Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

117results about How to "Meet design requirements" patented technology

Interior home style and colour matching design method based on Bayesian network

The invention discloses an interior home style and colour matching design method based on a Bayesian network. The interior home style and colour matching design method comprises the following steps of: (1), collecting interior style and colour design schemes; (2), labelling downloaded design schemes; (3), clustering colours of every classes of objects; (4), training the Bayesian network; (5), performing colour recommendation for a 3D indoor scene; (6), performing diversified adjustment of colours; and (7), transferring colours obtained by design onto textures, and pasting the textures on a 3D scene model. According to the interior home style and colour matching design method disclosed by the invention, the relationship of a decorative style and furniture colour matching is coded from excellent interior design schemes (pictures) by utilizing the Bayesian network; the method can be used for designing furniture colour matching in the indoor scene; according to user requirements on the decorative style, the system disclosed by the invention can recommend furniture colour matching in the indoor scene according with the style; convenient and rapid effect display can be provided for urban home decoration markets, 3D game animations and virtual reality scenes in our country; and thus, the interior home style and colour matching design method has practical popularization value.
Owner:SOUTH CHINA UNIV OF TECH

Online detection method of printing machine based on machine vision

InactiveCN102262093AQuick responseCan not eliminate the phenomenon of defectsOptically investigating flaws/contaminationTime responseData segment
The invention relates to the field of machine vision, in particular to a printing machine vision online detection method. It solves the problems of poor real-time response, heavy labor, high labor intensity and low detection level of manual detection of printed defective products. The present invention uses the image scanning device to scan the image of the printed product line by line and transmit it to the controller of the printing machine. After image processing, it is compared with the data segment corresponding to the printed image file prestored in the vision controller. If there is inaccurate registration, For defects such as missing printing, ghosting, and color difference, the interface circuit of the machine vision controller outputs a fault signal to prompt the operator to dispose of it or feedback the fault code to the upper controller, and the upper controller performs the next step of control. The invention has fast detection response speed, high precision, real-time detection during the printing process, and avoids printing defective products to the greatest extent.
Owner:张爱明

Low-power design method for wireless sensor network core chip

The invention discloses a low-power design method for a wireless sensor network core chip. According to the low-power design method for the wireless sensor network core chip, the working mode of the chip is divided into a normal working mode and a low-power working mode, when the chip works in the normal working mode, the working frequency of the chip can be configured according to requirements of a specific application, and the clock frequency is reduced to save most dynamic power consumption due to unnecessary flipping of a clock; when the chip does not need to process tasks, the chip chooses to work in the low-power working mode, in the low-power working mode, the clock or power supplies in certain regions inside the chip can automatically turn off, and further the dynamic power consumption and the static power consumption are saved. According to the low-power design method for the wireless sensor network core chip, unnecessary power consumption can be reduced substantially whenever the chip works or sleeps, the service life of batteries is prolonged for wireless sensor network nodes, very important significance for power consumption reduction under the condition that the correct working of the wireless sensor network nodes is guaranteed is achieved.
Owner:SOUTHEAST UNIV

Semiconductor device and forming method thereof

The invention discloses a semiconductor device and a forming method thereof. The forming method of the semiconductor device comprises the steps as follows: a substrate including a first region and a second region is provided; a dielectric layer is arranged on the surface of the substrate; a first opening for exposing the surface of the substrate is formed in the dielectric layer of the first region; a second opening for exposing the surface of the substrate is formed in the dielectric layer of the second region; a first gate dielectric layer is arranged at the bottom of the first opening; a second gate dielectric layer is arranged at the bottom of the second opening; a first work function layer is formed on the side wall and the bottom surface of the first opening; a work function barrier layer is formed on the surface of the first work function layer; a second work function layer is formed on the dielectric layer, the work function barrier layer, and the side wall and the bottom surface of the second opening; the work function barrier layer is used for blocking mutual diffusion of materials of the first work function layer and the second work function layer; after the second work function layer is formed, a first gate electrode layer for fully filling the first opening and a second gate electrode layer for fully filling the second opening are formed; and the performance of the formed semiconductor is improved.
Owner:SEMICON MFG INT (SHANGHAI) CORP

Preparation method of rigid structure reinforced phenolic aerogel heat shielding material

ActiveCN105601854ASolve problems that are difficult for large-scale engineering applicationsStrong dimensional stabilityEngineeringSolvent
The invention relates to a preparation method of a rigid structure reinforced phenolic aerogel heat shielding material. The method includes: firstly dissolving phenolic resin in a solvent in a vacuum impregnation container to form a phenolic solution, then pressing a three-dimensional fiber structure into the phenolic resin solution, and conducting vacuum pumping on the vacuum impregnation container, after a period of time, opening a seal cover to maintain smooth air pressure with the outside and conducting standing for a period of time, then taking out the three-dimensional fiber structure and putting it into an oven to perform drying, and conducting high temperature curing to form a rigid three-dimensional fiber structure, then mixing resorcinol, furfural, ethanol and sodium hydroxide uniformly in proportion in the vacuum impregnation container to form a reactant solution, then pressing the rigid three-dimensional fiber structure into the solution, conducting vacuum pumping on the vacuum impregnation container again, maintaining the state for a period of time, then placing the vacuum impregnation container into the oven to carry out sol-gel process, and finally taking out the gel-containing three-dimensional fiber structure and performing drying, thus obtaining the rigid structure reinforced phenolic aerogel product.
Owner:BEIJING SATELLITE MFG FACTORY

Band tailoring sewing machine

The present invention provides a band tailoring sewing machine which performs appropriate band tailoring. The band tailoring sewing machine comprises the following components: a seedling needle vertical moving mechanism; a band splint; band presser feet; a carrying platform; clothes presser feet; a first moving mechanism; a second moving mechanism; a splint moving mechanism; a single fork-shaped component; and a control unit which performs the control described as follows: overlapped stitch forming is controlled; a driving source of the second driving mechanism is used as a feeding motor; crease mark stitches which are used as crease are formed in the width direction of the band held by the band splints; the splint moving mechanism is used for moving the band splint in a direction of turning-back from the crease mark stitch; the overlapped stitch stitches are formed on the crease mark stitches at a state of being shielded by the turned-back band; and the correction of positions of theoverlapped stitches is controlled; the feeding motor of the second moving mechanism is controlled when the overlapped stitches forming control is performed, and the correction control to the forming positions of the overlapped stitches correspondingly to the crease mark stitches is performed.
Owner:JUKI CORP

Supercritical expansion processing method for drying cigarette

The invention discloses a method for processing supercritical expansion of cigarettes dried in the air, which comprises the following steps: a. tobacco leaves are loosened and humidified to increase the water ratio and the temperature of the tobacco leaves so that the tobacco leaves are loosened and the moisture content is even, materials are added to humidify the tobacco leaves; b. the tobacco leaves are cut into leaf threads; c. the leaf threads are stored; d. the leaf threads are put into a dipping mangle to be dipped for 20 to 60 seconds; e. the loosening, storage and feeding are performed; f. the leaf threads are expanded; g. the cooling, resurgence and perfuming processes are performed; and h. the foreign matters in the expanded leaf threads are removed. The method can apparently reduce the tar content, meet the style feature of cured tobacco products, and increase the dried tobacco filing value, thereby reducing the usage amount of finished products of tobacco shreds, and reducing the formulation cost; moreover, the method sufficiently adopts the function of expanded tobacco shreds on the specific incense and the form of smoke gas; and the formulation structure has relatively high adjustability, thereby effectively adjusting indexes such as the incense, concentration, taste, comfort and the form of smoke gas, and improving the formulation usability.
Owner:CHINA TOBACCO SICHUAN IND CO LTD +1

Channelized high-precision real-time spectral analysis method and channelized high-precision real-time spectral analysis system

The invention relates to the technical field of wireless communication signal analysis, in particular to a channelized high-precision real-time spectral analysis method and a channelized high-precision real-time spectral analysis system. According to the channelized high-precision real-time spectral analysis method, radio-frequency signals are collected through reception, high-frequency signals are converted into middle-frequency signals and then subjected to channelized decomposition, and grouped low-pass filtering treatment is performed to display frequency spectrum information. The channelized high-precision real-time spectral analysis method and the channelized high-precision real-time spectral analysis system have the advantages that the analysis bandwidth is wide, frequency resolution is high, procedure codes are concise, the data processing structure is efficient, and a universal frequency spectrum analysis platform is easy to set up; the method and the system are applicable tofrequency spectrum detection and management of radios for civil use, and suitable for design demand of the military fields such as radar and electronic countermeasures, and have high significance in development of people's livelihood, stabilization of national defense and the like.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI

Two-alloy compounded functionally gradient monocrystal blade material and preparation method thereof

The invention discloses a two-alloy compounded functionally gradient monocrystal blade material and a preparation method thereof and belongs to the technical field of high-temperature alloy and preparation thereof. The blade root and middle part of a monocrystal blade are made of Ni-based high-temperature alloy, and the blade top of the monocrystal blade is made of monocrystal blade material of Ni3Al-based hyperthermia alloy; the blade root and middle part of the material are predicted to have a better medium and low temperature service performance, and the blade top of the material is predicted to have better hyperthermia service performance. The preparation method comprises the steps of design of form, pouring technology, monocrystal growth control and thermal treatment system. According to the invention, through the design of a narrow passage of a graining device, the longitudinal distribution of two alloys in the blade can be accurately controlled, so that the process stability and material designability are greatly improved; the obtained monocrystal blade material realizes functionally gradient service and meets the design demands of new-generation aero-engines.
Owner:BEIHANG UNIV

Layout structure of circuit board

A layout structure of a circuit board comprises a first signal layer, a second signal layer and a third signal layer, wherein, the first signal layer is provided with a transmission line; the second signal layer overlaps with the first signal layer; the second signal layer is provided with an opening; the third signal overlaps with the first signal layer and the second signal layer; the second signal layer is positioned between the first signal layer and the third signal layer; the third signal layer is electrically connected with the second signal layer, and both the second signal layer and the third signal layer are ground planes or power supply layers; and the orthographic projection of a line segment of the transmission line on the third signal layer overlaps with the orthographic projection of the opening on the third signal layer. Therefore, the line segment of the transmission line is increased or reduced according to the equivalent impedance obtained by the second signal layer and the third signal layer.
Owner:COMPAL ELECTRONICS INC

A frame strength test device based on a center pin loading mechanism

InactiveCN109387382AAvoiding the inherent problems of blocking interferenceAvoid timeRailway vehicle testingBogieSpherical bearing
The invention relates to a frame strength test device based on a center pin loading mechanism, belonging to the field of a force loading device for frame strength tests of railway vehicle bogies. Theframe strength test device based on a center pin loading mechanism comprises a simulation center pin loading mechanism, a universal spherical bearing, a transverse stop spherical bearing, two stop seat rubber pads, two force-measuring type traction rods, two transverse force loading actuators and a longitudinal counter-force rod, wherein the simulation center pin loading mechanism comprises a tubular core barrel, a force-measuring traction rod seat, a transverse force symmetrical slope surface loading seat, a counter-force rod loading hinge shaft seat and a transverse stop spherical bearing. The device has the advantages of exquisite structure, compact layout and easy assembly, operation and maintenance; the device can not only avoid the problems of component blocking interference and large time lag error of a load cell, but also greatly save the manufacturing cost, increase the test precision and improve the production efficiency.
Owner:CRRC CHANGCHUN RAILWAY VEHICLES CO LTD

White ink with high reflectivity as well as preparation method and application thereof

The invention discloses white ink with high reflectivity. The white ink is prepared from the following raw materials in parts by weight: 3 to 8 parts of polyester resin, 1 to 6 parts of organic silicon resin, 10 to 30 parts of titanium dioxide, 2 to 4 parts of ultraviolet absorbent, 2 parts of accelerant, 10 parts of tripolymer curing agent, 0.5 part of gaseous silicon dioxide, 0.05 part of fluorine surfactant, and 30 parts of solvent. The invention also discloses a preparation method of the white ink with the high reflectivity and application in a flexible copper-coated plate. By adopting thewhite ink with the high reflectivity produced in the invention, the white ink with high performance can be directly smeared on a single-surface FCCL base material to form a special base material foran LED, so that the downstream process can be saved, the efficiency can be improved, and the commercial value is relatively high.
Owner:江西华莲欣科技有限公司

Industrial volatile organic pollutant purifying system dedicated to painting workshops

The invention relates to an industrial volatile organic pollutant purifying system dedicated to painting workshops. The system comprises a catalytic gas inlet heater, a catalyzing bed, a catalyzing fan, a heat exchanger, an adsorption bed, an adsorption fan, a spraying and filtering device, a fire barrier, a filter, a desorption gas circulating fan, a desorption gas circulating heater and an adsorption bed desorption heater, wherein an industrial volatile organic pollutant waste gas inlet, a purified gas outlet, a desorption waste gas outlet, a desorption gas inlet, a desorption gas circulating outlet and a desorption gas circulating inlet are formed on the adsorption bed; and the heat exchanger is provided with a catalyzed tail gas inlet, a catalyzed tail gas outlet, a catalyzed gas inlet, a catalyzed gas outlet, a desorption gas supply inlet and a desorption gas supply outlet. The system improves the treatment heat efficiency, reduces the heat loss, improves the heat recovery rate, is more uniform in the temperature in the catalyzing bed during combustion, improves the combustion efficiency and the purification rate, improves heat exchange, more reasonably utilizes heat energy, and meets the requirements on energy conservation and emission reduction.
Owner:赛智环保科技(天津)有限公司

Buffer type large-torque spring restoration executing mechanism

The invention relates to a pneumatic executing mechanism, in particular to a buffer type large-torque spring restoration executing mechanism with a final position pneumatic buffer structure, and belongs to the technical field of pneumatic executing mechanisms. The buffer type large-torque spring restoration executing mechanism comprises a cylinder body. The outer side of a left cylinder cover is connected with a left cylinder cover pressing plate through bolts. A guide sleeve is disposed in the cylinder body. The guide sleeve is tightly pressed on the left cylinder cover through the left cylinder cover pressing plate. The right side of a right cylinder cover is connected with a converting box through bolts. The rear end of the converting box is connected with a buffer air chamber. The rear end of the buffer air chamber is connected with the rear cylinder cover of the buffer air chamber. A buffer seat is connected to the rear cylinder cover of the buffer air chamber. A buffer plunger is slidably mounted in the buffer seat. The buffer type large-torque spring restoration executing mechanism has the advantages that the drive requirements of a valve acting frequently can be satisfied, internal component damage, caused by frequent acting, of the executing mechanism can be avoided effectively, and accordingly maintenance frequency can be lowered, and economical benefits can be increased.
Owner:WUXI SMART AUTO CONTROL ENG CO LTD

High-speed sorting system and method for realizing precise delivery and precise sorting

InactiveCN106493085AThe influence of speed instability is smallLow costSortingEngineeringVisual positioning
The invention discloses a high-speed sorting system and a method for realizing precise delivery and precise sorting. The high-speed sorting system comprises an annular line, a bracket for supporting the annular line, more than one electric trolley mounted at an upper end of the annular line for transporting postal parcels, a parcel supplying platform for loading the postal parcels, and a sorting port for sorting the postal parcels, wherein at least one sorting port is formed in an outer side end of the annular line and is arranged adjacent to the electric trolley; a high-performance reflective photoelectric switch for zero detection of a trolley and a trough type switch for judging the number of passing trolleys are further arranged at a bottom position on the annular line. The control solution in the invention is high in precision, easy to realize, low in requirement on speed stability of the annular line and the electric trolley, simple in structure, and lower than visual positioning in cost.
Owner:深圳市鹏洲智能科技有限公司

Method for testing inductance

The invention discloses a method for testing inductance. A wafer comprises an inductor arranged on the wafer and an external lead wire connected with the inductor, and the external lead wire comprises a first lead wire for making the inductor grounded, a second lead wire and a third lead wire which are used for making the two ends of the inductor respectively connected with corresponding bonding pads. The method comprises the following steps of: measuring a first parameter containing the inductor and the external lead wire; removing the inductor to obtain an open circuit structure containing the external lead wire; measuring a second parameter of the open circuit structure; mutually connecting the external lead wire of the open circuit structure to form a short circuit structure; measuring a third parameter of the short circuit structure; acquiring a fourth parameter for expressing an inductance value by deducting the second parameter and the third parameter from the first parameter. By the method, the inductance value of a tested inductor is more accurate and the error range is 2 percent.
Owner:SEMICON MFG INT (SHANGHAI) CORP +1

Method and system for managing wireless network interface based on DPDK

The invention discloses a method and a system for managing a wireless network interface based on DPDK, and relates to the field of wireless function technology development of soft forwarding equipmentfor realizing network virtualization. The method comprises the following steps: creating tx_ring and rx_ring managed by a user mode DPDK for each wireless network interface, and binding the tx_ring and the rx_ring into a virtual transceiving port of the DPDK; based on the AF_PACKET, respectively creating a transceiving socket of a direct connection hardware layer for each wireless network interface, and setting rx_lock and tx_lock based on a packet mapping mode; mapping tx_ring to the kernel space of tx_lock by adopting memory mapping, and mapping rx_ring to the kernel space of rx_lock to realize memory sharing; and directly polling the tx_ring and the rx_ring through the DPDK to finish the transceiving of the frame. According to the method, kernel protocol stack processing is skipped, and data copying operation during one-time receiving and sending is omitted; wireless driving does not need to be changed, and time delay is qualified.
Owner:FENGHUO COMM SCI & TECH CO LTD

Pro/E based ground of cutter-suction dredger reamer parametric design method

The invention discloses a Pro / E based ground of cutter-suction dredger reamer parametric design method. Pro / ENGINEER4.0 three-dimensional modeling software serves as supporting software, an object-oriented VS2005 programming language serves as a development tool, a built-in application interface Pro / TOOLKIT of the Pro / ENGINEER is selected, a three-dimensional parametric model template is combined with program control, a Pro / ENGINEER based application system is developed, and accordingly the parametric design is implemented. A designer can input parameters such as the yield, the efficiency or the transverse movement speed during design to obtain a corresponding three-dimensional reamer. Compared with the traditional design method, the repeated work can be reduced, the design efficiency can be improved, the stress analysis and the optimization design of the reamer are facilitated, and the design requirements of modern products are met.
Owner:HOHAI UNIV CHANGZHOU

Environment-friendly product abnormal information supply chain management system and method

The invention relates to a supply chain managerial system and a method of a green environmental protection product abnormal information, which comprises the following parts: a producing module for producing the product according to manufacturer' s production flow, a material supplying module for providing the needed material of product according to the manufacture' s needs; a safety decision module for analyzing and evaluating the material supplied by supplier in order to generate and provide the purchasing advice; a material testing module for receiving the material supplied by the supplier and testing the material in order to provide the material testing report information, an environmental protection grade separation module for getting the purchasing advice information and the material testing report information and proceeding the evaluating work and classifying the environmental protection grade of the material according to the evaluating result.
Owner:MITAC COMP (SHUN DE) LTD +1

Cutting machine and cutting control device

The invention provides a cutting machine and a cutting control device, and relates to the technical field of cutting equipment. The cutting machine includes a frame on which a loading platform for placing materials, a A cutting knife and a positioning piece and a limiting piece for limiting the position of the material on the loading platform; between. The cutting control device includes a control system and the above-mentioned cutting machine, and the control system is electrically connected with the cutting machine. The cutting machine and the cutting control device solve the technical problems in the prior art that the size deviation of the patch stone after cutting is large, affects the subsequent construction, and the cutting efficiency is not high, time-consuming and laborious, and achieves small size deviation after cutting, The cutting process is highly efficient and has the technical effect of saving time and effort.
Owner:浙江久石工研建材科技有限公司

Single event transient resistant clock tree structure

The invention discloses a single event transient resistant clock tree structure, comprising a root node clock drive unit, sub-node clock drive units and leaf node clock drive units. The root node clock drive unit and the sub-node clock drive units are clock phase inverters or buffers. The leaf node clock drive units are two-way filters. The two-way filters can eliminate single event transient pulses which are generated on input signals, wherein the pulse widths of the single event transient pulses are smaller than delay time set in the filters, and the same input signal outputs two ways of non-interfering output signals. Each two-way filter drives the certain number of two-clock single event resistant time sequence units. According to the clock tree structure, the single event transient resistant capability of a clock tree network is clearly improved, the probability that the single event transient pulses are generated on any clock node or a plurality of clock tree nodes when the clock tree network is bombarded by radiation events can be effectively reduced; and compared with an integrated circuit realized in a time sequence unit single event transient reinforcement mode, the clock tree structure is characterized by low power consumption, fast speed and small area.
Owner:BEIJING MXTRONICS CORP +1

Path optimization method, electronic device and storage medium

The embodiment of the invention relates to the field of robots, and discloses a path optimization method, an electronic device and a storage medium. In some embodiments of the invention, the path optimization method comprises the steps of obtaining a path planned based on a navigation map of a robot; aiming at the track points on the path, respectively carrying out the following operations to optimize the path: determining the position information of the central point of the expansion area of the obstacle closest to the track points, and the first distance from the track points to the centralpoint; determining a first elliptical boundary which takes the central point as the center, takes the first preset value as the long axis length, takes the second preset value as the short axis lengthand has the long axis direction parallel to the advancing direction of the track point; according to the first elliptical boundary, determining a second distance from an intersection point of a straight line where the center point and the track point are located and the first elliptical boundary to the center point; and optimizing the pose of the robot at the track point according to the first distance, the second distance and a preset obstacle cost function. In the embodiment, the optimized path is smoother.
Owner:CLOUDMINDS SHANGHAI ROBOTICS CO LTD

Thin film transistor (TFT) array substrate and manufacture method thereof

The invention relates to a TFT array substrate and a manufacture method thereof. The method includes the steps of first forming a first patterned conducting layer comprising a plurality of scanning lines and a plurality of grid electrodes connected with the scanning lines on the substrate; then forming a patterned grid insulating layer with a plurality of open pores on the substrate so as to cover the first patterned conducting layer and forming a plurality of dielectric patterns in the open pores; subsequently, forming a plurality of semiconductor patterns on the patterned grid insulating layer; after that, forming a second patterned conducting layer on the semiconductor patterns, the patterned grid insulating layer and the dielectric patterns; then forming a protective layer on the semiconductor patterns, the patterned grid insulating layer and the dielectric patterns; and finally forming a plurality of pixel electrodes on the protective layer. The invention can decrease the number of driving elements to achieve the purpose of reducing cost, simultaneously integrate the characteristic stability and high storage capacitance value of the TFT elements to satisfy the requirements on the design of the elements, and also achieve the effect of lessening the number of photo masks.
Owner:AU OPTRONICS CORP

Asymmetric dipole antenna

The invention discloses an asymmetric dipole antenna. A radiation module and a grounding module which are formed by metal conductors and distributed at intervals are arranged on a substrate of the antenna. The radiation module and the grounding module are respectively provided with a radiation base part and a grounding base part, and two ends of the two base parts respectively extend in reversed mode to form two radiation support arms and two grounding support arms. The first radiation support arm and the second radiation support arm are orthogonal on the radiation base part, and the second radiation support arm extends toward the first radiation support arm in bending mode to form an arc shape body with an opening facing to the first radiation support arm. The first grounding support arm and the second grounding support arm are orthogonal on the grounding base part, the second grounding support arm forms a hook-shaped body extending and bending toward the first grounding support arm, and a feeder unit is used for connecting the feed point and the grounding point of the two base parts in feeding mode. The asymmetric dipole antenna can generate enough gaining effect. The field shape is not apt to be influenced according to test, blind points are shallow, and a radiation field is round, so that the condition of bad communication quality cannot occur easily on signal transceiving. The asymmetric dipole antenna is simple in structure, low in manufacture complexity and the like.
Owner:ACCTON TECHNOLOGY CORPORATION

Dual self-holding optical fiber ribbon type wiring optical cable

The invention discloses a dual self-holding optical fiber ribbon type wiring optical cable. The dual self-holding optical fiber ribbon type wiring optical cable comprises an optical fiber ribbon, reinforcement members, messenger wires and an oversheath. The wiring optical cable is symmetrical on the left and on the right; the optical fiber ribbon is disposed at the center of the wiring optical cable; the two messenger wires are respectively disposed at the left end and the right end of the wiring optical cable; the two reinforcement members are respectively disposed between the optical fiber ribbon and the corresponding messenger wires; and the oversheath is disposed at the peripheral side of the wiring optical cable. The wiring optical cable provided by the invention is large in cable core number, small in dimension and high in tensile strength, and can be applied to machine room wiring or fiber to the premise of indoor and outdoor buildings.
Owner:NANJING WASIN FUJIKURA OPTICAL COMM LTD

Inverted sound box structure

An inverted sound box structure comprises a sound box housing, a loudspeaker unit and a fastener, wherein a front sound box is arranged on a first side of the sound box housing; the loudspeaker unit comprises an electrode and a loudspeaker, and the electrode is located at the bottom of the loudspeaker; the sound-out surface of the loudspeaker is arranged on the sound box housing to give out a vibration sound into the front sound box; and the fastener is used for buckling the loudspeaker on a second side of the sound box housing, and one end of the fastener is elastically propped against the bottom of the loudspeaker and is electrically connected with the electrode.
Owner:SHENZHEN YUXINXIN ELECTRONICS

Cigarette body for circumferential heating non-burning cigarette

PendingCN109497618AAvoid problems that affect the tasteMeet design requirementsTobacco devicesFiberCooking & baking
The invention discloses a cigarette body for a circumferential heating non-burning cigarette. The cigarette body is formed by successively connecting a cigarette core substrate (1), a paper tube unit(2), a filter rod unit (3) and a condensing unit (4). The paper tube unit (2), the filter rod unit (3) and the condensing unit (4) are wrapped by composite molding paper (5). The cigarette core substrate (1) is wrapped by cigarette paper (6). The composite molding paper (5) and the cigarette paper (6) are wrapped by tipping paper (7). The condensation unit (4) is processed by a high-molecular polymer material or a high-molecular polymer silk and diacetate fiber silk blend material. The paper tube unit is added between the cigarette core substrate and the filter rod unit to avoid the fact thata high-molecular polymer material of the filter rod unit collapses under direct or indirect baking of circumferential heating and generates plastic smell. The cigarette body structure is more in linewith the design requirements of the circumferential heating non-burning cigarette.
Owner:CHINA TOBACCO YUNNAN IND

Method and device for measuring refractive index of curved optical component based on Brewster's law

The invention discloses a method and a device for measuring a refractive index of a curved optical component based on Brewster's law, and belongs to the field of optical precision testing. A concentrated laser beam is used instead of a small-diameter parallel laser beam as incident light. Extended beam laser is focused on the apex of a surface of the medium to be tested. The problem caused by beamdivergence is eliminated with a smaller spot area. Reflected light intensity distribution is obtained by using an area array detector. The DC of light intensity minimum detection is converted to thedarkest position of laser dark spot detection, and accurate quantification for Brewster's angle is realized by using digital image processing, which is insensitive to time-varying stray light and motion errors, thereby solving a precision problem caused by motion. At the same time, the time for a single measurement is shortened, thereby achieving accurate measurement for refractive index parameters of the curved optical component. Compared with a traditional Brewster's angle measuring device, the device of the invention has a simpler structure, and device costs and measuring time are reduced while effectively improving the measuring precision.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Method for improving growth efficiency of silicon carbide crystals

The invention discloses a method for improving growth efficiency of silicon carbide crystals. A device for realizing the method comprises a lead angle crucible for growing silicon carbide single crystals, an induction heating coil, a heat preservation system and a seed crystal. According to the method provided by the invention, when the silicon carbide crystals are grown, lead angles of the edge of the crucible have the following effects: 1, the lead angles improve the temperature gradient close to the seed crystal; 2, the lead angles guide volatile atoms to the low-temperature seed crystal; 3, the lead angles reduce crystallization of the volatile atoms at the lead angle position; and 4 the lead angles improve length of the grown crystals.
Owner:ZHEJIANG EAST CRYSTAL BOLANTE PHOTOELECTRIC

An ultrathin white covering film and an LED substrate using the white covering film

The invention discloses an ultrathin white covering film and an LED substrate using the white covering film, the ultrathin wite covering film comprises a white ink layer and an adhesive layer, whereinthe white ink layer is located on the upper surface of the adhesive layer; the total thickness of both the white ink layer and the adhesive layer is 4 to 50 [mu]m, wherein the thickness of the whiteink lay is 1. 25 [mu]m, and the thickness of the adhesive layer is 3 to 25 [mu]m; The white ink layer comprises a composition of an organic pigment and a white filler, at least one of an inorganic pigment and an organic pigment, the inorganic pigment being a white pigment or a grey pigment, the organic pigment being a highly transparent polymer, and the white filler being at least one of silicon dioxide, titanium dioxide, alumina and alumina. The ultrathin white coating film has extremely low dielectric constant and loss, extremely high ion purity, high reflectivity, high temperature yellowingresistance, low penetration rate, low gloss, high flexibility, low rebound force, high surface hardness and good weather resistance, and is particularly suitable for use in LED lighting with high performance of a soft-hard combined plate.
Owner:KUSN APLUS TEC CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products