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72results about How to "Structural advantages" patented technology

Cell separation microchip based on silicon structure on insulators

The invention provides a cell separation microchip based on a silicon structure on an insulator, which consists of two mutually combined layers, wherein, the first layer adopts a path layer, and the second layer adopts a cover plate layer. A micro-structure is formed on the path layer through engraving grooves on an SOI silicon chip, the path layer is provided with a micro channel, a liquid storage tank, an optical fiber groove and a microelectrode couple structure, and the liquid storage tank on the path layer is used for sieving the former and the later sample liquids and storing sheath flow liquid; the micro channel is unimpeded and used for sample (cell suspension or solution) flow; optical fibers provide an optical detecting circuit; the microelectrode couple is used for realizing cell sieving. A sample inlet and a sample outlet on the cover plate layer are connected with an external pipe. The information of the cell volume can be obtained by the optical fibers for distinguishingwhether the cell is a fused cell or not, alternating current photo-electric signals are applied on the micro electrode couple correspondingly to deflect the cells, so the cell separation is realized. The chip utilizes an electric field to implement the non-contact sieving and separating operations to the biological live cells, so the survival rate of live cells is enhanced, the structure is simple, the process is convenient, and the cost is low.
Owner:CHONGQING UNIV

Lithium-ion flexible packaged battery pack structure

The invention discloses a lithium-ion flexible packaged battery pack structure which comprises individual lithium ion batteries, plastic clamping plates, heat radiating plates as well as current collection copper poles, current collection covers, an upper cover and a lower cover plate, wherein the current collection copper poles are arranged on the outer sides of two opposite side surfaces respectively; the current collection covers cover the current collection copper poles; the upper cover plate and the lower cover plate are arranged at the top end and the bottom end respectively, and a plurality of repetition units which are formed by the individual lithium ion batteries, the plastic clamping plates and the heat radiating plates are arranged between the upper cover plate and the lower cover plate; the side edges, corresponding to the current collection copper poles, of the individual lithium ion batteries are respectively provided with positive tabs and negative tabs, which are symmetric to each other; the plastic clamping plates and the individual lithium ion batteries are arranged at intervals sequentially, a galvanized copper block is arranged in each of two side surfaces of a frame of each plastic clamping plate, the inner sides of the galvanized copper blocks are connected with the tabs, the outer sides of the galvanized copper blocks are connected with the current collection copper poles through screws, and the heat radiating plates are respectively clamped between each individual lithium ion battery and each plastic clamping plate. The lithium-ion flexible packaged battery pack structure is high in energy density, strong in heat radiation capacity, high in safety, good in reliability and convenient to install and dismount.
Owner:SHANGHAI INST OF SPACE POWER SOURCES

Zeolite molecular sieve material which has high-efficiency CO2 capturing function and preparation method thereof

The invention discloses a zeolite molecular sieve material which has a high-efficiency CO2 capturing function. Zeolite molecular sieves are used as carrier of the material loaded with metal positive ions. The metal positive ions exchange with positive ions on the surface of the zeolite molecular sieves by the ion exchange method to be introduced into tunnels on the surface of the zeolite molecular sieves, but the internal tunnels of the zeolite molecular sieves maintain the original state. According to the invention, an organic reagent is adsorbed in the internal tunnels of the zeolite molecular sieves in advance; then, under the protection of the organic reagent, the positive ions on the surface of the zeolite molecular sieves is exchanged by metal positive ions by the ion exchange method, but the internal positive ions do not participate in the ion exchange reaction; and by vacuum and high-temperature activation, the organic reagent is removed from the internal tunnels of the zeolite molecular sieves. In comparison with the prior art, the functional zeolite sieves material provided by the invention is used to enhance the selective adsorption capability of CO2 and simultaneously raise the adsorption quantity of CO2, and has the high-efficiency CO2 capturing and separating function.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI

Microelectrode array chip for cell electrofusion

The invention provides a microelectrode array chip which is used to fuse cells electrically and is composed of a microelectrode array module, a fusion pool and a plate electrode module. The microelectrode array module is composed of a hard insulated basal layer and an electrode array layer, the electrode array layer introduces electrical signals through a metal wire, the fusion pool and the plate electrode module are composed of a base and the fusion pool on the base, the bottom of the fusion pool is also used as a plate electrode, the size of the electrode array layer on the microelectrode array module is smaller than the size of the fusion pool and the fusion pool on the plate electrode module, the microelectrode array module is covered on the fusion pool and the plate electrode module, the electrode array layer is dipped in sample solution of the fusion pool, and when external electric stimulation signals are implied, namely, an uneven gradient field with high strength is formed in tiny space between a microelectrode array and a plate electrode in the fusion pool, the process for electrically fusing the cells is realized. The chip can increase the efficiency for fusing the cells and the corrosion resistance of the chip, the biocompatibility of the microelectrode array chip is improved, and the safety and the cell vitality for fusing cells are guaranteed.
Owner:CHONGQING UNIV

LED (Light-Emitting Diode) daylight lamp

The invention provides an LED (Light-Emitting Diode) daylight lamp comprising two lamp holder structures, an aluminum heat dissipation shell, a transparent piece and LED lamp strips, wherein each lamp holder structure comprises a front end cover, a rear end cover, a rotating shaft and a spacing piece; the front end cover comprises an outer barrel and an inner barrel which are arranged at an interval, and an annular accommodating groove is formed between the inner barrel and the outer barrel; the outer wall of the outer barrel is provided with a sliding chute and a slot; the slot penetrates through the bottom of the sliding chute and is communicated with the accommodating groove; the inner wall of the outer barrel is provided with a matching part; the rear end cover is detachably connected with the front end cover, and the front end cover can rotate relative to the rear end cover; the rotating shaft is arranged in the rear end cover and fixedly connected with the rear end cover; the rotating shaft is of an annular structure; the outer periphery of the rotating shaft is provided with a spacing slot and a positioning part; the positioning part is matched with the matching part, so as to position the front end cover to a position with a preset angle; the spacing piece comprises a base plate and a spacing boss arranged on the bottom surface of the base plate; and the spacing boss passes through the slot and props against the interior of the spacing slot. The LED daylight lamp is rotatable and adjustable, can perform angle positioning, and is more convenient in installation and maintenance.
Owner:SHENZHEN TOP TECH

Partially-depleted silicon-on-insulator device structure

The invention provides a partially-depleted silicon-on-insulator device structure. The partially-depleted silicon-on-insulator device structure comprises a semiconductor substrate, a device active area, a grid and a body contact active area. The semiconductor substrate comprises a bottom layer substrate, an insulation area buried layer and an upper layer substrate, wherein the bottom layer substrate, the insulation area buried layer and the upper layer substrate are sequentially stacked from bottom to top. The device active area is placed in the upper layer substrate and comprises a body region, a source region and a drain region. The grid stretches cross the device active area, the body region is placed below the grid, and the source region and the drain region are placed on the two sides of the grid respectively. The body contact active area is placed in the portion, on one side of the device active area in the width direction, of the upper layer substrate, the body contact active area is isolated from the drain region or the source region through a shallow insulation area, the shallow insulation area does not make contact with the insulation area buried layer, and the grid is electrically connected with the body contact active area. According to the partially-depleted silicon-on-insulator device structure, the evenness of starting of a partially-depleted silicon-on-insulator dynamic threshold transistor can be improved.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP

Vertically-overlapped back grid type Si-NWFET (Nano Wire Field Effect Transistor) manufacturing method based on SOI (Silicon On Insulator)

The invention provides a preparation method of a vertically-overlapped back grid type silicon nano wire field effect transistor based on an SOI (Silicon On Insulator). The preparation method comprises the following steps of: alternatively depositing a silicon layer and a germanium-silicon layer on the SOI to form a fin-shaped active region, and forming a silicon nano wire in the fin-shaped active region; forming an isolating medium layer between source drain regions; forming a grid electrode oxidization layer on the surface of the silicon nano wire; and finally, forming a grid electrode on an SOI substrate in the fin-shaped active region. Due to the presence of an insulator layer in the SOI, the isolation effect between the grid electrode and the SOI substrate is effectively increased; a process for forming the grid electrode oxidization layer on the silicon nano wire is independently carried out so that the conventional grid electrode oxidization layer is adopted; and the grid electrode is formed after ions are injected into the source drain regions, namely a back grid electrode process is adopted, so that the preparation method is good for controlling an outline of the grid electrode and an electrical property of a device. Furthermore, a silicon nano wire field effect transistor structure is designed by a vertically-overlapped back grid type silicon nano wire structure; and the quantity of nano wires is increased and the current driving capability of the device can be increased.
Owner:SHANGHAI HUALI MICROELECTRONICS CORP

Three-dimensional array type back grid type Si-NWFET (Nano Wire Field Effect Transistor) manufacturing method based on SOI (Silicon On Insulator)

The invention provides a three-dimensional array type back grid type Si-NWFET (Nano Wire Field Effect Transistor) manufacturing method based on an SOI (Silicon On Insulator). The manufacturing method comprises the following steps of: alternatively depositing a silicon layer and a germanium-silicon layer on the SOI to form a fin-shaped active region, and forming a silicon nano wire in the fin-shaped active region, wherein the silicon nano wire is a three-dimensional array type; then, forming an isolating medium layer between source drain regions; forming a grid electrode oxidization layer on the surface of the silicon nano wire; and finally, forming a grid electrode on an SOI substrate in the fin-shaped active region. Due to the presence of an insulator layer in the SOI, the isolation effect between the grid electrode and the SOI substrate is effectively increased; a process for forming the grid electrode oxidization layer on the silicon nano wire is independently carried out so that the conventional grid electrode oxidization layer is adopted; and the grid electrode is formed after ions are injected into the source drain regions, namely a back grid electrode process is adopted, so that the preparation method is good for controlling an outline of the grid electrode and an electrical property of a device. Furthermore, a silicon nano wire field effect transistor structure is designed by a three-dimensional array type back grid type silicon nano wire structure; and the quantity of nano wires is increased and the current driving capability of the device can be increased.
Owner:SHANGHAI HUALI MICROELECTRONICS CORP

LED street lamp structure

The invention provides an LED street lamp structure. The LED street lamp structure comprises a lamp post, an annular positioning seat is arranged at the lower end of the lamp post, the lower end of the lamp post is sleeved with an annular seat body, the section of the seat body is inverted-L-shaped, and the lower end of the seat body is fixedly connected with the positioning seat; an annular air cavity is formed between the base body and the lamp post, a rotating cylinder is arranged in the annular air cavity, the lamp post is sleeved with the rotating cylinder, and the rotating cylinder is rotationally connected with the positioning base; a sealing ring is formed on the inner side wall of the base body, the rotating cylinder is sleeved with the sealing ring, the sealing ring divides the annular air cavity into an upper cavity and a lower cavity which are not communicated with each other, annular fan blades are arranged in the upper cavity, the annular fan blades are fixedly connectedwith the rotating cylinder, and a motor is fixed in the lower cavity and drives the rotating cylinder to rotate; an approximately L-shaped drainage pipe is further arranged in the lower cavity, the drainage pipe is composed of a vertically-arranged water inlet part and an obliquely-upwards-arranged water outlet part, the outer end of the water outlet part extends out of the base body, a drainage hole right opposite to the water inlet part is formed in the sealing ring in a penetrating mode, and the upper end of the water inlet part is inserted into the drainage hole. The LED street lamp structure is good in experience.
Owner:廖建波

Comb-shaped micro-sensor for measuring strong magnetic field, and preparation method for comb-shaped micro-sensor

The invention relates to a comb-shaped micro-sensor for measuring a strong magnetic field. The micro-sensor comprises a substrate, a sensor body and a cover, wherein the substrate, the sensor body and the cover are connected sequentially. The sensor body comprises three parts: a main body, a pair of measurement electrode bodies and a pair of drive electrode bodies. The pair of measurement electrode bodies are located at two sides of the main body in the X direction, and the pair of drive electrode bodies are located at two sides of the main body in the Y direction, and are respectively symmetric with the main body to form a tooth-shaped staggered cooperative structure. Finally, the substrate, the sensor body and the cover form the comb-shaped micro-sensor with the vacuum interior through bonding. The micro-sensor achieves the measurement of the size of the magnetic field of a Tokamak in a vertical direction z in a strong magnetism environment. A metal coil which lets in an AC signal drives the main body to tend to move in a force-bearing direction under the action of a Lorentz force. The main body is enabled to carry out the mechanical vibration at one frequency under the recombination action of an electrostatic force generated by comb teeth on the drive electrode bodies, thereby causing the capacitance changes, and achieving the calculation of the size of the measured magnetic field.
Owner:HEFEI UNIV OF TECH

Speed reducer structure

The invention provides a speed reducer structure, which belongs to the technical field of machinery, and solves the problems that an existing speed reducer is poor in transmission precision and is short in service life. The speed reducer structure comprises a housing, a flange, an input shaft, a transmission shaft and an output shaft, wherein the two ends of the transmission shaft are separately connected in the housing through a bearing I and a bearing II; the two ends of the output shaft are separately connected in the housing through a bearing III and a bearing IV; a coaming is arranged inthe housing, and a mounting cavity is enclosed in the housing; an opening is formed in the end surface of the housing, and the edge of the opening is detachably connected with an end cover; both the bearing I and the bearing III are arranged on the end cover; both the transmission shaft and the output shaft are positioned in the mounting cavity; a hypoid gear is arranged on the input shaft; a bevel gear which is engaged with the hypoid gear is arranged on the transmission shaft; and the dimension of the bearing II is greater than that of the bearing I. The bearing II can bear greater axial bearing force relative to the bearing I, so that stable and consistent transmission efficiency can be kept, and therefore, the speed reducer structure has relatively high transmission precision, and theservice life of the speed reducer structure is prolonged.
Owner:浙江通宇变速机械股份有限公司

Big presser foot component structure of placket machine

The invention provides a big presser foot component structure of a placket machine, belongs to the technical field of clothing manufacturing equipment and solves the technical problem that big presserfeet on existing placket machines are poor in cloth pressing effect and inconvenient for interval adjusting. The big presser foot component structure comprises a left big presser foot arm and a rightbig presser foot arm which are arranged side by side at an interval, the end of the left big presser foot arm is connected with a left small presser foot arm, the end of the right big presser foot arm is connected with a right small presser foot arm, a left presser foot is connected on the left small presser foot arm, a right presser foot is connected on the right small presser foot arm, and a driving source enabling the left presser foot and the right presser foot to be in relative reciprocating motion is arranged between the left big presser foot arm and the left small presser foot arm or/and between the right big presser foot arm and the right small presser foot arm. The big presser foot component structure is simple in structure, stable and reliable, relative motion of the left presser foot and the right presser foot can be realized through a driving cylinder, and flattening of cloth and adjusting of a distance between the left presser foot and the right presser foot are realized.
Owner:BULLMER ELECTROMECHANICAL TECH

Flashlight and handle structure thereof

Disclosed are a flashlight and a handle structure thereof. The handle structure is used for limiting a lamp holder unit and a battery cover unit on a barrel. The lamp holder unit comprises a transparent cover provided with a limit groove. The battery cover unit comprises a tail cover. The handle structure comprises a handle, a lamp holder limiting unit and a lamp cover limiting unit. The lamp holder limiting unit arranged at one end of the handle comprises a first limit cover, a first limit pin, and a first return elastic member; the first limit pin penetrates the first limit cover and the barrel; the first return elastic member sleeves a first shank and abuts between a first retaining part of the first shank and the first limit cover. The battery cover limiting unit arranged at the other end of the handle comprises a second limit cover, a limit plate, a second limit pin and a second return elastic member; the limit plate is rotatably connected with the handle and abutted to the bottom of the tail cover; the limit plate is provided with a limit part; the second limit pin penetrates the second limit cover and the handle; the second return elastic member sleeves a second shank. The handle structure has the functions of lifting and preventing the battery cover unit and the lamp holder unit from dropping off.
Owner:SHENZHEN OCEANS KING LIGHTING ENG CO LTD +1

Flexible foot structure of biped robot

ActiveCN110920768AStructural advantagesReduce shock and stabilize gaitVehiclesClassical mechanicsEngineering
The invention provides a flexible foot structure of a biped robot. The device at least comprises a substrate and a supporting structure arranged on the lower side of the substrate, the supporting structure comprises two connecting rods and a telescopic elastic assembly, the connecting rods are hinged to the substrate, each connecting rod comprises a first supporting arm and a second supporting arm, the first supporting arms are fixedly connected with the second supporting arms, and the included angles between the first supporting arms and the second supporting arms are smaller than 180 degrees. The elastic assembly is hinged to the second supporting arms on the two sides. When the substrate is stressed to move downwards, the connecting rod is stressed to rotate, the second supporting arm is stressed to rotate, the second supporting arm drives the elastic assembly to be compressed or stretched in the rotating process, the elastic assembly provides buffering for rotation of the connecting rod in the stretching or compressing process, and the expansion buffering effect of the foot arch of the human foot is simulated. The robot has the function of simulating the foot arch of the humanfoot, the stress state of the human in the actual walking process is better met, and meanwhile the robot has higher stability in the walking simulating process.
Owner:ZHEJIANG UNIV

Waveguide magic T structure

The invention relates to the radio frequency microwave field, in particular to a waveguide magic T structure. The waveguide magic T structure comprises a waveguide cavity; a metal separator which divides a part of the waveguide cavity into upper and lower reduced waveguides with a metal groove formed therein; a microstrip circuit cavity located on one side of the waveguide cavity and provided withwaveguide sidewall openings at positions adapted to the waveguide cavity; a dielectric substrate of a microstrip circuit parallel to the metal separator, a microstrip line being arranged on the frontside, and a groove line being arranged on the reverse side and connected with the metal groove; a load resistor connected to microstrip line. The waveguide magic T structure of the invention improvesthe isolation of the input port and the standing wave of the port of a synthesizer compared with the waveguide T-joint, facilitates the connection between modules and the system integration, and reduces the instability of the system caused by the unbalance between the paths or even the damage of one path during the integration of the multiple paths of the system. In addition, compared with the conventional waveguide magic T, the waveguide magic T structure realizes miniaturization by adopting a folded waveguide.
Owner:LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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