JP5782093B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator, and more particularly, to a refrigerator that senses it when a door is opened or closed and can easily open or close the door.

  As is well known, a refrigerator is a device that allows food to be stored longer in a frozen or refrigerated state.

  The refrigerator includes a refrigerator main body in which a storage chamber is formed, and a door that is provided in the refrigerator main body and opens and closes the storage chamber. The refrigerator main body is provided with a refrigeration cycle apparatus so that the storage room can be cooled.

As the refrigeration cycle apparatus, for example, a so-called vapor compression refrigeration cycle apparatus including a compressor, a condenser, an expansion valve, and an evaporator may be used.
You may comprise the said door so that rotation with respect to the said refrigerator main body is possible.
You may comprise the said door with the drawer which slides back and forth of the said refrigerator main body.

  On the other hand, Patent Document 1 discloses a “refrigerator automatic drawer device” that drives a drawer container of a refrigerator in an opening direction or a closing direction.

  The automatic drawer device of the refrigerator includes an open switch for operating the drawer container in the opening direction and a close switch for operating in the closing direction.

  However, in such an automatic drawer device for a refrigerator, the open switch and the close switch are provided to be exposed to the outside, and the open switch or the close switch is unexpectedly operated regardless of the user's intention. In this case, there is a problem that the drawer container is driven in the opening direction or the closing direction regardless of the intention of the user.

  On the other hand, the refrigerator may be configured as a so-called bottom freezer type in which the freezer compartment is disposed below the refrigerator compartment. In this case, a drawer door is mainly used as the freezer compartment door.

  Hereinafter, a conventional refrigerator will be described with reference to FIGS.

  24 is a perspective view showing a conventional refrigerator, FIG. 25 is a perspective view showing the refrigerator of FIG. 24 so that the inside of the freezer compartment can be seen, and FIG. 26 is a state where the freezer compartment door of the refrigerator of FIG. 24 is opened. FIG. 27 is a front conceptual view showing that a dead space is generated in the refrigerator of FIG.

  As shown in the figure, the refrigerator is a bottom freezer type refrigerator, and a refrigerator compartment is arranged above the refrigerator main body 10, and a freezer compartment 30 is arranged below the refrigerator compartment.

  The front opening of the refrigerator compartment is opened and closed by a pair of refrigerator compartment doors 20 attached to one side of the refrigerator body 10 by hinges.

  The front opening of the freezer compartment 30 is opened and closed by a freezer compartment door 40 that is attached by a rail assembly 60 so that it can be pulled out.

  A frame 50 is coupled to the inside of the freezer compartment door 40, and a rail assembly 60 is coupled between the frame 50 and the inner surface of the freezer compartment 30 to support the freezer compartment door 40 so that it can be pulled out.

A storage unit, for example, a basket 70 is attached to the frame 50, and various foods to be stored frozen are stored in the basket 70.
The basket 70 occupies more than half of the space below the freezer compartment 30.

Above the basket 70, there are provided a shelf 92 that can be pulled out, and a drawer 94 that is arranged on the shelf 92 and attached to the inner surface of the freezer compartment 30 so that it can be pulled out.
The bottom portion of the basket 70 is spaced apart from the bottom surface of the freezer compartment 30 by a predetermined distance. This is because the cool air in the freezer compartment 30 flows between the bottom of the basket 70 and the bottom surface of the freezer compartment 30.
The basket 70 is attached and supported inside the frame 50, and a rail assembly 60 is coupled to the outside of the frame 50.

The rail assembly 60 is disposed on the upper side of the basket 70 when viewed from the side.
The rail assembly 60 includes a support rail 61 fixed to both sides of the inner surface of the freezer compartment 30, a guide rail 62 that slides with respect to the support rail 61, a slide with respect to the guide rail 62, and a frame 50 or basket 70. And a moving rail 66 coupled to the motor.

  In order to increase the pull-out distance of the basket 70, an intermediate rail 64 may be further provided between the guide rail 62 and the moving rail 66.

  On the other hand, a machine room 12 in which a compressor or the like is installed is provided at the lower back side of the freezer room 30, and the rear bottom surface of the freezer room 30 is formed by an inclined surface 32 in order to form a space of the machine room 12. It is common.

  Therefore, when the rail assembly 60 is coupled to the lower portion of the inner side surface of the freezer compartment 30, the pull-out distance of the rail assembly 60 is shortened by the inclined surface 32 at the rear of the freezer compartment 30 and cannot be pulled out as desired. There is.

  Accordingly, the rail assembly 60 is attached to the inner surface of the freezer compartment 30 at a height that does not interfere with the inclined surface 32 behind the freezer compartment 30.

  The rail assembly 60 must support the freezer compartment door 40 coupled to the frame 50 and the basket 70 in which food and drink are stored, and must be slidably attached to the front and rear.

  Further, the rail assembly 60 must be drawn into the freezer compartment 30 so that the freezer door 40 is closed, and cannot be pulled out of the freezer compartment 30 so that the basket 70 is exposed to the outside. Don't be.

  Furthermore, the rail assembly 60 is about half as high as the storage space of the freezer compartment 30, as best shown in the side view of FIG. Installed.

Japanese Patent Laid-Open No. 2-146487

  However, in such a conventional refrigerator, as shown in FIG. 27, rail assemblies 60 are provided on both upper sides of the basket 70, so that the lateral width W <b> 2 of the basket 70 is equal to the lateral width (internal width) of the freezer compartment 30. ) It becomes narrower than the value obtained by subtracting the left and right width W3 of each rail assembly 60 from W1.

  Further, there is a problem that a dead space DS is generated below each rail assembly 60.

  In addition, since the cold air flow space 72 in which the cold air inside the freezer compartment 30 flows is formed at the bottom of the basket 70, there is a problem that the actual storage space of the basket 70 is further smaller than the freezer compartment 30.

  Furthermore, when the rail assembly 60 is installed at a low position in order to efficiently use the storage space of the freezer compartment 30, the overall length of the rail assembly 60 is shortened by the inclined surface 32, and as a result, the basket 70. There was a problem that the distance to the outside was reduced.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a refrigerator capable of suppressing a door from being unexpectedly driven in a situation not intended by a user.

  Another object of the present invention is to provide a refrigerator capable of opening or closing a door according to the user's intention.

  It is still another object of the present invention to provide a refrigerator that can prevent the pull-out distance of the pull-out door from being limited (shortened) by the rear inclined surface.

  Another object of the present invention is to provide a refrigerator capable of increasing the lateral width of the door basket.

  In order to achieve the above object, the present invention comprises a refrigerator body having a storage room, a door body disposed on the front surface of the storage room, and a handle that is accommodated and installed in the door body so as to be relatively movable, A door that opens and closes the storage chamber, a door driving device that pressurizes the door so that the door moves in an opening direction or a closing direction, and a door that senses the handle when the handle is pressed in the opening or closing direction of the door. There is provided a refrigerator including a pressure sensing unit and a control unit that controls the door driving device based on a sensing result of the door pressure sensing unit.

  The door pressurization sensing unit may include an elastically deformable dielectric layer and electrodes respectively disposed on opposing surfaces of the dielectric layer.

  The door pressure sensing unit may include a door opening pressure sensing unit that senses when the handle is pressurized in the opening direction of the door.

  The door body may be provided with a handle accommodating portion for accommodating the handle, and the door opening pressure sensing portion may be provided between a front surface or an upper surface of the handle and the handle accommodating portion. .

  The handle may be provided so as to be movable in the front-rear direction of the refrigerator main body, and the door opening pressure sensing unit may be provided between the front surface of the handle and the handle housing unit.

  The handle may be provided so as to be rotatable in the vertical direction of the refrigerator main body, and the door opening pressure sensing unit may be provided between an upper surface of the handle and the handle accommodating unit.

  The refrigerator may further include a return spring that returns the handle to an initial position.

  The refrigerator may further include a handle guide for guiding the movement of the handle, and the door pressurization sensing unit may be provided between the handle and the handle guide.

  The handle or the handle guide may be provided with a stopper that restricts movement of the handle.

  The door pressurization sensing unit may include a door closing pressurization sensing unit that senses when the handle is pressurized in the closing direction of the door.

  The door closing pressure sensing unit may be configured to be provided between the back surface of the handle and the handle housing unit.

  The door driving device may include an electric motor that generates a driving force for the door, and a power transmission unit that transmits a rotational force of the electric motor to the door.

  The refrigerator may further include a calculation unit that calculates an output of the door driving device based on a detection result of the door pressurization detection unit.

  A rear surface of the storage chamber is provided with an inclined surface that is inclined upward and the door includes a basket that is provided in the door body and stores food, and between the door and the storage chamber. A rail assembly that slidably supports the door and the basket, and the rail assembly is coupled to a lower portion of the bottom surface or both side surfaces of the storage chamber and is bent corresponding to the inclined surface of the storage chamber. And a fixed rail formed on the basket and a moving rail that is bent and slides with respect to the fixed rail.

  The fixed rail may include a horizontal portion disposed on the bottom surface of the storage chamber and an inclined portion disposed on the inclined surface.

  The moving rail includes a fixed portion corresponding to a horizontal portion of the fixed rail and a variable portion that is variable corresponding to the horizontal portion and the inclined portion of the fixed rail at a position where the movable rail is inserted to the fixed rail to the maximum. But you can.

  The fixed rail may be coupled to a bottom surface of the storage chamber, and the moving rail may be coupled to a lower surface of the basket and slidably coupled on the fixed rail.

  The fixed rail may be coupled to a lower side surface of the storage chamber, and the moving rail may be coupled to a lower side surface of the basket and slidably coupled to the inside of the fixed rail.

  A rail coupling portion recessed inward may be formed on at least one of the side wall of the storage chamber and the side surface of the basket so that a region of the rail assembly can be coupled.

  The rail assembly may further include an intermediate rail provided between the fixed rail and the moving rail, and the moving rail may be slidably coupled to the intermediate rail.

  According to an embodiment of the present invention, a door pressurization sensing unit that senses when a handle that is housed and installed in a door body so as to be capable of relative movement is pressurized in the opening direction or the closing direction of the door, and the detection result By controlling the door driving device based on the actual opening / closing operation of the door, the door driving device is controlled to operate so that the door is unexpectedly driven in a situation not intended by the user. Can be suppressed.

  In addition, since the door pressurization sensing unit is configured to include an elastically deformable dielectric layer and an electrode, it can sense that the pressurization operation is actually performed in the door opening direction or the closing direction. The door can be prevented from being driven by an erroneous operation of the switch.

  Further, by providing the door main body with a handle accommodating portion in which the handle is accommodated, the possibility of malfunction of the door pressurization sensing portion can be further suppressed.

  Furthermore, a handle guide for guiding the movement of the handle is provided, and the door pressure sensor is provided between the handle guide and the handle, so that the handle stably moves (slides or rotates) when the handle is operated. The door opening direction or closing direction pressing operation can be accurately sensed.

  Furthermore, by providing the handle or the handle guide with a stopper that restricts the movement of the handle, it is possible to prevent the door pressure sensing unit from being excessively compressed. Thereby, forced deterioration of the door pressurization sensing unit can be prevented, and the life can be extended.

  Furthermore, by providing a calculation unit that calculates the output of the door driving device based on the detection result of the door pressurization detection unit, the door can be appropriately moved in the opening direction or the closing direction according to the user's intention.

  Further, the rail assembly includes a fixed rail formed by being bent corresponding to the rear inclined surface of the storage chamber, and a moving rail that is bent and slides with respect to the fixed rail, so that the basket is inclined by the inclined surface. It is possible to suppress the restriction of the pulling distance to the outside.

  Furthermore, the rail assembly includes a fixed rail formed by being bent corresponding to the rearward inclined surface of the storage chamber, and a moving rail that bends and slides with respect to the fixed rail. Can be increased to increase the actual storage space of the basket.

It is sectional drawing of the refrigerator by one Embodiment of this invention. It is a principal part enlarged view of the door of FIG. FIG. 3 is a perspective view before the handle guide and the handle of FIG. 2 are coupled. It is the VIII-VIII sectional view taken on the line of FIG. It is sectional drawing of the door pressurization detection part of FIG. It is a figure for demonstrating the effect | action of the door pressurization detection part of FIG. It is a figure for demonstrating the effect | action at the time of the opening direction movement of the handle | steering-wheel of FIG. It is a figure for demonstrating the effect | action at the time of the close direction movement of the handle | steering-wheel of FIG. It is sectional drawing which shows the state by which the door of FIG. 2 was pulled out. It is a control block diagram of the refrigerator of FIG. It is a control block diagram of the refrigerator by other embodiment of this invention. It is a principal part enlarged view of the refrigerator by other embodiment of this invention. FIG. 13 is a perspective view before the handle guide and the handle of FIG. 12 are coupled. It is the XIV-XIV sectional view taken on the line of FIG. It is a figure for demonstrating the effect | action at the time of the opening direction movement of the handle | steering-wheel of FIG. It is a figure for demonstrating the effect | action at the time of the closing direction movement of the handle | steering-wheel of FIG. It is sectional drawing of the refrigerator by other embodiment of this invention. It is a front conceptual diagram which shows the attachment position of the rail assembly of FIG. It is a principal part enlarged view of FIG. FIG. 20 is a side view showing a state in which the basket of FIG. 19 is pulled out. It is a figure which shows the modification of the rail assembly of FIG. It is a side view of the freezer compartment which shows the basket and rail assembly of FIG. It is a side view which shows the state by which the basket of FIG. 22 was pulled out. It is a perspective view which shows the conventional refrigerator. It is a perspective view which shows the refrigerator of FIG. 24 so that the inside of a freezer compartment can be seen. It is a side view which shows the state which the freezer compartment door of the refrigerator of FIG. 24 opened. It is a front conceptual diagram which shows that a dead space arises in the refrigerator of FIG.

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

  As shown in FIGS. 1, 2, and 10, a refrigerator according to an embodiment of the present invention is housed and installed in a refrigerator main body 110 including a storage chamber 120, a door main body 151, and a door main body 151 so as to be relatively movable. The door 130 includes a handle 160, opens and closes the storage chamber 120, the door driving device 180 pressurizes the door 130 so as to move in the opening direction or the closing direction, and pressurizes the handle 160 in the opening direction or the closing direction of the door 130. In addition, a door pressurization sensing unit 190 that senses this may be included, and a control unit 250 that controls the door driving device 180 based on the sensing result of the door pressurization sensing unit 190 may be included. Here, the storage chamber 120 is a general term for spaces formed so that food can be stored inside the refrigerator main body 110, and the refrigerator main body 110 is configured to include at least one storage chamber 120. The refrigerator main body 110 may include a plurality of storage chambers 120, and the door driving device 180 and the door pressurization sensing unit 190 may be included in the plurality of storage chambers 120 and the door 130. The case where the apparatus 180 and the door pressurization sensing unit 190 are provided in one storage chamber 120 and the door 130 will be described as an example.

  As shown in FIG. 1, the refrigerator main body 110 may be configured to have a substantially rectangular parallelepiped shape. For example, the refrigerator main body 110 may be formed with a plurality of storage chambers 120 that are partitioned vertically. The refrigerator main body 110 may be provided with a refrigeration cycle apparatus (not shown) that provides cold air to the storage chamber 120.

  For example, a vapor compression refrigeration cycle apparatus may be used as the refrigeration cycle apparatus. As is well known, the vapor compression refrigeration cycle apparatus includes a compressor that compresses a refrigerant, a condenser that dissipates the refrigerant, an expansion device that decompresses and expands the refrigerant, and an evaporator that absorbs latent heat and evaporates the refrigerant. You may prepare.

  The refrigerator main body 110 may be provided with a machine room 127 in which the compressor 128 of the refrigeration cycle apparatus is accommodated.

  The machine room 127 may be provided in the lower rear region of the refrigerator main body 110, for example.

  On the other hand, the plurality of storage rooms 120 may include, for example, a refrigerator room 121, a freezer room 123, and a switching room 125.

  For example, the door 130 may include a refrigerator compartment door 131, a refrigerator compartment door 133, and a switching compartment door 135 that open and close the refrigerator compartment 121, the freezer compartment 123, and the switching compartment 125, respectively.

The refrigerator compartment 121 may be provided in the upper area of the refrigerator main body 110, for example.
A refrigerator door 131 may be provided in front of the refrigerator compartment 121.

  The refrigerator compartment door 131 may be rotatably coupled to the refrigerator main body 110 by a hinge 132 so that the refrigerator compartment 121 can be pivoted open and closed.

The freezer compartment 123 may be provided in the lower region of the refrigerator main body 110, for example.
The freezer compartment 123 may be provided with a freezer compartment door 133 that opens and closes the freezer compartment 123.

  The freezer compartment door 133 may be constituted by, for example, a so-called drawer door that slides in the front-rear direction of the refrigerator main body 110.

The switching chamber 125 may be provided between the refrigerator compartment 121 and the freezer compartment 123, for example.
The switching chamber 125 may be configured, for example, so that the internal temperature can be switched to the same temperature range as the refrigeration chamber 121.

  The switching chamber 125 may be configured such that the internal temperature is switched to the same temperature range as that of the freezing chamber 123.

  Furthermore, the switching chamber 125 may be configured such that the internal temperature is switched to a temperature range between the freezing chamber 123 and the refrigeration chamber 121.

The switching chamber 125 may be provided with a switching chamber door 135 that opens and closes the switching chamber 125.
The switching chamber door 135 may be configured, for example, as a pull-out door that slides in the front-rear direction of the refrigerator main body 110.

  Meanwhile, the door pressure sensing unit 190 and the door driving device 180 may be provided in the door 130 of each storage chamber 120. However, for convenience of explanation, the door pressure sensing unit 190 and the door driving device 180 are frozen. A case where the chamber door 133 and the freezing chamber 123 are provided will be described as an example.

  For example, as shown in FIG. 2, the freezer compartment door 133 is configured to include a door portion 150 that contacts the front surface of the freezer compartment 123 and a basket 170 that is provided on the back surface of the door portion 150 and stores food therein. May be.

  Between the freezer compartment door 133 and both side walls of the freezer compartment 123, a rail assembly 140 that supports the freezer compartment door 133 so as to be slidable back and forth may be provided.

  As shown in FIG. 1, the rail assembly 140 includes, for example, a fixed rail 141 provided on the inner wall of the freezer compartment 123, a moving rail 142 provided on the freezer compartment door 133, and between the fixed rail 141 and the moving rail 142. And an intermediate rail 143 provided in the vehicle.

  Inside the freezer compartment 123, a door driving device 180 that pressurizes the freezer compartment door 133 so as to move in the opening direction or the closing direction may be provided.

  The door driving device 180 may include, for example, an electric motor 181 that generates a driving force of the door 130 and a power transmission unit 185 that transmits the rotational force of the electric motor 181 to the door 130.

  The power transmission unit 185 may include, for example, a pinion 186 provided on the rotating shaft of the electric motor 181 and a rack tooth profile 187 that meshes with the pinion 186 and moves relative to the pinion 186. In this embodiment, although the case where the power transmission part 185 is provided with the pinion 186 and the rack tooth profile part 187 is illustrated, it cannot be overemphasized that other well-known means can be used.

  For example, the electric motor 181 may be provided in the freezer compartment 123, and the rack tooth profile 187 may be provided in the freezer compartment door 133.

  The electric motor 181 may be provided on the bottom surface of the freezer compartment 123, and the rack tooth profile 187 may be provided on the bottom portion of the freezer compartment door 133.

  On the other hand, the door portion 150 of the freezer compartment door 133 may be configured to include, for example, a door body 151 that opens and closes the front opening of the freezer compartment 123 and a handle 160 that is provided to be movable relative to the door body 151. Good.

  The door body 151 may include, for example, an outer plate 152 and an inner plate 154 that is spaced apart from the outer plate 152 with a space for filling the heat insulating material 156 therebetween.

  A handle accommodating portion 158 that accommodates the handle 160 so as to be capable of relative movement may be recessed in the front surface of the door body 151.

The handle accommodating portion 158 may be formed to be recessed inward from the front surface of the door main body 151.
The handle 160 may be provided in the handle accommodating portion 158 so as to be movable in the front-rear direction of the refrigerator main body 110.

  A door pressurization sensing unit 190 that senses when the handle 160 is pressurized in the opening direction or the closing direction of the door 130 may be provided inside the handle housing unit 158. That is, the door pressure sensing unit 190 is not exposed to the outside but is provided inside the handle housing unit 158, so that the door driving device 180 operates unexpectedly and the door 130 moves in the opening direction or the closing direction. Can be prevented.

  In addition, a handle guide 210 that guides the movement of the handle 160 may be provided inside the handle housing portion 158.

  The door pressure sensor 190 may be provided between the handle guide 210 and the handle 160.

  As shown in FIGS. 2 and 3, the handle 160 may be realized, for example, in a box shape in which a space portion opened downward is formed so that a finger can be inserted. The back surface portion 163 of the handle 160 may be formed to extend downward as compared to the front surface portion 161 and both side surface portions 162. The lower portion of the back surface portion 163 may be bent forward so as to correspond to the shape of the handle housing portion 158.

The handle guide 210 may be realized, for example, in a box shape opened downward so that the handle 160 can be accommodated therein so as to be capable of relative movement.
For example, the handle guides 210 may be configured to be coupled to face (contact) each other via the handle 160.

  The handle guide 210 may include, for example, a first handle guide 211 and a second handle guide 212 that are realized so as to come into contact with each other in the front-rear direction via the handle 160.

  In the contact area between the first handle guide 211 and the second handle guide 212, flange portions 213 protruding outward may be formed. The flange portions 213 may be coupled so as to face each other (contact).

  For example, as shown in FIGS. 3 and 6, the flange portion 213 has a plurality of fastening member insertion holes so that fastening members 218 for fastening the first handle guide 211 and the second handle guide 212 together can be respectively coupled. 217 may be formed respectively. The fastening member 218 may be realized by a bolt (screw) 219 and a nut 220, for example.

  A door pressure sensor 190 may be provided between the handle guide 210 and the handle 160.

  The door pressure sensor 190 may include a door opening pressure sensor 191a that senses when the handle 160 is pressurized in the opening direction of the door 130 (the freezer compartment door 133 in this embodiment). Good.

The door pressure sensor 190 may include a door closing pressure sensor 191b that senses when the handle 160 is pressurized in the closing direction of the door 130.
The door opening pressure sensor 191a may be disposed in front of the handle 160.

  More specifically, the door opening pressure sensing unit 191a may be disposed between the front surface portion 161 of the handle 160 and the front surface of the handle guide 210. For example, the door opening pressure sensor 191a may be configured to be coupled to the inner surface of the front surface of the handle guide 210.

The door closing pressure sensor 191b may be disposed behind the handle 160.
More specifically, the door closing pressure sensing unit 191b may be disposed between the back surface portion 163 of the handle 160 and the back surface of the handle guide 210. For example, the door closing pressure sensor 191b may be configured to be coupled to the inner surface of the back surface of the handle guide 210.

  For example, as shown in FIGS. 4 and 5, the door pressurization sensing unit 190 may include an elastically deformable dielectric layer 192 and electrodes 194 disposed on opposing surfaces of the dielectric layer 192. . In the present embodiment, the case where the dielectric layer 192 is formed in a plate shape and the two electrodes 194 are respectively disposed on a relatively wide surface of the dielectric layer 192 is illustrated, but the shape and size thereof can be changed as appropriate. It is.

  More specifically, the electrode 194 may be configured to have a predetermined area (S) and a distance (D) between the electrodes 194.

  The dielectric layer 192 may be realized by, for example, dielectric rubber (material). The electrode 194 may be realized by a flexible (flexible) rubber electrode 194, for example. Accordingly, as shown in FIG. 5, the door pressurization sensing unit 190 increases the area (S) of the electrode 194 (increase from S1 to S2) and decreases the distance (D) between the electrodes 194 (D1 to D2). The capacitance (C) increases (capacitance (C) = ε * S / D, ε is a dielectric constant).

  Each electrode 194 may be provided with a terminal 195 so that a cable 197 for connection to the outside can be connected. Each cable 197 is pulled out to the outside from a pull-out hole 215 provided in each of the first handle guide 211 and the second handle guide 212. Each cable 197 is connected to the control unit 250 so that a sensing signal can be output to the control unit 250.

  On the other hand, as shown in FIG. 7, in the contact area between the handle 160 and the handle guide 210, for example, a guide portion 230 that guides the back and forth movement of the handle 160 may be formed.

  The guide portion 230 is realized by a guide protrusion 231 that protrudes from one of the contact surfaces of the handle 160 and the handle guide 210 toward the other, and a guide protrusion accommodating portion 235 that movably accommodates the guide protrusion 231. Also good.

For example, the guide protrusions 231 may be formed so as to protrude outward from both side surface portions 162 of the handle 160.
The guide protrusion accommodating portion 235 may be formed on the inner surface of each side surface of the first handle guide 211 and the second handle guide 212 so that the guide protrusion 231 can be accommodated.

  Each guide projection accommodating portion 235 may include an upper surface 236 that slidably contacts the upper surface of the guide projection 231 and a bottom surface 237 that slidably contacts the lower surface of the guide projection 231.

  The handle 160 and the handle guide 210 may be provided with a stopper 240 that restricts the movement of the handle 160. For example, the stopper 240 may be realized by the side wall portions 241 and 242 formed at both ends of the guide protrusion accommodating portion 235. More specifically, the length of the guide protrusion accommodating portion 235 may be determined in consideration of the degree of compression of the door pressure sensing portion 190 when the guide protrusion 231 moves forward or backward. The stopper 240 is configured to prevent the door pressure sensing unit 190 from being excessively compressed.

  More specifically, as shown in FIG. 7, when the handle 160 is pulled in the opening direction, the handle 160 moves forward. When the handle 160 moves forward, the door opening pressure sensor 191a between the front surface portion 161 of the handle 160 and the front surface of the handle guide 210 is compressed. Thereby, the forward movement (opening) of the freezer compartment door 133 is detected. At this time, the handle 160 has the front end of the guide protrusion 231 in contact with the front side wall portion 241 of the guide protrusion receiving portion 235 and the forward movement of the handle 160 is suppressed, so that the door opening pressure sensor 191 a Excessive compression is prevented.

  Then, as shown in FIG. 8, when the handle 160 is pressurized in the closing direction, the handle 160 moves backward. When the handle 160 moves rearward, the door closing pressure sensor 191b between the back surface portion 163 of the handle 160 and the back surface of the handle guide 210 is compressed. Thereby, the backward movement (closing) of the freezer compartment door 133 is detected. At this time, the handle 160 is configured such that the rear end of the guide protrusion 231 contacts the side wall 242 at the rear of the guide protrusion receiving portion 235 and the rearward movement of the handle 160 is suppressed. Excessive compression is prevented.

  On the other hand, the control unit 250 that controls the door driving device 180 based on the detection result of the door pressurization detection unit 190 may be realized by a microprocessor including a control program, for example.

  As shown in FIG. 10, a door pressurization sensing unit 190 and an electric motor 181 of the door driving device 180 are connected to the control unit 250 in a controllable manner.

  As shown in FIG. 11, the control unit 250 may include a calculation unit 255 that calculates the output of the door driving device 180 based on the detection result of the door pressurization detection unit 190.

  For example, the calculation unit 255 can calculate the output of the electric motor 181 so as to correspond to the physical change amount (for example, the change amount of the capacitance (C)) of the door pressurization sensing unit 190. For example, when the physical change amount (change amount of the capacitance (C)) of the door pressurization sensing unit 190 is small, the output (for example, driving time) of the electric motor 181 is reduced, When the physical change amount is large, the output of the electric motor 181 can be increased. Accordingly, when the user appropriately operates (touches) the handle 160, the movement amount of the door 130 in the opening direction and the closing direction can be appropriately adjusted. Here, the calculation unit 255 can classify the physical change amount of the door pressurization sensing unit 190 into a plurality of levels and calculate the output of the electric motor 181 corresponding to each level. More specifically, for example, the physical change amount of the door pressurization sensing unit 190 is divided into a first level (small), a second level (medium), and a third level (large). In the case of the third level (large), the door 130 is moved from the closed position to the maximum open position (drawing position), and in the case where the physical change amount is the second level (medium), the door 130 is moved by the total moving distance of the door 130. If the physical change amount is the first level (small), the door 130 is moved by a distance shorter than half of the total moving distance (for example, a distance of 1/3 of the total moving distance of the door 130). The output of the electric motor 181 (driving time of the electric motor 181) can be calculated so as to be moved.

  With such a configuration, when the handle 160 of the freezer compartment door 133 is pulled forward to draw the freezer compartment door 133 forward, the handle 160 slides forward with respect to the handle guide 210.

  When the handle 160 moves forward, the door opening pressure sensor 191a provided between the front surface of the handle 160 and the front surface of the handle guide 210 is compressed.

  The control unit 250 controls the electric motor 181 of the door driving device 180 to be driven in the opening direction of the freezer compartment door 133 when a detection signal is input by the door opening pressure detection unit 191a.

  When the electric motor 181 rotates in the opening direction, the pinion 186 rotates, and thereby the rack tooth profile 187 moves relative to each other, whereby the freezer compartment door 133 is pulled out to the front of the refrigerator main body 110 as shown in FIG.

  On the other hand, when the freezer compartment door 133 is moved backward (in the closing direction) to close the freezer compartment 123, the handle 160 of the freezer compartment door 133 is pressurized backward. Then, the handle 160 moves backward with respect to the handle guide 210. When the handle 160 moves rearward, the door closing pressure sensor 191b is compressed.

  When a detection signal is input by the door closing pressure detection unit 191b, the control unit 250 controls the electric motor 181 of the door driving device 180 to be driven in the closing direction of the freezer compartment door 133.

  When the electric motor 181 rotates in the closing direction, the rack tooth profile portion 187 engaged with the pinion 186 moves to the rear region of the refrigerator main body 110. As a result, the freezer compartment door 133 moves rearward and closes the front opening of the freezer compartment 123.

  Hereinafter, another embodiment of the present invention will be described with reference to FIGS.

  For convenience of explanation, the same or corresponding parts as those in the above-described and illustrated configurations will be described by omitting the illustrations, and the same reference numerals will be given, and redundant descriptions of some configurations will be omitted.

  As shown in FIGS. 1 and 12, a refrigerator according to another embodiment of the present invention includes a refrigerator main body 110 having a storage chamber 120, and a handle 260 that is housed and installed in the door main body 151 and the door main body 151 so as to be relatively movable. A door 130 that opens and closes the storage chamber 120, a door driving device 180 that pressurizes the door 130 so as to move in the opening direction or the closing direction, and a handle 260 that is pressed in the opening direction or the closing direction of the door 130. A door pressurization sensing unit 190 that senses this, and a control unit 250 that controls the door driving device 180 based on the sensing result of the door pressurization sensing unit 190 may be included.

  As described above, the freezer compartment door 133 may include the door portion 150 and the basket 170 formed on the back surface of the door portion 150 so that food can be stored.

  The door portion 150 of the freezer compartment door 133 may include, for example, a door main body 151 that opens and closes the front opening of the freezer compartment 123 and a handle 260 that is provided so as to be capable of relative movement with respect to the door main body 151.

The door body 151 may include, for example, an outer plate 152 and an inner plate 154 that is spaced apart from the outer plate 152 with a space for filling the heat insulating material 156 therebetween.
A handle accommodating portion 158 that accommodates the handle 260 in a relatively movable manner may be provided on the front surface of the door main body 151. The handle accommodating portion 158 may be formed to be recessed inward from the front surface of the door main body 151.

A handle guide 270 that guides the movement of the handle 260 may be provided inside the handle accommodating portion 158.
On the other hand, the handle 260 may be rotatably provided in the handle accommodating portion 158.

  As shown in FIGS. 12 and 13, the handle 260 may be realized in a box shape in which a space portion opened downward is formed so that a finger can be inserted therein. For example, the back surface portion 263 of the handle 260 may be formed to extend downward as compared to the front surface portion 261 and the side surface portions 262. The lower portion of the back surface portion 263 may be bent forward so as to correspond to the shape of the handle housing portion 158.

  A rotation shaft 265 for rotating the handle 260 may be provided on both sides of the handle 260.

For example, the rotation shaft 265 may be formed so as to protrude outward from both side surface portions 262 of the handle 260.
The rotation shaft 265 may be provided in a boundary region between the side surface portion 262 and the back surface portion 263 of the handle 260.

The handle guide 270 may be configured to accommodate and support the handle 260 in a rotatable manner.
The handle guide 270 may be realized, for example, in a box shape opened downward so that the handle 260 can be accommodated.

More specifically, the handle guides 270 may be configured to be coupled to each other via the handle 260, for example.
The handle guide 270 may include a body 271 and a cap 272 coupled to one side of the body 271.

In the contact region between the body 271 and the cap 272, flange portions 274 that are coupled to face each other (contact) may be formed.
Each flange portion 274 may be integrally coupled by a plurality of fastening members 218.

  As shown in FIG. 14, inside the body 271 and the cap 272, a turning shaft accommodating portion 278 that rotatably accommodates and supports the turning shaft 265 of the handle 260 may be formed. Here, the rotation shaft 265 may be provided in the handle guide 270, and the rotation shaft accommodating portion 278 may be formed in the handle 260.

  For example, the rotation shaft accommodating portion 278 may be configured with one of a recess and a through hole. In this embodiment, the case where the rotating shaft accommodating part 278 is comprised by the recessed part is illustrated.

  Meanwhile, a door pressurization sensing unit 190 may be provided between the handle 260 and the handle guide 270 to sense when the handle 260 is pressurized in the opening direction or the closing direction of the door 130.

  The door pressure sensor 190 may include a door opening pressure sensor 191a and a door closing pressure sensor 191b.

For example, the door opening pressure sensor 191a may be disposed between the upper surface portion 264 of the handle 260 and the handle guide 270 (the upper surface thereof).
For example, the door closing pressure sensing unit 191b may be disposed between the back surface portion 263 of the handle 260 and the handle guide 270 (the back surface thereof).

  The handle guide 270 may be formed with a pull-out hole 276 so that the cables 197 of the door open pressure sensor 191a and the door close pressure sensor 191b can be pulled out.

  On the other hand, the handle 260 or the handle guide 270 may be provided with a stopper 280 that restricts the movement (rotation) of the handle 260.

The stopper 280 restricts the rotation of the handle 260 so that the door pressure sensing unit 190 is prevented from being excessively compressed.
The stopper 280 may be provided on the handle 260, for example.

  The stopper 280 includes, for example, an upper surface protrusion 281 that protrudes from the upper surface portion 264 of the handle 260 and contacts the upper surface of the handle guide 270, and a back surface protrusion 282 that protrudes from the rear surface portion 263 of the handle 260 and contacts the rear surface of the handle guide 270. It may be provided. Here, it is preferable that the protrusion length of the stopper 280 is set such that the distance between the electrodes 194 is within the sensing range by compressing the door opening pressure sensing unit 191a and the door closing pressure sensing unit 191b.

  A return spring 285 may be provided between the handle 260 and the handle guide 270 to return the handle 260 to the initial position.

When the handle 260 is not operated, the return spring 285 is extended by its own urging force, and the door opening pressure sensor 191a and the door closing pressure sensor 191b are separated without contacting the handle 260 (non-sensing). State).
For example, the return spring 285 may be coupled to the upper surface protrusion 281 and the rear surface protrusion 282, respectively.

  With such a configuration, when the handle 260 of the freezer compartment door 133 is pulled forward in order to pull the freezer compartment door 133 forward, the upper surface portion 264 of the handle 260 moves upward with respect to the handle guide 270 around the rotation shaft 265. To turn.

  As shown in FIG. 15, when the handle 260 rotates upward, the door opening pressure sensor 191 a between the upper surface portion 264 of the handle 260 and the upper surface of the handle guide 270 is compressed. Thereby, opening of the freezer compartment door 133 can be sensed. At this time, the return spring 285 provided on the upper surface protrusion 281 is compressed and accumulates an urging force, and the upper surface protrusion 281 contacts the upper surface of the handle guide 270, so that the door opening pressure sensor 191a is excessively compressed. To prevent it.

  The control unit 250 controls the electric motor 181 of the door driving device 180 to be driven in the opening direction of the freezer compartment door 133 when a detection signal is input by the door opening pressure detection unit 191a.

  When the electric motor 181 rotates in the opening direction, the pinion 186 rotates, and thereby the rack tooth profile 187 moves relative to each other, whereby the freezer compartment door 133 is pulled out to the front of the refrigerator main body 110 as shown in FIG.

  On the other hand, when the freezer compartment door 133 is moved in the closing direction to close the freezer compartment 123, the handle 260 of the freezer compartment door 133 is pressurized rearward as shown in FIG. Then, the back portion 263 of the handle 260 rotates backward with respect to the handle guide 270. When the handle 260 is rotated rearward, the door closing pressure sensor 191b is compressed. Thereby, closing of freezer compartment door 133 can be detected. At this time, the return spring 285 provided on the back projection 282 is compressed and accumulates the urging force, and the back projection 282 contacts the back of the handle guide 270, so that the door closing pressure sensor 191b is excessively compressed. To prevent it.

  The control unit 250 controls the electric motor 181 of the door driving device 180 to be driven in the closing direction of the freezer compartment door 133 when the detection signal is input by the door closing / pressing detection unit 191b.

  When the electric motor 181 rotates in the closing direction, the rack tooth profile portion 187 engaged with the pinion 186 moves to the rear region of the refrigerator main body 110. As a result, the freezer compartment door 133 moves rearward and closes the front opening of the freezer compartment 123.

  On the other hand, when the hand is released from the handle 260, the handle 260 returns to the initial position by the urging force of the return spring 285.

  Hereinafter, still another embodiment of the present invention will be described with reference to FIGS.

  As shown in FIG. 17, a refrigerator according to still another embodiment of the present invention includes a refrigerator main body 110 including a storage chamber 120, a door main body 151, and a handle 160 that is housed and installed in the door main body 151 so as to be relatively movable. A door 130 that opens and closes the storage chamber 120, a rail assembly 360 that is provided between the door 130 and the storage chamber 120 and slidably supports the door 130 and the basket 170, and the door 130 is open or closed. The door driving device 180 that pressurizes to move, the door pressurization sensing unit 190 that senses when the handle 160 is pressurized in the opening direction or the closing direction of the door 130, and the detection result of the door pressurization sensing unit 190 And the rail assembly 360 is coupled to the bottom of the storage chamber 120 or the lower part of both sides thereof. A fixed rail 370 formed by being bent corresponding to the rearward inclined surface 124 of the storage chamber 120 and a moving rail that is coupled to the lower surface of the basket 170 or the lower portions of both side surfaces thereof and is bent and slides with respect to the fixed rail 370. 390.

  The storage room 120 includes, for example, a refrigeration room 121 provided in the upper part of the refrigerator main body 110, a freezing room 123 provided in the lower part of the refrigerator main body 110, and a switching room 125 provided between the refrigeration room 121 and the freezing room 123. It may be provided with.

  In the present embodiment, the case where the storage room 120 is configured to include a refrigeration room 121, a freezing room 123, and a switching room 125 is illustrated. However, as shown in FIGS. You may be comprised from the refrigerator compartment 121 provided and the freezer compartment 123 with which the refrigerator compartment 121 is provided below.

A machine room 127 may be provided in the lower rear region of the refrigerator main body 110.
A compressor 128 may be provided inside the machine room 127.
On the other hand, a rear inclined surface 124 that is inclined upward may be formed in the lower rear portion of the freezer compartment 123.
The rear inclined surface 124 may be formed so as to partition the freezer compartment 123 and the machine compartment 127.

  In the present embodiment, a so-called bottom freezer type refrigerator in which the freezer compartment is disposed below the refrigerator compartment is illustrated, but the rail assembly 360 according to the present invention has an inclined surface formed in the rear lower portion of the storage compartment, The present invention can be applied to all refrigerators (including kimchi refrigerators) configured such that the storage room is opened and closed by a drawer door.

  The freezer compartment 123 may be provided with a freezer compartment door 133.

The freezer compartment door 133 may be constituted by a pull-out door.
The freezer compartment door 133 may be configured to include, for example, a door portion 150 that opens and closes the front opening of the freezer compartment 123 and a basket 170 that is provided on the back surface of the door portion 150 and stores food.

  A cool air flow space 172 may be formed between the basket 170 and the bottom surface of the freezer compartment 123 so that the cool air in the freezer compartment 123 flows.

  In this embodiment, the case where the handle 160 is provided in the door part 150 is illustrated, but the door 260 may be provided with the handle 260 described above.

  The freezer compartment door 133 may include a door pressurization sensing unit 190 and a door driving device 180.

  Since the handle 160, the door driving device 180, the door pressurization sensing unit 190, and the control unit 250 are the same as those in the above-described embodiment, the description thereof will be omitted, and the rail assembly 360 will be described in detail below.

  The freezer compartment door 133 may be provided with a pair of rail assemblies 360.

  As shown in FIG. 18, the rail assembly 360 according to the present embodiment may be disposed at a lower portion (lower side) of the basket 170.

  The basket 170 is configured to have a left-right width W4 that is substantially the same as the left-right width (inner width) W1 of the freezer compartment 123, except for the play C for storing the basket 170. Thereby, the storage space of the basket 170 increases.

  The rail assembly 360 is coupled to the bottom surface of the freezer compartment 123 and bent to correspond to the rear inclined surface 124 of the freezer compartment 123, and is coupled to the lower surface of the basket 170 to the fixed rail 370. A moving rail 390 that partially bends and slides may be included.

  The fixed rail 370 may have a housing space formed therein, and the movable rail 390 may be inserted and coupled to the fixed rail 370 so as to be drawn out.

  The rail assembly 360 further includes, for example, a plurality of ball bearings 372 inserted between the fixed rail 370 and the movable rail 390, and a retainer 374 that supports the plurality of ball bearings 372 so as to maintain a distance therebetween. But you can.

The rail assembly 360 may be configured such that, for example, a plurality of ball bearings 372 and retainers 374 are inserted in pairs on both sides.
The moving rail 390 may be formed to be slidable inside the fixed rail 370.

Further, one side of the fixed rail 370 and one side of the moving rail 390 may be formed so as to surround the ball bearing 372.
For example, the fixed rail 370 may include a curved surface portion 373 that is bent so that a part of the ball bearing 372 can be accommodated and supported.

The moving rail 390 may include a curved surface portion 393 that is bent so that a part of the ball bearing 372 can be accommodated and supported.
Further, the ball bearing 372 and the retainer 374 may not be provided as long as the movable rail 390 can be slid while maintaining the state of being inserted into the fixed rail 370.
The moving rail 390 is made of a material in which at least a part of the rear part can be deformed.

The fixed rail 370 may be fixed across the bottom surface of the freezer compartment 123 and the rear inclined surface 124.
The fixed rail 370 may include a horizontal portion 371 a disposed on the bottom surface of the freezer compartment 123 and an inclined portion 371 b disposed on the rear inclined surface 124.

  A bent portion 371c may be provided in a boundary region between the horizontal portion 371a and the inclined portion 371b.

The moving rail 390 is variable in correspondence with the fixed portion 392 corresponding to the horizontal portion 371a of the fixed rail 370 and the horizontal portion 371a and the inclined portion 371b of the fixed rail 370 at the position where the moving rail 390 is inserted to the fixed rail 370 at the maximum. The variable part 394 may be included.
The fixed portion 392 of the moving rail 390 may be coupled to the lower surface of the basket 170 by a coupling member 410 such as a screw.

  Further, the basket 170 may be coupled to the door unit 150, and the basket 170 may be pulled out together with the moving rail 390 when the user pulls the handle 160 of the freezer compartment door 133 forward.

  The variable portion 394 of the moving rail 390 may be deformable by making the material itself deformable. For example, the variable portion 394 of the moving rail 390 may be made of rubber or resin.

  In general, each rail of the rail assembly is made of metal so as to reduce friction and not easily deform.

  That is, the fixed portion 392 and the fixed rail 370 of the moving rail 390 may be made of metal, and the variable portion 394 of the moving rail 390 may be made of rubber or resin material.

  When the variable portion 394 of the movable rail 390 passes through the bent portion 371c of the fixed rail 370, it is bent (deformed) corresponding to the inclined portion 371b, and when it is pulled out through the bent portion 371c, it is straight. It may be configured to expand (deform). Here, the variable portion 394 may be configured to have a strength capable of supporting the freezer compartment door 133 in the same manner as the fixed portion 392 when deployed in a straight line.

As described above, the variable portion 394 of the moving rail 390 may be made of a deformable material.
Further, the variable portion 394 of the moving rail 390 may be configured to be made of a hard metal such as a chain and bend in one direction (upward in the present embodiment).

The rail assembly 360 may have a cross-sectional profile that is close to a rectangle.
When the rail assembly 360 is disposed on the lower surface of the basket 170, the long side of the rectangular cross section is preferably disposed horizontally.
Since the rail assembly 360 is installed in the cold air flow space 172 formed between the basket 170 and the bottom surface of the freezer compartment 123, it is not necessary to provide a separate installation space for the rail assembly 360.

  Here, when the height (or thickness) of the rail assembly 360 is higher than the height of the cold air flow space 172, a part of the rail assembly 360 can be inserted into the lower surface of the basket 170 and / or the bottom surface of the freezer compartment 123. A groove (not shown) may be formed as described above. In this case, a groove is formed on the lower surface of the basket 170 so that a part of the moving rail 390 is accommodated, or a groove is formed on the bottom surface of the freezer compartment 123 so that a part of the fixed rail 370 is accommodated. Alternatively, grooves may be formed on both the lower surface of the basket 170 and the bottom surface of the freezer compartment 123.

  In the present embodiment, the case where the long sides of the rectangular cross section of the rail assembly 360 are horizontally disposed is illustrated, but may be disposed vertically. In the present embodiment, the long side of the rectangular cross section of the rail assembly 360 is horizontally arranged inside the cold air flow space 172 so that the rail assembly 360 can be installed without providing a separate installation space for the rail assembly 360. ing.

  The freezer compartment door 133 may be provided with a frame 134 that supports the basket 170.

  The case where the moving rail 390 of the rail assembly 360 is directly coupled to the basket 170 has been described above. In this case, the freezer compartment door 133 may be coupled to the front portion of the basket 170.

  On the other hand, when the frame 134 is coupled between the freezer compartment door 133 and the rail assembly 360, the frame 134 is coupled to the inner surface of the freezer compartment door 133, and the basket 170 is supported on the upper surface of the frame 134. The moving rail 390 may be coupled to the lower portion of the frame 134 with a screw or the like.

  Since the basket 170 is mainly molded of plastic and the frame 134 is made of metal, the freezer compartment door 133 is connected to the rail assembly 360 via the frame 134 that is stronger than being directly coupled to the basket 170. It may be combined.

  Hereinafter, the operation of the refrigerator according to still another embodiment of the present invention will be described with reference to FIGS. 19 and 20.

  As shown in FIG. 19, when the freezer compartment door 133 is pulled forward while the basket 170 is housed inside the freezer compartment 123, the basket 170 and the moving rail 390 are pulled forward.

At this time, the variable portion 394 of the moving rail 390 passes through the bent portion 371c of the fixed rail 370, changes its angle sequentially, and expands (deforms) in a straight line.
The variable portion 394 of the moving rail 390 is further drawn forward along the horizontal portion 371a after passing through all the bent portions 371c of the fixed rail 370.

When the moving rail 390 is pulled out to the maximum pulling point, the pulling is restricted by a stopper (not shown) provided between the moving rail 390 and the fixed rail 370.
When the moving rail 390 is pulled out to the maximum, it may be preferable to maintain the state where the entire variable portion 394 of the moving rail 390 and a part of the fixed portion 392 are inserted into the horizontal portion 371a of the fixed rail 370. .

  This is because, when the moving rail 390 is pulled out, the moment is received due to the weight of the basket 170, which must be supported. However, when only the variable portion 394 of the moving rail 390 is inserted into the fixed rail 370, the supporting force is increased. This is because there is a case that is inferior.

  However, in this case, the pull-out distance of the moving rail 390 may be limited, and further including the intermediate rail 380 (see FIGS. 21 and 22) as in the embodiment described later sufficiently increases the pull-out distance. More preferable.

  Hereinafter, a modified example of the refrigerator according to still another embodiment of the present invention will be described with reference to FIGS.

  The refrigerator according to the present embodiment is different from the above-described embodiment in that the rail assembly 360 is coupled to lower portions on both side surfaces of the freezer compartment 123, and the rail assembly 360 further includes an intermediate rail 380.

  As shown in FIG. 21, the rail assembly 360 may be coupled between the lower portion of the inner surface of the freezer compartment 123 and the lower portion of the outer surface of the basket 170.

  The basket 170 is preferably formed in a concave shape so that the rail assembly 360 can be used as a storage space up to a space above the rail assembly 360. Accordingly, the basket 170 is configured to have a left-right width W4 that is substantially the same as the left-right width (inner width) W1 of the freezer compartment 123 except for play C for storage.

  The basket 170 may be provided with a rail coupling portion 395 so that a region of the rail assembly 360 (eg, the moving rail 390) can be coupled.

For example, the rail coupling portion 395 may be formed at the lower portions on both sides of the basket 170, respectively.
The rail coupling part 395 may be formed with a predetermined width and height so as to accommodate one region of the rail assembly 360, for example.
The rail coupling portion 395 may be configured to include, for example, a vertical wall portion 396 and a horizontal wall portion 397.

  In the present embodiment, the case where the rail coupling portion 395 is formed at both lower portions of the basket 170 is illustrated, but the rail coupling portion 395 includes the vertical wall portion 396 and the horizontal wall portion 397 of the rail coupling portion 395 in the freezer compartment. It may be configured to be formed on both side walls of 123 respectively.

  A frame 134 (see FIGS. 24 to 26) is coupled and fixed to the back surface of the freezer compartment door 133, and a basket 170 is coupled and supported inside the frame 134, and a rail is disposed outside the frame 134. An assembly 360 is coupled to support the frame 134 in a releasable manner.

  The frame 134 is not shown in FIGS. 21-23, but may be coupled between the basket 170 and the rail assembly 360 (see FIGS. 24-26).

  As shown in FIG. 22, the basket 170 may be formed so that at least a part of the back surface thereof is inclined corresponding to the rearward inclined surface 124 of the freezing chamber 123.

  The rail assembly 360 is coupled to the lower portion of the freezer compartment 123 and fixed thereto, the intermediate rail 380 coupled to the frame 134 and slides relative to the fixed rail 370, and slides relative to the intermediate rail 380. A moving rail 390 may be included.

  The fixed rail 370 may include a horizontal portion 371 a formed corresponding to the bottom surface of the freezer compartment 123 and an inclined portion 371 b formed corresponding to the rear inclined surface 124 of the freezer compartment 123. The fixed rail 370 may include a bent portion 371c formed in a boundary region between the horizontal portion 371a and the inclined portion 371b.

  The angle between the horizontal portion 371a and the inclined portion 371b may be the same as the angle between the rear inclined surface 124 and the bottom surface, for example.

  The moving rail 390 is coupled to the outside of the frame 134 and slides when the horizontal portion 371a and the inclined portion 371b of the fixed rail 370 slide and passes through the bent portion 371c between the horizontal portion 371a and the inclined portion 371b. To be deformed.

  As described above, the moving rail 390 may include a fixed portion 392 that slides the horizontal portion 371a of the fixed rail 370 and a variable portion 394 that slides the horizontal portion 371a and the inclined portion 371b of the fixed rail 370.

  Also in this embodiment, similarly to the above-described embodiment, the fixing portion 392 may be made of metal, and the variable portion 394 may be made of rubber or resin whose shape can be deformed.

  As shown in FIG. 21, a plurality of ball bearings 372 and a retainer 374 that maintains and supports these ball bearings 372 may be provided between the fixed rail 370 and the intermediate rail 380.

  For this purpose, the fixed rail 370 and the intermediate rail 380 may be provided with curved surface portions 373 and 383 on the sides thereof so that a plurality of ball bearings 372 can be accommodated therein.

In addition, a plurality of ball bearings 372 and a retainer 374 that supports and maintains a distance therebetween may be provided between the intermediate rail 380 and the moving rail 390.
Similarly, the intermediate rail 380 and the movable rail 390 may be provided with curved surface portions 384 and 393 on the sides thereof so that a plurality of ball bearings 372 can be accommodated therein.

  Hereinafter, an operation of a modified example of the refrigerator according to still another embodiment of the present invention will be described with reference to FIGS. 22 and 23.

  As shown in FIG. 22, when the freezer compartment door 133 is pulled while the basket 170 is housed in the freezer compartment 123, the rail assembly 360 slides and the freezer compartment door 133 and the basket 170 are pulled out together.

  At this time, the moving rail 390 slides with respect to the fixed rail 370, but the variable portion 394 of the moving rail 390 descends along the inclined portion 371b of the fixed rail 370, and the distal end portion of the fixed portion 392 of the moving rail 390 is fixed. It protrudes from the rail 370.

  At the same time, the variable portion 394 of the movable rail 390 passes through the bent portion 371c between the horizontal portion 371a and the inclined portion 371b of the fixed rail 370, and the bent portion is continuously deformed to form a straight line. Expand to.

  When the basket 170 is further pulled out and the moving rail 390 is further pulled out, the intermediate rail 380 starts to slide with the moving rail 390 and can be pulled out until more than half of the intermediate rail 380 protrudes from the fixed rail 370.

  As shown in FIG. 23, when the basket 170 is pulled out to the maximum, the rear end portion of the basket 170 is exposed to the outside of the freezer compartment 123.

  In this state, the moving rail 390 is disposed such that a part of the rear portion of the fixed portion 392 overlaps with the intermediate rail 380 by a predetermined distance or more, so that the weight of the food stored in the basket 170 and / or the freezer compartment door 133 is obtained. Can be supported.

  The present invention has been illustrated and described with respect to specific embodiments. However, the present invention can be implemented in various ways without departing from the spirit or essential features thereof, and is not limited by the contents of the detailed description of the above embodiment.

  It should be noted that embodiments that are not shown in the above detailed description should be broadly interpreted within the scope of the technical idea defined in the appended claims. In addition, all changes and modifications included in the technical scope of the claims and their equivalents should be included in the claims.

DESCRIPTION OF SYMBOLS 110 Refrigerator main body 120 Storage room 121 Refrigeration room 123 Freezing room 125 Switching room 127 Machine room 128 Compressor 130 Door 131 Refrigeration room door 132 Hinge 133 Freezing room door 135 Switching room door 140 Rail assembly 141 Fixed rail 142 Moving rail 143 Intermediate rail DESCRIPTION OF SYMBOLS 150 Door part 151 Door main body 152 Outer plate 154 Inner plate 156 Heat insulating material 160 Handle 161 Front part 162 Side part 163 Rear part 180 Door drive device 181 Electric motor 185 Power transmission part 186 Pinion 187 Rack tooth profile part 191a Door pressure sensing part 191a Door opening pressure sensor 191b Door closing pressure sensor 192 Dielectric layer 194 Electrode 195 Terminal 197 Cable 210 Handle guide 211 First handle guide 212 Second handle guide 213 Franc Part 215 extraction port 217 fastening member insertion hole 218 fastening member 219 volts (screw)
220 Nut 230 Guide part 231 Guide protrusion 235 Guide protrusion accommodating part 240 Stopper 241 (Front) side wall part 242 (Back) side wall part 250 Control part 255 Calculation part

Claims (17)

A refrigerator body with a storage room;
A door body disposed on the front surface of the storage chamber and a handle that is housed and installed in the door body so as to be capable of relative movement; a door that opens and closes the storage chamber;
A door driving device that pressurizes the door so that the door moves in an opening direction or a closing direction;
A door pressurization sensing unit that senses when the handle is pressurized in the opening or closing direction of the door;
Look contains a control section for controlling the door drive device based on a detection result of the door pressing detection unit,
The door body is
A handle accommodating portion recessed so as to accommodate the handle;
A handle guide provided inside the handle housing portion for guiding movement in the opening direction and movement in the closing direction of the handle;
The door pressure sensing unit is disposed inside the handle guide so as to be pressurized by the handle when the handle is moved in the opening direction and in the closing direction, respectively.
The handle or the handle guide is provided with an opening direction movement and a closing direction movement of the handle so as to prevent the door pressure sensing unit from being excessively compressed by the opening direction movement or the closing direction movement of the handle. A refrigerator provided with a limiting stopper .   2. The refrigerator according to claim 1, wherein the door pressurization sensing unit includes an elastically deformable dielectric layer and electrodes disposed on opposing surfaces of the dielectric layer.   The refrigerator according to claim 2, wherein the door pressurization sensing unit includes a door open pressurization sensing unit that senses when the handle is pressurized in the opening direction of the door. The handle is provided to be movable in the front-rear direction of the refrigerator body,
The refrigerator according to claim 3 , wherein the door opening pressure sensing unit is provided between a front surface of the handle and the handle guide . The handle is provided to be rotatable in the vertical direction of the refrigerator body,
The refrigerator according to claim 3 , wherein the door opening pressure sensing unit is provided between an upper surface of the handle and the handle guide . The refrigerator according to claim 5 , further comprising a return spring that returns the handle to an initial position. The said door pressurization detection part is a refrigerator as described in any one of Claims 1-6 provided with the door closing pressurization detection part which senses it, when pressurizing the said handle in the closing direction of the said door. The refrigerator according to claim 7 , wherein the door closing pressure sensing unit is provided between a back surface of the handle and the handle guide . The door drive includes an electric motor for generating a driving force of the door, and a power transmission unit for transmitting a rotational force to the door of the electric motor, according to any one of claims 1-8 refrigerator. The refrigerator according to any one of claims 1 to 9 , further comprising a calculation unit that calculates an output of the door driving device based on a detection result of the door pressurization detection unit. A rear surface of the storage room is provided with an inclined surface inclined upward to the rear,
The door includes a basket that is provided in the door body and stores food,
A rail assembly that slidably supports the door and the basket is provided between the door and the storage chamber,
The rail assembly is coupled to the bottom of the storage chamber or the lower part of both side surfaces, and is formed to be bent corresponding to the inclined surface of the storage chamber;
The refrigerator according to any one of claims 1 to 10 , further comprising a moving rail that is provided in the basket and that is partially bent and slides relative to the fixed rail. The refrigerator according to claim 11 , wherein the fixed rail includes a horizontal portion disposed on a bottom surface of the storage chamber and an inclined portion disposed on the inclined surface. The moving rail includes a fixed portion corresponding to a horizontal portion of the fixed rail and a variable portion that varies corresponding to a horizontal portion and an inclined portion of the fixed rail at a position where the moving rail is inserted to the fixed rail to the maximum. The refrigerator according to claim 12 . The fixed rail is coupled to a bottom surface of the storage chamber,
The refrigerator according to any one of claims 11 to 13 , wherein the moving rail is coupled to a lower surface of the basket and is slidably coupled on the fixed rail. The fixed rail is coupled to a lower side of the storage chamber,
The refrigerator according to any one of claims 11 to 13 , wherein the moving rail is coupled to a lower side portion of the basket and is slidably coupled to the inside of the fixed rail. The refrigerator according to claim 15 , wherein a rail coupling portion recessed inward is formed on at least one of the side wall of the storage chamber and the side surface of the basket so as to couple a region of the rail assembly. The rail assembly further comprises an intermediate rail provided between the movable rail and the fixed rail, the movable rail is relatively slidably coupled to the intermediate rail, according to claim 15 or 16 Refrigerator.

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