The storage device is adapted to store a plurality of objects, such as sample tube holders, at several low temperatures, e.g., at −80° C. and at −110° C. The storage device includes a storage chamber with a plurality of storage cassettes arranged in its bottom section. A cassette lift in its top section can be used to lift individual storage cassettes up and to move them to an access opening, where the contents of the storage cassette can be accessed. The bottom section is divided into several, concentric storage zones, with the innermost, first storage zone being colder than the outer, second storage zone. A first insulating wall separates the two storage zones. This design reduces the thermal losses of the storage device. A refrigerant circuit with a non-inflammable cryo-liquid is provided for carrying off heat from the first storage zone.

A refrigerator includes an upper door, a lower door positioned below the upper door and configured to be extended out of and retracted into the lower storage chamber, wherein the lower door includes a drawer part having a storage space and a door part configured to open and close the lower storage chamber, respectively, a draw-out, an ascending and descending mechanism provided at the drawer part and configured to ascend and descend the storage space, a driving mechanism provided at the door part and configured to provide a driving force to the ascending and descending mechanism, a controller to control the driving mechanism, a microphone module provided at the upper door and configured to receive a voice input from a user, and a voice recognition module to allow the controller to control the driving mechanism in response to the voice input from the user.

A refrigerator includes: a cabinet having a storage space; a door including a door unit to open or close the storage space and a drawer unit to provide a receiving space; a driving device disposed at the door unit and configured to provide power; and an elevation device disposed at the drawer unit, connected with the driving device, and configured to move up or down, in which the driving device includes: a motor assembly including a driving motor, a screw rotated by power from the driving motor and extending in an up-down direction, and a movable unit to move up and down along the screw; and a pair of lever units connected to the movable unit at both sides of the motor assembly, and each of the pair of lever units includes: a first lever connected to the movable unit; and a second lever connected with the first lever and connected with the elevation device.

A refrigerator is provided. The refrigerator includes a storeroom lifted when the storeroom is pulled out and giving a degree of freedom to a lifting method. The refrigerator includes a main body, a door arranged to be pulled out from the main body, a storeroom arranged to be pulled out from the main body along with the door, and a lift device arranged to lift or lower the storeroom in connection with pulling-out or pushing-in of the door, wherein the lift device includes a guide including a portion sloping upward or downward in a pull-out direction of the storeroom, and a guidee guided by the guide so that the storeroom is lifted when the guidee is moved along the guide.

A refrigerator includes a cabinet that defines a lower storage space, a front panel door part, a drawer part connected to the front panel door part, a support member located at the drawer part and configured to seat one or more objects stored in the drawer part, at least one draw-out rail that is configured to connect the drawer part to an inner wall surface of the lower storage space, and that is configured to extend and retract in multiple stages to assist insertion and withdrawal of the drawer part based on movement of the front panel door part, and at least one elevation device that is located at each of both side surfaces of the drawer part, that is connected to each of both sides of the support member, and that is configured to elevate the support member relative to the drawer part.

A refrigerator includes: a cabinet; an upper door; a lower door that is a drawer type door; a draw-out rail that connects the lower door to a storage space in the cabinet and that guides insertion and withdrawal of the lower door in a front-rear direction; an elevation assembly that is located in the lower door, that elevates an object stored in the lower door in a state in which the lower door is withdrawn, and that elevates the object relative to the lower door; and a door restriction device configured to selectively restrict an opening movement of the upper door based on whether the lower door is opened or closed. The door restriction device is configured to restrict the opening movement of the upper door based on the lower door being opened, and to allow the opening movement of the upper door based on the lower door being closed.

A refrigerator includes: a cabinet; an upper door; a lower door that is a drawer type door; a draw-out rail that connects the lower door to a storage space in the cabinet and that guides insertion and withdrawal of the lower door in a front-rear direction; an elevation assembly that is located in the lower door, that elevates an object stored in the lower door in a state in which the lower door is withdrawn, and that elevates the object relative to the lower door; and a door restriction device configured to selectively restrict an opening movement of the upper door based on whether the lower door is opened or closed. The door restriction device is configured to restrict the opening movement of the upper door based on the lower door being opened, and to allow the opening movement of the upper door based on the lower door being closed.

Disclosed is a biological sample storage and retrieval apparatus, comprising a storage device, with the interior thereof being a cryogenic environment for storing a biological sample, and the biological sample comprising cryogenic vials and a cryogenic shelf for holding the cryogenic vials; an operation device detachably connected to the storage device for receiving a transfer tank for holding the biological sample and performing storage and retrieval of the biological sample in the storage device by means of the transfer tank; and a sealing device, the sealing device being used for sealing the storage device when the storage device is detached from the operation device. A cryogenic storage and retrieval method is also provided.

Disclosed is a biological sample storage and retrieval apparatus, comprising a storage device, with the interior thereof being a cryogenic environment for storing a biological sample, and the biological sample comprising cryogenic vials and a cryogenic shelf for holding the cryogenic vials; an operation device detachably connected to the storage device for receiving a transfer tank for holding the biological sample and performing storage and retrieval of the biological sample in the storage device by means of the transfer tank; and a sealing device, the sealing device being used for sealing the storage device when the storage device is detached from the operation device. A cryogenic storage and retrieval method is also provided.

An insulated structure includes a door that has a liner and a wrapper. The liner defines at least one channel. At least one attachment feature is disposed within the at least one channel defined by the liner and coupled to the door. The at least one attachment feature includes a body that has a plurality of apertures that are defined along a length of the body. A bin is operably coupled to the door via the at least one attachment feature. The bin includes a coupling feature that extends through at least one of the plurality of apertures that are defined by the body.