Abstract: An alkaline electrolyte membrane (AEM) electrolytic device is designed, assembled and evaluated for water electrolysis, composed of an anode for oxygen generation, a cathode for hydrogen generation, an AEM for anion conductive, and two internal water gas separators (IWGSs) for water supplying to the anode and the cathode, respectively, as well as for automatically separation of water and gas produced from the anode or from the cathode. There is no need of pumps for water and gas circulations and no external water gas separators (EWGSs) that are used by conventional water electrolyzers. The corrosive electrolyte is confined in the water containers and will not damage other parts in the electrolytic device. Furthermore, novel multi gas diffusion layers are used to replace the conventional single gas diffusion layer. The pore size is configurable to improve the mass transfer of electrochemical reactions and promote electrochemical reactions.

Abstract: An intelligent vacuum cleaning and dust collecting apparatus includes a robotic vacuum cleaner and a dust collector. The robotic vacuum cleaner includes a housing, an infrared receiving assembly, a dust bin assembly, host charging elastic pieces, a driving motor, running wheels, and a sweeping assembly. The sweeping assembly includes a sweeping shaft and a sweeping brush, and a communication transmitting light is disposed inside the housing. The dust collector includes a dust collector body, four groups of infrared emitting lights, virtual wall signal lights, dust collector charging elastic pieces, and a dust collector assembly, and a communication receiving light is disposed on a bottom portion of the dust collector body.

Abstract: An inductor magnetic core and an inductor using the same are disclosed. The inductor magnetic core includes a middle column, an upper yoke, a lower yoke, and at least two high magnetically-permeable side columns. The middle column is disposed between a middle part of the upper yoke and a middle part of the lower yoke, a coil is wound the middle column, and a saturation magnetic flux density of the middle column is higher than that of the upper yoke and the lower yoke. The at least two high magnetically-permeable side columns are disposed in interval between the upper yoke and the lower yoke, and two ends of each high magnetically-permeable side column are connected to outer edges of the upper yoke and the lower yoke, respectively. The inductor magnetic core and the inductor of the present invention improves utilization of the yoke, and also provide compact structure and simple production.

Abstract: Embodiments of the present application provide a semiconductor structure and its formation method. The method includes: the substrate being provided with a groove, a sidewall of the groove including a first sub-sidewall and a second sub-sidewall that extend upwards from a bottom of the groove sub-sidewall; blowing a first precursor to a surface of the substrate, so that the first precursor is attached to a top surface of the substrate and the second sub-sidewall; blowing a second precursor to the surface of the substrate, so that the second precursor reacts with the first precursor to form a dielectric layer; alternately blowing the first precursor and the second precursor to the surface of the substrate to form a plurality of dielectric layers until a top opening of the groove is blocked, a region enclosed by the first sub-sidewall, the dielectric layer and the bottom of the groove forming a void.

Abstract: An inductor magnetic core and an inductor using the same are disclosed. The inductor magnetic core includes a middle column, an upper yoke, a lower yoke, and at least two high magnetically-permeable side columns. The middle column is disposed between a middle part of the upper yoke and a middle part of the lower yoke, a coil is wound the middle column, and a saturation magnetic flux density of the middle column is higher than that of the upper yoke and the lower yoke. The at least two high magnetically-permeable side columns are disposed in interval between the upper yoke and the lower yoke, and two ends of each high magnetically-permeable side column are connected to outer edges of the upper yoke and the lower yoke, respectively. The inductor magnetic core and the inductor of the present invention improves utilization of the yoke, and also provide compact structure and simple production.

Abstract: The present application discloses a three-phase reactor, including: an upper yoke and a lower yoke, the upper yoke and the lower yoke containing a first material; and at least three first core columns, the first core columns containing a second material, and the both ends of each of the first core columns being connected with the upper yoke and the lower yoke, respectively, wherein, the relative permeability of the first material is greater than that of the second material, and at least one air gap is positioned in each of the first core columns. In the three-phase reactor proposed by the present disclosure, the yokes are made of a material different from that of the core columns, and air gaps are positioned in the core columns, so that the eddy current losses may be reduced significantly and the requirement for the use of high power may be satisfied.

Abstract: A transformer includes a magnetic core, a primary winding, and a plurality of secondary windings. The magnetic core has an axial and a radial direction. The primary winding includes a plurality of winding sections and at least one connecting section. The winding sections are arranged along the axial direction. The connecting section is connected between the two adjacent winding sections. Each of the winding sections includes a plurality of primary winding layers and pull-out portions. The primary winding layers surround the magnetic core and are arranged along the radial direction. One pull-out portion connects two primary winding layers adjacent to the pull-out portion. Part of normal projections of the primary winding layers on a surface of the magnetic core are located between normal projections of the pull-out portions on the surface of the magnetic core. The secondary windings surround the primary winding.

Abstract: The present application discloses a three-phase reactor, including: an upper yoke and a lower yoke, the upper yoke and the lower yoke containing a first material; and at least three first core columns, the first core columns containing a second material, and the both ends of each of the first core columns being connected with the upper yoke and the lower yoke, respectively, wherein, the relative permeability of the first material is greater than that of the second material, and at least one air gap is positioned in each of the first core columns. In the three-phase reactor proposed by the present disclosure, the yokes are made of a material different from that of the core columns, and air gaps are positioned in the core columns, so that the eddy current losses may be reduced significantly and the requirement for the use of high power may be satisfied.

Abstract: The present disclosure provides an inductor and a switching circuit including the inductor. The inductor at least includes a winding, and a magnetic core which includes one or more limbs and further includes one or more yokes adapted to form a closed magnetic path, the winding being wounded on the limbs. A gap is provided between at least one end of at least one of the limbs and at least one of the yokes, a flat magnetic core unit is provided in the gap, the flat magnetic core unit is formed of a material having a high permeability and a low saturation magnetic flux density, the limbs and yokes are formed of a material having high permeability and high saturation magnetic flux density, and the saturation magnetic flux density of the material of the flat magnetic core unit is lower than that of the material of the limbs and yokes.

Abstract: A transformer includes a magnetic core, a primary winding, and a plurality of secondary windings. The magnetic core has an axial and a radial direction. The primary winding includes a plurality of winding sections and at least one connecting section. The winding sections are arranged along the axial direction. The connecting section is connected between the two adjacent winding sections. Each of the winding sections includes a plurality of primary winding layers and pull-out portions. The primary winding layers surround the magnetic core and are arranged along the radial direction. One pull-out portion connects two primary winding layers adjacent to the pull-out portion. Part of normal projections of the primary winding layers on a surface of the magnetic core are located between normal projections of the pull-out portions on the surface of the magnetic core. The secondary windings surround the primary winding.

Abstract: A composite magnetic core assembly includes an inner magnetic core and an outer magnetic core. The inner magnetic core is made of a high saturation flux density and low permeability material. The outer magnetic core is made of a low saturation flux density and high permeability material. The outer magnetic core includes a ring-shaped wall and a receptacle. The inner magnetic core is accommodated within the receptacle.

Abstract: A magnetic device includes two symmetric magnetic cores, each of which includes a base, a first protruding portion and second protruding portions. The first protruding portion and the second protruding portions are formed on the base separately along two edges of the base. The two symmetric magnetic cores are assembled such that a gap is formed between the first protruding portion of one of the two symmetric magnetic cores and the first protruding portion of the other one of the two symmetric magnetic cores. A method for generating inductance is also disclosed herein.

Abstract: A magnetic device includes two symmetric magnetic cores, each of which includes a base, a first protruding portion and second protruding portions. The first protruding portion and the second protruding portions are formed on the base separately along two edges of the base. The two symmetric magnetic cores are assembled such that a gap is formed between the first protruding portion of one of the two symmetric magnetic cores and the first protruding portion of the other one of the two symmetric magnetic cores. A method for generating inductance is also disclosed herein.

Abstract: A composite magnetic core assembly includes an inner magnetic core and an outer magnetic core. The inner magnetic core is made of a high saturation flux density and low permeability material. The outer magnetic core is made of a low saturation flux density and high permeability material. The outer magnetic core includes a ring-shaped wall and a receptacle. The inner magnetic core is accommodated within the receptacle.