of power. In addition, the door side device 41 and the drawer side device 42 can be separated from each other, and thus the door part 31 and the drawer part 32 can also be separated.

The door side device 41 may be provided inside the door part 31 and includes a motor assembly 412 including a lifting motor 411 and gears connected to the lifting motor 411, and the motor assembly ( It may include a door side shaft 417 that is connected to and rotates (412), and a door connection member 416 provided at an end of the door side shaft 417.

At this time, the motor axis of the lifting motor 411 may be arranged in the front-back direction, and the width direction of the motor assembly 412 is parallel to the front of the door part 31, so that the motor is mounted on the door part 31. The depth required to install the assembly 412 can be minimized. Additionally, the door shaft 417 may be disposed in the front-to-back direction and connected to the door connecting member 416. Of course, if necessary, the door shaft 417 and the door connecting member 416 may be formed as one body.

Additionally, a pair of the motor assembly 412, the door shaft 417, and the door connecting member 416 may be provided on both left and right sides and may be configured to have the same structure. In addition, the lifting motors 411 provided on both sides can be operated together, and can operate simultaneously and generate the same amount of rotational force so that the lifting member 35 can be lifted and lowered in a horizontal state without being tilted.

By arranging the lifting motor 411 on both left and right sides, the size of the lifting motor 411 can be made smaller compared to when a single lifting motor 411 is provided, and the size of the lifting motor 411 can be reduced in the front-to-back direction of the motor assembly 412. The thickness can be minimized. Therefore, it is possible to secure sufficient insulation thickness of the door portion 31.

In addition, greater force can be provided to the lifting member 35 by using the pair of lifting motors 411, and therefore, even when heavy food or containers are placed on the lifting member 35, the lifting member 35 ) can ensure more stable lifting and lowering operation.

Meanwhile, the drawer side device 42 may be configured to be connected to the door side device 41, and has the same structure as the drawer side device 42 in the above-described embodiment, so detailed description thereof will be omitted.

Figure 23 is a perspective view of a refrigerator according to another embodiment of the present invention.

As shown in the drawing, a refrigerator 1 according to another embodiment of the present invention may include a cabinet 10 in which an upper and lower storage space is formed, and a door 2 that opens and closes the storage space. .

The door 2 is a rotary door 20 provided at the upper front of the cabinet 10 to open and close the upper storage space, and a drawer type provided at the lower front of the cabinet 10 to open and close the lower storage space. A door 30 may be provided. The drawer door 30 can be withdrawn back and forth as in the above-described embodiment, and the lifting member 35 inside the drawer door 30 can be lifted up and down while the drawer door 30 is pulled out. You can have

An operating unit 301 or an operating device 302 may be provided on one side of the door unit 31, and the drawer door 30 can be pulled in and out by operating the operating unit 301 or the operating device 302. /Or the lifting member 35 can be raised and lowered.

The drawer part 32 is provided with a lifting member 35, and the lifting member 35 can be raised and lowered by driving the lifting assembly 40 provided in the door part 31 and the drawer part 32. do. Since the configuration of the drawer door 30 and the lifting assembly 40 are the same as the above-described embodiment, their detailed description will be omitted.

The lifting member 35 may be provided with a plurality of containers 361. The container 361 may be a sealed container such as a kimchi container, and a plurality of containers may be mounted on the lifting member 35. The container 361 can be moved up and down together when the lifting member 35 is lifted up and down. Accordingly, at least a portion of the container 361 can protrude upward from the drawer portion 32 in an elevated state, and the user can easily lift the container 361.

Meanwhile, the lifting member 35 may interfere with the rotary door 20 when the rotary door 20 is open even when the drawer-type door 30 is pulled out, so the rotary door 20 ) is configured to be raised in a closed state. To this end, a door switch may be further provided to detect opening and closing of the rotating door 20.

Figure 24 is a perspective view of a refrigerator according to another embodiment of the present invention.

As shown in the drawing, a refrigerator 1 according to another embodiment of the present invention includes a cabinet 10 forming a storage space, and a door 2 that opens and closes the open front of the cabinet 10. can do.

The door 2 forms the front exterior of the refrigerator 1 in a closed state and may be configured as a drawer-type door 30 that is pulled out in the front and back directions. A plurality of the drawer-type doors 30 may be arranged sequentially in the vertical direction, and each drawer-type door 30 can be independently withdrawn and withdrawn by a user's operation, and the lifting member inside the drawer-type door 30 (35) may be configured to be capable of being lifted up and down. The withdrawal and retraction of the drawer door 30 and the elevation of the lifting member 35 can be performed separately, and after the drawer door 30 is pulled out, the lifting member 35 is raised and the lifting member 35 is pulled out. After the drawer door 30 is lowered, the drawer door 30 may be retracted continuously.

In the case where the drawer-type door 30 is arranged vertically in plurality, when the drawer-type door 30 disposed relatively upward is pulled out, the lifting and lowering of the inside of the drawer-type door 30 disposed relatively downward By preventing the member 35 from rising, stored food and containers can be prevented from interfering with the drawer-type door 30 pulled out from above.

24 shows, for example, that the lifting member 35 is raised while the drawer-type door 30 positioned at the bottom is pulled out, but all of the drawer-type doors 30 disposed above are also raised. After withdrawal, the lifting member 35 provided inside may be able to be lifted.

Of course, if the height of the drawer-type doors 30 located at the top is sufficiently high, the drawer-type door 30 located at the bottom or the lifting member 35 of the plurality of drawer-type doors 30 located relatively downward It may also have a structure that can only be lifted up and down.

Figure 25 is a perspective view of a refrigerator according to another embodiment of the present invention.

As shown in the drawing, a refrigerator 1 according to another embodiment of the present invention includes a cabinet 10 forming a storage space, and a door 2 that opens and closes the open front of the cabinet 10. can do.

The storage space inside the cabinet 10 can be divided into upper and lower sides, and if necessary, the upper and lower storage spaces can be divided into left and right sides again.

The door 2 is provided at the upper part of the cabinet 10 and is rotatably mounted to open and close the upper storage space, and a rotary door 20 is provided at the lower part of the cabinet 10 and is mounted to be withdrawn and retracted. It may be composed of a standing door (2) that opens and closes the lower storage space.

Additionally, the lower space of the cabinet 10 may be divided into left and right sides, and a pair of drawer-type doors 30 may be provided to open and close each of the divided lower spaces. A pair of the drawer doors 30 are arranged side by side on both left and right sides, and each drawer door 30 will have the same structure.

The drawer-type door 30 has the same configuration as the above-described embodiment, and can be pulled in and out by a user's operation. The lifting member 35 is raised and lowered in a state in which the drawer-type door 30 is pulled out, allowing the user to see more. It is possible to conveniently access food or containers inside the drawer-type door 30.

Claims (11)

A cabinet forming a storage space;
a drawer door that opens and closes the storage space and has a storage space with an open upper surface;
A lifting member provided inside the storage space and supporting food and containers; and
It includes a lifting assembly that lifts the lifting member in an upward and downward direction,
The drawer door is:
a door portion that opens and closes the storage space and forms the front of the drawer door; and
A drawer unit coupled to the rear surface of the door unit, forming the storage space, and accommodating the lifting member therein,
The lifting assembly is:
a driving unit provided inside the door unit; and
It is disposed on the drawer unit and includes a lifting part that raises and lowers the lifting member through a driving force transmitted from the driving part,
The driving unit:
a motor assembly provided inside the door unit and generating power; and
It includes a door connecting member disposed in the front-back direction on the door part and connected to the motor assembly to rotate about its axis,
The lifting unit:
a drawer connecting member disposed in a front-back direction at a position corresponding to the door connecting member on the front of the drawer unit and rotating about its axis together with the driving unit; and
A refrigerator including a drawer side shaft that extends in the front-back direction from the drawer unit and rotates with the drawer connection member to transmit the power to raise and lower the lifting member.
According to claim 1,
The door part and the drawer part are removable from each other,
The door connecting member is exposed to the rear of the door, and the drawer connecting member is exposed to the front of the drawer,
A refrigerator in which the door connecting member is movable in a forward and backward direction with respect to the drawer connecting member and is detachable from the drawer connecting member.
According to claim 1,
A refrigerator including a door side shaft where one side of the drive unit is rotatably connected to the motor assembly and the other side is connected to the door connection member.
According to claim 1,
The lifting unit includes a lifting shaft arranged in a vertical direction, connected to the drawer-side shaft, and rotated by the drawer-side shaft,
The lifting member:
A lifting plate supporting the food and container; and
A refrigerator coupled to the lifting plate and including a lifting bracket that is lifted and lowered by rotation of the lifting shaft and spaced rearward from the door portion.
According to clause 4,
The motor assembly includes a lifting motor disposed in the center of the door portion,
The driving part
a door side shaft connected to the lifting motor and disposed in the width direction toward both ends of the door;
a door-side first gear provided at the end of the door-side shaft; and
The refrigerator further includes a door-side second gear vertically coupled to the door-side first gear and connected to the door connection member.
According to claim 1,
The drawer door includes a drawer body that has an open upper surface and forms a storage space therein,
A refrigerator having a mounting part on which the lifting part is mounted on a side of the drawer main body.
According to claim 1,
Connecting the drawer door and the storage space and further comprising a pull-out rail that guides the pull-out and pull-out of the drawer door,
The storage space of the drawer door is:
a front space where the lifting member is provided; and
Including a rear space behind the front space,
The pull-out rail has a pull-out distance such that the front space is completely exposed to the outside and the rear space is located inside the cabinet,
A refrigerator including a drawer cover mounted on the inside of the drawer door, dividing the front space and the rear space, and simultaneously shielding the upper surface of the rear space.
According to claim 1,
a rotating door disposed above the drawer door and opening and closing the storage space;
a pull-out rail connecting the drawer door and the storage space and guiding the pull-out and pull-out rail of the drawer door;
It includes a pull-out motor that moves the drawer door through the pull-out rail,
The refrigerator is disposed on the rotary door or the drawer door, and further includes an operation unit for withdrawing and retracting the drawer door and lifting and lowering the lifting unit.
According to clause 8,
The operating unit is configured to individually operate the drawer door being drawn in and out and the lifting unit being raised and lowered.
According to clause 8,
The drawer door is pulled out by a manipulation input through the manipulation unit,
A refrigerator configured to raise and lower the lifting member when an operation is input again through the operating unit.
According to clause 7,
Further comprising a withdrawal/input detection device disposed on the bottom of the cabinet and the bottom of the drawer unit,
The withdrawal/input detection device is:
A detection sensor disposed at the front of the bottom of the cabinet;
It includes magnets disposed on the front bottom and rear bottom of the drawer unit to correspond to the position of the detection sensor,
A refrigerator where the magnet disposed on the rear floor is disposed in the rear space.