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

30results about How to "Increase the route of transmission" patented technology

Traffic early-warning method, information transmitter, information receiver and traffic early-warning system

The invention relates to a traffic early-warning method, an information transmitter, an information receiver and a traffic early-warning system, belonging to the field of traffic safety. The traffic early-warning method, the information transmitter, the information receiver and the traffic early-warning system are automatically or manually or circularly triggered according to time period. Traffic early-warning information is processed and transmitted by technologies, i.e. the information processing, the radio receiving and transmitting, the directive antenna, the broadcast type communication, the relay retransmission, the alarm display and the like. The propagation path can be widened, the propagation mode can be improved, the propagation distance can be prolonged, and the propagation effectiveness and the information initiative can be improved. The sufficient information sharing among main bodies of the road traffic can be realized. The traffic safety early-warning where the abnormal situation does not form the actual danger, the early-warning distance reaches the furthest kilometer level, and the early-warning time reaches the longest minute level can be provided for vehicle drivers; and a traffic sign facility is used for transmitting the traffic sign information to a receiver on a vehicle through radio wave and transmitting to drivers, and preferably, the receiver transmits an active alarm signal corresponding to the received traffic sign information with the appointed type.
Owner:李庆忠

Nanometer oxide porous membrane electrode and preparing method and application thereof

The invention relates to a nano-oxide porous thin film electrode and preparation method thereof. The thin film electrode comprises two or more layers of oxide semiconductor thin films applied on a substrate, wherein irregular holes are formed in the thin films with a diameter ranging from 0.01 to 10 nm; the particle diameter of the oxide semiconductor material layer is from 5 to 500 nm; the thickness of the thin film is between 1 mum and 50 mum; and the void rate thereof is between 30% and 60% and a specific surface area thereof is between 40 m<2> / g and 130 m<2> / g. The preparation method of the thin film comprises following steps: (1) preparing an acid solution with a concentration of 0.1 to 5 wt%; (2) preparing a nano-colloid slurry of a semiconductor oxide; (3) applying the nano-colloid slurry of the semiconductor oxide onto the substrate; and (4) activating the thin film in an activator solution.The thin film electrode of the invention is prepared at a room temperature thus greatly saving energy resources which can be used as the photo-anode of flexible solar cell.
Owner:INST OF PHYSICS - CHINESE ACAD OF SCI

Image sensor and preparation method thereof

The invention relates to the technical field of semiconductors, and discloses an image sensor and a preparation method thereof. In the image sensor, a plurality of columnar through holes are distributed in a dielectric layer above a photosensitive device of each photosensitive area to form a light guide area which is used for guiding light into a photosensitive device, and incident light can be bound in the light guide area to prevent light rays from being shot into adjacent pixel photosensitive areas during propagation to cause light crosstalk, so that the propagation route of the incident light in the light guide area is improved; and the transmission characteristics of the light guide area can be adjusted by controlling the parameters such as the pore size, the dielectric material, the distribution density and the like of the through holes in the light guide area, and controlling the arrangement mode of the through holes, so that an effect of improving the light intensity of the light shot into the light guide area is achieved. Moreover, based on the conventional image sensor circuit, a plurality of through holes are formed in the dielectric layer above the photosensitive area by using an etching and mat accumulation process, so that the image sensor is easy and convenient to operate and easy for mass production.
Owner:SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI

Silicon carbide nano heat-insulating and wave-absorbing composite material and preparation method thereof

The invention discloses a silicon carbide nano heat-insulating and wave-absorbing composite material and a preparation method thereof. The silicon carbide nano heat-insulating and wave-absorbing composite material is composed of a carbon foam substrate template, a silicon carbide coating enhanced interface and a silicon carbide nanowire network structure. Carbon foam which is not completely decomposed is adopted as the substrate template, the silicon carbide coating enhanced interface with the surface discontinuously and interruptedly distributed is formed, initial silicon carbide nanowires are prepared by adopting the technology of firstly introducing gas and then achieving heating in a chemical vapor infiltration process, a T-shaped pinning structure is formed with the silicon carbide coating enhanced interface, then a residual catalyst is removed by adopting high-temperature oxidation and high-speed carrier gas flow, a T-shaped pinning structure is formed by prepared secondary silicon carbide nanowires and the initial silicon carbide nanowires, the silicon carbide nanowire network structure is formed through mutual interweaving, continuous fusion of the silicon carbide coating enhanced interface and penetration of the silicon carbide nanowires through foam holes are avoided, the heat transmission path is effectively prolonged, meanwhile, reflection and absorption of electromagnetic waves are promoted, and the heat insulation performance is cooperatively improved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Sound insulation window based on magnetic buffer ventilation

The invention discloses a sound insulation window based on magnetic buffer ventilation, and belongs to the technical field of sound insulation. According to the sound insulation window based on magnetic buffer ventilation, in the scheme, a rolling cloth is pulled out from a winding device by rightwards pulling a traction column, and the traction column is clamped on a T-shaped locking rod at any position; through the mutual repulsion effect between magnetic strips and annular magnet blocks, movable liquid bags are driven to move rightwards until making contact with dislocation cushion blocks,so that noise passes through gaps between the movable liquid bags and the dislocation cushion blocks, and is absorbed; and under the mutual attraction effect of the movable liquid bags and magnet sheets, capillary fiber thorns adsorbed on the outer sides of outer rubber layers stand, thus the noise is absorbed, the capillary fiber thorns are arranged to be similar to barbs on the animal tongue, the dust is filtered accordingly, and with accumulation of the dust, built-in sound storage grooves can be filled to simulate multi-void structures, so that the sound insulation effect is further improved.
Owner:NANTONG HAIYING WOOD IND

Preparation method of reduced graphene oxide modified nickel-cobalt-manganese ternary positive electrode material

The invention discloses a preparation method of a reduced graphene oxide modified nickel-cobalt-manganese ternary positive electrode material, which belongs to the technical field of lithium ion batteries. The method comprises the following steps of firstly, carrying out modification treatment on a high-nickel ternary positive electrode material (LiNi0.8Co0.1Mn0.1O2) by utilizing a silane coupling agent, so that the surface of the high-nickel ternary positive electrode material has positive charges, enabling the modified LiNi0.8Co0.1Mn0.1O2 material and a graphene oxide (GO) solution to be subjected to simple solution blending treatment, and achieiving electrostatic self-assembly, and then carrying out heat treatment reduction to obtain a structure of the reduced graphene oxide (rGO) coated high-nickel ternary positive electrode material (LiNi0.8Co0.1Mn0.1O2). The reduced graphene oxide obtained after heat treatment reduction has high electronic conductivity and stable chemical properties and contains a large number of defects, Li<+> can penetrate through the plane of graphene, and high capacity and good recyclability are provided. Through the design of the coating structure, the positive electrode material with relatively high capacity and excellent cycle performance is obtained.
Owner:BEIJING UNIV OF CHEM TECH

Temporary isolated medical bed for patients with infectious diseases

The invention relates to the technical field of medical devices, especially to a temporary isolated medical bed for patients with infectious diseases. The temporary isolated medical bed comprises an exhaust device, a machine body and an air supply device. The machine body is positioned at the top of a framework, and the machine body and the framework are in fixed connection. The exhaust device ispositioned in the middle of the machine body, and is connected with the machine body by means of embedding. An exhaust blower is arranged at the top of the exhaust device, and a purification bin is arranged below the exhaust blower. A high efficiency filter is positioned inside the purification bin, and is connected with the purification bin by means of embedding. According to the present invention, the temporary isolated medical bed has the advantages of simple and reasonable structure design, low noise, easy operation, good isolation effect, good filtration effect and high practicability, meets the need for temporary isolation and reduces transmission routes of diseases through the above structural improvements, so then the problems and shortcomings in current devices are effectively solved
Owner:TIANJIN KANGLI MEDICAL INSTR

Method for implementing dual-mode body fat scale, body fat scale and system

The invention provides a method for implementing a dual-mode body fat scale, a body fat scale and a system. The method comprises the following steps: the body fat scale is paired with a mobile terminal via Bluetooth; the mobile terminal comprises user information of one or more users; the body fat scale obtains network access information from the mobile terminal and establishes a network connection with an application server; the body fat scale acquires weighing data of the weighed user and sends the weighting data corresponding to the user information to the mobile terminal or the applicationserver according to the selected user information. The method for implementing a dual-mode body fat scale, the body fat scale and the system in the invention aim to simplify the operation and use process of the body fat scale, accelerate the data transmission speed, and improve the user experience.
Owner:PHICOMM (SHANGHAI) CO LTD

Porous mixing channel ultra-wideband sound absorption structure

The invention discloses a porous mixing channel ultra-wideband sound absorption structure which comprises a cover plate, side walls and a bottom plate; a plurality of via holes are formed in the coverplate; the cover plate, the side walls and the bottom plate are connected to form a sound absorption back cavity; transverse partition plates and longitudinal partition plates are arranged in the sound absorption back cavity, and the transverse partition plates and the longitudinal partition plates are arranged in an intersecting mode and used for dividing the sound absorption back cavity into aplurality of sub-cavities. A first partition plate and a second partition plate are arranged in each sub-cavity, the first partition plate and the second partition plate are both arranged on the corresponding transverse partition plate, a gap is formed between the first partition plate and the bottom plate, and the two ends of the second partition plate are connected with the first partition plateand the longitudinal partition plate correspondingly so as to divide the sub-cavity into a coiling channel and a straight channel. The structure is simple, the size is small, and low-frequency ultra-wideband sound absorption is achieved by connecting a plurality of coiled channels and straight channels in parallel.
Owner:SOUTHWEST UNIVERSITY

Intelligent control system for performing electrical equipment management through data and instruction

The invention discloses an intelligent control system for performing electrical equipment management through data and instruction, which relates to the technical field of electronic technology and communication. The intelligent control system comprises the components of terminal equipment, a network, a controller, a power line, an intelligent socket and electrical equipment. The terminal equipment is connected with the network. The network is connected with the controller. The controller is connected with the power line. The power line is connected with the intelligent socket. The intelligent socket is connected with the electrical equipment. By means of application software and an operating system, a plurality of kinds of data, instructions and signals are transmitted and processed through the controller, the power line and the intelligent socket in an intelligent manner, so that management and application for the operation mode of the electrical equipment are intelligent, thereby realizing clear structure, strict system, high control effect and wide application range. Furthermore, the data, the signal and the instructions are combined for controlling the power supply mode and the operation state of the electrical equipment through the controller, the power line and the intelligent socket. Complete functions and high control effect are realized.
Owner:NINGHAI QINGHUA ELECTRICAL

Active heat dissipation type motor with built-in electric brush damping structure

ActiveCN114050683ASimple structureGuaranteed shock absorption effectSupports/enclosures/casingsPhysicsElectromagnetic noise
The invention relates to the technical field of motors, in particular to an active heat dissipation type motor with a built-in electric brush damping structure. According to the invention, through the structural arrangement of a heat dissipation shell assembly and a damping assembly, airflow generated by a fan in a fan cavity enters an airflow channel through airflow holes, so that the airflow flowing outwards from the inside of the heat dissipation shell assembly is realized, the heat generated in the rotation process of the internal rotor and stator can be quickly taken out, self-heat dissipation is realized, and the service life of equipment is prolonged; and electromagnetic noise and friction noise generated by internal operation can be greatly reduced through the structural arrangement of the heat dissipation shell assembly, the operation working efficiency and performance of the electric brush are guaranteed in combination with the structural arrangement of the damping assembly, and noise caused by vibration is avoided, so that the noise reduction effect is greatly improved.
Owner:江苏优格曼航空科技有限公司

Traffic early-warning method, information transmitter, information receiver and traffic early-warning system

The invention relates to a traffic early-warning method, an information transmitter, an information receiver and a traffic early-warning system, belonging to the field of traffic safety. The traffic early-warning method, the information transmitter, the information receiver and the traffic early-warning system are automatically or manually or circularly triggered according to time period. Traffic early-warning information is processed and transmitted by technologies, i.e. the information processing, the radio receiving and transmitting, the directive antenna, the broadcast type communication, the relay retransmission, the alarm display and the like. The propagation path can be widened, the propagation mode can be improved, the propagation distance can be prolonged, and the propagation effectiveness and the information initiative can be improved. The sufficient information sharing among main bodies of the road traffic can be realized. The traffic safety early-warning where the abnormal situation does not form the actual danger, the early-warning distance reaches the furthest kilometer level, and the early-warning time reaches the longest minute level can be provided for vehicle drivers; and a traffic sign facility is used for transmitting the traffic sign information to a receiver on a vehicle through radio wave and transmitting to drivers, and preferably, the receiver transmits an active alarm signal corresponding to the received traffic sign information with the appointed type.
Owner:李庆忠

A preparation method and application of a carbon-wrapped porous cobaltous oxide nanomaterial with a shell-core structure

The invention provides a simple method for preparing a carbon-wrapped porous cobaltous oxide nanomaterial with a shell-core structure and its electrochemical performance as an anode of a lithium ion battery. The specific preparation steps include: preparing solid cobalt trioxide nano Cube: After the surface of the prepared nanocube is wrapped with PDA, the carbon-wrapped porous cobaltous oxide shell-core nanomaterial is obtained by medium-high temperature calcination, and finally the shell-core structure carbon-wrapped porous cobaltous oxide nanomaterial is formed by hydrochloric acid etching. The method of the present invention does not add any directing agent and surfactant to participate, the whole synthesis process has mild conditions, environmental protection, cheap raw materials, low requirements on equipment, and is convenient for industrial production. It has great advantages in the preparation of anode materials for lithium ion batteries. Great application prospects.
Owner:ZHENGZHOU UNIV

Nanometer oxide porous membrane electrode and preparing method and application thereof

The invention relates to a nano-oxide porous thin film electrode and preparation method thereof. The thin film electrode comprises two or more layers of oxide semiconductor thin films applied on a substrate, wherein irregular holes are formed in the thin films with a diameter ranging from 0.01 to 10 nm; the particle diameter of the oxide semiconductor material layer is from 5 to 500 nm; the thickness of the thin film is between 1 mum and 50 mum; and the void rate thereof is between 30% and 60% and a specific surface area thereof is between 40 m<2> / g and 130 m<2> / g. The preparation method of the thin film comprises following steps: (1) preparing an acid solution with a concentration of 0.1 to 5 wt%; (2) preparing a nano-colloid slurry of a semiconductor oxide; (3) applying the nano-colloid slurry of the semiconductor oxide onto the substrate; and (4) activating the thin film in an activator solution.The thin film electrode of the invention is prepared at a room temperature thus greatly saving energy resources which can be used as the photo-anode of flexible solar cell.
Owner:INST OF PHYSICS - CHINESE ACAD OF SCI

Fire-resistant, cold-resistant and sound-absorbing lightweight material for high-speed trains and preparation method

The invention discloses a fireproof cold-resistant noise reduction light material for a high speed train. The fireproof cold-resistant noise reduction light material comprises aluminum foil, a composite fiber layer and a polyester film, wherein the aluminum foil and the polyester film are respectively arranged on two sides of the composite fiber layer in an adhesion manner; the composite fiber layer consists of the following raw materials in parts by weight: 10-20 parts of polyester fiber and 80-90 parts of polyacrylonitrile preoxidized fiber; the composite fiber layer consists of a plurality layers of composite fiber nets which are folded alternatively; single net surfaces of folded composite fiber nets of each layer have same angles; an angle of 135 degrees is formed between single net surfaces of adjacent layers of the composite fiber nets. The fireproof cold-resistant noise reduction light material is good in fireproof effect, the composite fiber layer is produced in a three-dimensional inclined net paving manner, the speed of one-direction heat conduction is increased, heat convection conduction can be effectively prevented, a good cold resistance effect and a noise reduction effect can be achieved, the sonic propagation way and the sonic propagation time can be effectively prolonged, and the acoustic energy can be greatly attenuated in the process.
Owner:山东泰鹏新材料有限公司

A preparation method of metalloporphyrin nanotube-cadmium sulfide composite photosensitive sensing material modified by graphene quantum dots

The invention discloses a preparation method of a graphene quantum dot modified metalloporphyrin nanotube-cadmium sulfide composite photosensitive sensing material. The preparation method comprises the following steps: firstly preparing tetraphenylporphyrin, then preparing water soluble manganese tetrasulfophenyl porphyrin by taking fuming sulfuric acid as a sulfur source, and growing manganese tetrasulfophenyl porphyrin nanotubes on a porous alpha-alumina substrate; then by taking thioacetamide and cadmium acetate as sources, growing cadmium sulfide nanosheet blades on stems of the manganesetetrasulfophenyl porphyrin nanotubes by utilizing a hydrothermal method, and dropwise adding polydimethylsiloxane solution dissolved with graphene quantum dots on the surface of a composite material,and reserving a manganese tetrasulfophenyl porphyrin nanotube / cadmium sulfide composite material after the porous alpha-alumina substrate is removed, so that protective effect of a support material istaken, and then stability of the sensing material and electron conductivity are improved.
Owner:ZHEJIANG SCI-TECH UNIV

A soundproof window based on magnetic buffer ventilation

The invention discloses a soundproof window based on magnetic buffering and ventilation, which belongs to the technical field of sound insulation. It is a soundproofing window based on magnetic buffering and ventilation. Clamped on the T-shaped locking rod at any position, with the help of the mutual repulsion between the magnetic strip and the ring magnet block, the movable liquid bag is driven to move to the right until it contacts with the dislocation pad, so that the noise is transmitted from the movable liquid bag and the dislocation pad pass between the gaps to absorb the noise, and under the action of mutual attraction between the movable liquid bag and the magnet sheet, the capillary thorns adsorbed on the outside of the outer rubber layer stand up, thereby absorbing the noise, and the capillary thorns are set as Similar to the barbs on the tongue of an animal, it can filter the dust and as the dust accumulates, it can be filled in the built-in sound storage tank to simulate a multi-void structure, thereby further improving the sound insulation effect.
Owner:NANTONG HAIYING WOOD IND

Method and apparatus for interaction in live streaming

The invention discloses a method and apparatus for interaction in live streaming. The method includes the following steps: issuing a live streaming interaction command which includes object problem information, standard answer information corresponding to the problem information being saved in a server; receiving a first interaction request uploaded by a first user based on the live streaming interaction command; receiving a second interaction request uploaded by a second user based on the live streaming interaction command; if first answer information conforms to the standard answer information, based on a first weight and a preset proportion, allocating a third weight to the first user; and if the second answer information conforms to the standard answer information, based on a second weight and a preset proportion, allocating a fourth weight to a second user. The method increases interaction methods for transmitting messages among users by conducting interaction requests in question and answer manner, increases routes for information transmission and increases the efficiency of information transmission.
Owner:TVMINING BEIJING MEDIA TECH

Audio/video interaction method and system

The invention relates to an audio / video interaction method and an audio / video interaction system. The method comprises the following steps that: a person waiting reply transmits a theme waiting reply to a reply platform; a respondent acquires the theme waiting reply from the reply platform, selects the corresponding reply audio / video and transmits the corresponding reply audio / video to the reply platform; the reply platform transmits a prompt message corresponding to the reply audio / video to the person waiting reply; and the person waiting reply acquires the reply audio / video from the reply platform according to the prompt message. According to the audio / video interaction method and the audio / video interaction system, reply interaction can be realized in an audio / video manner, an intuitive and convenient communicative manner can be provided for users, user experience is effectively improved, interactive relationship among the users is consolidated and improved well, the audio / video transmission route is increased effectively, and considerable sales revenue is brought to a service provider.
Owner:SHENGLE INFORMATION TECH SHANGHAI

Novel sound insulation material as well as preparation method and application thereof

A novel sound insulation material comprises a main coating and a sealing layer, and each of main coating and the sealing layer comprises powder and liquid. The mass ratio of powder to liquid in the main coating is (2-6): 1; and the mass ratio of the powder material to the liquid material in the sealing layer is 1: (2-5). The main coating prepared by the invention is a sound wave absorbing coating and has very strong sound wave damping capacity; and the sealing layer plays a role in protecting the main coating, can prevent cement mortar on the sealing layer from leaking and entering the main coating to affect the sound insulation performance of the system, and also has a sound wave damping effect. The main coating and the sealing layer prepared from the sound insulation material have multiple porous structures and are arranged in the propagation path of sound waves, and the purpose of sound insulation is achieved by absorbing the energy of the sound waves. Compared with other sound insulation materials in the market, the material provided by the invention has better sound insulation performance under the condition of the same coating thickness. The invention also relates to a preparation method and application of the novel sound insulation material.
Owner:NIPPON PAINT CHINA +1

Method for realizing widget sharing by utilizing multimedia messaging service and hand-held electronic device

A hand-held electronic device is provided with platform software operating widget and comprises a transmitting unit, wherein the transmitting unit comprises a multimedia messaging service (MMS) creating module, an inserting module, a setting module and a transmitting module; the MMS creating module is used for creating a MMS on the hand-held electronic device; the inserting module is used for inserting the widget into the MMS as MMS attachment; the setting module is used for setting the field value of the MMS type as widget; and the transmitting module is used for transmitting the MMS according to the telephone number preset by the user. The invention expands the widget transmission mode and realizes widget sharing.
Owner:KORTIDE LTD

Audio processing method and device, terminal and storage medium

The embodiment of the invention relates to the field of playing, and discloses an audio processing method and device, a terminal and a storage medium. The audio processing method comprises the steps of obtaining a de-role audio track of a first audio in a first mode, wherein the first audio is an audio in an original file played online; obtaining user-defined information of a user, wherein the custom information of the user comprises text information or voice information; and according to user-defined information and the de-role audio track of the user, obtaining a synthetic audio used for replacing the first audio. In the embodiment of the invention, the user instruction is obtained in the first mode, the first audio needing to be subjected to secondary creation is determined, and the synthesized audio is obtained in combination with the user-defined input. A user is not required to download an original file where the first audio is located or the first audio, secondary creation can be completed only by selecting and providing user-defined input during playing, the execution process is convenient and rapid, and the user participation degree is greatly improved.
Owner:MIGU CO LTD +1

Image sensor and preparation method thereof

The invention relates to the technical field of semiconductors, and discloses an image sensor and a preparation method thereof. In the image sensor, a plurality of columnar through holes are distributed in a dielectric layer above a photosensitive device of each photosensitive area to form a light guide area which is used for guiding light into a photosensitive device, and incident light can be bound in the light guide area to prevent light rays from being shot into adjacent pixel photosensitive areas during propagation to cause light crosstalk, so that the propagation route of the incident light in the light guide area is improved; and the transmission characteristics of the light guide area can be adjusted by controlling the parameters such as the pore size, the dielectric material, the distribution density and the like of the through holes in the light guide area, and controlling the arrangement mode of the through holes, so that an effect of improving the light intensity of the light shot into the light guide area is achieved. Moreover, based on the conventional image sensor circuit, a plurality of through holes are formed in the dielectric layer above the photosensitive area by using an etching and mat accumulation process, so that the image sensor is easy and convenient to operate and easy for mass production.
Owner:SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI

A paper honeycomb composite panel with expandable strong bonding and high sound absorption and its manufacturing method

The invention discloses an expandable high-bonding and high-sound-absorption paper honeycomb composite board and a manufacturing method thereof. The composite board is sequentially compounded by bottom fabric, an adhesive film A, a prepreg, a glass fiber reinforcement polypropylene fiber composite material GMT, an adhesive film B, a honeycomb core material, an adhesive film B, a glass fiber reinforcement polypropylene fiber composite material GMT, a prepreg and an adhesive film C from bottom to top. According to the expandable high-bonding and high-sound-absorption paper honeycomb composite board and the manufacturing method thereof, a rivet type bonding structure is arranged between the adhesive film B and the honeycomb core material, the peel strength between the upper layer and the middle layer and between the middle layer and the lower layer of the product can be enhanced, the overall rigidity is improved, and the problem that an original patented product is not plump in forming during forming, and thus glass fibers can be exposed easily is solved through the layer of the additionally-arranged GMT.
Owner:浙江华江科技股份有限公司

Method for improving LCD backlight brightness

PendingCN111624818AChange the transmission routeChange utilizationNon-linear opticsOptical elementsRefractive indexEngineering
The invention discloses a method for improving LCD backlight brightness. The method comprises the steps: designing a microstructure on the lower surface of an optical film layer, performing fitting, simulation and optimization on light through optical simulation software, then with the emergent brightness as a target point, optimizing the surface type of a microstructure and the refractive index of the microstructure, thus changing the propagation path and the utilization rate of large-angle light incidence. According to the method for improving the LCD backlight brightness, the axial brightness can be effectively improved, the display signal-to-noise ratio is enhanced, and the purpose of enhancing the display visibility of a liquid crystal screen is achieved; and meanwhile, the backlightpower consumption can be reduced, and the user experience and the product reliability in a special environment are improved.
Owner:中航华东光电有限公司

A Porous Mixed Channel Ultra-Broadband Sound Absorbing Structure

The invention discloses an ultra-wideband sound absorption structure of a porous mixed channel, which comprises a cover plate, a side wall and a bottom plate. The acoustic back cavity is provided with a transverse partition plate and a longitudinal partition plate, and the transverse partition plate and the longitudinal partition plate are intersected to divide the sound absorption back cavity into a plurality of sub-cavities, and a first partition plate and a second partition plate are arranged in the sub-cavities. Partition plate, the first partition plate and the second partition plate are both arranged on the transverse partition plate, and the first partition plate and the bottom plate are provided with a gap, and the two ends of the second partition plate are respectively connected to the first partition plate It is connected with the longitudinal partition to divide the sub-cavities into coiled channels and straight channels. The structure is simple, the volume is small, and a plurality of coiled channels and straight channels are connected in parallel to realize low-frequency ultra-wideband sound absorption.
Owner:SOUTHWEST UNIV
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