39results about How to "Optimize shape design" patented technology

The invention discloses a shared antenna circuit for a mobile terminal. An antenna impedance matching circuit of the shared antenna circuit is internally connected to a duplexer, and the Bluetooth / WI-FI signal output end of the duplexer is connected to the input end of a single-pole double-throw switch through a coupling capacitor. The GPS signal output terminal of the duplexer is connected to the GPS chip through the GPS chip impedance matching circuit; the control signal input terminal of the SPDT switch is connected to the control signal output terminal of the main control chip, and the Bluetooth signal output terminal of the SPDT switch is connected to the Bluetooth chip. The WI-FI signal output terminal of the SPDT switch is connected to the WI-FI chip. The invention enables GPS, WI-FI and Bluetooth to share one antenna, and the antenna needs to occupy a small space, which brings convenience to the structure and shape design of the mobile phone and reduces the overall size of the mobile phone.

The invention discloses a preparation method and an application of a self-support flexible electrode. The self-support flexible electrode has the advantages of environment friendliness, mild reaction condition, no conductive agent or binding agent addition, self-support film and excellent mechanical property. Compared with the existing SnO2 flexible electrode, the obtained flexible electrode comprises a carbon-clad nanofiber; a carbon-clad layer can protect an active material against corrosion of an electrolyte, and can inhibit structure collapse caused by volume expansion in charging and discharging processes; the flexible electrode is high in porosity; permeation of the electrolyte is facilitated; the flexible electrode can bear repeated bending without breaking; the electrochemical property basically remains constant; the flexible electrode can be directly cut for mounting a battery; and shape design and assembling of the battery are facilitated. The characteristics facilitate further improving the electrochemical property of the flexible electrode; and the flexible electrode is expected to become an excellent-property flexible electrode material of a lithium ion battery.

The invention provides a mobile communication terminal common antenna circuit. The mobile communication terminal common antenna circuit comprises a common antenna, a combiner connected with the common antenna through an antenna impedance matching circuit, at least two radiofrequency systems connected with the combiner and comprising a mobile signal radiofrequency system and a GPS radiofrequency system, and a radiofrequency transmitting-receiving unit connected with the mobile signal radiofrequency system and the GPS radiofrequency system. In the mobile communication terminal common antenna circuit, the at least two radiofrequency systems are combined and then are connected with the common antenna so as to share the common antenna. Shared, the common antenna occupies little space so that convenience is given to the structural and shape design of the mobile communication terminal.

The invention relates to a catcher for a trackless rubber-tired vehicle applied to a coal mine auxiliary inclined shaft. The catcher comprises a speed measuring sensor, a controller and a vehicle stopper. The controller is provided with a remote switch. The vehicle stopper comprises a vehicle stopping support which is provided with an inclined roller path, the lower end of the inclined roller path is close to a roadway, and vehicle stopping foam is supported by the roller path. The remote switch and the speed measuring sensor are used in the catcher for starting the vehicle stopper, out-of-control downward sliding of a vehicle is prevented, and the problem that braking is only conducted in the vehicle, and consequently the vehicle cannot be stopped immediately is solved. Automatic control of the speed measuring sensor is used, and serious consequences caused by human errors are avoided. Gravity is used by the vehicle stopper, operation failures of the vehicle stopping foam due to machine breakdowns is avoided without the assistance of any other power. The vehicle stopping foam has multiple functions of stopping the vehicle, preventing collisions, buffering and the like, the accident rate of auxiliary transportation of the trackless rubber-tired vehicle for the coal mine auxiliary inclined shaft can be effectively reduced, and the safety of auxiliary transportation of coal mines is ensured.

The invention discloses a wave power generation device fixed by the coast in a floating manner. The wave power generation device comprises a floating structure and a hydraulic system, wherein the floating structure floats on the sea; the hydraulic system is connected with the floating structure and used for energy conversion; the floating structure comprises a floating body, a supporting frame and two connecting rods used for connecting the floating body with the supporting frame; the floating body adopts a hollow sealed structure which is formed by steel welding, and hinged with the supporting frame which can be fixed on the coast or a large-scale floating body, so that the floating body can swing around the supporting point along with waves; and one of the connecting rods is connected with the hydraulic system, so that mechanical energy generated from the swinging of the floating body can be converted into hydraulic energy, and the hydraulic energy can be transferred to the hydraulic system for power generation. The wave power generation device provided by the invention is high in wave energy absorption efficiency, highly adaptable to tidal level changes within a certain range, and lower in environmental pollution; and the possibility that the wave power generation device is damaged is reduced.

The invention relates to an MIMO-Y type antenna array forming method based on electromagnetic vector sensors. The method includes the steps of firstly, calculating the incidence signal spatial guide vector when a plurality of antennas of a receiving end are in a Y type array; secondly, calculating the Y type array guide vector based on the electromagnetic vector sensors; thirdly, calculating the Y type array space fading relevancy function; fourthly, calculating the space fading relevancy when array elements of the Y type array are electromagnetic vector sensor units. By introducing the algorithm of the electromagnetic vector sensors (EVSs) into the Y type antenna array, system modeling for the MIMO is expanded, and the antenna design of an MIMO multi-antenna system terminal is optimized.

The invention relates to a parameterization method capable of being applied to wing body fusion underwater glider shape design. The method includes: dividing a glider parameterization shape into a plane shape and a section shape; generating parameter equations of a front-end Bessel curve, a front-end linear airfoil profile, a rear-end Bessel curve and a rear-end linear airfoil profile; calculatingthe variable quantity of the section airfoil profile, and applying the variable quantity to the selected section shape reference airfoil profile curve to obtain changed section airfoil profile parameters; calculating a span value and a height value corresponding to each section wing section to obtain a coordinate value of the actual section wing section of the parameterized appearance; and combining the glider plane shape parameters and the section airfoil parameters, and setting out the curve group to obtain the actual glider geometric shape. According to the parameterization method, parameterization of various similar types of gliders such as the wing body fusion underwater glider can be effectively carried out, the application range is wide, the parameter significance is clear, appearance design and optimization of the wing body fusion underwater glider are facilitated, and the parameterization problem is solved for research of hydrodynamic performance of the glider.

The invention discloses a facial image acquisition device for skin analysis. The device comprises a photomask, light sources, an imaging lens and a locator, wherein the photomask is symmetric about avertical plane and gradually narrows from the opening to the bottom; the imaging lens is arranged in the center of the bottom of the photomask and used for acquiring a facial image of a user; the light sources are arranged at the bottom of the photomask and symmetric about the imaging lens; the locator is arranged at the opening of the photomask and used for fixing the head of the user, so that points of the face of the user can fall in the focal plane of the imaging lens as many as possible. A proper imaging light path is designed by simulation of heads of Asian people, so that imaging conditions are almost consistent when facial images of users are shot each time, consistency of acquired images is improved during facial acquisition of different users or repeated facial acquisition of thesame user, and skin analysis of different groups or skin condition analysis of tracked unified users is facilitated.

The invention relates to an AUV shape optimization method based on an improved graffiti algorithm, and the method comprises the steps that: the main body shape design of an AUV is divided into three parts: a bow curve, a central curve, and a stern curve segment, the mathematical model is used for controlling the shape of the AUV through six parameters, the value of a resistance coefficient is obtained through fluid calculation, the six parameters are iteratively optimized through an improved graffiti algorithm, and the six optimal control parameters are found. According to the invention, in adesign space, based on the resistance coefficient, a more optimized AUV shape can be found.Compared with a traditional graffiti algorithm, an inverse-based learning strategy is introduced, the local search capability is enhanced, and a more optimized shape can be found in a design space based on a resistance coefficient. Compared with a traditional graffiti algorithm, another small parameter is introduced, the graffiti random flight capacity is reserved, population diversity is improved, optimization can be prevented from falling into local optimum, and a better optimization result is obtained.

The invention provides a telescopic sleeve and relates to the technical field of tubing connection. The telescopic sleeve comprises an outer tube and an inner tube partially sleeved in the outer tube; and a connecting part between the outer tube and the inner tube is sleeved with an adjusting piece for locking the inner tube in the outer tube. The adjusting piece comprises an inner sleeve fixed with the wall of the outer wall; the outside of the inner sleeve is sleeved with an outer sleeve which can rotate relative to the inner sleeve; and a spring for enclasping the inner tube is arranged and positioned between the top of the inner sleeve and the inner wall of the outer sleeve. The inner tube can rapidly extend out from the outer tube or draw back from the outer tube through rotating the adjusting piece; and owning to the elastic function of the spring in the adjusting piece, the new position of the tubing after stretching can also be rapidly positioned. The adjusting mode can conveniently and rapidly make the tubing flexing; the telescopic sleeve has a simple and durable structure; and the concealed type formation is also convenient for the whole shape design of the telescopic tubing and simultaneously enhances the whole molding effect and value of a product which adopts the telescopic tubing.

The invention provides lawn trimming equipment for garden landscape design. The lawn trimming equipment for garden landscape design comprises a motor fixedly installed on a vehicle body, the output end of the motor is fixedly connected with a driving rod, a cutting knife is fixedly installed at the end, extending out of the vehicle body, of the driving rod, and a protective cover matched with thecutting knife is fixedly installed on the vehicle body; two handles are fixedly installed on the vehicle body, the two handles are both fixedly sleeved with anti-skid sleeves, a plurality of installation bases are installed on the vehicle body, each installation base is rotatably connected with wheels, and a plurality of lifting grooves are formed in the vehicle body. The lawn trimming equipment has the advantages that the height of the vehicle body relative to the ground can be adjusted according to requirements, so that the reserved height after lawn trimming is controlled, the application range is relatively wide, shape design of the whole lawn is facilitated, the possibility and amplitude of shaking when the lawn trimming equipment moves on uneven grassland can be reduced, the flatnessof the trimmed lawn is kept consistent, and the overall attractive degree of the lawn is ensured.

The present invention provides a revolving plate for a sliver depositing device of a sliver-producing or sliver-processing spinning preparation machine is suggested that is designed for depositing sliver supplied in a running manner into a container (10), which revolving plate (1) has a press surface (7) arranged vertically to its axis of rotation (11) for pressing the deposited sliver into the container (10) and has a sliver passage (2) with a helical spatial curve , whereas the entrance opening (5) of the sliver passage (2) is arranged in such a manner that the supplied sliver enters into the sliver passage (2) parallel to the axis of rotation (11) of the revolving plate (1) and without bends, and whereas the exit opening (6) of the sliver passage (2) is in the plane of the press surface (7). The revolving plate in accordance with the invention is distinguished in that the sliver passage (2) has such a shape at least on a predominant part of its length that at a given ratio between the supply speed of the sliver and the speed of the revolving plate (1) substantially no force acting on the sliver to be deposited and tangential to the axis of rotation (11) of the revolving plate (1) occurs along the sliver passage (2) in order to reduce in this manner the friction of the sliver on the inner wall of the sliver passage in order to prevent the accumulation and collecting of particles on the inner wall of the sliver passage that loosened out of the sliver. A corresponding method for depositing a sliver supplied in a running manner into a container is also suggested.

The invention discloses a medical embolism spring multi-degree of freedom automatic coil winding machine, which is characterized by including a base (1), wherein one end of a first connecting arm (2)is fixedly connected with the base (1), and the other end of the first connecting arm (2) is fixedly connected with a first motor (3); an output shaft of the first motor (3) is fixedly connected withone end of a second connecting arm (4), and the other end of the second connecting arm (4) is fixedly connected with a second motor (5); an output shaft of the second motor (5) is fixedly connected with one end of a third connecting arm (6), and the other end of the third connecting arm (6) is fixedly connected with a third motor (7); an output shaft of the third motor (7) is fixedly connected with one end of a fourth connecting arm (8), and the other end of the fourth connecting arm (8) is fixedly connected with a fourth motor (9); a sizing module (10) is mounted on an output shaft of the fourth motor (9). The medical embolism spring multi-degree of freedom automatic coil winding machine is simple in structure and high in production efficiency and percent of pass.

The invention discloses a printer with a built-in hob paper cutting device. The printer includes a machine core assembly and a paper feeding roller fixing frame assembly which are pivoted with a moving blade fixing frame and a fixed blade fixing frame respectively; the moving blade fixing frame and the fixed blade fixing frame are provided with a moving blade and a fixed blade respectively; the machine core assembly is provided with a stepping motor and a cutter gear driven by the stepping motor; the cutter gear is connected with a cutter driving arm which is driven by the cutter gear so as to swing in a reciprocating manner; one end of the cutter driving arm is fixedly connected with the moving blade fixing frame so as to drive the moving blade to move in a reciprocating manner; the fixed blade is provided with a guide arm used for guiding the moving blade; the paper feeding roller fixing frame assembly is provided with a torsional spring used for driving the fixed blade to rotate towards the moving blade; the two cutting edges of the moving blade and the fixed blade are arranged obliquely in a manner that the closer the two cutting edges are to the guide arm, the smaller the interval between the cutting edges is; and the cutting edge of the moving blade is a plane curve. The printer of the invention is simple and compact in structure. The appearance design and miniaturization design of the printer can be benefitted, and the service life of the paper cutting device is long.

The invention relates to a heat-insulation cold-preservation insulation board for a low-temperature storage tank and an installation method of the insulation board. The insulation board comprises a high-temperature layer plate (1), an upper intermediate layer plate (2), a lower intermediate layer plate (3) and a low-temperature layer plate (4) which are sequentially arranged in layers, a stainlesssteel mesh (5) is arranged between the high-temperature layer plate (1) and the upper intermediate layer plate (2), a grid cloth (6) is arranged between the upper intermediate layer plate (2) and thelower intermediate layer plate (3), a gap for filling polyurethane is reserved between the lower intermediate layer plate (3) and the low-temperature layer plate (4), a protective skin (7) is arranged on the outer side surface of the high-temperature layer plate (1), and elastic thermal insulation materials (8) are arranged on two adjacent side surfaces of the upper intermediate layer plate (2),the lower intermediate layer plate (3) and the low-temperature layer plate (4). Compared with the prior art, the heat-insulation cold-preservation insulation board has the advantages of being excellent in heat preservation performance, wide in application range, easy and convenient to install, long in service life, excellent in installation environment and excellent in shape design.

The invention discloses a lumbar vertebra isthmus repairing device which comprises a first U-shaped fixing device and a connecting rod with one end fixed on one side of the first U-shaped fixing device. The connecting rod comprises a cylindrical straight section and a flat parabolic section with one end connected with the cylindrical straight section and the other end provided with a connecting mechanism used for be transversely connected with and fixing a spinous portion. The lumbar vertebra isthmus repairing device is reasonable in structure, ingenious in design and convenient to operate, the problem that bone grafting by a bone grafting bed is affected due to the fact that rear isthmus is blocked after the connecting rod is arranged on the U-shaped fixing device in lumbar vertebra isthmus repairing operation is solved, and the lumbar vertebra isthmus repairing device is higher in stability and conducive to bone grafting and well healing after bone grafting.

The invention discloses a dual light projection headlight. The dual light projection headlight comprises a high beam module, a lens holder, a bracket and a low beam light; the low beam light is arranged in the middle of the bracket, the high beam module is arranged at the upper portion of the lens holder, and the lens holder is arranged at the front end of the bracket; the front end of the lens holder is provided with a through lens, and the flat end of a flat convex mirror faces the rear end of the lens holder; the high beam module and the low beam light are staggered, according to the principle of transmission light of a plane mirror and flat convex mirror, the upper portion of the through lens is set to be a plane mirror, so that light is transmitted better, and the irradiation distanceof a high beam light is greatly increased; the lower portion of the through lens is set to be a flat convex mirror, so that the irradiation range of the light is effectively enlarged when the low beam light irradiates, and particle light is projected through the plane mirror, so that the effect of the low beam light is better; the characteristics of the high beam light and low beam light are effectively utilized, and different light-transmitting mirrors are set, so that illumination of the high beam light and low beam light is better utilized, and smaller power and better irradiation are achieved.

The invention discloses a preparation method and application of a patterned ultra-flexible self-supporting zinc electrode. The patterned ultra-flexible self-supporting zinc electrode has the advantages of being environment friendly, being capable of customizing patterns, not needing a conductive agent and a binder, being ultra-light, ultra-thin, being capable of achieving self-supporting and beingexcellent in mechanical property. Compared with an existing flexible zinc ion battery negative electrode, the obtained flexible electrode is composed of a customizable patterned single-layer zinc grid, a current collector and an active material are both zinc metal, and the pore-shaped gap of the electrode can effectively inhibit the volume expansion and dendritic crystal growth caused by zinc deposition in the charging and discharging process, and the permeation of an electrolyte is also facilitated. The prepared flexible electrode can bear the repeated bending without breakage, the electrochemical performance of the prepared flexible electrode is basically kept unchanged, the prepared flexible electrode can be directly cut and used for assembling a battery, and the appearance design andassembly of a zinc ion battery are facilitated.

The invention discloses a floating swing type wave power generation system self-adaptive to the tide level. The floating swing type wave power generation system comprises a floating body structure floating on the sea surface and a hydraulic system connected with the floating body structure and used for energy conversion. The floating body structure comprises a floating body, a support, a pair of synchronous belt wheels synchronously connected through a synchronous belt, and a connection rod connected between the two synchronous belt wheels. The floating body is of a sealed structure formed by welding hollow steel. The floating body is hinged to the support fixed to the coast or a large floating body so that the floating body can swing around a fulcrum along with fluctuation of waves. The connection rod is connected with the hydraulic system, converts the mechanical energy of swinging of the floating body into hydraulic energy, and transmits the hydraulic energy to the hydraulic system for power generation. By means of the floating swing type wave power generation system, the high wave energy absorption efficiency can be achieved, the adaptive capacity for the tide level changes within a certain range is high, pollution to the environment is reduced, and the probability that the floating swing type wave power generation system itself is damaged is lowered.

The invention discloses an LED waterproof module based on an AC single point lamp. The LED waterproof module is characterized by comprising an alternating current-direct current switching circuit, an ABS inflaming retarding power box (1), a waterproof module body (2) and a PC inflaming retarding lamp shade (6); the alternating current-direct current switching circuit can be directly connected into the 220V electric supply and loaded on the ABS inflaming retarding power box, the ABS inflaming retarding power box (1) is sealed by waterproof heat conduction silica gel, the waterproof module body (2) is connected with the alternating current-direct current switching circuit through a module power line (3), an LED lamp (5) is arranged in the waterproof module body (2), the PC inflaming retarding lamp shade (6) is arranged at the position, corresponding to the LED lamp (5), on the waterproof module body (2), and the PC inflaming retarding lamp shade (6) is once molded by inflaming retarding PVC materials in an injection mode. The LED waterproof module solves the problem that in the prior art, an LED lamp spontaneously combusts and leaks water under severe conditions, and is simple in structure, low in cost, suitable for severe environments with high temperature or excessive rain and long in service life.

The invention provides a preparation method of a flexible self-supporting Li3VO4 / C nanofiber lithium ion battery negative electrode material, which comprises the following steps: adding lithium nitrate, ammonium metavanadate and oxalic acid into a proper amount of N, N-dimethylformamide, and stirring in a water bath at a constant temperature; meanwhile, taking polyacrylonitrile to be added into N, N-dimethylformamide and stirred, then slowly dropping the mixture into the solution, and obtaining a precursor fiber membrane through electrostatic spinning; and when the spinning process is finished, removing the precursor fiber membrane from the steel roller, drying, and calcining to obtain the flexible Li3VO4 / C nanofiber. The flexible self-supporting Li3VO4 / C composite nanofibers are prepared by combining the electrostatic spinning technology with high-temperature solid-phase sintering for the first time to serve as the negative electrode material of the lithium ion battery, the synthesis process method is simple, convenient and easy to operate, a prepared sample does not need an additional binder, a conductive agent and a current collector and can be directly cut to serve as an electrode plate for use, and the material has good mechanical flexibility and shows excellent electrochemical performance.

The invention discloses an adjustable clamp for mounting a nickel-based single-crystal high-temperature alloy wafer sample. The adjustable clamp comprises a clamp control end, a flange plate, a connecting nut and a clamp fixing end, the flange plate is in threaded connection with the clamp control end and is used for fixing the clamp at the opening position of the experiment cabin section; the clamp control end comprises an angle adjusting knob, an angle adjusting handle and a height adjusting handle which are coaxially screwed from top to bottom in sequence through threads, the clamp fixing end comprises a base plate and a cover plate, the top of the base plate is connected with the bottom of the angle adjusting handle in an embedded mode, and the base plate is used for containing a nickel-based single-crystal high-temperature alloy wafer sample; the cover plate covers the base plate and is used for fixing a sample, and a hollow hole matched with the sample is formed in the cover plate; the connecting nut is in threaded connection with the bottom of a stand column of the angle adjusting handle, one side of the bottom of the connecting nut is connected with a bolt hole in the top of the cover plate through a pin shaft, and installation of the nickel-based single-crystal high-temperature alloy wafer sample and adjustment of the position and the angle of the sample can be achieved.

The invention discloses an environment-friendly filter material for filtering paint mist. The environment-friendly filter material comprises multiples layers of tiled fiber layers arranged in parallelwith each other and multiples vertical fiber mesh layers perpendicular to the tiled fiber layers. One end of the vertical fiber mesh layer is fixedly connected to the tiled fiber layer. One end, faraway from the tiled fiber layer, of the vertical fiber mesh layer has a structure with surface concaves and convexes alternate with each other so that the filtration area is increased, the accumulation amount of the paint mist is increased and the special requirements on paint mist filtration are further satisfied.

The embodiments of the present disclosure disclose a scroll type micro-compressor, and a method for machining a fixed scroll plate and an orbit scroll plate thereof. The scroll type micro-compressor comprises a fixed scroll plate and an orbit scroll plate each integrally made with a monocrystalline silicon substrate; the compressor device has an Oldham ring structure, and reduces a mass of the orbit scroll plate by optimizing a design of a substrate of the orbit scroll plate; a cross-sectional shape of a plurality of micropores provided on a lower surface of the fixed scroll plate is set as of a fan ring, in which an electrode material is accommodated to maintain an electric field uniformity and reduce an electric field loss; and hydrophilia of inner surfaces is changed to prevent a top leakage and facilitate capillary filling of a compression chamber.