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166results about How to "Guaranteed miniaturization" patented technology

Photovoltaic array design simulation optimization method

The invention discloses a photovoltaic array design simulation optimization method, and relates to the technical field of intelligent photovoltaic system optimization, and the method comprises the steps: designing a photovoltaic array according to a herringbone shape, and constructing a photovoltaic array three-dimensional model; based on the photovoltaic array three-dimensional model, a computer domain and boundary conditions, multi-physics field coupling simulation setting is carried out; training a machine learning model by using historical data, predicting interaction among different physical fields, and identifying a key region needing higher grid density according to conditions set by multi-physical field coupling simulation; dynamically adjusting the grid density according to the identified key area; operating multi-physics field coupling simulation by using the adjusted grid density, and evaluating the performance of the photovoltaic array; and adjusting the design scheme of the photovoltaic array according to the evaluation result. According to the method, through herringbone design and multi-physical field simulation, the grid is optimized in combination with machine learning, the photovoltaic array performance is comprehensively evaluated and improved, the photovoltaic technology innovation is promoted, and the cost is effectively reduced.
Owner:SUZHOU YIMI NEW ENERGY TECHNOLOGY CO LTD

Low-total-length 8M foresight optical lens

The utility model relates to a low total length 8M foresight optical lens, which is characterized in that an optical system of the lens is composed of a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens and a seventh lens which are sequentially arranged from left to right along a light incident light path. The lenses are made of plastic and glass materials, the first lens, the second lens, the fourth lens, the fifth lens and the sixth lens are glass spherical lenses, the third lens and the seventh lens are plastic aspheric lenses, and the fifth lens and the sixth lens form a balsaming lens group. By reasonably distributing the focal power and the surface type of each lens, the central thickness of each lens, the distance between the lenses on the optical axis and the like, the total length of the lens and the radial size of each lens are reduced while the requirements of a front-view wide-angle camera and a front-view narrow-angle camera are replaced by the low-total-length 8M ultra-wide-angle imaging performance of the lens; and the lens group is miniaturized.
Owner:FUJIAN FUGUANG TIANTONG OPTICS

High-brightness low-cost DMD welcome lamp lens

ActiveCN222506635ULarge apertureReduce Tolerance SensitivityProjectorsRefractorsOphthalmologySmall lens
The utility model relates to a high-brightness low-cost DMD welcome lamp lens. An optical system of the lens is composed of a first lens, a second lens, a third lens, a diaphragm, a fourth lens and a fifth lens which are sequentially arranged from left to right along a light incident light path. The lenses are made of plastic and glass materials, the first lens, the second lens, the third lens and the fourth lens are plastic aspheric lenses, and the fifth lens is a glass spherical lens. By reasonably distributing the focal power and the surface type of each lens, the central thickness of each lens, the axial distance between the lenses and the like, the imaging performance requirement of the lens is met, the total length of the lens and the radial size of each lens are reduced, and the miniaturization of the lens group is realized.
Owner:FUJIAN FUGUANG TIANTONG OPTICS

Six-piece type side rear-view camera

The utility model relates to a six-piece type side rear-view camera. An optical system of the camera is composed of a first lens, a second lens, a diaphragm, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from left to right along a light incident light path. Under the condition that retroflexion caused by aspheric coefficients is not considered, the first lens is a meniscus concave negative lens, the second lens is a biconvex positive lens, the third lens is a biconvex positive lens, the fourth lens is a meniscus concave negative lens, the fifth lens is a biconvex positive lens, the sixth lens is a plano-concave negative lens, and all the lenses are made of glass materials. Wherein the first lens is a glass aspheric lens, and the third lens and the fourth lens form a balsaming lens group. While 3M clear imaging is realized, the number of sheets is relatively small and the appearance size is relatively small.
Owner:FUJIAN FUGUANG TIANTONG OPTICS

DMD welcome lamp lens with short total length

ActiveCN222636370ULarge apertureReduce Tolerance SensitivityProjectorsRefractorsOphthalmologyAspheric lens
The utility model relates to a DMD welcome lamp lens with short total length, the lens is composed of a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens and a seventh lens from left to right along a light incident light path, the lenses are made of glass materials, the first lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are glass spherical lenses, the second lens is a glass aspheric lens, wherein the third lens and the fourth lens, and the fifth lens and the sixth lens form a balsaming lens group. By reasonably distributing the focal power and the surface type of each lens, the central thickness of each lens, the axial distance between the lenses and the like, the imaging performance requirement of the lens is met, the total length of the lens and the radial size of each lens are reduced, and a 33 mm lens group is formed.
Owner:FUJIAN FUGUANG TIANTONG OPTICS

Large-aperture six-piece type side rear-view camera

ActiveCN222365131UComprehensive monitoringReduce Tolerance SensitivityMountingsView cameraOphthalmology
The utility model relates to a large-aperture six-piece type side rear-view camera, and the optical system of the camera comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are provided with focal power along an incident light path, and a diaphragm is arranged between the second lens and the third lens. Wherein the third lens and the fourth lens are closely connected to form a balsaming lens group; the first lens is a biconcave negative lens, the second lens is a biconvex positive lens, the third lens is a biconvex positive lens, the fourth lens is a biconcave negative lens, the fifth lens is a biconvex positive lens, and the sixth lens is a meniscus concave negative lens. The first lens, the second lens, the third lens and the fourth lens are glass spherical lenses, and the fifth lens and the sixth lens are glass aspheric lenses. The imaging angle of an object is larger than 80 degrees, and meanwhile, the camera has the advantages that the imaging definition is 3M, the F number is 1.4, the tolerance sensitivity is low, the high-low temperature stability is good and the like, and scenes behind the side of a vehicle and far away from the vehicle can be monitored more comprehensively.
Owner:FUJIAN FUGUANG TIANTONG OPTICS

Multi-scale multi-attention IoT attack detection method for privacy protection

The invention discloses a privacy-protected multi-scale multi-attention IoT (Internet of Things) attack detection method, which comprises the following steps of: firstly, acquiring an IoT attack data set, and preprocessing IoT attack data in the IoT attack data set; and secondly, constructing an IoT attack detection deep learning model integrating multi-scale feature extraction and a lightweight multi-attention module, and inputting preprocessed IoT attack data to obtain an IoT attack detection result. And finally, combining the IoT attack detection deep learning model with federated learning, and obtaining an optimal IoT attack detection deep learning model through multiple iterations and parameter tuning. According to the method, the detection capability of multi-stage attacks in a dynamic environment is improved, meanwhile, the lightweight of the module is kept, the method is suitable for IoT equipment with limited resources, and the data privacy is effectively guaranteed.
Owner:HANGZHOU DIANZI UNIV

Tunable polarization photon source based on perovskite quantum dots and preparation method thereof

The invention relates to the technical field of molecular optoelectronic devices, and particularly discloses a tunable polarization photon source based on perovskite quantum dots and a preparation method thereof, and the method comprises the following steps: transferring a graphene-PMMA structure to the surface of a silicon wafer, and marking a pattern; manufacturing an outer lead electrode on the graphene according to the pattern; manufacturing a graphene electrode pair; and preparing chiral molecules with adjustable chirality: condensing the chiral molecules and graphene electrode amide, then adding a perovskite quantum dot precursor solution for reaction, and assembling quantum dots between the graphene electrode pairs in situ to obtain the tunable polarized photon source. According to the graphene electrode single-molecule device based on the dotted line etching method, a circularly polarized photon source is constructed, and quantum dots with high quality and controllable morphology are constructed by connecting chiral molecules to the edge of a graphene electrode and introducing chiral sites to assemble the quantum dots in situ; the molecular connection success rate is greatly improved; meanwhile, the molecular connection period is shortened.
Owner:NANKAI UNIV

Low-total-length 8M foresight main camera

The utility model relates to a low total length 8M foresight main camera. An optical system of the main camera is composed of a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens and a seventh lens which are sequentially arranged from left to right along a light incident light path. The lenses are made of plastic and glass materials, the first lens, the second lens, the fourth lens, the sixth lens and the seventh lens are glass spherical lenses, the third lens and the fifth lens are plastic aspheric lenses, and the sixth lens and the seventh lens form a balsaming lens group. By reasonably distributing the focal power and the surface type of each lens, the central thickness of each lens, the axial distance between the lenses and the like, the total length of the lens and the radial size of each lens are reduced while the requirements of a front-view wide-angle camera and a front-view narrow-angle camera are replaced by the low-total-length 8M ultra-wide-angle imaging performance of the lens, and the miniaturization of the lens group is realized.
Owner:FUJIAN FUGUANG TIANTONG OPTICS

Rapid incremental learning technology based on pulse brain-like model

The invention discloses a fast incremental learning technology based on a pulse brain-like model, and belongs to the technical field of computer vision. According to the invention, a Yolov3-tiny model is selected as a basic model of SpikingYolov3 of the spiking neural network, and the adaptability of the Yolov3-tiny model is improved; an IF neuron model is used as a neuron model of SpikingYolov3; carrying out incremental learning training on the Yolov3-tiny by adopting a method based on network expansion; the weight of the trained model is assigned to the newly constructed SpikingYolov3 through a method of converting ANN into SNN; according to the method, a test image is subjected to coding operation in a Poisson coding mode, so that the test image is converted into an asynchronous pulse sequence, the asynchronous pulse sequence is sent into a Spiking Yolov3 model to be tested and is subjected to comparative analysis with corresponding Yolov3-tiny, and a conclusion that the detection performance of the Spiking Yolov3 model is better is obtained. The SpikingYolov3 is applied to a battlefield environment, so that accurate detection of different types of targets is realized. The problem that a traditional network model needs to be retrained when encountering a new task is solved, and a new solution is provided for a detection task of a complex target.
Owner:HARBIN ENG UNIV

Miniaturized microstrip annular isolation assembly for T-R system

The invention relates to a miniaturized micro-strip annular isolation assembly for a T-R system. The miniaturized micro-strip annular isolation assembly comprises a magnetic conductive sheet, a ferrite substrate, a circuit, two ceramic sheets, two permanent magnets and a resistor, the ferrite substrate is mounted on the magnetic conductive sheet, the circuit is etched on the ferrite substrate through a thin film process, the two ceramic sheets are mounted on the circuit, and the two permanent magnets are correspondingly mounted on the two ceramic sheets respectively; the two permanent magnets are made of samarium cobalt permanent magnet materials and are used for activating the ferrite gyromagnet through the circuit. According to the invention, electrical performance indexes can be achieved and miniaturization can be realized at the same time.
Owner:SHENZHEN NUOXINBO COMM CO LTD

Flash lamp device

The invention provides a flash lamp device. The strobe device includes: a light source; the optical element is located on the light emitting side of the light source, the optical element is used for shaping light emitted by the light source, the field angle of the flash lamp device is adjusted by adjusting the light source or the optical element, and the maximum irradiation angle of the flash lamp device is four times of the minimum irradiation angle. The flash lamp device solves the problem that a flash lamp device in the prior art is difficult to give consideration to the variable field angle and miniaturization at the same time.
Owner:NINGBO SUNNY OPOTECH CO LTD

Motion sickness detection device and system and storage medium

The invention relates to the technical field of physiological signal processing, and discloses a motion sickness detection device and system and a storage medium. Based on a signal preprocessing module, a feature extraction module, a feature weighting module, a global feature capture module and a classification detection module which are sequentially connected, the device executes the following steps: performing preprocessing and data enhancement on an electroencephalogram signal to obtain a preprocessed electroencephalogram signal; a convolution module is used for sampling up and down in a time frequency dimension to obtain local time frequency characteristics of the preprocessed electroencephalogram signals; performing feature weighting on the local time-frequency features to obtain a feature weighted graph; inputting the feature weighted graph into a Transform module to capture global features to obtain the global features; according to the method, global features are used as data to be classified to be input into a full connection layer and finally pass through a Softmax layer to calculate prediction probabilities of multiple categories, so that efficient feature extraction and accurate classification of the electroencephalogram signals are realized, and motion sickness symptoms of a subject are effectively monitored and evaluated.
Owner:HANGZHOU INTERNATIONAL INNOVATION INSTITUTE OF BEIHANG UNIVERSITY

Bidirectional blocking device

The utility model discloses a bidirectional blocking device, and the device comprises a first transistor die and a second transistor die which respectively comprise a first surface and a second surface, the first surface is provided with a source electrode and a grid electrode, and the second surface is provided with a drain electrode; the source electrode conductive channel is connected with the source electrode of the first transistor tube core and the source electrode of the second transistor tube core; the grid electrode conductive channel is connected with the grid electrodes of the first transistor tube core and the second transistor tube core, the first surfaces of the first transistor tube core and the second transistor tube core are oppositely arranged, and the source electrode conductive channel transversely extends between the first surfaces of the first transistor tube core and the second transistor tube core; the first transistor die is in contact with a source of the first transistor die and a source of the second transistor die. According to the bidirectional blocking device provided by the invention, the two transistor tube cores of which the first surfaces are oppositely arranged are connected in series in the direction perpendicular to the surfaces of the tube cores through the conductive channel, so that the on resistance and the size of the device can be effectively reduced.
Owner:BEIJING DUNSI IC DESIGN CO LTD

Construction method and application of air-to-ground-oriented lightweight human body target attitude estimation model

The invention relates to a construction method and application of an air-to-ground-oriented lightweight human body target posture estimation model, and belongs to the technical field of computer visual recognition. The method comprises the following steps: constructing a data set of human body posture estimation; based on an HRNet network structure, designing a deep convolution transformation module to obtain a multi-branch feature fusion module; designing a multi-scale feature fusion module, and combining with the multi-branch feature fusion module to obtain a lightweight human body posture estimation model; and designing a lightweight model optimization algorithm, optimizing the training process of the lightweight human body posture estimation model, and inputting the data set into the optimized lightweight human body posture estimation model for re-training. Through experimental verification, the lightweight human body posture estimation model effectively solves the problems of high calculation complexity and large memory occupation in an existing human body posture estimation algorithm, the calculation efficiency of the model is improved, the model is more suitable for a practical application scene, and the method is simple, effective, good in robustness and high in practicability. The method has a better effect in air-to-ground human body posture recognition.
Owner:AIR FORCE UNIV PLA

Intelligent driving front-view image sensing algorithm based on heterogeneous convolution

The invention discloses an intelligent driving front-view image perception algorithm based on heterogeneous convolution, and the algorithm comprises the steps: S1, carrying out the basic feature extraction of an original image through an initial convolution layer, and enabling the original image to enter a plurality of parallel convolution units which are integrated together; s2, performing feature fusion on the output of the plurality of parallel convolution units in a weighted fusion mode; s3, stacking a plurality of parallel convolution units into a backbone network, and performing multi-scale target detection through an FPN feature pyramid; and S4, after the detection of the targets of multiple scales is finished, completing the training of the intelligent driving front-view image perception algorithm model. According to the intelligent driving front-view image perception algorithm based on heterogeneous convolution, the reasoning efficiency and the feature extraction capability of the model can be remarkably improved, and the balance problem of the lightweight target detection model between the calculation complexity and the feature extraction capability is solved.
Owner:CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD

Heat dissipation type photovoltaic energy storage battery box based on phase change heat conduction

The invention discloses a heat dissipation type photovoltaic energy storage battery box based on phase change heat conduction, and belongs to the technical field of energy storage battery boxes, the heat dissipation type photovoltaic energy storage battery box comprises a direct cooling plate, the front end of the direct cooling plate is fixedly connected with a front frame beam, the rear end of the direct cooling plate is fixedly connected with a rear frame beam, the left side of the direct cooling plate is fixedly connected with a left frame beam, and the right side of the direct cooling plate is fixedly connected with a right frame beam. The right side of the direct cooling plate is fixedly connected with a front frame beam, the right side of the direct cooling plate is fixedly connected with a right frame beam, the front end of the direct cooling plate is fixedly connected with a first support, the first support is fixedly connected with the front frame beam, a second support is fixedly connected above the direct cooling plate, and the front end of the second support is fixedly connected with the first support. The rear end of the second support is fixedly connected with the rear frame beam. According to the structure, light weight, high integration level and high heat exchange efficiency of the box body can be guaranteed, compared with a conventional energy storage box body, the structure is simpler, the space utilization rate is high, the temperature uniformity is good, the heat exchange efficiency is higher, battery loss is reduced, and meanwhile the safety coefficient is improved.
Owner:JIANGSU TIANJUN PRECISION TECH CO LTD

Driving device for coaxial planet row vehicle

The invention discloses a coaxial planet row driving device for a vehicle. The coaxial planet row driving device comprises a shell, a power motor, a planetary reducer gear mechanism and a planet row differential mechanism. The power motor comprises a rotor assembly, a stator assembly and a rotor shaft; the planetary reducer gear mechanism comprises a first sun gear connected with the rotor shaft, a first planet carrier and a gear ring which are arranged in the shell, and a first duplex planetary gear set arranged on the first planet carrier; the rotor shaft, the planetary reducer gear mechanism and the planet row differential mechanism are coaxially arranged, a first output part and a second output part at the two ends of the rotor shaft are connected to the driving wheel, and the first sun wheel is in meshed connection with the first duplex planetary gear set. By designing the planetary reducer gear mechanism with coaxial input and output and the planetary row differential mechanism with parallel axis design, the axial and radial sizes of the driving device are shortened to the maximum extent on the basis of ensuring the gear performance, the miniaturization and light weight of the driving device are facilitated, and the applicability is greatly improved.
Owner:GETRAG JIANGXI TRANSMISSION

Quantum microscope and wide field detection system

The invention relates to the technical field of solid-state spin sensing, and provides a quantum microscope and a wide-field detection system.The quantum microscope is used for microscopic imaging of a diamond NV color center which is excited to generate photoluminescence and comprises a main light path, a detection area, an objective lens, a laser module, a continuous zoom lens, an optical filter and an industrial camera; the continuous zoom lens and the objective lens are combined to shoot the virtual image, the object distance continuous change measurement requirement under the integrated design requirement is met, the objective lens does not need to be replaced, the accuracy of an observation light path can be guaranteed, meanwhile, continuous zoom can be achieved, the clearness of a detection image is guaranteed, and on the basis of the virtual image imaging mode, the measurement precision is improved. The long object distance imaging requirement required by the continuous zoom lens is met, and the miniaturization design of equipment is ensured.
Owner:ANHUI GUOSHENG QUANTUM TECH CO LTD

Unmanned aerial vehicle remote sensing tree species classification method and system fusing cascade canopy attention mechanism

The invention discloses an unmanned aerial vehicle remote sensing tree species classification method and system fusing a cascade canopy attention mechanism, and the method comprises the steps: obtaining unmanned aerial vehicle RGB image data of a campus scene, carrying out the preprocessing of the data, and obtaining a standardized input image; constructing a classification model fusing the cascaded canopy attention mechanism, wherein the classification model comprises a background suppression module, a fine-grained feature guide module, a channel alignment neck module and a global-local fusion classification head; inputting the standardized input image into a classification model, and obtaining an enhanced canopy image through a background suppression module; inputting the enhanced canopy image into a module carrying fine-grained feature guidance, and extracting fine-grained canopy features; performing channel calibration and feature smoothing on the fine-grained canopy features through a channel alignment neck module to obtain feature mapping of a unified dimension; and fusing the global canopy semantics and the local texture structure in the feature mapping by using a global-local fusion classification head, and outputting a tree species classification result.
Owner:NANJING FORESTRY UNIV

Visual inertial navigation tightly coupled SLAM method based on four panoramic cameras

The present invention provides a visual inertial navigation tightly coupled SLAM method based on a four-eye panoramic camera, which belongs to the field of robot autonomous positioning and mapping technology, including: extracting image features of images from four independent and synchronous fisheye cameras; correcting the distortion of the fisheye cameras to obtain corrected feature points corresponding to each image feature; performing panoramic projection on the corrected feature points to obtain corresponding panoramic spherical coordinates; performing posture restoration, using a panoramic vision reprojection angle error function to optimize the restored posture; and running the system with pure vision. n After 1 frame, the fusion optimization of vision and IMU is carried out. The error function used in the fusion optimization is the joint adjustment function constructed by the panoramic vision reprojection angle error and the IMU pre-integration error. When the posture tracking is lost, a new map is established, and loop fusion or map fusion is performed according to the loop detection. The present invention can effectively improve the robustness and stability in extreme environments.
Owner:QUANZHOU INST OF EQUIP MFG +2

Filtering device for printing ink manufacturing

The utility model discloses a filtering device for printing ink manufacturing, and belongs to the technical field of filtering devices. The device comprises a filter box and a scraping mechanism, a driving part is arranged in the middle of the bottom of the filter box, a protective shell is arranged outside the driving part, the scraping mechanism comprises a mounting sleeve, the mounting sleeve is arranged at the output end of the driving part, two symmetrical connecting rods are arranged outside the mounting sleeve, one end of each connecting rod is provided with a third scraping strip, and the other end of each connecting rod is provided with a second scraping strip. A fourth scraping strip is arranged at the bottom end of the third scraping strip, and first scraping strips are arranged at the bottoms of the two connecting rods correspondingly. The outer wall of the protective shell and the inner wall of the filter box are synchronously scraped through the first scraping strip and the third scraping strip respectively, printing ink residues are minimized, raw material waste is reduced, the second scraping strip and the fourth scraping strip which are obliquely arranged are tightly attached to the bottom face of the filter box, dead corner residues which are difficult to treat through a traditional device are effectively removed, and the use effect is good. The problem that raw materials are consumed due to the fact that filtered ink is easily attached to the inner wall and the bottom of equipment and is difficult to scrape thoroughly is solved.
Owner:GANZHOU BANGCHEN COLOR SPRAY TECH CO LTD

Height-adjustable gantry crane detection simulation support

The utility model relates to a height-adjustable gantry crane detection simulation support, two sides of the gantry crane detection simulation support are symmetrically arranged stand column groups, each stand column group comprises two stand columns, the stand columns on the same side are connected through a connecting plate, and guide wheels are mounted at the bottoms of the stand columns; a cross beam is connected between the stand column sets and can be inserted into the positions, at different heights, of the stand column sets through stand column plug pins. A base plate is further connected between the stand column sets and connected with a connecting plate at the bottom in an inserted mode through a base plate plug pin. Compared with the prior art, the gantry crane detection simulation support is connected with the stand column sets in an inserted mode through the pluggable plug pins, so that the whole gantry crane detection simulation support is convenient to mount and dismount, meanwhile, the height of the cross beam can be conveniently adjusted through the plug pins, and different indoor detection requirements can be met.
Owner:SHANGHAI INST OF SPECIAL EQUIP INSPECTION & TECHN RES

A differential current-voltage integrated sensor and a current-voltage measurement system

PendingCN122506219AReduce space consumptionSimple installation and wiring
The application relates to a differential current-voltage integrated sensor and a current-voltage measurement system, and belongs to the technical field of power system monitoring. The application comprises a first half-ring unit and a second half-ring unit based on a double-layer PCB. The two half-ring units are designed in an upper-lower symmetry mode to form an open-close structure. A live bus bar passes through the middle cavity of the two half-ring units, and a Rogowski coil electronic current sensor and a differential D-dot voltage sensor are integrated on the integrated sensor. Based on the integrated sensor, synchronous measurement of current and voltage can be realized, the integrated sensor is highly integrated, the space utilization is extremely optimized, and the integrated sensor has a convenient opening and closing function.
Owner:HUNAN ZHONGSEN COMM CO LTD

Image Sensor

The present invention provides an image sensor. The image sensor comprises: a frame; a circuit substrate, which is arranged in the frame; an optical lens, which is arranged in the frame, and the optical lens and the circuit substrate are arranged at intervals, and the circuit substrate is located in the extension direction of the optical axis of the optical lens; a light source structure, a light source structure is arranged on at least one group of oppositely arranged side walls of the frame, and the light emitting direction of the light source structure is arranged toward the optical lens; a reflective structure, which is arranged between the light source structure and the optical lens, and the reflective structure is arranged at an angle to the optical axis of the optical lens, so that the light emitted by the light source structure is reflected by the reflective structure to the to-be-scanned surface of the image sensor, and the to-be-scanned surface is located on the side of the optical lens away from the circuit substrate. The present invention solves the problem of poor display effect of image sensors in the prior art.
Owner:WEIHAI HUALING OPTO ELECTRONICS CO LTD

Dust cover for front brake disc

The utility model provides a front brake disc dust cover which comprises a cover body, a plurality of mounting bolts are inserted into mounting holes formed in the cover body in a penetrating mode, the rear sides of the mounting bolts are in threaded connection with a hub bearing seat, a plurality of rotating columns are rotationally arranged in the cover body, the rear side of each rotating column is provided with a rotating clamping block, and the rotating clamping blocks are connected with the hub bearing seat in a threaded mode. A plurality of butt joint notches are formed in the front side of the hub bearing seat, each rotary clamping block is installed in cooperation with the adjacent butt joint notch, a limiting ring is arranged on the rear side of the outer arc face of each rotary column, and an elastic driving unit is arranged on the rear side of the limiting ring and the rear side of the cover body. According to the dust cover for the front brake disc, rapid preliminary positioning can be carried out when the dust cover is installed, so that personnel can rapidly install the dust cover without adjustment, the installation time is greatly shortened, the working efficiency is improved, the workload of the installation personnel is reduced, and the labor intensity of the personnel is reduced. And particularly, the fatigue feeling can be obviously reduced during large-batch installation.
Owner:河南淮海汽车部件制造有限公司

Coated steel sheets for hot pressing, hot-formed components, hot-pressed parts and their manufacturing methods, forming apparatus, forming methods, battery housing brackets and battery module

PendingCN122094786AEnsure coating adhesionEnsure friction characteristicsShaping toolsMetal-working feeding devicesElectrical batteryBattery cell
One aspect of the invention relates to a steel suitable for hot pressing, and more specifically, to an aluminum-coated steel sheet for hot pressing, a hot-formed component, and a method for manufacturing the same. Furthermore, another aspect of the invention relates to a forming apparatus and method for forming high-strength steel, and a battery casing support formed by the apparatus and method, and further to a battery pack module.
Owner:POHANG IRON & STEEL CO LTD

High-voltage strontium titanate ceramic material and application thereof

The invention discloses a high-voltage strontium titanate ceramic material and application thereof, and belongs to the technical field of lead-free dielectric ceramic materials. The chemical general formula of the high-voltage strontium titanate ceramic material is (SrmAnBnCqDs) (TixEyFy) O3, wherein m + 2n + q + s = 1, m, n, q, sgt; 0, x + 2y = 1, xgt; 0, 0 < y < = 0.2; the element A and the element B form an A-B heterovalent element pair, the sum of element valence states of the A-B heterovalent element pair is 4, and at least one A-B heterovalent element pair is arranged; the element C and the element D are not element pairs, the valence states of the elements are positive bivalent, and the element A, the element B, the element C and the element D are different in composition elements; the element E and the element F form an EF hetero-valent element pair, the sum of element valence states of the EF hetero-valent element pair is 8, and at least one EF hetero-valent element pair is arranged. The breakdown voltage and capacitance of the high-voltage ceramic capacitor can be improved while the miniaturization of the high-voltage ceramic capacitor is maintained.
Owner:KUNSHAN QINGYUAN ELECTRONIC TECHNOLOGY CO LTD

Corrosion-resistant shield

The application discloses a kind of corrosion-resistant shielding cover, be provided with first shielding cover and second shielding cover, the first shielding cover and second shielding cover between being provided with assembly component, the first shielding cover is provided with first shielding space, the second shielding cover is provided with second shielding space, the first shielding space and the second shielding space for electrical component shielding high-voltage arc are provided with partition, both ensure the structural stability under high pressure environment, and simplify field installation process, partition is guided assembly by hollow groove and adaptive groove, precise positioning is realized, its lifting jack is convenient for operator to operate dismounting, maintenance efficiency is significantly improved, the setting of assembly flange and locking bolt enhances the adaptability with other electrical components, and the design of reinforcing plate embedding assembly side groove is targetedly strengthened local structural strength, effectively resist high-voltage arc impact.
Owner:JIANGSU FEILONG ELECTRICAL CO LTD

A transmitting integrated module of a laser radar

The application discloses a transmitting integrated module of a laser radar, which comprises a chip module, a collimating mirror 1, a collimating mirror 2, an isolator 1, an isolator 2, an isolator 3, a polarization beam splitter, a reflecting / transmitting lens, a reflecting mirror, a coupling mirror 1, a coupling mirror 2, an exit tail fiber, a Faraday rotating mirror and a filter. The application provides a novel integrated laser module, which adopts free space coupling and utilizes light polarization state to realize light path coupling. Since the chip is integrated and packaged, the transmitting module of the laser radar is ensured to be small in size and reliable.
Owner:WUHAN LINGTU SENSING TECH CO LTD