KR20200140551A - Refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator. According to an embodiment of the present invention, the refrigerator comprises: a cabinet having a storage space; a drawer type door having a door unit opening and closing the storage space and having a drawer unit providing an accommodation space; a grill pan forming a rear surface of the storage space and a cold air outlet discharging cold air toward the door unit; and a lifting device provided in the drawer unit and lifting at least a portion of the accommodation space. A back surface of the door unit and a front surface of the drawer unit are spaced, and an air hole allowing the cold air flowing between the back surface of the door unit and the drawer unit to be introduced into the drawer unit is formed on the front surface of the drawer unit.

Description

Refrigerator {Refrigerator}

The present invention relates to a refrigerator.

In general, refrigerators are home appliances that allow low-temperature storage of food in an internal storage space that is shielded by a door. To this end, the refrigerator is configured to store the stored food in an optimal state by cooling the interior of the storage space using cold air generated through heat exchange with the refrigerant circulating through the refrigeration cycle.

Recent refrigerators are gradually becoming larger and multifunctional in accordance with changes in dietary life and the trend of high-end products, and refrigerators with various structures and convenience devices that enable users' convenience and efficient use of internal space are being released. .

The storage space of the refrigerator can be opened and closed by a door. In addition, it may be classified into various types of refrigerators according to the arrangement of the storage space and the structure of the door opening and closing the storage space.

Refrigerator doors can be classified into a rotating door in which the storage space is opened and closed by rotation, and a drawer door in which the storage space is opened and closed.

In addition, the drawer door is often disposed in the lower area of the refrigerator. When the drawer door is disposed in the lower area of the refrigerator, the waist must be bowed to take out the basket or food accommodated in the drawer door, and the basket or If the weight of the food is heavy, you may feel inconvenient to use the basket or cause injury.

In order to solve this problem, various structures in which a drawer-type door can be elevated have been developed.

Representatively, U.S. Patent No. 9,377,238 discloses a refrigerator provided with a lifting mechanism for lifting a bin provided in a refrigerator compartment.

However, in such a conventional technique, a structure for effectively supplying cold air into the bin is not disclosed. In particular, since the bin has a structure in which all surfaces other than the top surface are closed, there is a problem that it is impossible to circulate air inside the bin or circulate inside and outside the bin.

Accordingly, there is a problem in that frost or freezing grows on the wall of the bin due to cold air stagnant inside the bin. In particular, in the structure of a bin having a structure that is completely exposed to the outside by vertical lifting, inflow of external moisture or attachment of external moisture to the wall becomes more active, and there is a problem in that freezing inside the bin due to cold air stagnation becomes more frequent.

An embodiment of the present invention is to provide a refrigerator in which an electrical device for lifting is provided inside a door part, and a mechanical device for lifting is provided in a drawer part, respectively.

An object of the present invention is to provide a refrigerator having a structure in which at least a part of a drawer part can be lifted and lowered, and a structure in which cool air circulation inside the drawer part is smoothly provided.

An embodiment of the present invention is to provide a refrigerator capable of improving the appearance by reducing the occurrence of frost and freezing in the drawer.

An object of the present invention is to provide a refrigerator capable of improving the appearance by reducing the occurrence of frost and freezing on the exterior of a drawer formed of a stainless material.

An object of the present invention is to provide a refrigerator capable of smoothly circulating cool air inside and outside the drawer while maintaining the strength of the drawer.

An embodiment of the present invention is to provide a refrigerator that facilitates circulation of cool air in a drawer-type storage space.

An object of the present invention is to provide a refrigerator in which cold air flows smoothly between a door portion of a drawer-type door and a drawer portion, which are drawn in and out of a drawer-type door.

An object of the present invention is to provide a refrigerator that allows cold air supplied to a door to flow into a drawer through a rear surface of the door.

An object of the present invention is to provide a refrigerator in which cold air flows smoothly between a basket and a drawer in a drawer-type door provided with a basket.

A refrigerator according to an embodiment of the present invention includes: a door unit provided with a driving device; A drawer connected to the driving device and provided with a lifting device for lifting; It may include an air hole that is opened on the front of the drawer and allows cold air flowing between the door and the drawer to flow into the drawer.

A refrigerator according to an embodiment of the present invention includes a door unit for opening and closing a storage space; A drawer part drawn in and out together with the door part; An elevating device provided inside the drawer; It may include an air hole that is opened in the front of the drawer and allows cold air flowing between the door and the drawer to flow into the drawer.

A refrigerator according to an embodiment of the present invention includes a door unit for opening and closing a storage space; A drawer part drawn in and out together with the door part; An elevating device provided inside the drawer; It includes an air hole that is opened in the front of the drawer and allows cold air flowing between the door and the drawer to flow into the drawer, and a plurality of air holes are formed on the front of the drawer, and the lifting device and the drawer It can be arranged entirely in the area between the tops.

A refrigerator according to an embodiment of the present invention includes a door unit for opening and closing a storage space; A drawer part drawn in and out together with the door part; It includes an air hole that is opened in the front of the drawer and allows cold air flowing between the door and the drawer to flow into the drawer, and a plate made of metal may be provided on the inner and outer surfaces of the drawer.

A refrigerator according to an embodiment of the present invention includes a door unit for opening and closing a storage space; A drawer part which is drawn in and out with the door part, wherein the drawer part comprises: a drawer body forming an outer shape of the drawer part; And a plate made of a metal material provided on the inner and outer surfaces of the drawer body to form an inner and outer tube, and a main body air hole is formed in the drawer body, and a plate air hole is formed in the plate corresponding to the main body air hole. Cold air flowing between the door part and the drawer part may flow into the drawer part.

A refrigerator according to an embodiment of the present invention includes a door unit for opening and closing a storage space; A drawer part drawn in and out together with the door part; An air hole that is opened in the front of the drawer and allows cold air flowing between the door and the drawer to flow into the drawer, and an exhaust hole through which cold air inside the drawer is discharged to the outside is provided at a lower front of the drawer. Can be formed.

A refrigerator according to an embodiment of the present invention includes a door unit for opening and closing a storage space; A drawer part drawn in and out together with the door part; It includes an air hole that is opened in the front of the drawer, and the rear surface of the door and the front of the drawer are spaced apart, and cold air flowing between the door and the drawer may flow into the drawer through the air hole. .

A refrigerator according to an embodiment of the present invention includes a door unit for opening and closing a storage space; A drawer part drawn in and out together with the door part; A cold air outlet for discharging cold air from the rear of the storage space to the front; An air hole that is opened in the front of the drawer and allows cold air flowing between the door and the drawer to flow into the drawer, and air guiding cold air to be guided between the door and the drawer on the rear surface of the door. A guide portion may be formed.

A refrigerator according to an embodiment of the present invention includes a door unit for opening and closing a storage space; A drawer part drawn in and out together with the door part; An elevating device provided inside the drawer; An air hole that is opened in the front of the drawer to allow cold air flowing between the door and the drawer to flow into the drawer; A basket seated in the lifting device; The upper end of the basket may protrude more upward than the upper end of the drawer portion, so that cold air may be guided downward along the outer surface of the basket.

A refrigerator according to an embodiment of the present invention includes a cabinet in which a storage space is formed; A drawer door including a door unit for opening and closing the storage space and a drawer unit for providing a storage space; A grill pan that forms a rear surface of the storage space and has a cool air discharge port for discharging cool air toward the door; A lifting device provided in the drawer unit for lifting at least a portion of the storage space; wherein the rear surface of the door unit and the front surface of the drawer unit are spaced apart, and flow between the rear surface of the door unit and the drawer unit at the front of the drawer unit It may include an air hole through which cold air is introduced into the drawer.

An air guide portion may be formed on the rear surface of the door portion to be inclined or rounded, and to guide cold air toward the door portion between the door portion and the drawer portion.

The air guide part may be formed above the upper end of the drawer part.

A door light that illuminates the drawer may be provided on a rear surface of the door part above the drawer part, and the air guide part may be formed on an outer surface of the door light.

The door light may extend at least equal to or longer than the length of the drawer in the horizontal direction.

The door portion is provided with a driving device that provides power for driving the lifting device, and the driving device and the lifting device may be connected to each other through a drawer opening formed in the front of the drawer.

The air hole may be formed above the drawer opening.

The drawer may include a drawer body forming the shape of the drawer, and a plate formed of a plate-shaped metal material provided on an inner and outer surface of the drawer body and forming an exterior of the drawer.

The air hole and the drawer opening may be formed through the drawer body and the plate at positions corresponding to each other.

The drawer opening may be provided at a lower front of the drawer, and a plurality of air holes may be disposed in a region between the drawer opening from the upper end of the drawer.

The plurality of air holes may be entirely disposed in an area between the drawer opening at the upper end of the drawer part.

The plurality of air holes may be concentrated in a lower portion of an area between the drawer opening from the upper end of the drawer.

The drawer openings are disposed on both sides of the lower front side of the drawer, and exhaust holes passing through the drawer may be further formed between the drawer openings on both sides.

The exhaust hole and the drawer opening may be formed at a position lower than the upper end of the lifting device.

The exhaust hole is formed larger than the air hole, and may be formed in a vertically long hole shape.

A refrigerator according to an embodiment of the present invention includes a cabinet forming a storage space; A door part for opening and closing the opened front surface of the storage space; A drawer unit defining a storage space at the rear of the door unit and being drawn in and out with the door unit, wherein the drawer unit includes: a drawer body forming the shape of the drawer unit; A plurality of plates having main body air holes penetrating through the front of the drawer main body, provided on the inner and outer sides of the drawer main body, and formed in the shape of a metal plate to form an inner exterior of the drawer unit; And a plate air hole formed through the plate corresponding to the drawer side air hole, and cold air may be introduced into the drawer part through the main body air hole and the plate air hole in front of the drawer part.

The plate may include a front plate forming an inner front surface of the drawer, and a plurality of plate air holes may be formed in the front plate.

The plate may include an outer side plate forming both outer left and right side surfaces of the drawer unit, and an inner side plate forming both inner left and right side surfaces of the drawer unit.

The body air hole may be formed larger than the plate air hole, and a plurality of plate air holes may be disposed inside the body air hole.

The body air hole may be formed in a long hole shape extending in the vertical direction.

The spacing between the plurality of main body air holes may be formed larger than the spacing between the plurality of plate holes.

A driving device for providing power is provided in the door part, an elevating device connected to the driving device in the drawer part to move up and down is provided, a drawer opening is formed in the front of the drawer part, and the driving device And the lifting device may be connected through the drawer opening.

The plate air hole may be evenly disposed over the entire area above the lifting device.

The drawer opening may be formed below the main body air hole and the plate air hole.

The drawer opening is provided with a pair at both side ends of the main body,

A plurality of exhaust holes through which cold air of the drawer is discharged may be formed between the pair of drawer openings.

A drawer opening cutout and an exhaust hole cutout may be formed at a lower end of the plate at a position corresponding to the drawer opening and the exhaust hole.

The drawer opening and the exhaust hole may be covered by the lifting device.

A refrigerator according to an embodiment of the present invention includes a cabinet forming a storage space; A drawer door including a door unit for opening and closing the storage space and a drawer unit for providing a storage space; A grill pan forming at least a part of a rear surface of the storage space; A cold air outlet opening in the grill pan and for discharging cold air forward from a position higher than the drawer portion; An elevating device provided inside the drawer and configured to move up and down; A basket that is seated in the lifting device and has an open top surface, and when the drawer-type door is closed, the basket protrudes more upward than the rear end of the drawer part, and a portion of the cold air discharged from the cold air discharge port is the basket You can guide them to face downwards.

An air hole may be formed in the front of the drawer to allow cool air in front of the drawer to flow into the drawer.

A cold air intake intake part through which air inside the storage space is sucked may be formed at a lower end of the grill fan.

The cold air intake part may extend toward between the inner surface of the storage space and the rear surface of the drawer part.

A drawer cover is provided inside the drawer to divide the storage space into a front space and a rear space in which the lifting device is provided, and the drawer cover includes a front cover extending from a bottom surface of the drawer to an upper end of the drawer. Wow; It may include a cover upper surface portion extending from an end of the cover front portion to a rear end of the drawer portion to shield an upper surface of the rear space.

The upper end of the basket may protrude further upward than the upper surface of the cover.

A basket hole penetrating through one surface of the basket may be opened in the basket, and the basket hole may be formed at a height between an upper end of the basket and an upper surface of the cover.

A plurality of basket holes may be continuously formed along the circumferential surface of the basket.

The basket hole may be formed at a position facing the cold air outlet.

An exhaust hole through which cold air inside the drawer is discharged to the outside of the drawer may be formed at a lower front of the drawer.

In the refrigerator according to the proposed embodiment, the following effects can be expected.

In the refrigerator according to an embodiment of the present invention, a part of the drawer is raised and lowered, so that the user can store food without excessive bending of the waist, and the storage of heavy objects is further facilitated, so that a significant improvement in user convenience can be expected. .

In addition, a part of the storage space inside the drawer door is configured to be elevated and lowered while the drawer door is pulled out. In addition, a driving device composed of an electric device for providing power is provided inside the door part, and the lifting device for lifting is provided inside the drawer part so that both the driving device and the lifting device are not exposed to the outside. It is possible to ensure stability and improve the appearance.

In addition, an air hole is formed in the front of the drawer, and cool air can be introduced from the front of the drawer to the inside of the drawer to facilitate circulation of cool air in the drawer.

In addition, the air hole is formed in a region of the lifting device and the upper portion of the drawer to effectively circulate cool air inside the drawer, and cool air is congested on the inner and outer surfaces of the drawer by circulating cool air inside the drawer. There is an advantage that can prevent the growth of frost formation and freezing caused by.

In particular, when a stainless steel plate is provided on the inner and outer sides of the drawer, the occurrence of frost and the growth of freezing may be more noticeable and the appearance may be impaired. However, due to the cool air circulation structure inside the drawer, the above It is possible to effectively prevent the occurrence of frost and freezing on the inside and outside of the drawer, and there is an advantage of improving the appearance.

In addition, a main body air hole may be formed in a drawer body forming the shape of the drawer portion, and a plate air hole may be formed at a position corresponding to the main body air hole. Therefore, it is possible to secure a flow passage of cold air and maintain the strength of the drawer at the same time.

In particular, by forming the main body air hole to be large and the plate air hole to be small, it is possible to prevent deterioration of the appearance due to the formation of the air hole, and to prevent the food stored inside the drawer from falling out of the drawer part. May be.

In addition, an exhaust hole for exhausting the cool air inside the drawer may be formed at the lower end of the drawer part, and thus, the cold air is introduced into the drawer part through the air hole and passes through the front surface of the drawer part again. It can be discharged to the outside of the drawer. Through this structure, the overall air circulation of the drawer part is made more smoothly, and there is an advantage of effectively preventing stagnation of cold air in the drawer part.

In particular, the exhaust hole and the drawer opening for connecting the lifting device and the driving device may be covered when the lifting device is mounted, and thus the appearance may be improved. In addition, the exhaust hole covered by the lifting device may have a larger size to facilitate the discharge of cold air and prevent foreign matter from being trapped.

In addition, the rear surface of the door unit and the front surface of the drawer unit have a somewhat spaced coupling structure, and thus, cold air flowing from the rear to the front is moved downward from the rear surface of the door unit along the rear surface of the door unit and the front surface of the drawer unit. Therefore, there is an advantage that cooling of the front area of the drawer can be performed more efficiently.

In addition, an air guide part may be formed on the rear surface of the door part. The air guide portion may extend in a horizontal direction at a position higher than the upper end of the drawer portion and guide cold air supplied from the rear portion to naturally move downward along the rear surface of the door portion. Therefore, the cold air flowing to the rear of the door is guided downward along the space between the rear of the door and the front of the drawer, and the cool air can be more effectively introduced into the drawer through the air hole. have.

In particular, the air guide portion is formed on the outer surface of the door light that illuminates the drawer portion, thereby enabling the lighting of the drawer portion through the door light and circulation of cool air inside the drawer portion at the same time.

In addition, the height of the basket seated in the lifting device may be formed higher than the rear end of the drawer part. In addition, as the cool air discharged from the rear of the drawer flows forward, it hits the upper end of the basket and flows downward along the wall surface of the basket. Therefore, when the basket is mounted, the cool air can be smoothly supplied to the rear area of the basket where the inflow of cool air may be weak, so that the cool air flow inside the drawer part becomes more smooth, and the temperature distribution inside the drawer part There is an advantage to be uniform.

In particular, in the rear space behind the lifting device, when the cool air supplied from the rear flows along the upper surface of the drawer cover while being shielded by the drawer cover, it flows beyond the basket, so that the cold air in the rear area of the basket Although it is difficult to inflow, the upper end of the basket protrudes higher than the upper surface of the drawer cover and induces cool air to flow downward along the rear surface of the basket, so that the flow of cold air is effectively performed even when the drawer cover is mounted. I can.

In addition, since a basket hole is formed along the circumference at the top of the basket, some of the cold air supplied from the rear may pass through the basket hole and flow into the basket, so that cold air supply to both the inside and outside of the basket is It is possible, and there is an advantage that evenly supplying cold air to the entire inside of the drawer part is possible.

1 is a front view of a refrigerator according to an embodiment of the present invention.
2 is a cross-sectional view schematically illustrating an elevated state of a lower drawer door of a refrigerator according to an embodiment of the present invention.
3 is a perspective view of the lower drawer door viewed from the rear.
4 is a partial cross-sectional view showing a lower structure of the refrigerator.
5 is a partially cut-away perspective view showing the lower structure of the refrigerator.
Figure 6 is a view showing a state in which the basket is separated from the drawer part.
7 is an exploded perspective view of the lower drawer door, viewed from the front, in which the drawer part and the door part are separated.
8 is an exploded perspective view of a state in which the lifting device is separated from the drawer door.
9 is a rear view of the door part.
10 is a rear perspective view of the door part with the door cover removed.
11 is a cross-sectional view showing a connection state between the driving device and the lifting device.
12 is a front perspective view of the driving device.
13 is a rear perspective view showing the internal structure of the driving device.
14 is a partially enlarged view showing a structure in which power is transmitted to a screw of the driving device.
15 is an exploded perspective view of the drawer part.
16 is a perspective view of the drawer body of the drawer part.
17 is a perspective view of a front plate of the drawer part.
18 is a perspective view of a lifting device according to an embodiment of the present invention.
19 is a view showing a state in which the upper frame of the lifting device is raised.
20 is a partially enlarged view showing a state in which the lifting device is coupled to the lever of the present invention.
21 is a perspective view of the lower drawer door in a closed state.
22 is a perspective view of the lower drawer door fully open.
23 is a cross-sectional view of the drawer door in a state in which the basket of the lower drawer door is completely lowered.
FIG. 24 is a perspective view showing states of the driving device and the lifting device in the state of FIG. 23.
25 is a cross-sectional view of the drawer door in a state in which the basket of the lower drawer door is fully raised.
26 is a perspective view showing the state of the driving device and the lifting device in the state of FIG. 25;
27 is a cross-sectional view showing a state in which cool air flows in a storage compartment when the drawer door is closed.
FIG. 28 is an enlarged view of part A of FIG. 27.
29 is an enlarged view of part B of FIG. 27.
30 is an exploded perspective view of a drawer according to another embodiment of the present invention.
31 is a perspective view of a front plate of a drawer according to another embodiment of the present invention.
32 is a partial perspective view showing a state in which cold air is introduced into the drawer according to another embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to elements of each drawing, it should be noted that the same elements are assigned the same numerals as possible even if they are indicated on different drawings. In addition, in describing an embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In addition, in describing the constituent elements of the embodiment of the present invention, terms such as first, second, A, B, (a), (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected or connected to that other component, but another component between each component It should be understood that may be “connected”, “coupled” or “connected”.

1 is a front view of a refrigerator according to an embodiment of the present invention. And, FIG. 2 is a cross-sectional view schematically illustrating an elevated state of a lower drawer door of a refrigerator according to an embodiment of the present invention. And, Figure 3 is a perspective view of the lower drawer door viewed from the rear.

As shown, the refrigerator 1 may have an external shape by a cabinet 10 forming a storage space and a door 2 shielding the opened front surface of the cabinet 10.

The storage space inside the cabinet 10 may be divided into a plurality of spaces. For example, the upper space 11 of the cabinet 10 may be divided into a refrigerating chamber, and the lower space 12 may be divided into a freezing chamber. Of course, the upper space and the lower space may be divided into separate spaces maintained at different temperatures rather than a refrigerating compartment or a freezing compartment, and may be referred to as an upper space and a lower space.

The door 2 may include a rotating door 20 that opens and closes the upper space by rotation, and a drawer door 30 that opens and closes the lower space by drawing in/out. The lower space may be divided up and down again, and the drawer door 30 may include an upper drawer door 30a and a lower drawer door 30b.

In addition, the rotating door 20 and the drawer door 30 are formed of a metal material to form an exterior exposed to the front.

The present invention has been described on the basis of a refrigerator in which the rotating door 20 and the drawer door 30 are disposed together, but the present invention is not limited thereto, and all types of refrigerators provided with a drawer-type door Will be applicable. In addition, the rotary door 20 may be provided at an upper portion and may be referred to as an upper door, and the drawer door 30 may be provided at a lower portion to be referred to as a lower door.

A display 21 may be provided on one front side of the rotating door 20, and the display 21 may include a structure of a liquid crystal display or an 88-segment structure.

In addition, when the exterior of the door 2 is formed of a metal material, the display 21 may be formed such that a plurality of fine holes are perforated to display information by transmitted light.

In addition, an operation unit 22 capable of operating automatic rotation or withdrawal of the upper door 2 or the lower door 2 may be provided on one side of the rotary door 20.

The manipulation unit 22 may be provided integrally with the display 21 and may be operated by a touch method or a button method. The manipulation unit 22 may input/operate a command for the overall operation of the refrigerator 1, and may operate the drawer door 30 to move in/out or to move the drawer door 30 up or down.

An operation unit 301 may also be provided on the drawer door 30. The operation unit 301 may be provided on one side of the lower drawer door 30b positioned at the bottom of the drawer doors 30, and the operation unit 301 may be configured in a touch or button manner. Of course, the manipulation unit 301 may be configured as a sensor that detects the user's proximity or movement, or may be configured to input manipulation by 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 30b to output a virtual switch by irradiating an image on the bottom surface and input manipulation in a manner that allows the user to approach the area. It could be configured.

In order to store food stored in the lower drawer door 30b, the lower drawer door 30b may be pulled forward, and then the basket 36 inside the lower drawer door 30b may be operated to move up and down.

Hereinafter, unless otherwise specified, the lower drawer door 30b will be referred to as a drawer door or door. In addition, the embodiment of the present invention is not limited to the number and shape of drawer doors, and may be applied to all refrigerators provided with a drawer-type door in a lower storage space.

The basket 36 may be accommodated in a form in which the door 30 can be elevated. The basket 36 may have a predetermined height. Since the basket 36 is seated in the lifting device 80 to be described later, when the lifting device 80 is raised, the height of the basket 36 may be added to the height of the lifting device 80 to be exposed to the outside. . Therefore, when the lifting device 80 is raised, it may be located at a point where it is very easy for a user to access the basket 36 or lift the basket 36.

In particular, when the lifting device is completely lowered, that is, in a state in which the lower drawer door 30 is closed, the basket 36 has a set height higher than the upper end of the drawer 32 and the upper surface of the drawer cover 37 ( H) can be formed to a height that can protrude upward.

The circumference of the basket 36 has a shape protruding outward from the inside of the drawer part 32, so that the user can easily hold and lift the basket 36. In addition, cold air supplied from the rear may hit the protruding circumference of the basket 36 and may be directed into the drawer 32.

The basket 36 protrudes above the drawer part 32 by a set height (H), but may protrude to a height that does not interfere with the configuration of the inside of the cabinet during the process of pulling out the lower drawer door 30. have. In addition, since the cold air supplied from the rear is not completely shielded, some of the cold air may flow upward beyond the basket 36. For this reason, it is preferable that the set height H is about 0.5cmm to 5cmm.

Further, a basket hole 363 may be formed at an upper end of the circumferential surface of the basket 36. The basket hole 363 may allow some of the cold air passing above the drawer 32 to flow into the basket 36 or pass through the basket 36. A plurality of basket holes 363 may be formed continuously along the upper circumference of the basket 36. In addition, at least a portion of the basket hole 363 may be located at a position higher than the upper end of the drawer part 32 or the upper end of the drawer cover 37, so that cold air can be easily introduced. Meanwhile, the basket hole 363 may be formed on a portion of the basket 36 rather than the entire surface, and at least a rear surface may be formed.

In addition, a basket upper decor 362 may be provided on an upper end of the basket 36. The basket upper decor 362 may be exposed to the outside of the drawer part 32 and may be formed along the upper circumference of the basket 36. In addition, the basket upper decor 362 may protrude outward and be used as a handle.

The door 30 may be automatically pulled back and forth by a pull-out motor 14 and pinion 141 provided in the cabinet 10 and a pull-out rack 34 provided on the lower surface of the door 30. have.

In addition, the basket 36 inside the door 30 may be raised and lowered by the driving device 40 and the lifting device 80 provided in the lower drawer door 30b.

The door 30 may include a door part 31 for opening and closing the storage space, and a drawer part 32 that is coupled to the rear surface of the door part 31 and is pulled in and out with the door part 31. .

The door part 31 may be exposed to the outside of the cabinet 10 to form the exterior of the refrigerator 1, and the drawer part 32 is disposed inside the cabinet 10 to form a storage space. can do. In addition, the door portion 31 and the drawer portion 32 may be combined with each other to be withdrawn in and out of the front and rear directions.

The drawer part 32 is always located on the rear surface of the door part 31, and may form a space in which food or basket 36 for storage is accommodated. The drawer part 32 may form an upper storage space, and the inner and outer surfaces of the drawer part 32 may be formed by a plurality of plates (391,392,393 in FIG. 15).

The plurality of plates 391, 392, 393 may be made of a metal material such as stainless steel, and are provided inside as well as outside of the drawer 32 so that the entire drawer 32 has a texture such as stainless steel or stainless steel. Can be formed.

In a state in which the door 30 is retracted, a machine room 3 in which a compressor and a condenser constituting a refrigeration cycle may be disposed behind the door 30. Accordingly, the rear part of the drawer part 32 may have an upper end protruding more than a lower end, and the rear part of the drawer part 32 may include an inclined surface 321.

In addition, draw-out rails (33 in FIG. 7) that can guide the draw-out of the door 30 may be provided on both side surfaces of the drawer part 32. The door 30 may be mounted to the cabinet 10 so as to be able to be withdrawn and inserted by the withdrawal rail 33. The lead-in/out rail 33 may be shielded by an outer side plate 391 so as not to be exposed to the outside. The draw-out rail 33 may be configured in a rail structure that can be extended in multiple stages.

A pull-out rack 34 may be provided on the lower surface of the drawer part 32. The draw-out rack 34 may be disposed on both sides, and is connected with the drive of the draw-out motor 14 mounted on the cabinet 10 to enable automatic draw-out of the door 30. That is, when the operation unit 22 and 301 inputs an operation, the withdrawal motor 14 is driven so that the door 30 can be withdrawn according to the movement of the withdrawal rack 34. At this time, the door 30 can be stably pulled in and out by the pull-out rail 33.

Of course, the drawer part 32 may not be provided with a draw-out rack 34, and the user is configured to directly draw in/out the door 30 by holding and pushing or pulling one side of the door part 31. It will be possible.

Meanwhile, the inside of the drawer part 32 may be divided into a front space (S1 in FIG. 23) and a rear space (S2 in further 23). The front space S1 may include a lifting device 80 that is moved up and down, and a basket 36 that is seated in the lifting device 80 and lifted together with the lifting device 80.

In addition, when the door 30 is withdrawn, the entire drawer unit 32 cannot be pulled out of the storage space due to the restriction of the pulling distance of the door 30, and at least the front space S1 is It is drawn out of the storage space and all or part of the rear space S2 is located inside the storage space inside the cabinet 10.

In such a structure, the withdrawal distance of the door 30 may be limited by the draw-out rack 34 or the draw-out rail 33, and the longer the draw-out distance is applied to the door 30 in the withdrawn state. This is because it is difficult to maintain a stable state due to an increase in the losing moment, and deformation or damage of the draw-out rail 33 or the draw-out rack 34 may be caused.

The inside of the front space (S1) is accommodated in the lifting device 80 and the basket 36, the lifting device 80 is raised in the vertical direction, food or basket 36 seated in the lifting device 80 ) Can be raised and lowered together. In addition, the lifting device 80 may be provided under the basket 36, and when the basket 36 is mounted, the lifting device 80 may be covered by the basket 36, and thus Any configuration of the lifting device 80 is not exposed to the outside.

A separate drawer cover 37 may be provided in the rear space S2. The front space S1 and the rear space S2 may be partitioned by the drawer cover 37. When the drawer cover 37 is mounted, the front and upper surfaces of the rear space S2 are shielded so that the unused space is not exposed to the outside.

By attaching the drawer cover 37, the rear space S2 is covered when the door 30 is withdrawn, and only the front space S1 is exposed when the door 30 is pulled out, thereby providing a cleaner appearance. It will be able to provide. In addition, the remaining space except for the space in which the lifting device 80 and the basket 36 are mounted may be covered so that a problem such as a food dropping or a product being caught in a gap during lifting may not occur.

Meanwhile, a door light 318 may be provided on the rear surface of the door part 31. The door light 318 is to illuminate the inside of the drawer part 32, and may be positioned above the drawer part 32.

The door light 318 may be long disposed in the horizontal direction from the left to the right of the rear surface of the door 30. The light irradiated from the door light 318 is configured to face the inside of the door 30, particularly the drawer 32, and the drawer 32 when the door 30 is pulled out and opened Will reveal the inside of. Inside the door light 318, a plurality of LEDs 318a may be disposed to extend in the longitudinal direction of the door light 318. Accordingly, the entire interior of the drawer 32 can be evenly illuminated.

In addition, an air guide part 318b may be formed on an outer surface of the door light 318. The air guide part 318b may form at least a part of a case that forms the exterior of the door light 318 and forms a surface exposed to the rear surface of the door 30.

The air guide part 318b may be formed to be inclined or rounded toward the front of the door 30 as it goes downward. Accordingly, the cold air flowing from the rear to the front may be guided by the air guide part 318b to the rear surface of the door part 31, that is, between the door part 31 and the drawer part 32.

To this end, the door light 318, that is, the air guide part 318b, may be formed at a height corresponding to the upper end of the basket 36 or at a slightly higher position, and thus forward past the basket 36 Flowing cold air may be guided between the rear surface of the door unit 31 and the front surface of the drawer unit 32.

Of course, the door light 318 is not provided, and the same shape as the air guide part 318b is formed on the rear surface of the door part 31 corresponding to the position where the door light 318 is mounted, so that the drawer It would also be possible to guide cold air to the front of the part 32.

Meanwhile, cold air is supplied into the storage space 12 in which the drawer unit 32 is accommodated, and the food inside the drawer unit 32 is stored at a low temperature by supplying cool air. In particular, the inner and outer surfaces of the drawer part 32 may be formed by plates 391, 932, and 393 made of a metal material. Therefore, in order to prevent frost or ice from occurring and growing on the inner and outer surfaces of the drawer part 32, there is a need for a structure in which cold air is not stagnated and is evenly supplied to the inside of the drawer part 32.

Hereinafter, a structure of a cool air flow inside the storage space 12 will be described with reference to the drawings.

4 is a partial cross-sectional view showing a lower structure of the refrigerator. And, FIG. 5 is a partially cut-away perspective view showing the lower structure of the refrigerator.

As shown, the cabinet 10 may be composed of an outer case 101 and an inner case 102, and an insulating material 103 is filled between the outer case 101 and the inner case 102 The storage space 12 is insulated. In addition, the door 30 may also be insulated by the out plate 311 of the door 30 and the door liner 314 and an insulating material 312 provided therebetween.

The storage space 12 may be divided up and down by a barrier 121. The barrier 121 may connect the left and right sides of the storage space 12 at the front end of the storage space 12 and may contact the upper and lower doors 30. Accordingly, one storage space 12 may be divided into a plurality of units and used.

In addition, a grill pan 16 may be provided inside the storage space 12. The grill fan 16 may be formed to form at least a part of the rear wall of the storage space 12 and may form a heat exchange space 131 in which the evaporator 13 is accommodated. An evaporator 13 may be provided at the rear of the grill pan 16, and the cold air generated by the evaporator 13 passes through the cold air outlet 162 formed in the grill pan 16. ) It is supplied to the inside, is recovered through the cold air intake unit 163 and can be heat-exchanged again by the evaporator 13. In addition, a flow path 161 may be formed in the grill fan 16 between the cold air outlet 162 and the blowing fan 164.

The cold air discharge port 162 is located at the rear of the drawer part 32 and may be formed at a higher position than the upper end of the drawer part 32. In addition, the height of the cold air outlet 162 may be formed to a height corresponding to the door light 318, that is, the air guide part 318b. Therefore, the cold air discharged through the cold air discharge port 162 passes through the upper surface of the drawer 32 and the upper end of the basket 36 to the rear surface of the door part 31 where the air guide part 318b is formed. Can be supplied.

The cold air discharged by the cold air outlet 162 may be supplied to the front space partitioned by the drawer cover 37, and the cold air is supplied to the inside and outside, and the front and rear sides based on the basket 36 After cooling the basket 36 three-dimensionally, it may be discharged to the outside of the drawer part 32. The flow path of the cold air and the structure for the flow of cold air will be described in more detail below.

On the other hand, the cold air flowing to the outside of the drawer part 32 flows along the inner surface of the drawer part 32 and the storage space 12, that is, the space between the inner case 102 and the drawer part ( The evaporator 13 may be returned to the space in which the evaporator 13 is accommodated through the cold air suction unit 163 extending in the space between the rear surface of 32) and the inner case 102. In addition, cooling air may be circulated in the storage space 12 by driving the blower fan 164 provided at the rear of the grill fan 16.

Hereinafter, the coupling structure of the door 30 will be described in more detail with reference to the drawings.

Figure 6 is a view showing a state in which the basket is separated from the drawer part. 7 is an exploded perspective view of the lower drawer door as viewed from the front in which the drawer part and the door part are separated. And, Figure 8 is an exploded perspective view of a state in which the lifting device is separated from the drawer door.

As shown in the drawing, a lifting device is disposed inside the drawer part 32, and a basket 36 may be seated on the upper surface of the lifting device 80. The basket 36 may be simply lifted from the drawer as needed, and may be lifted together according to the lifting of the lifting device 80.

And, in order to utilize the entire space inside the drawer part 32, the lifting device 80 inside the drawer part 32 can be simply detachably mounted, and the lifting device 80 and the drawer cover 37 By separating all of them, the entire inner space of the drawer 32 may be utilized.

The appearance of the inner and outer surfaces of the drawer unit 32 may be formed by plates 391, 392, and 393, and shield components mounted on the drawer unit 32 so that the outer and inner appearances can be clearly seen. can do. The plates 391, 392, and 393 may be formed in plural, and may be formed of a stainless material to provide a more luxurious and clean appearance.

In particular, a plurality of plate air holes 393e are formed in the front plate 393 forming the front surface of the drawer 32, and can be seen in a state in which the basket 36 is removed as shown in FIG. have.

Meanwhile, the door part 31 and the drawer part 32 constituting the door 30 may have a structure that can be separated and coupled to each other. Assembly workability and serviceability may be improved through the detachable structure of the door part 31 and the drawer part 32.

The rear surface of the door part 31 and the front surface 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 device 80 It can be configured to provide.

The driving device 40 for lifting the lifting device 80 may be disposed on the door part 31, and the door part 31 and the drawer part 32 may be selectively connected.

In particular, the driving device 40 provided in the door part 31 may include components operated by input of power and components for transmitting power to the lifting device 80. Accordingly, when the service of the driving device 40 is required, the door part 31 can be separated to take action, and only the door part 31 can be replaced to take a simple action.

The door part 31 and the drawer part 32 may be coupled by a pair of door frames 316 provided on both sides. The door frame 316 may be configured to be connected to the rear surface of the door part 31 and both sides of the drawer part 32, respectively.

Further, the draw-out rails 22 may be provided at lower ends of both sides of the drawer part 32 to which the door frame 316 is coupled. In addition, a rail bracket 331 is provided on the draw-out rail 33, and the rail bracket 331 may extend from one side of the draw-out rail 33 to both sides of the drawer part 32. In addition, the rail bracket 331 may be fixedly coupled to the interior wall of the cabinet. Accordingly, the drawer unit 32, that is, the door 30 may be mounted to the cabinet 10 so as to be retractable by the draw-out rail 33.

When the door part 31 and the drawer part 32 are combined, a part of the lifting device 80 is exposed on the front of the drawer part 32 so that the driving device 40 and the lifting device 80 can be connected. A drawer opening 35 may be formed.

A scissor-side connection part 842, which is a rotation axis of the lifting device 80, may be exposed inside the drawer opening 35. Accordingly, when the scissor side connection part 842 is connected to the driving device 40, the lifting device 80 may be in an operable state.

In addition, the drawer openings 35 may be formed at both front and left ends of the left and right drawer portions 32. In addition, between the drawer openings 35, a plurality of exhaust holes 381 may be formed to allow air to flow inside and outside the drawer part 32. The exhaust hole 381 may be formed lower than the height of the lifting device 80, and thus, the drawer opening 35 and the exhaust hole 381 may be covered when the lifting device 80 is mounted. .

On the other hand, the lifting device 80 has a structure that can be separated from the drawer 32 according to the user's operation. At this time, the scissor side connection part 842 of the lifting device 80 connected to each other and the lever side connection part 422 of the driving device 40 are first separated, and then the lifting device 80 is removed from the drawer part 32. Will be lifted.

The door part 31 is formed to substantially open and close the storage space of the cabinet 10 and at the same time form the front exterior of the refrigerator 1.

The door part 31 includes an outer case 311 forming a part of the front and circumferential surfaces, a door liner 314 forming a rear surface, an upper decor 313a and a lower decor 313b forming the upper and lower surfaces. The appearance can be formed by this. In addition, an insulating material 312 may be filled inside the door part 31 between the outer case 311 and the door liner 314.

9 is a rear view of the door part. And, Figure 10 is a rear perspective view of the door portion of the door cover removed. And, Figure 11 is a cross-sectional view showing a connection state of the driving device and the lifting device.

As shown, a driving device 40 for operating the lifting device 80 may be provided inside the door part 31. The driving device 40 is disposed inside the door part 31, but is not buried in the heat insulating material, but is provided inside the space formed by the door liner 314, and the door cover 315 It may be configured so as not to be exposed to the outside by being shielded by.

In addition, the door liner 314 is formed in a shape corresponding to the shape of the driving device 40 and the door light 318 to provide a space in which the driving device 80 and the door light 318 are mounted. I can.

Meanwhile, cover openings 315a may be formed at both sides of the lower end of the door cover 315. The cover opening 315a is formed so that the lever-side connection part 422 of the lever 42, which is a component of the driving device 40, is exposed, and has a size that does not interfere with rotation of the lever 42 Can be.

In addition, the lever-side connection part 422 may be positioned at a position where the cover opening 315a faces the drawer opening 35. Therefore, when the door part 31 and the drawer part 32 are combined, the cover opening 315a and the drawer opening 35 can communicate with each other, and thus, the cover opening 315a and the drawer opening Through 35, the lever-side connection part 422 and the scissor-side connection part 842 of the lifting device 80 may be coupled.

On the other hand, in the center of the lower end of the door cover 315, a cable hole 315b through which cables connected to electric components such as the driving device 40 provided in the door part 31 and the door light 318 enter and exit is further provided. Can be formed. Wires entering and leaving through the cable hole 315e may pass under the drawer 32 and be connected to the cabinet 10.

A door gasket 317 may be provided along the rear circumference of the door part 31, and when the door 30 is closed, the door gasket 317 may be sealed in contact with the front of the cabinet 10. have.

The driving device 40 may be shielded by the door cover 315 and disposed inside the door part 31. The driving device 40 is connected to the lifting device 80, and the power of the driving device 40 may be transmitted to the lifting device 80. At this time, the driving device 40 simultaneously transmits power to both the left and right sides of the lifting device 80 so that the lifting device 80 is not inclined or biased to one side under any circumstances, and the left and right sides are horizontally elevated and lowered. You can do it.

The driving device 40 includes a motor assembly 60, a pair of screw units 50 disposed on both sides of the motor assembly 60, and a pair of levers connected to each of the screw units 50 (42) may be included. In addition, the screw unit 50 may include a screw 52 and a screw holder 56 which is penetrated by the screw 52 and is raised and lowered along the screw unit 50.

Meanwhile, the lever 42 has a lever-side connection part 422 formed at one end of the lever extension part 421, and the lever-side connection part 422 is rotatably fixed to the rear surface of the door part 31. Further, a lever hole 423 through which the holder fastening member 562 is fastened may be formed at the other end of the lever extension part 421.

The lever hole 423 is formed in a long hole shape, guides the movement of the holder fastening member 564, and allows the holder fastening member 564 to be fastened to the screw holder 56 at the same time. Accordingly, the lever 42 is rotated by the screw holder 56 that is raised and lowered when the screw 52 is rotated. The driving device 40 will be described in more detail below.

Hereinafter, the driving device 40 will be described in more detail with reference to the drawings.

12 is a front perspective view of the driving device. And, Figure 13 is a rear perspective view showing the internal structure of the driving device. And, Figure 14 is a partial enlarged view showing a structure in which power is transmitted to the screw of the driving device.

As shown, the motor assembly 60 may be located in the center portion in the left and right direction of the door portion 31. Further, it may be configured to enable the operation of the screw units 50 and 50a and the lever 42 on both sides by driving the motor assembly 60 including one driving motor 64.

Particularly, the motor assembly 60 may adjust the amount of deceleration and transmitted force through a combination of a plurality of gears.

In addition, the motor assembly 60 has a structure in which the drive motor 64 and gears are arranged vertically in order to minimize a space that is depressed when mounted on the door part 31, and in particular, the motor assembly 60 It may be formed to widen the width in the left and right directions to minimize the thickness of the material and to minimize the thickness in the front and rear directions.

In addition, the drive motor 64 constituting the motor assembly 60 may protrude toward the drawer part 32 to minimize a depression depth of the door part 31 to ensure thermal insulation performance.

The drive motor 64 provides power for the lifting of the lifting device 80 and may be configured to rotate forward and backward. Accordingly, when the lifting signal of the lifting device 80 is input, it is rotated forward and backward, thereby providing power for lifting the lifting device 80. In addition, the drive motor 64 may be stopped when a load of the driving motor 64 or a stop signal is input by detection of a sensor.

The motor assembly 60 includes a motor case 61 in which the driving motor 64 is installed, and a motor cover 62 coupled to the motor case 61 and covering the driving motor 64. I can.

The rotation axis of the drive motor 64 may protrude from the motor case 61 toward the opposite side of the motor cover 62. In addition, the motor assembly 60 may further include a power transmission unit for transmitting the power of the driving motor 64. The power transmission unit may be located on the opposite side of the driving motor 64 with respect to the motor case 61.

In addition, the power transmission unit may be formed of a combination of a plurality of gears, and may be shielded by a cover member 66 mounted on the opposite side of the drive motor 64.

The power transmission unit may include a driving gear 651 connected to the shaft of the driving motor 64 passing through the motor case 61. The power transmission unit may further include a first transmission gear 652 meshed with the driving gear 651 from a lower side of the driving gear 651.

The first transmission gear 652 may be, for example, a multi-stage gear. As an example, the first transmission gear 652 includes a first gear 652a meshed with the driving gear 651 and a second gear 652b having a diameter smaller than that of the first gear 652a. Can include. Each of the first gear 652a and the second gear 652b may be a spur gear.

The power transmission unit may further include a second transmission gear 653 meshing with the first transmission gear 652. The second transmission gear 653 may mesh with the first transmission gear 652 from a lower side of the first transmission gear 652. The second transmission gear 653 includes a first gear 653a meshing with the second gear 652a of the first transmission gear 652, and a first gear having a larger diameter than the first gear 653a. It may include 2 gears 653b.

Each of the first gear 653a and the second gear 653b of the second transmission gear 653 may be a spur gear. In addition, the second gear 653b of the second transmission gear 653 may be located below the first gear 652a of the first transmission gear 652. Accordingly, an increase in the front and rear width of the driving device 60 can be prevented by the first transmission gear 652 and the second transmission gear 653.

The power transmission unit may further include a third transmission gear 654 meshed with the second transmission gear 653. The third transmission gear 654 may mesh with the second gear 653b under the second gear 653b of the second transmission gear 653. The third transmission gear 654 may be a spur gear. A portion of the third transmission gear 654 may be disposed to overlap the second transmission gear 653 in the front-rear direction.

A gear shaft for rotatably supporting the plurality of transmission gears may be provided in the motor case 61.

The power transmission unit may include a pair of cross gears 655 and 656 meshed with the third transmission gear 654. The pair of crossover gears 655 and 656 are arranged to be spaced apart from each other in the left and right direction, and the rotation center is lower than the rotation center of the third transmission gear 654 to be meshed with the third transmission gear 654. have.

Each of the crossed gears (655, 656) is a spur gear (655a, 656a) and a helical gear form so that the cross gears (655, 656) can mesh with the third transmission gear (654). It may include first helical gear units 655b and 656b.

In addition, the rotation center lines of the cross gears 655 and 656 spaced apart from each other may extend horizontally to each other.

The power transmission unit may further include a pair of second helical gear units 657 and 657a meshing with each of the cross gears 655 and 656.

The second helical gear parts 657 and 657a may mesh with the first helical gear parts 655b and 656b. The rotation center lines of the second helical gear units 657 and 657a may be disposed to cross the rotation center lines of the cross gears 655 and 656. Accordingly, the first helical gear units 655b and 656b and the second helical gear units 657 and 657a are intersected with each other, and may be configured to be engaged with each other to transmit rotation.

The rotation center lines of the cross gears 655 and 656 may extend in the front-rear direction, and the rotation center lines of the second helical gear units 657 and 657a may extend in the vertical direction. Further, the rotation center lines of the second helical gear units 657 and 657a disposed on both left and right sides may be inclined in a direction that is further away from each other toward the upper side.

As described above, the use of a pair of crossed helical gears has the advantage that the power transmission direction can be easily switched and the structure for power transmission becomes compact. In particular, even when a large force is transmitted for the lifting of the lifting device 80, a large noise is not generated.

The pair of screw units 50 and 50a may be disposed on both left and right sides of the motor assembly 60.

The pair of screw units (50, 50a) are disposed on both left and right sides of the inside of the door part (31), and the pair of screw units (50, 50a) differ only in their mounting positions, and their structure and shape Are the same.

Power of the driving motor 64 may be transmitted from the lower side of the screw units 50 and 50a.

The screw units 50 and 50a on both sides may be formed to be symmetrical with respect to the motor assembly 60. Accordingly, the motor assembly 60 may be disposed between the screw units 50 and 50a positioned on both sides, and the screw units 50 and 50a disposed on both sides are the distance between the top and bottom. Can be arranged to get closer and closer.

The screw units 50 and 50a may include screws 52 and 52a that are rotated by receiving power from the driving motor 64. The screws 52 and 52a may be inclined to extend in a vertical direction, with an upper end facing the outside and a lower end facing the outside.

The screws 52 and 52a may be connected to the second helical gear units 657 and 657a. That is, the screws 52 and 52a may be rotated together when the second helical gear units 657 and 657a are rotated.

For example, an insertion portion may be formed in the second helical gear portions 657 and 657a, and an accommodation groove in which the insertion portion is accommodated may be formed in the screw 52.

Accordingly, the screws 52 and 52a are also disposed to be symmetrical on both left and right sides with respect to the motor assembly 60, and may be disposed obliquely on the same center line as the center line of the second helical gear units 657 and 657a. . Accordingly, the screws 52 and 52a on both sides of the left and right sides have an arrangement that is farther away from each other as it goes upward.

The screw units 50 and 50a may further include screw holders 56 and 56a through which the screws 52 and 52a are coupled.

The screw holders 56 and 56a may be moved vertically along the screws 52 and 52a when the screws 52 and 52a are rotated. In addition, the lever 42 may be coupled to the screw holders 56 and 56a. When the screw holders 56 and 56a are moved, the lever 42 may be rotated.

In detail, a holder through hole 561 is formed in the center of the screw holders 56 and 56a. The holder through-hole 561 is formed to pass through the screw holders 56 and 56a, and is inserted and mounted so that the screws 52 and 52a pass through the holder through-hole 561. A thread coupled to the screw may be formed on the inner side of the holder through hole 561. Accordingly, when the screws 52 and 52a are rotated, the screw holders 56 and 56a are movable along the screws 52 and 52a.

In addition, guide holes 562 are formed on both left and right sides of the holder penetrating portion 561. The guide hole 562 is a portion through which the guide bars 53 and 54 to be described below pass, and the screw holders 56 and 56a may be moved along the guide bars 53 and 54.

The guide bars 53 and 54 may be formed in a round bar shape, and may be formed of a metal material to stably support the screw holders 56 and 56a.

A bearing is provided on the inner surface of the guide hole 562 to facilitate the movement of the screw holders 56 and 56a. Further, although not shown in detail, a sleeve-shaped lubricating member may be provided in the guide hole 562 through the guide bars 53 and 54. The lubricating member may be formed of engineering plastic or a material that reduces friction, thus making it easier to move the screw holders 56 and 56a and preventing noise from being generated. Of course, if necessary, the screw holders 56 and 56a themselves may be formed of an engineering plastic material.

Since a pair of the guide bars 53 and 54 are configured to pass through the guide hole 562, the screw holders 56 and 56a do not flow left and right, and a stable lift is possible. In particular, stable lifting is possible even in a situation where a heavy load is applied to drive the lifting device 80, and noise is not generated.

In addition, a magnet 563 may be provided in the screw holder 56a. As an example, a magnet mounting groove 563a into which a magnet is pressed may be formed in the screw holder 56a, and the magnet 563 may be inserted into the magnet mounting groove 563a.

The magnet 563 is for detecting the position of the screw holder 56a, and when the screw holder 56a is located at the lowest or upper end of the screws 52, 52a, a lift detection device to be described below. 90 will be able to detect this. That is, whether the magnet 563 mounted on the screw holder 56a is sensed, it is possible to determine the completion of the ascending and descending of the lifting device.

Further, although not shown in detail, a holder connector 562 may be mounted on the opposite side of the rear surface of the screw holder 56a on which the magnet 563 is provided, that is, the front surface of the screw holder.

The holder connector 562 is for connecting the lever 42 and the screw holders 56 and 56a, and may be fixedly mounted to the screw holders 56 and 56a. That is, the holder connector 562 may be coupled to the screw holders 56 and 56a while passing through the lever 42. The lever 42 may include a rectangular slot 426 so that the holder connector 562 does not interfere with the rotation of the lever 42.

Since the screw units 50 and 50a are disposed on both left and right sides, extension lines of the screws 52 and 52a on both left and right sides may cross outside of the driving device 40.

The lever 42 connects the screw holders 56 and 56a and the lifting device 80, and both ends may be coupled to the screw holders 56 and 56a and the lifting device 70, respectively.

The screw units 50 and 50a may further include a housing 51 accommodating the screws 52 and 52a.

The housing 51 forms an outer shape of the screw units 50 and 50a, and forms a space in which screws 52 and 52a and screw holders 56 and 56a can be accommodated, and is opened. The portion may be shielded by a cover member 66 to be described later.

The housing 51 may be formed by bending a plate-shaped metal material or may be formed of a plastic material.

The housing 51 may include a first accommodating portion 511 accommodating the screws 52 and 52a and a second accommodating portion 512 accommodating the second helical gear portions 657 and 657a. have.

The first accommodation part 511 and the second accommodation part 512 may be partitioned by a partition wall 513. The second accommodating part 512 is located below the first accommodating part 511.

Part of the crossover gears 655 and 656 may be accommodated in the second accommodating part 512. That is, the crossover gears 655 and 656 and the second helical gear parts 657 and 657a may be connected within the second receiving part 512.

The lower side of the screw 52, 52a penetrates the partition wall 513, and the second helical gear portions 657, 657a are coupled to the screws 52, 52a that have penetrated the partition wall 513 do.

One or more guide bars 53 and 54 for guiding the rise of the screw holders 56 and 56a may be provided in the housing 51. The one or more guide bars 53 and 54 extend in parallel with the screws 52 and 52a in a state spaced apart from the screws 52 and 52a.

A plurality of guide bars (53, 54) are provided in the housing (51) so that the screw holders (56, 56a) are not inclined to either right or left around the screws (52, 52a), the plurality of guides The screw 52 may be positioned between the bars 53 and 54.

The motor case 61 and the pair of housings 51 may be integrally formed. In addition, a single cover member 66 may cover the motor case 61 and the pair of housings 51.

That is, the cover member 66 is fastened to the motor case 61 to cover the power transmission unit, and is fastened to the pair of housings 51, the screw 52, 52a, the guide bar 53, 54), the screw holders 56 and 56a can be covered.

Of course, if necessary, the cover member 66 may be composed of a plurality of parts respectively shielding the power transmission unit and the screw units 50 and 50a to be configured to open and close each independently.

In the present embodiment, since the driving device 40 exists in the form of a single module, the driving device 40 is compact, so that the driving device 40 can be easily installed on the door part 31.

In addition, since a single cover member 66 covers the motor case 61 and the pair of housings 51 together, when the cover member 66 is separated, it is easily placed inside the power transmission unit or the housing 51. There is an advantage of being able to access, and service is easy.

Meanwhile, a lift detection device 90 may be provided in the screw unit 50a on one side of the screw units 50 and 50a on both left and right sides. The elevating detection device 90 is for determining whether the elevating device 80 has been elevated or not, and determines whether the elevating apparatus 80 has elevated or descended based on the operation of the driving device 40.

The lift detection device 90 may be mounted on the cover member 66 and may be vertically disposed along the screw unit 50a.

The lift detection device 90 may include a pair of detection sensors 92 and 93. As the detection sensors 92 and 93, a sensor that detects the magnet 563 may be used. The detection sensor may be a Hall sensor that detects the position of a magnet. Of course, other sensors or devices for sensing the magnet 563 may be provided in place of the Hall sensor as needed.

Hereinafter, the structure of the drawer part 32 will be described.

15 is an exploded perspective view of the drawer part. And, Figure 16 is a perspective view of the drawer body of the drawer. And, Figure 17 is a perspective view of the front plate of the drawer.

As shown, the drawer part 32 is provided on the inside of the drawer body 38 and the drawer body 38 forming the overall shape of the drawer part 32, the basket 36 and the food It may include a lifting device 80 capable of lifting and descending and a plurality of plates 391, 392, and 393 forming the inner exterior of the drawer part 32.

In detail, the drawer body 38 may be injection formed of a plastic material, and forms the overall shape of the drawer part 32. The drawer body 38 has a basket shape with an open top surface to form a food storage space therein. The rear surface of the drawer body 38 may be an inclined surface 321, so that interference with the machine room 3 may not occur.

The door frame 316 may be mounted on both sides of the drawer part 32. The door frame 316 may be mounted on both sides of the lower surface of the drawer part 32 or on the rail mounting part 382 together with the draw-out rail 33. In a state in which the door frame 316 is coupled to the drawer unit 32, the drawer unit 32 and the door unit 31 may be integrally coupled to each other so that the drawer unit 32 and the door unit 31 are combined with each other.

Rail mounting portions 382 on which draw-out rails 33 for guiding the draw-out of the drawer body 38 are mounted may be formed under both side surfaces of the drawer body 38. The rail mounting portion 382 extends from a front end to a rear end, and a space may be formed therein to accommodate the draw-out rail 33.

Meanwhile, air holes 393e and 383 and exhaust holes 381 may be formed on the front surface of the drawer part 32 to allow cool air to flow in and out of the drawer part 32.

In detail, in the front of the drawer body 38, a body air hole 383 serving as an inlet through which cool air flows into the drawer part 32 and the cool air inside the drawer part 32 is the drawer part 32. An exhaust hole 381 and a drawer opening 35 that flow out to the outside may be formed.

The main body air hole 383 may be formed in a region other than the lower end of the front of the drawer body 38 and may be positioned above the exhaust hole 381 and the drawer opening 35. The main body air hole 383 may extend from the upper end of the exhaust hole 381 and the drawer opening 35 to the upper end of the drawer body 38, and is greater than the exhaust hole 381 and the drawer opening 35 It can be formed in a large size. Accordingly, a large amount of cold air can be smoothly introduced into the drawer unit 32.

The main body air hole 383 may be formed to be long vertically, and a plurality of air holes 383 may be formed continuously in a horizontal direction. The plurality of main body air holes 383 may be spaced apart from each other, and the strength of the front portion of the drawer main body 38 may be maintained by a surface between the main body air holes 383.

In addition, drawer openings 35 may be formed at both ends of the lower front side of the drawer part 32. The drawer opening 35 is located at a position facing the cover opening 315a and may be formed in a shape corresponding to the cover opening 315a. That is, so as not to interfere with rotation of the scissor side connector 842 having a shape protruding from the rotation axis of the lifting device 80 to one side, the drawer opening 35 has a radius of the scissor side connector 842 It can be formed equal to or larger in size.

The drawer opening 35 forms a space between the scissor-side connection part 842 and, therefore, may serve as an outlet through which cold air inside the drawer part 32 is discharged to the outside of the drawer part 32. .

In addition, exhaust holes 381 may be formed between the drawer openings 35 on both sides. The exhaust hole 381 may be elongated in the vertical direction, and may extend from the lower end of the drawer 32 to the lower end of the main body air hole 383.

Both the exhaust hole 381 and the drawer opening 35 may be formed at a position lower than the upper end of the lifting device 80. That is, the exhaust hole 381 and the drawer opening 35 may be covered by the lifting device 80. Accordingly, even when the basket 36 is removed by the lifting device 80, the exhaust hole 381 and the drawer opening 35 are not exposed to the inside of the drawer part 32.

A plurality of reinforcing ribs 384 may be formed on both sides of the outer surface of the drawer body 38 to intersect in the horizontal and vertical direction. The reinforcing rib 384 increases the strength of the drawer body 38 itself so that the drawer body 38 is more resistant to the weight of the door increased by the provision of the driving device 40 and the lifting device 80. It can be made to keep its shape firmly.

In addition, the reinforcing ribs 384 may support the outer side plates 391 mounted on both side surfaces, and thus, the appearance of the drawer part 32 may be maintained firmly.

The drawer body 38 may be provided with a plurality of plates 391, 392, and 395 formed of a plate-like metal material such as stainless steel to form at least a part of the interior and exterior of the drawer body 38.

In detail, outer side plates 391 may be provided on both left and right side surfaces outside the drawer body 38. The outer side plates 391 are mounted on both left and right sides of the drawer body 38 to form the exterior of both sides, and in particular, the door frame 316 and the draw-out rails mounted on both sides of the drawer body 38 ( 33) It can be prevented from being exposed to the outside.

The upper end of the outer side plate 391 is bent inward, and may be seated on the side stepped portions 386 recessed at the upper ends of both side surfaces of the drawer body 38. Thus, it is possible to stably fix the outer side plate 391.

Inner side plates 392 may be provided on both left and right sides of the drawer body 38 inside. The inner side plate 392 is mounted on both left and right side surfaces of the drawer body 38 and may form both left and right side surfaces of the drawer body 38.

A front plate 393 may be provided on an inner front surface of the drawer body 38. The front plate 393 may form an inner front surface of the drawer body 38.

The entire inner surface of the drawer body 38 may be formed by the inner side plate 392 and the front plate 393, and the inner surface of the drawer body 38 may provide a metallic texture.

Therefore, the storage space inside the drawer 32 may have a metallic texture as a whole, and the food stored therein can be stored coldly in a more even area as a whole, as well as visually excellent cooling performance and storage performance for the user. Can provide.

Meanwhile, referring to FIG. 17, looking in more detail with respect to the front plate 393, the front plate 393 is formed in a metal plate shape such as stainless steel, and can shield the inner front surface of the drawer body 38. It is formed in the size that there is.

Further, a plate rim 393a vertically bent along the circumference of the front plate 393 may be formed, and a plate fastening portion 393b may be formed on the plate rim 393a. Accordingly, the plate rim 393a is closely mounted on the inner front surface of the drawer body 38, and the front plate 393 may be fixedly mounted by fastening a screw to the plate fastening part 393b.

Further, a drawer opening cutout 393c and an exhaust hole cutout 393d may be formed at a lower end of the front plate 393. The drawer opening cutout 393c may be formed at a position corresponding to the drawer opening 35, and may be cut upward from the lower end of the front plate 393. In addition, the exhaust hole cutout 393d may also be formed at a position corresponding to the exhaust hole 381, and may be cut upward from the lower end of the front plate 393. Accordingly, when the front plate 393 is mounted, the drawer opening 35 and the exhaust hole 381 communicate with the drawer opening cutout 393c and the exhaust hole cutout 393d, respectively, and the drawer part 32 ) It can be an outlet for the cold air inside.

Meanwhile, a plurality of plate air holes 393e may be formed in a region extending from the upper end of the drawer opening cutout 393c and the exhaust hole cutout 393d to the upper end of the front plate 393. The plate air holes 393e are formed over a surface of the front plate 393 except for a part of the circumference of the front plate 393, and a plurality of the plate air holes 393e may be arranged in a uniform arrangement.

The plate air hole 393e is formed in a circular shape having a small diameter, and the front plate 393 may have the same shape as a perforated plate by the plate air hole 393e.

The plate air hole 393e may be formed at least in a region corresponding to a region in which the body air hole 383 is formed. Further, the plate air hole 393e may have a size significantly smaller than that of the main body air hole 383. Accordingly, it is possible to prevent food or objects in the drawer part 32 from being removed through the air holes 393e and 383.

The plate air hole 393e may be formed to have a significantly smaller size than the main body air hole 383. A plurality of plate air holes 393e may be disposed inside the main body air hole 383. Accordingly, although the main body air hole 383 is covered by the front plate 393, cold air can be introduced through the plate air hole 393e.

That is, in a state in which the drawer part 32 is coupled with the door part 31, the main body air hole 383 is not exposed by the front plate 393, and the plate air hole 393e is It may be exposed to the inside of the drawer part 32.

The plate air hole 393e and the main body air hole 383 have a structure in communication with each other, so that the cold air flowing between the door part 31 and the drawer part 32 is the main body air hole 383 and the plate It may flow into the drawer part 32 through the air hole 393e.

On the other hand, the drawer cover 37 is bent at the upper end of the cover front portion 371 and the cover front portion 371 partitioning the inside of the drawer body 38 into a front space (S1) and a rear space (S2). And, it may include a cover upper surface portion 372 shielding the upper surface of the rear space (S2).

That is, when the drawer cover 37 is mounted, only the front space S1 in which the lifting device 80 is disposed may be exposed inside the drawer body 38, and the rear space S2 is the drawer. It can be shielded by the cover 37.

The lower end of the cover front part 371 is coupled to a lower fixing part 385b formed on the bottom surface of the drawer body 38, and the rear end of the cover upper surface part 372 is an upper end formed at the rear upper end of the drawer body. It may be coupled to the fixing part 385a. In this case, the lower end of the cover front part 371 and the rear end of the cover upper surface part 372 may be detachably coupled to the lower fixing part 385b and the upper fixing part 385a. Accordingly, the drawer cover 37 may be detachably mounted from the drawer part 32 by the user as needed, so that the internal space configuration of the drawer part 32 can be varied.

In a state in which the drawer cover 37 is mounted, the cover upper surface 372 shields the rear end of the upper surface of the drawer 32. That is, the drawer part 32 may block the rear space S2 except for the front space S1 in which the basket 36 and the lifting device 80 are mounted by the cover upper surface part 372.

In addition, the cover upper surface 372 guides the cold air that is discharged from the cold air discharge port 162 and flows from the rear to the front. In addition, the height of the cover upper surface part 372 is slightly lower than the upper end of the basket 36, so that the cold air flowing along the cover upper surface part 372 hits the upper end of the basket 36 and the drawer part 32 It can be made to flow inward.

Meanwhile, an elevating device 80 may be provided inside the drawer body 38. The lifting device 80 has a structure that is connected to the driving device 40 so as to be able to move up and down, and both left and right sides may be raised and lowered uniformly.

The elevating device 80 may be configured as a scissor type and may be folded in a lowered state and unfolded in an elevated state so that the basket 36 or food seated on the upper surface may be elevated.

In addition, the lifting device 80 may include a support plate 81, and the support plate 81 may provide a seating surface of the basket 36 or a surface on which food is seated.

Meanwhile, the height of the drawer opening 35 may be located at a position lower than the upper end of the lifting device 80, that is, the upper surface of the support plate 81. Accordingly, in the state in which the lifting device 80 is mounted, it is possible to prevent the drawer opening 35 from being visible to the inside of the drawer part 32 in any state.

In addition, the support plate 81 has a size and shape corresponding to the front space to prevent foreign matters from penetrating into the lifting device 80 provided below the front space S1, and the lifting device 80 By blocking access to ), safety accidents can be fundamentally prevented.

18 is a perspective view of a lifting device according to an embodiment of the present invention. 19 is a view showing a state in which the upper frame of the lifting device is raised. And, Figure 20 is a partial enlarged view showing a state in which the lifting device is coupled to the lever of the present invention.

As shown, the lifting device 80 may be provided on the bottom of the inner side of the drawer part 32, and may be detachably provided on the inside of the drawer part 32.

In addition, the lifting device 80 may include an upper frame 82 and a lower frame 83 and a scissor assembly 84 disposed between the upper frame 82 and the lower frame 83.

In detail, the upper frame 82 is formed in a rectangular frame shape corresponding to the size of the inner front space S1 of the drawer part 32, and the support plate 81 may be mounted on the upper surface.

The upper frame 82 is moved in the vertical direction of the lifting device 80 and substantially supports the food or basket 36 together with the support plate 81.

The upper frame 82 may include a frame portion 821 forming a circumferential shape of the upper frame 82 as a whole, and a partition portion 822 partitioning the space inside the frame portion 821 into left and right sides. I can.

Since the frame portion 821 and the partition portion 822 are configured to form an outer frame and support the support plate 81, high strength is required. Accordingly, the frame portion 821 and the partition portion 822 are metal It may be formed of a material, and may be formed in a shape in which both ends are bent to increase strength and prevent deformation.

Further, a slide guide 824 for guiding the movement of the scissor assembly 84 may be formed on the lower side of the frame part 821 by receiving the end of the scissor assembly 84.

The scissor assembly 84 may be disposed in the spaces 823 and 824 on both sides of the partition 822, respectively.

The slide guide 824 may define a long hole 824a through which the scissor assembly 84 can pass. Accordingly, the scissor assembly 84 can be moved along the slide guide 824.

The lower frame 83 may have the same or similar structure to the upper frame 82 only in a direction different from that of the upper frame 82.

The lower frame 83 may include a frame portion and a partition portion. In addition, a slide guide 834 may be formed on the upper surface of the lower frame 83 to accommodate the end of the scissor assembly 84 to guide the movement of the scissor assembly 84.

The slide guide 834 may define a long hole 834a through which the scissor assembly 84 can pass. Accordingly, the scissor assembly 84 can be moved along the slide guide 834.

The scissor assembly 84 may be provided on both left and right sides, and both sides of the scissor assembly 84 operate by receiving power from one driving motor 64, so that it can be raised and lowered by the same height at the same time.

Therefore, even when supporting a heavy load, it can be effectively lifted and lowered by a pair of the scissors assembly 84, which is independently applied to both sides, and at this time, the scissors assembly 84 is the upper frame 82, that is, The support plate 81 may be elevated in a horizontal state.

The scissor assembly 84 may include a first scissor frame 841 in the form of a square frame, and a second scissor frame 845 in the form of a rectangular frame rotatably connected to the first scissor frame 841. have.

The left and right widths of the second scissor frame 845 may be smaller than the left and right widths of the first scissor frame 841. Accordingly, the second scissor frame 845 may be connected to the first scissor frame 841 while being positioned within an area formed by the first scissor frame 841.

The first scissor frame 841 may include a lower shaft 841a and an upper shaft 841b extending in a horizontal direction. The lower shaft 841a is rotatably supported by the lower frame 83, and the upper shaft 841b is disposed to pass through the sliding guide 824 of the upper frame 82.

The first scissor frame 841 may be connected to a first rod 841a extending in a vertical direction and an upper shaft 841b.

The second scissor frame 845 includes a lower shaft 851a and an upper shaft (not shown) extending in a horizontal direction, and a first rod 852a and a second rod 852b extending in the vertical direction. I can.

The first scissor frame 841 may include a scissor-side connecting portion 842 protruding to be connected to the lever 42. The scissor side connection part 842 is formed at an end of the extension part 842b extending from the first scissor frame 841 and the extension part 842b, and has a shape corresponding to the receiving space 422c. (842c) may be included.

The lever 42 may include a lever-side connecting portion 422 for receiving the scissor-side connecting portion 842 for coupling with the scissor-side connecting portion 842. The scissor side connection part 842 may be formed in a shape corresponding to the receiving space 422c of the lever side connection part 422. That is, the scissor-side connection portion 842 may be formed in a shape extending from a circular axis of rotation to one side, and may be formed in a shape corresponding to the rotation boss portion 422b and the lever-side protrusion 422a.

That is, the end of the scissor side connection portion 842 may be formed in a non-circular shape. Therefore, when the lever 42 is rotated while the scissor side connection part 842 is accommodated in the lever side connection part 422, the lever 42 is prevented from spinning with the scissors side connection part 842 Can be. In addition, the scissor side connection part 842 can transmit a greater force for the operation of the lifting device 80.

Hereinafter, a state in which the door 30 of the refrigerator 1 according to an embodiment of the present invention having the above structure is pulled out and moved up and down will be described in more detail with reference to the drawings.

21 is a perspective view of the lower drawer door in a closed state.

Referring to FIG. 21, the refrigerator 1 maintains a state in which both the rotating door 20 and the door 30 are closed in a food storage state. In this state, the user can store food by pulling out the door 30.

The door 30 may be provided with a plurality of upper and lower, and may be opened and extended by a user's manipulation.

At this time, the user's operation can be operated by touching the rotating door 20 or the operation unit 301 provided on the front of the door 30, and opening by the operation device 302 provided at the bottom of the door 30 Input of manipulation may be possible.

In addition, the operation unit 301 and the operation device 302 may be configured to individually operate the withdrawal of the door 30 and the lifting and lowering of the lifting device 80, respectively. Of course, it will also be possible for the user to hold the handle of the door 30 and open it.

And, hereinafter, the opening and elevation of the lower drawer door 30b among the doors 30 disposed in the upper and lower directions is described for example, but both the upper and lower doors 30 are withdrawn in the same manner. It will be able to be elevated.

22 is a perspective view of the lower drawer door fully open. 23 is a cross-sectional view of the drawer door in a state in which the basket of the lower drawer door is completely lowered. And, FIG. 24 is a perspective view showing states of the driving device and the lifting device in the state of FIG. 23.

As shown, the lower drawer door 30b is pulled forward according to the user's pulling out operation of the lower drawer door 30b. The lower drawer door 30b may be pulled out while the pull-out rail 33 is extended.

On the other hand, the lower drawer door 30b may be configured not to be opened by pulling directly by a user, but to be withdrawn by driving the withdrawal motor 14.

The draw-out rack 34 provided on the bottom surface of the lower drawer door 30b may be coupled with a pinion gear 141 that is rotated when the draw-out motor 14 provided in the cabinet 10 is driven, and thus The lower drawer door 30b is pulled in and out as the pull-out motor 14 is driven.

The draw-out distance of the lower drawer door 30b may be extended to at least a distance at which the front space S1 inside the drawer part 32 can be completely exposed to the outside. Accordingly, in such a state, when the lifting device 80 is elevated, the basket 36 or the food is not interfered with the doors 20 and 30 or the cabinet 10 disposed above.

In this case, the draw-out distance of the lower drawer door 30b may be determined by the draw-out detection device 15 disposed on the cabinet 10 and/or the lower drawer door 30b.

The in/out detection device 15 may be configured as a detection sensor that detects a magnet 389 so that the lower drawer door 30b is completely pulled out or closed.

For example, as shown, a magnet 389 may be provided on the bottom of the drawer 32 and a detection sensor may be provided on the cabinet 10. The withdrawal detection device 15 corresponds to the position of the magnet 389 when the lower drawer door 30b is closed and the position of the magnet 389 when the lower drawer door 30b is completely withdrawn. It can be provided in a position. Accordingly, it is possible to determine the state of the drawing in and out of the lower drawer door 30b by the drawing in/out detecting device 15.

In addition, if necessary, a switch is provided at a position where the lower drawer door 30b is completely retracted and a position at which the lower drawer door 30b is completely retracted, so that the lower drawer door 30b may be sensed withdrawal and retracted, and the withdrawal motor 14 rotates. The number may be counted, or the withdrawal of the lower drawer door 30b may be detected by a sensor measuring a distance between the rear surface of the door 31 and the front end of the cabinet 10.

When the lower drawer door 30b is completely withdrawn, the driving motor 64 is driven to operate the lifting device 80. The lifting device 80 may be configured to operate in a situation in which the lower drawer door 30b is sufficiently pulled out to ensure safe lifting of the food or basket 36 seated in the lifting device 80.

That is, when the lower drawer door (30b) is pulled out and the front space (S1) is completely exposed to the outside, the lifting device 80 is operated and the basket 36 seated in the lifting device 80 or stored It is possible to prevent food from interfering with the other doors 20 and 30 or the cabinet 10.

Looking in more detail at the state in which the lower drawer door 30b is pulled out, when the lower drawer door 30b is pulled out for lifting, the front space S1 is completely outside the lower storage space 12. Must be withdrawn.

In particular, the rear end (L1) of the front space (S1) must be in a state that is more pulled out than the front end (L2) of the cabinet 10 or the upper door 20, and prevent interference when the lifting device 80 is elevated. In order to prevent it, it must be located in front of the cabinet 10 or the front end L2 of the upper door 20 at least.

In addition, when the lifting device 80 is pulled out to be driven, the entire drawer 32 is not completely pulled out, and as shown in FIG. 22, only to a position to avoid interference when the lifting device 80 is lifting. Can be withdrawn. At this time, at least a portion of the rear space S2 of the drawer 32 is located inside the lower storage space 12. That is, the rear end L3 of the drawer part 32 is positioned at least inside the lower storage space 12.

Therefore, even when the weight of the lower drawer door 30b including the driving device 40 and the lifting device 80 is added to the weight of the storage object, the draw-out rail 33 or the lower drawer door 30b ) It is possible to ensure stable withdrawal and lifting operation without sagging or damage of itself.

Before the lifting device 80 is raised, the lever 42 and the screw holder are located in the lowest position. The lifting detection device 90 detects this and determines that the current state is a state in which the lifting device 80 is completely lowered.

When it is determined that the lifting device 80 is in a completely lowered state by the lifting detection device 90, the driving device 40 starts operation when the user manipulates or completely withdraws the lower drawer door 30b. can do.

25 is a cross-sectional view of the drawer door in a state in which the basket of the lower drawer door is fully raised. 26 is a perspective view showing the state of the driving device and the lifting device in the state of FIG. 25.

As shown, in a state in which the lower drawer door 30b is withdrawn, when an operation signal of the driving device 40 is input, the driving device 40 is operated, and the lifting of the lifting device 80 is performed. Thus, the state as shown in FIG. 22 may be obtained.

In this embodiment, the lifting of the lifting device 80 means that the upper frame 82 is raised by the scissor assembly 84, and the descending of the lifting device 80 is caused by the scissor assembly 84. This means that the upper frame 82 is lowered.

The driving device 40 is in a state connected to the lifting device 80, and thus, power can be transmitted to the lifting device 80. With the start of the operation of the driving device 40, power is transmitted to the lifting device 80, and the lifting device 80 starts to ascend.

In detail, when the driving motor 64 rotates forward and backward by a rising or falling signal of the lifting device 80, the driving device 40 starts an operation.

Looking at the ascending operation of the lifting device 80 as a reference, a plurality of gears connecting the driving motor 64 and the screws 52 and 50a are rotated by the driving of the driving motor 64. At this time, since the same rotational force is transmitted to the screws 52 and 50a on both sides, the screw holders 56 and 56a are simultaneously raised by the same height.

As the screw holders 56 and 56a rise, the lever 42 connected to the screw holders 56 and 56a rotates. As the lever 42 connected to the screw holders 56 and 56a is rotated, the height of the lever 42 increases, and the first connected to the lever 42 by the increase in the height of the lever 42 The height of the first rod 842a of the scissor frame 841 is increased.

The scissor assembly 84 can be unfolded by increasing the height of the first rod 842a of the first scissor frame 841.

Eventually, as the scissor assembly 84 is unfolded, the upper frame 82 rises, and the basket 36 or food seated on the support plate 81 rises, and finally, as shown in FIG. 25 The lifting device 80 is raised to the maximum height. In this state, the user can easily lift the food or basket 36 without excessively bowing the waist.

Looking in more detail at the state in which the lifting device 80 is raised to the maximum, the lifting device 80 is positioned at a lower position than at least the upper end of the drawer part 32.

In a state in which the basket 36 is seated in the driving device 80, when viewed from the basket 36, an upper end H1 of the basket 36 is an upper end H2 of the lower storage space 12. ) Can be raised to a higher position. The height at this time is such that the user can reach the basket 36 without bending the waist, and may be the most suitable height for use.

In other words, the driving device 40 has a structure that is lifted from the inside of the drawer part 32, but in a state in which the basket 36 is seated in the lifting device 80, the basket 36 is It can be located at a height that is easily accessible.

After the user's food storage operation is completed, the user may lower the lifting device 80 by operating the operation unit 301. The lowering of the lifting device 80 may be performed by reverse rotation of the driving motor 64, and may be gradually performed through a process opposite to the above-described process.

In addition, when the lifting device 80 is lowered, it is in a state as shown in FIG. 23. At this time, the completion of the descending of the lifting device 80 is also performed by the lifting detection device 90. When the magnet is detected by the detection sensor 93 located below, the lifting device 80 determines that the descending has been completed, and the driving device 40 stops.

In addition, after the drive motor 64 is stopped, the lower drawer door 30b may be retracted. In this case, the lower drawer door 30b may be closed by a user's manipulation, or may be closed by driving the withdrawal motor 14. When the lower drawer door 30b is completely closed, the state as shown in FIG. 21 may be obtained.

Hereinafter, the flow of cold air inside the storage space 12 in the closed state of the door 30 will be described in detail with reference to the drawings.

27 is a cross-sectional view showing a state in which cool air flows in a storage compartment when the drawer door is closed. And, FIG. 28 is an enlarged view of part A of FIG. 27. And, FIG. 29 is an enlarged view of part B of FIG. 27.

As shown, the cold air generated in the evaporator 13 is discharged forward through the cold air outlet 162 by the drive of the blowing fan 164. At this time, the discharged cold air flows forward while flowing along the upper cover 372.

The cold air flowing forward collides with the upper rear end of the basket 36 protruding more than the upper end of the drawer 32. Some of the cold air hitting the basket 36 flows downward along the rear surface of the basket 36. That is, the flow of cold air may be forced into the space formed by the rear surface of the basket 36 and the cover front portion 371. As described above, the cold air flowing along the rear surface of the basket 36 is guided to the bottom of the drawer 32 and cools the rear area of the basket 36.

In addition, the lifting device 80 flows forward along the bottom surface of the drawer part 32 on which the lifting device 80 is disposed, and is directed to the outside of the drawer part 32 through the drawer opening 35 or the exhaust hole 381. Can be exhausted.

On the other hand, some of the cold air hitting the upper rear end of the basket 36 passes through the basket hole 363 and flows into the basket 36. In addition, the cold air introduced into the basket 36 may flow downward from the inside of the basket 36 to cool the inside of the basket 36. In addition, some of the cold air that has passed through the basket hole 363 may further flow forward. In addition, it may flow forward toward the air guide portion 318b through the basket hole 363 at the front of the basket 36.

Another part of the cold air hitting the upper rear end of the basket 36 may continuously flow forward beyond the basket 36. In addition, the cold air that flows forward together with the cold air guided to the front of the basket 36 collides with the rear surface of the door part 31.

At this time, the cold air flowed forward by the air guide portion 318b on the rear upper surface of the door portion 31 flows downward again. At this time, since the rear surface of the door part 31 and the front surface of the drawer part 32 are separated from each other, the cold air guided downward by the air guide part 318b is the door part 31 and the drawer part ( It can flow between 32).

In addition, the cold air flowing between the rear surface of the door part 31 and the front surface of the drawer part 32 passes through the air holes 393e and 383 formed in the front surface of the drawer part 32. It can flow inside. That is, the cold air flowing downward by the air guide part 318b passes through the main body air hole 383 and the plate air hole 393e in order and flows into the drawer part 32.

The cold air flowing into the drawer part 32 flows downward to cool the front area of the basket 36. That is, the inside of the drawer 32 may be evenly introduced into both the front and the rear, and thus, the cool air flows without being stagnant due to the active cold air flow in the inside of the drawer 32.

Therefore, the inside of the drawer part 31 may have a uniform temperature distribution, and the metal appearance state of the drawer part 32 is neat and clean by preventing the occurrence of local frost or growth of freezing by preventing stagnation of cold air. Will be able to maintain.

On the other hand, the cold air introduced through the front of the drawer 32 flows downward along the front of the basket 36, and then through the drawer opening 35 or the exhaust hole 381 32) can be exhausted to the outside.

The cold air exhausted to the outside of the drawer part 32 may flow backward along the bottom surface of the drawer part 32 and the bottom surface of the storage space 12. In addition, the cool air flowing to the rear end of the drawer part 32 passes through the cool air intake part 163 extending into the space between the rear surface of the drawer part 32 and the inner case 102. Can be recovered to the deployed space. In addition, the recovered air flows from the lower side of the evaporator 13 to the upper side of the evaporator 13 and heat exchange with the evaporator 13 again to generate cool air, and may be discharged through the cool air outlet 162. .

When the blower fan 164 is driven, the cool air is circulated along the flow path of the cool air, and the inside of the storage space 12 maintains a set temperature.

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

Other embodiments of the present invention differ only in the structure of the front plate as compared to the above-described embodiments, but all other configurations are the same. Therefore, the same reference numerals are used for the same configuration, and detailed description thereof will be omitted.

30 is an exploded perspective view of a drawer according to another embodiment of the present invention. And, Figure 31 is a perspective view of a front plate of a drawer according to another embodiment of the present invention. And, FIG. 32 is a partial perspective view showing an inflow state of cold air into the drawer according to another embodiment of the present invention.

As shown in the drawings, a front plate 393 may be provided on an inner front surface of the drawer 32 of the refrigerator 1 according to another embodiment of the present invention. The front plate 394 may be formed of a metal material such as stainless steel, and may have a size corresponding to the front surface of the drawer part 32.

Further, the plate rim 393a may be formed around the front plate 394, and a plurality of plate fastening portions 393b may be formed on the plate rim 393a. Accordingly, by fastening a screw to the plate fastening part 393b, the front plate 394 may be fixedly mounted on the front surface of the drawer part 32.

Further, the drawer opening cutout 393c and the exhaust hole cutout 393d may be formed at a lower end of the front plate 394. Accordingly, when the front plate 393 is mounted, the drawer opening 35 communicates with the drawer opening cutout 393c, and the exhaust hole 381 communicates with the exhaust hole cutout 393d to Allows the internal cold air of the part 32 to be discharged to the outside.

In addition, a plurality of plate air holes 394e may be formed in the front plate 394. The plate air holes 394e are circular holes having a small size, and a plurality of the plate air holes 394e may be disposed in a setting area of the front plate 394.

In detail, the air holes 394e and 383 may be formed above the drawer opening cutout 393c and the exhaust hole cutout 393d, and the drawer opening cutout 393c and the exhaust hole cutout 393d When the upper region of) is divided into upper and lower regions, it can be positioned in the lower region. That is, the plate air hole 394e may be evenly formed in the entire lower region except for both left and right side ends of the front plate 394. Accordingly, a plurality of the plate air holes 394e may be located in the inner region of the main body air hole 383.

Since the plate air hole 394e is formed only in the lower region, the upper region of the front plate 394 is formed in a plate shape, so that the plate air hole 394e is exposed while the basket 36 is mounted. Can be minimized.

In addition, cold air flowing along the rear surface of the door part 31 and the front surface of the drawer part 32 may pass through the plate air hole 394e and smoothly flow into the drawer part 32.

Claims (37)

A cabinet in which a storage space is formed;
A drawer door including a door unit for opening and closing the storage space and a drawer unit for providing a storage space;
A grill pan that forms a rear surface of the storage space and has a cool air discharge port for discharging cool air toward the door;
It is provided in the drawer and includes a lifting device for lifting at least a portion of the storage space; and
And an air hole in which a rear surface of the door portion and a front surface of the drawer portion are spaced apart, and an air hole flowing between the rear surface of the door portion and the drawer portion flows into the drawer portion.
The method of claim 1,
A refrigerator, characterized in that an air guide portion is formed on a rear surface of the door portion to be inclined or rounded and guides cold air toward the door portion between the door portion and the drawer portion.
The method of claim 2,
The air guide portion, characterized in that the refrigerator formed above the upper end of the drawer.
The method of claim 2,
A door light that illuminates the drawer is provided on the rear surface of the door part above the drawer part,
The air guide part is a refrigerator, characterized in that formed on the outer surface of the door light.
The method of claim 4,
The door light is a refrigerator, characterized in that extending at least equal to or longer than the horizontal length of the drawer.
The method of claim 1,
The door part is provided with a driving device that provides power for driving the lifting device,
The driving device and the lifting device are connected to each other through a drawer opening formed in the front of the drawer.
The method of claim 6,
The air hole is a refrigerator, characterized in that formed above the drawer opening.
The method of claim 6,
The drawer part,
A drawer body forming the shape of the drawer;
And a plate formed of a plate-shaped metal material provided on the inner and outer sides of the drawer body and forming an exterior of the drawer.
The method of claim 8,
The air hole and the drawer opening are formed through the drawer body and the plate at positions corresponding to each other.
The method of claim 6,
The drawer opening is provided at the lower front of the drawer,
The refrigerator, characterized in that a plurality of air holes are disposed in a region between the drawer opening at the upper end of the drawer.
The method of claim 10.
The plurality of air holes are entirely disposed in an area between the drawer opening at the upper end of the drawer.
The method of claim 10,
The plurality of air holes are centrally disposed in a lower portion of an area between the drawer opening from the upper end of the drawer.
The method of claim 6,
The drawer openings are disposed on both sides of the lower front side of the drawer part,
An exhaust hole through the drawer is further formed between the drawer openings on both sides.
The method of claim 13,
The exhaust hole and the drawer opening are formed at a position lower than the upper end of the lifting device.
The method of claim 14,
The exhaust hole is formed larger than the air hole, the refrigerator, characterized in that formed in a long hole shape vertically.
A cabinet forming a storage space;
A door part for opening and closing the opened front surface of the storage space;
Includes; a drawer part forming a storage space at the rear of the door part, and being drawn in and out together with the door part,
The drawer part,
A drawer body forming the shape of the drawer part;
A body air hole penetrating through the front of the drawer body is formed,
A plurality of plates provided on the inner and outer sides of the drawer body and formed in the shape of a metal plate to form an inner exterior of the drawer unit;
And a plate air hole formed through the plate corresponding to the drawer side air hole,
A refrigerator, characterized in that cold air is introduced into the drawer from the front of the drawer through the main air hole and the plate air hole.
The method of claim 16,
The plate,
And a front plate forming an inner front surface of the drawer, wherein a plurality of plate air holes are formed in the front plate.
The method of claim 17,
The plate,
An outer side plate forming the outer left and right sides of the drawer part;
And an inner side plate forming both inner left and right sides of the drawer.
The method of claim 16,
The main body air hole is formed larger than the plate air hole,
A refrigerator, characterized in that a plurality of plate air holes are disposed inside the main body air hole.
The method of claim 19,
The main body air hole is a refrigerator, characterized in that formed in a long hole shape extending in the vertical direction.
The method of claim 19,
The spacing between the plurality of main body air holes,
Refrigerator, characterized in that formed larger than the gap between the plurality of plate holes.
The method of claim 16,
The door part is provided with a driving device that provides power,
An elevating device that is connected to the driving device and lifted up and down is provided inside the drawer,
A drawer opening is formed in the front of the drawer, and the driving device and the lifting device are connected to each other through the drawer opening.
The method of claim 22,
The plate air hole is a refrigerator, wherein the plate air hole is evenly arranged in the entire area above the lifting device.
The method of claim 22,
The drawer opening is a refrigerator, characterized in that formed below the main body air hole and the plate air hole.
The method of claim 24,
The drawer opening is provided with a pair at both side ends of the main body,
A refrigerator, characterized in that a plurality of exhaust holes for discharging the cool air of the drawer are formed between the pair of drawer openings.
The method of claim 25,
And a drawer opening cutout and an exhaust hole cutout formed at a lower end of the plate at a position corresponding to the drawer opening and the exhaust hole.
The method of claim 25,
The drawer opening and the exhaust hole are covered by the lifting device.
A cabinet forming a storage space;
A drawer door including a door unit for opening and closing the storage space and a drawer unit for providing a storage space;
A grill pan forming at least a part of a rear surface of the storage space;
A cold air outlet opening in the grill pan and for discharging cold air forward from a position higher than the drawer portion;
An elevating device provided inside the drawer and configured to move up and down;
Includes; a basket seated on the lifting device and having an open top surface,
And when the drawer-type door is closed, the basket protrudes more upward than the rear end of the drawer to guide a portion of the cool air discharged from the cool air discharge port downwards along the basket.
The method of claim 28,
And an air hole formed in the front of the drawer to allow cool air in front of the drawer to flow into the inside of the drawer.
The method of claim 28,
A refrigerator having a cold air suction and suction unit formed at a lower end of the grill fan to suck the air inside the storage space.
The method of claim 30,
The refrigerator according to claim 1, wherein the cold air intake part extends between the inner side of the storage space and the rear side of the drawer part.
The method of claim 28,
A drawer cover that divides the storage space into a front space in which the lifting device is provided and a rear space is provided inside the drawer part,
The drawer cover,
A cover front part extending from a bottom surface of the drawer to an upper end of the drawer part;
And a cover upper surface extending from an end portion of the cover front portion to a rear end of the drawer portion to shield an upper surface of the rear space.
The method of claim 32,
A refrigerator, characterized in that the upper end of the basket protrudes more upward than the upper surface of the cover.
The method of claim 33,
A basket hole penetrating through one surface of the basket is opened in the basket,
And the basket hole is formed at a height between an upper end of the basket and an upper surface of the cover.
The method of claim 34,
The refrigerator, characterized in that a plurality of basket holes are continuously formed along a circumferential surface of the basket.
The method of claim 34,
The basket hole is a refrigerator, characterized in that formed in a position facing the cold air outlet.
The method of claim 28,
A refrigerator, characterized in that an exhaust hole for discharging the cold air inside the drawer to the outside of the drawer is formed at a lower front of the drawer.

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