A sound-insulating refrigerator vacuum assembly, comprising a sealed box receiving a vacuum pump, the sealed box body comprises an upper sealing body and a lower sealing body, the upper sealing body and the lower sealing body can be snap-fitted to define a receiving cavity, and the vacuum pump is placed in the receiving cavity; the vacuum assembly further comprises an air pipe member, the air pipe member comprises an air inlet pipe, an air outlet pipe and a base plate that are integrally formed, and the air inlet pipe and the air outlet pipe are disposed through the base plate; a notch portion is provided in the sealed box, and an outer edge of the base plate matches the notch portion in shape; the vacuum pump is connected with a muffler.

A refrigerator having oxygen control and freshness keeping functions, comprising a refrigerator body. The refrigerator body has a compressor bin and a refrigerator compartment. The refrigerator further comprises an oxygen control device. The oxygen control device comprises a gas-regulating membrane assembly and a gas extraction assembly. The gas-regulating membrane assembly has at least one gas-regulating membrane. The gas extraction assembly is disposed outside the refrigerator compartment, and is provided with a gas extraction pump. The gas extraction pump has a gas inlet pipe communicated with the gas outlet side of the gas-regulating membrane and a gas outlet pipe for exhausting the gas from the gas outlet side of the gas-regulating membrane to the compressor bin so as to cool a compressor.

A vacuum insulated refrigerator structure with a vacuum core material filled in around an elongated umbilical. The vacuum insulated refrigerator structure is made of a shell having a liner and a wrapper wherein the shell forms an internal cavity. A gas permeable casing surrounds the entire length of the elongated umbilical passing through the internal cavity of the shell. A vacuum tube is inserted at a first opening between the gas permeable casing and the elongated umbilical and a second end of the elongated umbilical is coupled to the shell at a second opening in the liner. A vacuum is formed in the internal cavity of the shell through the vacuum tube while adding the vacuum core material fill. In the shell, an elongated umbilical has one or more elongated internal passageways wherein the one or more utility lines may be routed through the one or more elongated internal passageways.

The present disclosure relates to a vacuum preservation device, comprising a drawer including a drawer panel at the front end of the drawer, and a handle assembly. A The handle assembly is coupled to the drawer panel, wherein the handle assembly includes a door body sealing member and a handle. A preservation container body comprises a preservation container body fixing part and a preservation container body sliding part. An electric push rod is coupled to the preservation container body and is coupled to the preservation container body sliding part and to the preservation container body fixing part.

The present invention discloses a seal including a buckling portion. The buckling portion is composed of two H-shaped members that are flexibly connected. The two H-shaped members can be buckled with each other to form a mounted state. The H-shaped member has a first arm and a second arm which are parallel to each other, and a connecting portion which connects the first arm and the second arm. The connecting portion has an arcuate surface. The arcuate surfaces of the two H-shaped members cooperatively define a hollow cavity when the two H-shaped members are in the mounted state. The present invention further discloses a vacuum assembly and a refrigerator which comprise the seal described above.

A vacuum adiabatic body includes a first plate configured to define at least a portion of a wall for a first space, a second plate configured to define at least a portion of a wall for a second space having a temperature different from that of the first space, and a support configured to maintain the third space. The support includes a coupling mechanism by which a first support plate and a second support plate are coupled to each other and integrated with each other and a seating mechanism configured to maintain a gap between the first support plate and the second support plate at points at which the first support plate and the second support plate contact each other. The seating mechanisms are spaced apart from the coupling mechanism.

A freshness-preserving container for food, includes a shell with a cover which can be sealingly placed on the shell. The freshness-preserving container has a mechanically operating low-pressure generating unit with which an air pressure that is reduced compared to the surrounding area outside of the freshness-preserving container can be adjusted in the freshness-preserving container. The low-pressure generating unit has an actuating element which can be moved relative to the freshness-preserving container, and air can be suctioned out of the freshness-preserving container dependent on the movement of the actuating element. A domestic refrigerator including a freshness-preserving container is also provided.

A vacuum insulated refrigerator structure with a vacuum core material filled in around an elongated umbilical. The vacuum insulated refrigerator structure is made of a shell having a liner and a wrapper wherein the shell forms an internal cavity. A gas permeable casing surrounds the entire length of the elongated umbilical passing through the internal cavity of the shell. A vacuum tube is inserted at a first opening between the gas permeable casing and the elongated umbilical and a second end of the elongated umbilical is coupled to the shell at a second opening in the liner. A vacuum is formed in the internal cavity of the shell through the vacuum tube while adding the vacuum core material fill. In the shell, an elongated umbilical has one or more elongated internal passageways wherein the one or more utility lines may be routed through the one or more elongated internal passageways.

A vacuum adiabatic body includes a first plate configured to define at least a portion of a wall for a first space, a second plate configured to define at least a portion of a wall for a second space having a temperature different from that of the first space, and a support configured to maintain the third space. The support includes a coupling mechanism by which a first support plate and a second support plate are coupled to each other and integrated with each other and a seating mechanism configured to maintain a gap between the first support plate and the second support plate at points at which the first support plate and the second support plate contact each other. The seating mechanisms are spaced apart from the coupling mechanism.

A distributed refrigeration system is provided. The distributed refrigeration system comprises a pre-cooling system configured to be thermally coupled to two or more cryogenic devices and to provide a first cooling stage to the two or more cryogenic devices. The two or more cryogenic devices may be two or more of a dilution refrigerator, a low-temperature microscopy system, a .sup.3He refrigeration system, and/or a superconducting CMOS system.