Abstract: The present disclosure provides a neodymium iron boron ring magnet forming apparatus, a neodymium iron boron ring magnet, and a method of preparing the neodymium iron boron ring magnet. The neodymium iron boron ring magnet forming apparatus comprises an upper punch, a female die, a lower outer punch, and a lower inner punch. The neodymium iron boron ring magnet forming apparatus can perform multiple steps, including cold pressing, hot pressing, pre-deformation, and hot deformation extrusion, and thus makes the process less complex, avoids repeated heating, and produces an NdFeB ring magnet with improved properties.

Abstract: The present disclosure provides a magnetic powder hot-pressing and hot-deformation apparatus and a hot-pressing and hot-deformation method. The magnetic powder hot-pressing and hot-deformation apparatus comprises a female die, an upper punch assembly, and a lower punch assembly. The upper punch assembly comprises an upper inner punch and an upper outer sleeve. At least a portion of the upper inner punch is inserted into the upper outer sleeve cavity, and the upper inner punch is configured to be movable vertically relative to the upper outer sleeve. The lower punch assembly comprises a lower inner punch and a lower outer sleeve. At least a portion of the lower inner punch is inserted into the lower outer sleeve cavity, and the lower inner punch is configured to be movable vertically relative to the lower outer sleeve. The diameter of the lower outer sleeve cavity is smaller than the diameter of the upper outer sleeve cavity.

Abstract: Provided are a method for preparing a neodymium iron boron (NdFeB) magnet and use of a hydrogel. The method includes: (1) providing a gel diffusion source including a heavy rare earth element powder and a hydrogel, where the hydrogel includes a water-absorbing substance and a dispersant, the water-absorbing substance is a cross-linked polymer, and a monomer forming the cross-linked polymer is one or more selected from the group consisting of acrylic acid, methacrylic acid, acrylamide, and hydroxyethyl methacrylate; (2) attaching the gel diffusion source to a surface of an NdFeB substrate to obtain a magnet attached with a hydrogel layer on a surface; and (3) subjecting the magnet attached with the hydrogel layer on the surface to a heat treatment to obtain the NdFeB magnet.

Abstract: A water divider provided includes a tube body, and a gas splitting assembly. The water divider provides with a branch water tube, and a user tube opening, a drainage outlets, and an internal opening arranged in sequence along the branch water tube. The branch water tube is located between two ends of the main airway and communicated to the main airway. Gas exhaled by a user forms an airflow that flows from one end of the main airway into the branch water tube through the user tube opening, and flows out of the branch water tube from the internal opening into the other end of the main airway. The drainage outlet is connected an external liquid collection device. The gas splitting assembly locates in the branch water tube, and enables the airflow rotating when the airflow flows into the gas splitting assembly.

Abstract: A vortex tube assembly and a breathing device include a main tube and a hot end plug. Gas inlet slots are annularly defined on a side surface of the main tube, so that compressed gas entering the main tube forms a vortex airflow. A first end of the main tube is a cold gas outlet connected to a turbine fan to dissipate heat. A second end of the main tube is a hot gas outlet. The hot end plug is mounted on the hot gas outlet of the main tube. A middle portion of the hot end plug blocks the vortex airflow close to an axis of the main tube, and hot gas outlet annular holes are defined around the middle portion of the hot end plug, so that the vortex airflow close to a tube wall of the main tube flows out from the hot gas outlet.

Abstract: A turbine driving module and a breathing device includes a main cavity, a turbine assembly, a first sensor group, and a second sensor group. The main cavity is divided into an oxygen mixing and noise reduction cavity, a turbine mounting cavity communicated, and a gas outlet cavity that are communicated First mounting positions having air holes communicated with the main cavity are disposed on the main cavity. A low-pressure oxygen connecting pipe, a high-pressure oxygen connecting pipe, and an air connector are communicated with the oxygen mixing and noise reduction cavity. The gas outlet pipe assembly is communicated with the gas outlet cavity. The turbine assembly is mounted in the turbine mounting cavity. Sensors of the first sensor groups are mounted on the first mounting positions. Sensors of the second sensor group are mounted in the gas outlet cavity and the oxygen mixing and noise reduction cavity.

Abstract: A check valve for a ventilator includes a housing assembly defining a flow channel and a flow guide assembly. The flow channel defines an air outlet. The flow guide assembly is disposed in the flow channel. The flow guide assembly includes a first baffling sleeve and a second baffling sleeve that are disposed in an axial direction of the flow channel in sequence. A first flow passing opening is defined in the first baffling sleeve. One side of the first baffling sleeve away from the first flow passing opening is inclined toward the air outlet. One side of the second baffling sleeve is inclined toward the air outlet. The second baffling sleeve faces the first flow passing opening. A projection of the second baffling sleeve completely overlaps a projection of the first flow passing opening on the horizontal cross section of the flow channel.

Abstract: An electronic device includes a middle frame, an antenna board, and a fastener. The middle frame is provided with a mounting cavity, and an inner wall of the mounting cavity is provided with a limiting portion. The antenna board is placed in the mounting cavity, and the fastener is capable of being clamped between the limiting portion and an upper end face of the antenna board, to restrict the antenna board from moving upward along a depth direction of the mounting cavity. This application can resolve a problem of operation inconvenience in antenna board mounting when a mounting space for mounting the antenna board is small, and can further resolve a problem that a peripheral component is easily damaged in a mounting process.

Abstract: The present disclosure provides a pipeline structure configured to prevent backflow of condensed water and a breathing machine. The pipeline structure includes a first branch, a second branch, a third branch, and a flow guide component. A first end of the first branch is a first air port. A second end of the first branch is a first communicating port. A first end of the second branch is a second air port. A second end of the second branch is communicated with the first communicating port. A first end of the third branch is a third air port. A second end of the third branch is communicated with the first communicating port. The flow guide component directly faces the first communicating port. The flow guide component is configured to guide an air of the first branch to the third branch and discharge the air through the third air port.

Abstract: A check valve for a ventilator includes a housing assembly defining a flow channel and a flow guide assembly. The flow channel defines an air outlet. The flow guide assembly is disposed in the flow channel. The flow guide assembly includes a first baffling sleeve and a second baffling sleeve that are disposed in an axial direction of the flow channel in sequence. A first flow passing opening is defined in the first baffling sleeve. One side of the first baffling sleeve away from the first flow passing opening is inclined toward the air outlet. One side of the second baffling sleeve is inclined toward the air outlet. The second baffling sleeve faces the first flow passing opening. A projection of the second baffling sleeve completely overlaps a projection of the first flow passing opening on the horizontal cross section of the flow channel.

Abstract: An electronic device includes a middle frame, an antenna board, and a fastener. The middle frame is provided with a mounting cavity, and an inner wall of the mounting cavity is provided with a limiting portion. The antenna board is placed in the mounting cavity, and the fastener is capable of being clamped between the limiting portion and an upper end face of the antenna board, to restrict the antenna board from moving upward along a depth direction of the mounting cavity. This application can resolve a problem of operation inconvenience in antenna board mounting when a mounting space for mounting the antenna board is small, and can further resolve a problem that a peripheral component is easily damaged in a mounting process.

Abstract: An airflow splitter is provided. The airflow splitter includes an inlet, an outlet, at least two splitting member. The splitting member includes a small aperture end and a large aperture end opposite to each other, the small aperture ends of all the splitting members face the inlet, and the large aperture ends of all the splitting members face the outlet. A flow pathway is defined between the small aperture ends and the large aperture ends. The at least two splitting members are sleeved sequentially. In two adjacent splitting members, the large aperture end of one splitting member is located in the small aperture end of the other splitting member. An annular gap is formed between the two adjacent splitting members, and the annular gap is further communicated with the flow pathway.

Abstract: An atomic layer deposition device for massively coating micro-nano particles, includes a reaction chamber and a particle container, in which an inlet port is provided at a lower end of the reaction chamber, and an inlet pipe for introducing a precursor or a carrier gas is provided in the inlet port; a chamber door is provided at an upper end of the reaction chamber, so that the particle container can be freely placed in or removed out of the reaction chamber; an air inlet hole is provided at a lower end of the particle container, and the inlet pipe enters the particle container through the air inlet hole.

Abstract: An atomic layer deposition device for massively coating micro-nano particles, includes a reaction chamber and a particle container, in which an inlet port is provided at a lower end of the reaction chamber, and an inlet pipe for introducing a precursor or a carrier gas is provided in the inlet port; a chamber door is provided at an upper end of the reaction chamber, so that the particle container can be freely placed in or removed out of the reaction chamber; an air inlet hole is provided at a lower end of the particle container, and the inlet pipe enters the particle container through the air inlet hole.

Abstract: A nanoparticle continuous-coating device based on spatial atomic layer deposition. A first-stage pipeline unit, a second-stage pipeline unit, a third-stage pipeline unit and a fourth-stage pipeline unit which are connected sequentially. The first-stage pipeline unit is used for providing a first precursor and enabling the first precursor to be adsorbed on surfaces of nanoparticles. The third-stage pipeline unit is used for providing a second precursor and enabling the second precursor to react with the first precursor on the surfaces of the nanoparticles, so that a monomolecular thin film layer is generated on the surfaces of the nanoparticles. The second-stage and fourth-stage pipeline units are used for cleaning the nanoparticles and discharging the redundant first precursor, the redundant second precursor or reaction by-products.

Abstract: The invention discloses a suction seat for an intelligent nursing toilet bowl. The suction seat comprises a housing installed on a base, the interior of the housing is an inner cavity, a temperature and humidity sensor, an excrement sensor and a flushing nozzle are respectively installed in the cavity body of the inner cavity, a urine sensor is arranged on the outer side of the lower part of the cavity body, and a discharge port connected with an external negative pressure pipeline is vertically formed in the bottom of the cavity body; and a cleaning device and a ventilation device which are communicated with the interior of the cavity body are arranged on the outer side of the rear part of the cavity body. The cleaning device can automatically adjust the height of the nozzle as well as the pressure and flow rate of running water, thereby realizing overall cleaning on human hip, and overcoming the defects that the existing nozzle is fixed and the flushing area cannot be adjusted.

Abstract: A nanoparticle continuous-coating device based on spatial atomic layer deposition. A first-stage pipeline unit, a second-stage pipeline unit, a third-stage pipeline unit and a fourth-stage pipeline unit which are connected sequentially. The first-stage pipeline unit is used for providing a first precursor and enabling the first precursor to be adsorbed on surfaces of nanoparticles. The third-stage pipeline unit is used for providing a second precursor and enabling the second precursor to react with the first precursor on the surfaces of the nanoparticles, so that a monomolecular thin film layer is generated on the surfaces of the nanoparticles. The second-stage and fourth-stage pipeline units are used for cleaning the nanoparticles and discharging the redundant first precursor, the redundant second precursor or reaction by-products.

Abstract: The invention discloses a suction seat for an intelligent nursing toilet bowl. The suction seat comprises a housing installed on a base, the interior of the housing is an inner cavity, a temperature and humidity sensor, an excrement sensor and a flushing nozzle are respectively installed in the cavity body of the inner cavity, a urine sensor is arranged on the outer side of the lower part of the cavity body, and a discharge port connected with an external negative pressure pipeline is vertically formed in the bottom of the cavity body; and a cleaning device and a ventilation device which are communicated with the interior of the cavity body are arranged on the outer side of the rear part of the cavity body. The cleaning device can automatically adjust the height of the nozzle as well as the pressure and flow rate of running water, thereby realizing overall cleaning on human hip, and overcoming the defects that the existing nozzle is fixed and the flushing area cannot be adjusted.

Abstract: A mobile communication device and method for forwarding a new voice call, received at the device during a current voice call, to a paired computing device is provided. The method includes, at the device comprising a processor, a display device, a memory and a communication interface, receive a new voice call while a current voice call is active at the device and display, on the display device, a selectable option for forwarding the new voice call. Upon detecting selection of the selectable option: retrieve, from the memory one or more stored device identifiers, each stored device identifier associated with a paired computing device, display, on the display device, the one or more stored device identifiers and upon detecting selection of a device identifier of the one or more stored device identifiers, forward the new voice call, using the communication interface, to the paired computing device associated with the device identifier.