Abstract: An installation foot and a refrigerator having same, the installation foot including: a support base, a part of which forms a first step portion and a second step portion; a roller wheel, rollably disposed below the second step portion; and an adjustment portion, provided with a screw rod and an adjustment rotary disc, the screw rod being rotatably disposed on the first step portion, and the adjustment rotary disc being fixedly connected to the screw rod or integrated with the screw rod to form a one-piece part so as to drive the screw rod to rotate. In an installation process, the roller wheel is able to roll along a supporting surface on which the installation foot is located, and the screw rod can rotate relative to the support base, so that the installation foot is suitable for both a leveling process and a moving process of an apparatus.

Abstract: Provided are an installation foot and a refrigerator having same, the installation foot including: a support base, a part of which forms a support platform; a roller wheel, rollably disposed below the support platform; a first adjustment portion, provided with a first screw rod and a first adjustment rotary disc, the first screw rod being rotatably disposed on the support platform, and the first adjustment rotary disc being fixedly connected to the first screw rod or integrated with the first screw rod to drive the first screw rod to rotate; and a second adjustment portion, provided with a second screw rod and a second adjustment rotary disc, the second screw rod being rotatably disposed on the support platform, and the second adjustment rotary disc being fixedly connected to the second screw rod or integrated with the second screw rod to drive the second screw rod to rotate.

Abstract: An air-cooled refrigerator supplying air through a centrifugal fan, comprising a bottom liner, an air duct back plate, and the centrifugal fan. A cooling chamber and a storage space are defined in the bottom liner; the air duct back plate is provided in the-front of a back wall of the bottom liner, and defines an air supply duct with the back wall of the bottom liner; the centrifugal fan comprises a volute and an impeller; the volute is arranged obliquely upwards from front to back at the back of the cooling chamber, and a fan cavity and a gradually widened exhaust cavity are defined in the volute; the fan cavity is formed into a continuous spiral; the gradually widened exhaust cavity is gradually widen backwards from the fan cavity; the impeller is provided in the fan cavity; and the inner wall face of the fan cavity is continuous and smooth.

Abstract: An engagement assembly, a drawer, and a refrigerator having same. The engagement assembly comprises a first engagement part matching the drawer and a second engagement part matching a refrigerator body; one of the first and second engagement parts is a gear, and the other one is a rack; the rack has a tooth surface that allows the gear to travel; the rack comprises a main rack and an extension rack; when the drawer is in a closed state, the tooth surface has a first stroke length; when the drawer is in an opening process, the extension rack moves to a travel path of the gear so that the tooth surface has a second stroke length; when the drawer is in a closing process, the extension rack is reset; the first stroke length is smaller than the second stroke length. The length of the tooth surface increases in the opening process.

Abstract: A method for determining phase locking of critical arc light includes: step 1: monitoring and collecting light radiation intensity of an arc inside a switch cabinet in real time, and converting the collected light radiation intensity into an electrical signal; step 2: extracting a power-frequency fundamental wave of the electrical signal, comparing an amplitude of the power-frequency fundamental wave of the electrical signal with a first threshold, and generating a pre-warning signal based on a comparison result of the first threshold; step 3: comparing the amplitude of the power-frequency fundamental wave of the electrical signal with a second threshold voltage, and generating a control signal based on a comparison result of the second threshold voltage and a protection time threshold; and step 4: protecting the switch cabinet under the critical arc light environment based on the pre-warning signal and the control signal.

Abstract: The present invention discloses a refrigerator, comprising a compressor compartment disposed in its lower rear portion thereof, wherein the back plate of the compressor compartment has a first air port and a second air port, and the bottom plate is provided with a third air port. The refrigerator further comprises a baffle movably disposed at the first air port to open or close the first air port. The baffle may prevent the hot air discharged from the compressor compartment from blending with cold air and re-entering the compressor compartment after the refrigerator is embedded in the cupboard.

Abstract: Provided in the application is a refrigerator. The refrigerator may comprise: a cabinet having a cooling chamber and at least one storage chamber, and an air duct assembly installed on the cabinet. The air duct assembly has a plurality of air duct layers sequentially arranged in a longitudinal direction of the cabinet; and each of the air duct layers has one or more air ducts.

Abstract: Disclosed is a vacuum insulator, comprising: a metal plate; a glass plate arranged facing and spaced apart from the metal plate; and a sealing structure arranged between the metal plate and the glass plate for fixing the metal plate and the glass plate in a sealed manner, with a vacuum cavity being defined between the metal plate and the glass plate. The vacuum insulator is impact-resistant, has a stable structure, and can be independently used for manufacturing an insulated container. The insulated container having the vacuum insulator is also involved.

Abstract: An installation device for a built-in refrigerator, comprising: a fixing frame, provided on a bottom plate of a refrigerator in a front-back extension direction of the refrigerator; and at least one guide block, disposed on the fixing frame, the bottom of the guide block being provided with a groove parallel to the front-back extension direction of the refrigerator, and the groove being configured to match a guide rail portion pre-installed on the ground where an installation space is located, to limit the refrigerator to move in the front-back direction, so that the refrigerator can move backward along a preset path to reach an installation position.

Abstract: A vacuum adiabatic body and a refrigerator having the vacuum adiabatic body. The vacuum adiabatic body comprises: a first plate, the first plate having a first thickness; a second plate spaced apart from the first plate in an opposite manner, the second plate having a second thickness, and the first thickness being greater than the second thickness; and sealing members arranged between the first plate and the second plate and configured to seal and fix the first plate and the second plate, a vacuum cavity being defined among the first plate, the second plate, and the sealing members. According to the vacuum adiabatic body, convection heat transfer can be reduced by vacuumizing between two plates which are sealingly connected; and the whole vacuum insulation body is stable in structure and not too heavy.

Abstract: A refrigeration module, comprising: a module body, in which an installation space is defined; and a refrigeration system disposed in the installation space for use in generating cold, wherein a cold supply port is provided on the module body, the cold supply port is configured to be detachably connected to an external pipeline, and the cold generated by the refrigeration system is supplied to the external pipeline by the cold supply port. Further provided by the present invention is a refrigerator that has the refrigeration module. By means of separating the refrigeration module and a storage portion, the storage portion does not need to give way to the refrigeration system, and the internal volume of the refrigerator may be greatly increased; and the refrigeration module may be freely matched with one or more of the same or different storage portions as needed.

Abstract: A partial discharge (PD) detection apparatus for gas-insulated equipment includes a photon collector, an optical splitter, a first photoelectric conversion module, an ultraviolet fluorescent crystal, a second photoelectric conversion module, and a signal processing module, where the ultraviolet fluorescent crystal is configured to convert a second optical radiation signal into an optical radiation signal of an ultraviolet fluorescence band, and the signal processing module is configured to calculate first apparent intensity based on a first voltage signal output by the first photoelectric conversion module, calculate second apparent intensity based on a second voltage signal output by the second photoelectric conversion module, and determine discharge intensity of the optical radiation based on a ratio of the second apparent intensity to the first apparent intensity. Technical solutions of the present disclosure are not affected by an unknown distance between a discharge position and a detection point.

Abstract: An air-cooled refrigerator includes an air duct assembly and an air door shielding device. The air duct assembly is provided with an accommodating cavity with a rearward air inlet. A plurality of air supply communicating holes are formed in a peripheral wall of the accommodating cavity. The air door shielding device is provided with a shielding part. The shielding part is provided with a plurality of air baffles. The shielding part is rotatably in the accommodating cavity, so as to have shielding positions for the plurality of air baffles to completely shield all of the air supply communicating holes. A bottom of a sidewall of the accommodating cavity is provided with a water guide groove inclined rearward and downward. The air duct assembly is provided with a water outlet hole communicating a rear side of the air duct assembly with a rear end of the water guide groove, so that water in the accommodating cavity flows out of the air duct assembly by means of the water guide groove.

Abstract: The present invention discloses an automatic door opening device and a refrigerator having the same. The automatic door opening device comprises a base, a driving source member, two mechanical clutch gear sets and two pushing members, wherein the mechanical clutch gear set comprises a mechanical master gear, a mechanical slave gear, and a mechanical clutch member; in an initial state, the mechanical master gear is partially meshed with the mechanical clutch member which is separated from the mechanical slave gear; in a door body opening process, the mechanical master gear drives the mechanical slave gear to be in a transmission state; and after the door body is opened, the mechanical clutch gear set is recovered to an initial connection state.

Abstract: A branched air supply device includes: a shell having a peripheral wall portion, with the peripheral wall portion being provided with a plurality of air supply ports; a plurality of baffles, with each of the baffles being rotatably mounted at one of the air supply ports; a plurality of transmission assemblies, with each of the transmission assemblies being provided with a rotating member and a first transmission mechanism, and each of the first transmission mechanisms being configured to transmit a rotational motion of a corresponding rotating member to one of the baffles, so that the baffle is at rest or rotates; and a driving device having a driving source and a second transmission mechanism, with the second transmission mechanism being configured to transmit one motion, output by the driving source, to the plurality of rotating members, so that each of the rotating members is at rest or rotates.

Abstract: Disclosed is a refrigerating and freezing device, including: a storage compartment partitioned into a plurality of first spaces; a cooling chamber configured to accommodate an evaporator of the refrigerating and freezing device; an air channel system having a plurality of first air supply outlets, a main return air outlet and an on-off control device; and a plurality of drawers, wherein each drawer is mounted in one of the first spaces, each drawer has an air inlet and a return air outlet, each air inlet is communicated with one of the first air supply outlets, and each return air outlet is communicated with the main return air outlet; and the on-off control device is configured to control air flow from the cooling chamber to flow to one or more of the plurality of first air supply outlets, and then control all or part of the air flow to flow to the corresponding drawers.

Abstract: A refrigerator with a slide rail wiring mechanism, comprising a compartment configured to open forward, and a drawer-type door, wherein the compartment comprises a bottom wall, a rear wall and two side walls, and the drawer-type door is provided with an electrical component the slide rail wiring mechanism comprises a cable for supplying power to the electrical component and a first wiring box fixed in the compartment the first wiring box is formed with a first receiving portion and a second receiving portion; the cable comprises a fixed section fixed in the first receiving portion and a movable section that may be at least partially received in the second receiving portion; the second receiving portion is disposed apart from the bottom wall, the second receiving portion comprises a top plate and a bottom plate, and the bottom plate is provided with drainage holes.

Abstract: An engagement assembly, a drawer, and a refrigerator having same. The engagement assembly comprises a first engagement part matching the drawer and a second engagement part matching a refrigerator body; one of the first and second engagement parts is a gear, and the other one is a rack; the rack has a tooth surface that allows the gear to travel; the rack comprises a main rack and an extension rack; when the drawer is in a closed state, the tooth surface has a first stroke length; when the drawer is in an opening process, the extension rack moves to a travel path of the gear so that the tooth surface has a second stroke length; when the drawer is in a closing process, the extension rack is reset; the first stroke length is smaller than the second stroke length. The length of the tooth surface increases in the opening process.

Abstract: An engagement assembly, a drawer, and a refrigerator having same. The engagement assembly comprises a first engagement part matching the drawer and a second engagement part matching a refrigerator body; one of the first and second engagement parts is a gear, and the other one is a rack; the rack has a tooth surface that allows the gear to travel; the rack comprises a main rack and an extension rack; when the drawer is in a closed state, the tooth surface has a first stroke length; when the drawer is in an opening process, the extension rack moves to a travel path of the gear so that the tooth surface has a second stroke length; when the drawer is in a closing process, the extension rack is reset the first stroke length is smaller than the second stroke length. The length of the tooth surface increases in the opening process.

Abstract: An air-regulating freshness-preserving storage device comprises a container having a first storage space defined therein; and an oxygen removal device configured to remove a part or all of oxygen in air in the first storage space, so as to obtain the air rich in nitrogen, low in oxygen, and favorable for food preservation.