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: A prelithiation device and a prelithiation method, are described. The prelithiation device comprises a first roller, a second roller, a third roller, and a first coating mechanism. The second roller is used to cooperate with the first roller to jointly roll a lithium ribbon to adhere the lithium ribbon to the second roller, the lithium ribbon comprising two first surfaces opposite each other in an axial direction of the second roller; the third roller is used to cooperate with the second roller to jointly roll an electrode plate to bond the lithium ribbon adhering to the second roller to the electrode plate; and the first coating mechanism is disposed upstream of the second roller and is configured to coat the first surfaces with a release agent.

Abstract: An ultrasound scanning control method applied to an ultrasound scanning device is provided. The ultrasound scanning device includes an execution mechanism. The execution mechanism includes a mechanical arm and a probe. The ultrasound scanning control method includes controlling the mechanical arm to drive the probe to move according to a set scanning trajectory for performing an ultrasound scanning detection on a part to be examined. Once an actual pressure value between the probe and the part to be examined in each control cycle is sensed using the force sensor, a pressure value between the probe and the part to be examined is controlled to be a constant value based on the actual pressure value.

Abstract: The present invention discloses a control system and a control method of a refrigerator. The control system comprises a collection unit and a fan control unit, and the fan control unit controls a heat dissipation fan to operate at different rotation speeds according to a power-on signal of the refrigerator, a closing signal and an opening signal of the first air port collected by the collection unit. The present invention solves the problem that the hot air discharged out of the compressor compartment blends with cold air and re-enters the compressor compartment, and the problem of poor heat dissipation of the refrigerator when the refrigerator is embedded in the cupboard.

Abstract: A refrigerator with a freezing storage assembly, comprising: a cabinet provided therein with a storage compartment for achieving a freezing storage function; the freezing storage assembly arranged in the storage compartment and comprising: a magnetic frame made of a magnetic material; and a storage box provided in a space enclosed by the magnetic frame and defining a freezing storage space; and a plurality of groups of electromagnetic coils arranged on an inner surface of the magnetic frame and configured to form magnetic fields with magnetic pole directions at a set angle in the freezing storage space, the magnetic fields passing through the magnetic frame to complete closed loops of magnetic lines.

Abstract: A refrigerator with a freezing storage device, including: a cabinet provided therein with a storage compartment for achieving a freezing storage function; and the freezing storage device arranged in the storage compartment and including: a storage box having a freezing storage space defined therein; a storage detection device provided in the storage box and configured to detect a state of stored food in the freezing storage space; and a plurality of groups of electromagnetic coils transversely arranged outside the storage box in parallel and configured to determine a corresponding magnetic field application mode according to the state of the stored food, the magnetic field application mode including: stopping of generation of the magnetic field, starting of part of the plural groups of electromagnetic coils, and complete starting of the plural groups of electromagnetic coils.

Abstract: A refrigerator, comprising a microfluidic testing system used for qualitatively or quantitatively testing a preset test parameter of a sample liquid. The microfluidic testing system comprises: a microfluidic biochip which is provided with a sample inlet, a communication port and a testing pool formed inside the microfluidic biochip, wherein the sample inlet, the testing pool and the communication port are in sequential communication by means of a micro-channel; a chip mounting mechanism used for mounting the microfluidic biochip; a sample liquid driving device in hermetic communication with the communication port, so as to promote the sample liquid in contact with the sample inlet to flow into the micro-channel and flow to the testing pool via the micro-channel; and a testing mechanism which is used for testing the testing pool to obtain the preset test parameter of the sample liquid.

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: Disclosed are a microfluidic detection system, a control method therefor, and a refrigerator. The microfluidic detection system comprises a microfluidic biochip, a sample liquid driving apparatus, and a detection mechanism. The microfluidic biochip is provided with a sample inlet, a communication port, and a detection pool. The control method comprises: driving a sample liquid with the sample liquid driving apparatus to flow into the detection pool; detecting the detection pool with the detection mechanism, and controlling the sample liquid driving apparatus to periodically and repeatedly execute a first liquid pushing and drawing operation which comprises a first liquid pushing action for prompting the sample liquid to flow towards the sample inlet, and a first liquid drawing action for prompting the sample liquid to flow towards the detection pool.

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: 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 are a microfluidic testing system and control method, and a refrigerator. The microfluidic testing system comprises a microfluidic biochip, a sample stage for placing a sample cup, and a lifting mechanism for driving the sample stage to move. The microfluidic biochip is provided with a sample inlet for receiving a sample liquid. The control method comprises: starting a lifting mechanism when a sample cup holding a sample liquid is placed on a sample stage, and controlling the lifting mechanism to move the sample stage from an initial position to a testing position where the sample liquid in the sample cup comes into contact with a sample inlet, thereby realizing sample loading of the microfluidic biochip.

Abstract: Provided are a microfluidic detection system for a refrigerator and the refrigerator. The microfluidic detection system comprises: a microfluidic biochip that has a sample inlet, a detection pool and a communication port, all of which communicate in sequence by means of a microfluidic channel; a sample liquid driving device in sealed communication with the communication port by means of a sealed docking mechanism; and a detection mechanism for detecting the detection cell to obtain preset detection parameters of a sample liquid. The communication port is fixedly provided with a plug pin-having an internal flow channel in sealed communication with the communication port, the plug pin is inserted into and forms a fluid-tight connection with the sealed docking mechanism, and the sealed docking mechanism is in fluid-tight connection with the sample liquid driving device, so that the sample liquid driving device is in sealed communication with the communication port.

Abstract: A refrigerator, comprising: a refrigerator body internally defining a storage space for storing articles, a door connected to the refrigerator body and used for opening and/or closing the storage space, and a microfluidic detection system which is provided on the door and comprises: a microfluidic biochip having a sample inlet, a communication port, and a detection pool formed in the microfluidic biochip, the sample inlet, the detection pool, and the communication port being connected in sequence by means of a microfluidic channel to allow a sample fluid in contact with the sample inlet to enter the microfluidic channel and flow into the detection pool by means of the microfluidic channel; and a detection mechanism used for detecting the detection pool after the sample fluid in the detection pool reacts with a detection reagent in the detection pool to obtain a preset detection parameter of the sample fluid.

Abstract: The present invention provides a refrigerator and a control method thereof; the refrigerator includes: a constant temperature compartment, a cooling unit for cooling the constant temperature compartment, at least one tray located in the constant temperature compartment, a compartment temperature sensor for detecting a temperature in the constant temperature compartment, a tray temperature sensor for detecting a temperature of the tray, and a controller, and the cooling unit, the compartment temperature sensor and the tray temperature sensor are all communicatively connected with the controller.

Abstract: An air-cooled refrigerator, comprising a bottom liner, an evaporator, a water receiving tray, and a heating wire. A cooling chamber located at the bottom of the bottom liner is defined inside the bottom liner, and the bottom wall of the bottom liner is provided with a water receiving tank with a water drainage outlet at its bottom; the evaporator is provided in the cooling chamber; the water receiving tray is provided between the evaporator and the bottom wall of the bottom liner to receive water on the evaporator, and a plurality of through holes are formed in a region of the water receiving tray facing towards the water receiving tank; the heating wire is coiled and provided between the water receiving tray and the evaporator to heat and defrost the evaporator, and the heating wire has an extension portion extending to the water receiving tank through the through holes.

Abstract: An air-cooled refrigerator comprises a bottom liner, a fan bottom shell, an air duct cover plate, and fan blades. A cooling chamber and a storage space are defined in the bottom liner. The fan bottom shell is arranged at a rear portion of the cooling chamber. The air duct cover plate comprises a back plate portion and a fan upper cover. The back plate portion is disposed in front of a rear wall of the bottom liner. The fan upper cover obliquely extends downward from a lower end of the back plate portion into the cooling chamber, covers the fan bottom shell and is fastened thereto. The back plate portion and the fan upper cover are integrally formed. The fan blades are arranged in a fan cavity, and enable formation of a refrigeration airflow discharged from the cooling chamber to an air supply duct.

Abstract: A refrigerator, comprising: a refrigerator body internally defining a storage space for storing articles, a door connected to the refrigerator body and used for opening and/or closing the storage space, and a microfluidic detection system which is provided on the door and comprises: a microfluidic biochip having a sample inlet, a communication port, and a detection pool formed in the microfluidic biochip, the sample inlet, the detection pool, and the communication port being connected in sequence by means of a microfluidic channel to allow a sample fluid in contact with the sample inlet to enter the microfluidic channel and flow into the detection pool by means of the microfluidic channel; and a detection mechanism used for detecting the detection pool after the sample fluid in the detection pool reacts with a detection reagent in the detection pool to obtain a preset detection parameter of the sample fluid.

Abstract: A refrigerator, comprising a microfluidic testing system used for qualitatively or quantitatively testing a preset test parameter of a sample liquid. The microfluidic testing system comprises: a microfluidic biochip which is provided with a sample inlet, a communication port and a testing pool formed inside the microfluidic biochip, wherein the sample inlet, the testing pool and the communication port are in sequential communication by means of a micro-channel; a chip mounting mechanism used for mounting the microfluidic biochip; a sample liquid driving device in hermetic communication with the communication port, so as to promote the sample liquid in contact with the sample inlet to flow into the micro-channel and flow to the testing pool via the micro-channel; and a testing mechanism which is used for testing the testing pool to obtain the preset test parameter of the sample liquid.

Abstract: Provided are a foot adjusting system and a refrigerator having same, the foot adjusting system including: a driving rotating wheel, a part of which forms a driving rotating shaft; a drive belt, sleeved on an outer periphery of the driving rotating shaft; and a foot, provided with a screw rod and a driven rotary disc, the screw rod being rotatably screwed into a threaded hole at a bottom of an apparatus where the foot adjusting system is installed, an outer periphery of the driven rotary disc being sleeved with the drive belt to be in a transmission connection with the driving rotating shaft, and the driven 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. The leveling difficulty and the installation difficulty of the apparatus can be reduced.