32results about How to "Meet different application occasions" patented technology

The invention discloses a large-power LED lamp heat radiator with fins having functions of heat pipes, which comprises a metallic heat radiating body and at least one metallic heat radiating fin, wherein the metallic heat radiating body and the metallic heat radiating fin are both in a hollow structure; a first hollow cavity in the interior of the metallic heat radiating body is communicated with a second hollow cavity in the interior of the metallic heat radiating fin to form an intercommunicated closed type inner cavity body; a heat pipe fluid absorbing core is arranged on the inner wall of the closed type inner cavity body, and operating fluid is filled in the heat pipe fluid absorbing core; the heat radiating body and the metallic heat radiating fin correspondingly form an integrated heat pipe for heat exchange; the inner wall of the heat radiating body and the inner wall of the metallic heat radiating fin form a pipe shell of the integrated heat pipe; and the heat radiating body and the metallic heat radiating fin have functions of heat pipes. The invention has the advantages of simple and reasonable structure, small volume, convenient processing, manufacture, installation and arrangement, large heat radiating area, high heat conduction coefficient and good heat radiating performance, and can effectively solve the heat radiating problem of large-power LED lamps.

The invention discloses a device for electronic device transfer. The device comprises an upper electrode layer, a lower electrode layer, a viscous layer and an electrical active layer, wherein the upper electrode layer and the lower electrode layer are arranged oppositely in a spaced mode, an electric field can be generated between the upper electrode layer and the lower electrode layer after electrification, the viscous layer is fixedly connected to the lower surface of the lower electrode layer, the electrical active layer is arranged between the upper electrode layer and the lower electrode layer and can be squeezed to deform longitudinally or horizontally under the action of the electric field generated between the two electrode layers after electrification, the deformation of the electrical active layer drives the electrode layers and the viscous layer to deform so that shearing force and / or concave-convex ejecting force can be generated, and then the electrode layers and the viscous layer are debonded to be placed on a receptor substrate. The invention further discloses a method for electronic device transfer by means of the device and the application of the device. The method and device can be used for active placing of electronic devices. The device is simple in structure, quick and reliable in use, easy to control and the like. The method and device can be used for transfer of ordinary ultrathin and flexible electronic devices in various specifications as well as transfer of large-area array micro-electronic devices / structures.

The invention aims at providing an Mg-RE-series magnesium alloy and a preparing method and application thereof. The magnesium alloy comprises Mg and RE, wherein RE is at least one of Tb, Dy, Er, Tm, Yb, Lu and Eu. By mass percent, the mass percent of the RE in the magnesium alloy is 0-15.0%. The Mg-RE-series magnesium alloy has excellent comprehensive mechanical performance, degradability and cytocompatibility and can be used for preparing degradable medical implanted bodies.

The invention relates to a nanometer boehmite and a preparation method thereof. The nanometer boehmite is characterized by comprising the following components by weight: 50-150 parts of pseudo-boehmite, 1-10 parts of inorganic acid or inorganic base, 0.5-3 parts of additive and 400-750 parts of deionized water. The preparation method comprises the following steps: (1) dispersing pseudo-boehmite powder to the deionized water, adding the inorganic acid or the inorganic base for uniformly stirring; (2) adding the special additive and uniformly stirring to obtain feed liquid; (3) adding the feed liquid to a high-pressure reaction kettle for hydrothermal reaction; and (4) discharging after cooling, and spraying fog to obtain the nanometer boehmite after washing. By utilizing the preparation method, the nanometer boehmite with different morphologies can be prepared by taking the pseudo-boehmite as a starting material, the use of a large number of strong acid and alkali usage is avoided, a potential safety hazard is eliminated, the washing water consumption is reduced, the cost is saved, and the preparation method is conducive to energy conversation and environmental protection and can be used in different application occasions.

An intelligent buck-boost charging / discharging circuit provided by the present invention comprises a battery module, a power inductor, a charging / discharging control port, a free input / output port and a control unit, the free input / output port is equipped with a current detection circuit, and a first voltage detection circuit is connected between the charging / discharging control port and the free input / output port. A second voltage detection circuit is connected between the anode and the cathode of the battery module, and the control unit controls the on-off of the first, second, third and fourth switches according to the information transmitted by the first voltage detection circuit, the second voltage detection circuit and the current detection circuit. The beneficial effects of the present invention are that the circuit can realize the functions, such as the boost charging, the buck charging, the boost discharging, the buck discharging, the bypass, etc.; a portable power supply applying the circuit can charge itself rapidly; various and different mobile terminals can be charged rapidly; the people are convenient to use.

The invention provides water-reused aerogel for solar sewage purification and a production method thereof. The production method of the water-reused aerogel for solar sewage purification comprises thesteps of (1) adding graphite powder, NaNO3, concentrated sulfuric acid, KMnO4, deionized water and H2O2 into a container, and adopting a freeze drying method for obtaining graphene oxide powder; (2)mixing the graphene oxide powder and graphite powder, and heating a mixture in a microwave oven to obtain reduced graphene oxide; (3) adding waste paper scraps into a mixed solution of water, NaOH andthiourea to obtain cellulose; and (4) adding the cellulose and alcohol into a reduced graphene oxide dispersion solution, and conducting freeze drying on a mixture after conducting ultrasonic treatment and liquid nitrogen refrigeration on the mixture to obtain the graphene / cellulose aerogel. The graphene / cellulose aerogel produced through the method has excellent hydrophilic performance, ultra-low density, ultra-high porosity and ultra-low heat conductivity, size and thickness of the aerogel are controllable, and the requirements of different application occasions of the aerogel can be met.

The invention discloses a force-value-adjustable small-included-angle ratchet wheel positioning device with V-shaped positioning grooves. The force-value-adjustable small-included-angle ratchet wheel positioning device comprises a ratchet wheel and positioning components. The V-shaped positioning grooves are distributed in the circumference of the ratchet wheel alternately. A positioning pin, a spring and a positioning nut are arranged on each positioning component sequentially. Each positioning pin contacts with the circumferential surface of the ratchet wheel under the pressure of the corresponding spring. The two positioning pins are sequentially positioned in the different V-shaped positioning grooves formed in the circumference of the ratchet wheel. The elastic deformation degree of each spring is adjusted through rotation of the corresponding positioning nut. The force-value-adjustable small-included-angle ratchet wheel positioning device has the advantages that accurate positioning of small included angles on the circumference of the ratchet wheel is achieved by the aid of the V-shaped positioning grooves, and positioning interference is relieved; working load of the springs is changed through adjustment of the positioning nuts on the positioning components, the acting force between the positioning pins and the ratchet wheel is further adjusted, and accordingly, accurate adjustment of operating force values is achieved; when the positioning pins apply positioning acting force or damping acting force to the ratchet wheel, the acting positions of the positioning pins and the ratchet wheel are different, so that abrasion of the positioning pins and the ratchet wheel are reduced, and positioning functions are not affected by abrasion of arcs at the tips of the positioning pins.

The invention discloses a high-voltage switch cabinet electric chassis truck DC motor rotation-clogging protection method, which comprises the following specific steps: 1) collecting original operation data of a DC motor as rotation-clogging characteristic quantity of the DC motor; 2) carrying out noise reduction analysis processing on the current data collected in the step 1); 3) determining a protection threshold set range; and 4) setting an actual protection value according to the threshold set range obtained in the step 3) and carrying out rotation-clogging protection. The method effectively eliminates the interference factors in the operation process and can quickly extract the rotation-clogging characteristic quantity, and realizes dynamic adjustment of the rotation-clogging protection threshold.

The invention relates to a high-speed and high-precision magnetic induction absolute value encoder for a machine tool spindle and a measurement gear of the absolute value encoder. The measurement gear comprises an inner-circle major magnetic track and an outer-circle vernier magnetic track which are arranged in a mutual staggered manner, wherein the inner-circle major magnetic track contains Z teeth, and the outer-circle vernier magnetic track contains (Z-1) teeth; the absolute value encoder comprises the measurement gear and a magnetic induction reading head; a magnetic induction element, a signal conditioning circuit and an FPGA interpolation subdivision circuit are arranged in the magnetic induction reading head; Z and (Z-1) sine and cosine orthogonal differential signals are produced by the magnetic induction element through non-contact scanning of the measurement gear, the signals processed by the signal conditioning circuit are subjected to real-time error correction and compensation by the FPGA interpolation subdivision circuit, so that relative positional values of the number of angle lines are generated respectively for Z and (Z-1) tracks, and the absolute value of the current angle is calculated. The high-speed and high-precision magnetic induction absolute value encoder is simple in structure, high in precision, easy to mount and high in anti-shock capacity, positioning precision and repeated positioning precision of the machine tool spindle are improved remarkably, and the overall measurement precision and machining efficiency of a numerical control machine tool are improved.

The invention discloses an Mg-Si-Ca-Zn series magnesium alloy and preparation method and application thereof. The magnesium alloy comprises Mg-Si-Ca-Zn, the mass percentage of Si in the magnesium alloy is 0-1.0% without being 0, the mass percentage of Ca is 0-1.0% without being 0, and the mass percentage of Zn is 2.0-3.0%, without being 0. The magnesium alloy further comprises trace elements, thetrace elements comprise at least one of strontium, manganese, phosphorus, zirconium, tin, iron, copper and rare earth elements, and the mass percentage of the trace elements is 0-3% without being 0. The mechanical strength of the Mg-Si-Ca-Zn series magnesium alloy conforms to the strength requirements of a medical implanted material, by adjusting and controlling the content of the added alloy elements, the adjustment and control of the degradation speed of the alloy elements in a humane body can be achieved, the experimental results show that the alloy elements has no obvious toxicity to osteoblast, the biocompatibility is high, the patient pain is reduced, and the postoperative safety and comfort are improved.

The disclosure relates to a glass substrate support platform and a glass substrate macroscopic inspection device. The glass substrate support platform comprises a frame, a plurality of beams disposedside by side on the frame, and a plurality of suction cups connected to the beams, wherein the beams have cavities communicated with the suction cups, and the beams are selectively connected with a positive pressure source or a negative pressure source. According to the above technical solution, the beams connected to the suction cups can be selectively connected to the positive pressure source and the negative pressure source. When connected to the positive pressure source, the suction cups can blow outward, and the support platform can be used as an air floating platform to avoid scratchingthe surface of the glass substrate; when connected to the negative pressure source, the suction cups can blow inward to absorb the glass substrate such that the glass substrate can be stably placed onthe platform. That is, the glass substrate support platform provided by the disclosure can be switched between two modes to meet different applications.

The invention discloses a photoelectric sensor for the safety of a mechanical operation. The system comprises an annular detection head, a control box and system hardware. The annular detection head is connected with the control box trough cables, and the annular detection head comprises an annular housing, a transmitting lens, a receiving lens, an optical filter and a photoelectric emission detection circuit board. According to the photoelectric sensor for the safety of the mechanical operation, the appearance design and the mechanical structure are fitted, the outline is compact, and the occupied space is small; the sensor is simple to install, and can meet different types of punching machineries; no dead zones are in a detection range, so that a full coverage detection of the dangerousarea can be realized; when a manual operation is needed in punching small size material pieces, the difference between the material pieces of most materials and colors and a finger can be automatically recognized, thereby ensuring that a protection device does not interfere with an normal operation; and the setting function is flexible, so that settings of a threshold value and a multi-output modecan be set according to requirements, and different applications can be met.

The invention relates to the technical field of pipeline sanitation and safety, in particular to a self-adjusting pipeline cleaning robot and a cleaning method. According to the cleaning robot, the auxiliary module is arranged on the chassis of the movement module, and when the inner diameter of a pipeline is increased, a sleeve stretches the length of a telescopic rod assembly under the action of the magnetic force of a magnetic adsorption ball so as to keep the chassis to walk stably; when the inner diameter of the pipeline is reduced, the inner wall of the pipeline applies axial pressure to the sleeve, the length of the telescopic rod assembly is compressed, and the passing ability of the base plate in the pipeline is guaranteed. The hidden danger that the robot cannot work normally and even turns backwards due to the fact that the forefront end part and the tail end part, close to the robot, of the crawler permanent magnet adsorption structure are in poor contact with the inner wall of the pipeline when the robot enters the turning section of the vertical pipeline from the horizontal pipeline is effectively eliminated. In the vertical pipeline section, the telescopic rod assembly and the crawler belt permanent magnet adsorption structure are coordinated and matched, it is guaranteed that the robot crawl stably, and then vertical pipe wall cleaning and disinfection work is better completed.

The invention discloses a device for electronic device transfer. The device comprises an upper electrode layer, a lower electrode layer, a viscous layer and an electrical active layer, wherein the upper electrode layer and the lower electrode layer are arranged oppositely in a spaced mode, an electric field can be generated between the upper electrode layer and the lower electrode layer after electrification, the viscous layer is fixedly connected to the lower surface of the lower electrode layer, the electrical active layer is arranged between the upper electrode layer and the lower electrode layer and can be squeezed to deform longitudinally or horizontally under the action of the electric field generated between the two electrode layers after electrification, the deformation of the electrical active layer drives the electrode layers and the viscous layer to deform so that shearing force and / or concave-convex ejecting force can be generated, and then the electrode layers and the viscous layer are debonded to be placed on a receptor substrate. The invention further discloses a method for electronic device transfer by means of the device and the application of the device. The method and device can be used for active placing of electronic devices. The device is simple in structure, quick and reliable in use, easy to control and the like. The method and device can be used for transfer of ordinary ultrathin and flexible electronic devices in various specifications as well as transfer of large-area array micro-electronic devices / structures.

The invention discloses a wide-coverage high-resolution greenhouse gas imaging spectrometer and application thereof. An optical system of the spectrometer comprises a reflecting front telescope objective and a collimating lens, as well as multiple paths of independent spectroscopic imaging devices. The front telescope objective and the collimating lens are shared by multiple spectral channels, a spatial alignment problem does not need to be considered, and the structures of the two are of a three-mirror structure; the spectroscopic devices adopt a structure of near Littrow rack, prism+prism grating+prism, a reflecting immersion grating splits beams, and a prism wedge assists in chromatic dispersion and distortion correction; the imaging devices are of a transmitting pittswan structure. Thespectrometer provided by the invention has the advantages of wide coverage, low distortion, large relative aperture, high transmittance and high resolution and can be used for simultaneously performing high-accuracy quantitative detection on concentrations of four different types of greenhouse gases.

The intelligent combined garbage classifier is characterized by comprising an intelligent interaction system and a servo system, the intelligent interaction system is mainly composed of an image recognition system and a voice recognition system, is combined with a network technology and an intelligent technology, can recognize garbage types and semantic meanings and execute corresponding functions, and can also execute corresponding functions according to the current position and environment of a user and a destination specified by an instruction. A real-time mapping technology and a network technology are utilized to establish a map between the own position and the destination, and an optimal motion path is planned; the servo system is mainly composed of a can cover control system and an autonomous movement system, the can cover control system receives the image recognition system and the voice recognition system to control opening and closing of the can cover, and the autonomous movement system receives the voice recognition system to control the position of the autonomous movement system. Compared with a garbage classifier in a traditional scheme, a man-machine interaction function is added, the use experience of a delivery person is improved, the multi-layer combination mode can adapt to different user crowds and application scenes, and garbage classification benefits are improved.

The invention provides a waste recycling solar sewage purification airgel and a preparation method thereof, comprising steps: (1), adding graphite powder, NaNO 3 , concentrated sulfuric acid, KMnO 4 , deionized water, H 2 o 2 , using freeze-drying method to obtain graphene oxide powder; (2), adding graphite powder in graphene oxide powder, heating in microwave oven to obtain reduced graphene oxide; (3), mixing solution in water, NaOH and thiourea (4), add cellulose and alcohol to the reduced graphene oxide dispersion, ultrasonic treatment, after liquid nitrogen freezing, carry out freeze-drying, obtain graphene cellulose airgel, The graphene / cellulose airgel prepared by the present invention has excellent hydrophilic properties, extremely low density, extremely high porosity, and extremely low thermal conductivity. The size and thickness of the airgel can be controlled, which can meet its requirements. different applications.

The invention discloses a Sr-containing magnesium alloy. The magnesium alloy contains Mg-Si-Sr-Zn and comprises, by mass percent, 0-1.0% (without including 0) of Si, 0-1.0% (without including 0) of Srand 2.0-3.0% of Zn. The magnesium alloy further comprises the trace elements including strontium, manganese, phosphorus, zirconium, stannum, iron and copper, and at least one of rare earth elements.The mass percent of the trace elements is 0-3% (without including 0). The mechanical strength of the Mg-Si-Sr-Zn series magnesium alloy provided by the invention meets the requirement for strength ofmedical implant materials, and by adjusting and controlling the contents of the alloy elements, and the degradation speeds of the elements in human bodies can be adjusted and controlled. Experimentalresults prove that the magnesium alloy has no marked toxicity to osteoblast and is good in biocompatibility, suffering of patients is reduced, the postoperative safety is improved, and the comfort level is increased.

The invention discloses a closed switch tube, comprising an insulator (310), a first conductor (320), a first support (330), a second conductor (340) and a third conductor (370). One end of the second electrical conductor (340) is disposed in the cavity formed by the insulator (310), the first electrical conductor (320) and the first support (330) and can be connected with the The first conductor (320) is contacted or separated, characterized in that the third conductor (370) is sleeved on the outside of the insulator (310) and is fixedly connected with the second conductor (340). A second elastic member (380) is arranged between the third electrical conductor (370) and the first support member (330), and the closed switch tube of the present invention is not affected by external force, and the internal conductive members are always in a constant state. Open state, can meet different applications.

The invention discloses an IC encryption method capable of achieving ultralow standby power consumption, which comprises a first circuit, a second circuit and a key, wherein the first circuit comprises a standby circuit, a core circuit and an Eflash macro circuit; the standby circuit comprises a PMOS tube and an NMOS tube; the core circuit comprises a calibrator and a register; the PMOS tube is electrically connected with the calibrator; the NMOS tube is electrically connected with the register; when for connection of the first circuit, the calibrator judges whether the permission exists or not according to a read authorization code; when no permission, the PMOS tube is connected with the first circuit for calibration; when the permission exists, the NMOS tube is connected with the first circuit, provided with a corresponding register and enters a low-power-consumption standby state; and the external of the second circuit is further connected with a key. According to the IC encryptionmethod capable of achieving the ultralow standby power consumption, the IC can be encrypted to increase the security; meanwhile, the problem of standby power consumption is solved, and the applicationsurface is expanded.

The invention relates to a fume dust shielding isolation device used for solving the problem of incomplete suction and exhaust of the fume dust during the using process of the household and commercial kitchen ranges in the prior art. The fume dust shielding isolation device comprises a stove head ring, a suction motor, an air channel pipe and is characterized in that an exhaust motor and an oxygen supplying pipeline are also arranged in the fume dust shielding isolation device; the air channel pipe comprises an outer air channel pipe and an inner air channel pipe; the suction motor is mounted on the air inlet of the outer air channel pipe; the air outlet of the outer air channel pipe is positioned above the stove head ring; the exhaust motor is mounted on the air outlet of the inner air channel pipe; the air inlet of the inner air channel pipe is positioned above the stove head ring; the outer air channel pipe is communicated with the stove head ring through the oxygen supplying pipe. The fume dust shielding isolation device has the advantages that the design is novel; the suction motor and the exhaust motor are mounted separately; the positive pressure air outlet can be inclined upwards or downwards or arranged horizontally; besides, an oxygen supplying pipe is arranged in the isolation device so that the fume dust suction effect of the isolation device is complete; meanwhile, the air pollution caused by the insufficient combustion is eliminated; the fume dust shielding isolation device is widely applicable to the various types of household and commercial fume dust suction and exhaust devices.

The invention discloses a copper-iron alloy wire, which is characterized in that: the mass percentage of the copper-iron alloy is composed of 5.0-20.0wt% Fe, and the balance is Cu and unavoidable impurities; the microstructure of the copper-iron alloy contains direction of the fibrous Fe-rich phase, the fibrous Fe-rich phase accounts for more than 80% of the total area content of the Fe-rich phase. In the microstructure of the copper-iron alloy of the present invention, the fibrous Fe-rich phase accounts for more than 90% of the total area content of the Fe-rich phase, the fibrous Fe-rich phase is conducive to the balance of material strength and electrical conductivity, and the deviation of the iron content at the head and tail of the copper-iron alloy is ≤3 %.

The invention belongs to the fields of nuclear chemical engineering and powder metallurgy, and particularly relates to a combined type airflow jetting device suitable for powder materials. The device comprises an emptying pipeline at the uppermost part, an air inlet pipeline connected to the emptying pipeline through an emptying electromagnetic valve, a filter pipe and an injection pipe which are respectively communicated with two air inlets of the air inlet pipeline, an air outlet pipe arranged below the injection pipe, and an injector head arranged at the lower end of the air outlet pipe, wherein the filter pipe is located above the injection pipe, an opening is formed in the upper portion of the filter pipe, an opening is formed in the side face of the injection pipe, and the two air inlets of the air inlet pipeline are connected to the opening in the upper end of the filter pipe and the opening in the side face of the injection pipe through the air inlet pipeline respectively. According to the device, the flow ability of the powder can be effectively improved, the feeding efficiency of the powder is improved, and the remarkable benefits of improving the production efficiency of a material returning production line and saving the production cost are achieved. The device is convenient to install or remove, the injector head and the injection pipe are in a separable mode, and the injector head can be made into various modes to meet various different application occasions.