Abstract: A motor is provided, including an outer housing, a stator, and a rotor. The outer housing includes an accommodating space, and the stator and the rotor are accommodated in the accommodating space, the rotor is rotatable with respect to the stator. The outer housing includes a first surface, the first surface is enclosed to form the accommodating space. The rotor includes a rotating shaft and a magnet, the rotating shaft is rotatable with respect to the outer housing, and the magnet is fixed to the rotating shaft. The stator includes a coil, the coil is disposed along a periphery of the magnet and is spaced apart with the magnet, the coil is fixed to the first surface through adhesive bonding. Therefore, magnetic flux leakage is effectively minimized, so that torque performance of the motor is higher and a structure of the motor is simpler.

Abstract: A solar cell includes a transparent electrode and a hole transport layer (HTL) coupled to and disposed underneath the transparent electrode. The solar cell includes a light-absorbing layer made of a perovskite photovoltaic material that is coupled to the HTL opposite the transparent electrode. The solar cell includes an electron transport layer (ETL) made of tin oxide (SnO2) coupled to the light-absorbing layer opposite the HTL. The solar cell includes a bottom electrode made of a carbon material coupled to the ETL opposite the light-absorbing layer. The solar cell includes a substrate made of aluminum or an aluminum alloy coupled to the bottom electrode opposite the ETL.

Abstract: Provided is a linear driving mechanism including a driving assembly and a transmission assembly fixedly connected to each other. The driving assembly drives the transmission assembly to move. The transmission assembly includes a second housing including a hollow housing body, a gear ring formed by an end of the housing body close to the driving assembly, and a slide rail formed by recessing the housing body from an end away from the driving assembly. The gear ring is engaged with the gear assembly, and the stator assembly drives the rotor assembly to rotate the screw rod, to cause the push rod to realize the linear telescopic movement. The present application integrates the slide rail, the gear ring, and the housing to form the second housing, and the second housing is injection molded in one piece using high-strength plastic particles, which facilitates mass production and ensures more stable dimensions.

Abstract: The present disclosure discloses a coreless motor including an outer housing, a first lid mounted on the outer housing, an inner housing with a second receiving space, received in the first receiving space, a rotor rotatably connected to the first lid and the inner housing, and a stator coil received in the second receiving space and fixed to inner housing; the outer housing includes an end portion enclosed an opening; the first lid includes a fixation portion mounted on the end portion and a first extending portion extending into the opening; the first extending portion is fixed to the inner housing.

Abstract: Provided are a telescopic lens and an electronic device. The telescopic lens includes a base, a stator assembly, a rotor assembly, a lifting member, a protective lens assembly, and a lens assembly. The stator assembly includes an annular stator, a plurality of winding posts, and a plurality of windings. The rotor assembly includes a magnetic annular rotor and an annular connection frame, and the inner peripheral side of the annular connection frame is provided with a track groove. The lifting member is accommodated in the annular connection frame and at least partially slidably assembled in the track groove. Upon energization of the windings, the windings and the annular rotor are used for driving the lifting member to move up and down along the track groove. The telescopic lens features a small size occupation, high transmission efficiency, small backlash error, drop resistance, simple structure and manufacturing process, and high stability.

Abstract: The present application provides a brushless hollow cup motor including a housing, a stator assembly fixed in the housing, a rotor assembly supported in the housing, a first bearing, and a second bearing. The housing includes a first cover plate, a second cover plate, and a housing body sandwiched between the cover plates. The rotor assembly is supported on the first and second cover plates and forms a rotational connection. The first bearing is a ball bearing and the second bearing is an oil bearing. The first cover plate and the second cover plate are recessed to form a first groove and a second groove, respectively. The rotor assembly are fixed to the inner peripheral sides of the first and second bearings. The present application ensures that the axial and radial movements of the rotor are maintained in a reasonable range, thereby improving the motor's operational stability.

Abstract: The present application provides a brushless hollow cup motor including a housing, a stator assembly fixed to the housing, a rotor assembly rotatably connected to the housing, a front cover and a bracket mounted on two ends of the housing, a circuit board fixed to the bracket, and an outlet terminal fixed to the circuit board. The stator assembly is provided around the rotor assembly. The front cover is engaged with the housing through a first limiting structure and fixedly welded to one end of the housing, the bracket is engaged with the housing through a second limiting structure and fixed to the other end of the housing, and the rotor assembly is rotatably connected to the front cover and the bracket. The brushless hollow cup motor has a simple structure, which facilitates ensuring an accurate and uniform position of the motor outlet, saves costs, and improves productivity.

Abstract: A brushless hollow cup motor includes a housing, a stator assembly fixed in the housing, and a rotor assembly supported in the housing and rotatably connected to the housing, in which the stator assembly is provided around the rotor assembly and spaced apart from the rotor assembly; the brushless hollow cup motor further includes a machine casing, which is fixedly sleeved on the housing, and the housing is made of a magnetically conductive material. The present application eliminates the silicon steel stacks, thereby increasing the internal magnetic circuit space. This allows for a larger magnetic steel volume, effectively enhancing the motor torque. By assembling a magnetically conductive housing externally, magnetic leakage can be reduced, further improving the performance of the brushless hollow cup motor. Additionally, the shape of the machine casing may be flexibly adjusted according to requirements, resulting in greater practicality and higher spatial utilization efficiency.

Abstract: The present application provides a brushless motor including a housing, a front cover, a bracket, a stator assembly, a rotor assembly, a circuit board, and a sensor assembly. The stator assembly is provided around the rotor assembly, and the rotor assembly includes a rotor shaft and a permanent magnet fixedly sleeved on the rotor shaft. The rotor shaft includes a rotor shaft body and two flat portions formed by recessing the rotor shaft body. The sensor assembly includes a sensor magnet and a Hall sensor, and the sensor magnet includes a magnet body and a fixing hole formed through the magnet body. The flat portions are fixed in the fixing hole. Magnetizing directions of the permanent magnet and the sensor magnet are perpendicular to the flat portions. The brushless motor has consistent directions for the main and secondary magnetic fields, high rotation data detection accuracy, and excellent torque performance.

Abstract: Provided is a step motor including a housing, a stator assembly, a rotor assembly, and a reduction gearbox assembly. The housing includes an outer shell as well as a first end cover and a second end cover, and the rotor assembly includes a rotary shaft and a permanent magnet. The step motor further includes an elastic piece fixed to the first end cover, the elastic piece includes a limiting portion, a ring-shaped fixing portion arranged around the limiting portion, and at least two elastic arms connecting the limiting portion with the fixing portion, and the fixing portion is fixed to the first end cover. Compared with the related art, the step motor of the present disclosure has high transmission precision, a small backlash, good vibration damping and noise reduction capabilities, as well as small volume occupation and low cost.

Abstract: Embodiments of the present disclosure provide VR glasses including a bracket body, a first mounting hole and a second mounting hole, and a first lens module and a second lens module respectively mounted in the first mounting hole and the second mounting hole. The VR glasses include a driving module. The driving module includes a frame fixed to the bracket body, a driving unit fixed to one side of the frame, a gear member rotatably disposed in the frame and torque-transmissively connected to the driving unit, a first rack meshed with the gear member, and a second rack meshed with the gear member. The VR glasses can automatically and synchronously adjust the interpupillary distance, and has high adjustment accuracy, small volume occupation, high driving efficiency, high reliability, and good user experience.

Abstract: The present disclosure provides a stepper motor and a winding device. The stepper motor includes: two plates arranged opposite to each other; a rotary shaft having two ends supported on the two plates, respectively; a magnet sleeved and fixed on an outer periphery of the rotary shaft; and a stator unit sleeved on the rotary shaft. The the stator unit includes windings arranged to space from the magnet. Each winding includes a respective casing that is hollow and arranged between the two plates, a respective claw pole fixed at an end of the respective casing and coaxial with the respective casing, and a respective coil wound on an outer periphery of the respective claw pole, and two ends of the respective coil extend outside the respective casing, respectively. The respective casing and portions of the respective claw pole in contact with the respective coil are coated with insulating coatings.

Abstract: The present disclosure provides a telescopic lens and an electronic device. The telescopic lens includes a pedestal, a stator assembly, a rotor assembly, a lifting member, a protective assembly, and a lens assembly. The rotor assembly includes an annular rotor rotatably connected to the pedestal, and an annular connecting frame fixed to the annular rotor and housed within the annular rotor. A track slot is formed in an inner wall of the annular connecting frame. The track slot is inclined relative to a circumferential direction of the annular connecting frame. The lifting member is housed within the annular connecting frame, and at least part of the lifting member is slidingly fitted within the track slot. The telescopic lens has a higher transmission efficiency, a lower power consumption, smaller noise, a significantly reduced number of components, and significantly reduced manufacturing costs, and is easy to assemble.

Abstract: A method for preparing a solid amine adsorbent of CO2 includes introducing a gas mixture containing 10 vol. % to 50 vol. % of CO2 is introduced into a sodium aluminate solution having a concentration in a range of 10 g/L to 100 g/L at room temperature to obtain a reaction solution. This occurs continuously until a pH value of the reaction solution is lowered to 9.5 to 9.8 to obtain a product solution containing a precipitate. The precipitate is filtered and washed. The filtered and washed precipitate is mixed with an organic alcohol at a mass ratio of 1:5 to 1:30 to obtain a suspension. The suspension is heated to an azeotropic point of water and the organic alcohol, and evaporated, boiled, and refluxed to obtain pore-enlarged pseudo boehmite. This is calcined to obtain aluminum oxide powder. The aluminum oxide powder is impregnated in an organic amine solution and dried.

Abstract: Apparatus and associated methods relate to a pre-transplantation evaluation of human livers using optical coherence tomography. In an illustrative example, a computer-implemented method performed by at least one processor to conduct a non-invasive evaluation of a liver prior to a transplantation procedure. The method includes providing a polarization-sensitive optical coherence tomography (PS-OCT) system. The PS-OCT system may, for example, be coupled to a machine-learning-based system trained to evaluate PC-OCT images of liver. The method may, for example, include determining steatosis, fibrosis, inflammation, and necrosis scores for the liver. The method may, for example, determine whether the liver is unsuitable or suitable for use as a donor liver when the steatosis, fibrosis, inflammation, and necrosis scores fail to meet predetermined donor suitability criteria; and, maintaining the liver under proper preservation conditions when the liver is determined to be suitable for use as a donor liver.

Abstract: The present invention provides a method for preparing an ionogel fiber based on a halogenometallate ionic liquid, including the following steps: dissolving a polymer in a good solvent to obtain a polymer solution; or dissolving polymer monomers in a good solvent, and carrying out a polymerization reaction under an action of an initiator to obtain a polymer solution; spinning the polymer solution in a poor solvent to obtain a polymer fiber; and immersing the polymer fiber in the halogenometallate ionic liquid for solvent exchange to obtain the ionogel fiber. The method provided by the present invention enhances the strength, strain, toughness, and energy dissipation under impact of fiber materials through a cyclic stretch-release training assisted by toughening with a halogenometallate ionic liquid, thereby preparing an ionogel fiber with high strength, high toughness, and high energy dissipation rate.

Abstract: An interpupillary distance adjusting device applied to VR glasses, the VR glasses include bracket body, first and second lens modules, the device includes driving module fixed to the bracket body and located between the first and second lens modules. The driving module is configured to drive the first and second lens modules to move towards or away from each other to realize interpupillary distance adjustment. The driving module includes frame, driving unit, first and second gear members, first and second racks parallel to each other. An end of the first rack is fixed to the first lens module, an end of the second rack is fixed to the second lens module. Compared with the related art, the interpupillary distance adjusting device can automatically and synchronously adjust the interpupillary distance, with high adjustment accuracy, small volume occupation, high driving efficiency, high stability, and good user experience.

Abstract: Provided are an imaging method and apparatus, and a medium. The method includes: for a target field of view, performing photographing and quantification at a first resolution, to obtain a first image that has a first bit width; for the target field of view, performing photographing and differential processing at a second resolution, to obtain a second image that has a second bit width, wherein the differential processing includes: for a pixel point obtained by photographing at the second resolution, quantifying the difference between the pixel point and a neighboring pixel point of the pixel point, to obtain a quantified difference a value of a corresponding pixel point in the second image; and fusing the first image with the second image, to obtain a third image, wherein the first resolution is lower than the second resolution, and the first bit width is higher than the second bit width.

Abstract: A method of manufacturing a suspension of gas-filled microvesicles by reconstituting a freeze-dried product and a suspension obtained according to said method, where the freeze-dried product has been subjected to a thermal treatment.