21results about How to "Low manufacturing process requirements" patented technology

The invention discloses an LVDS (Low Voltage Differential Signaling) receiving circuit with a wide common-mode input range. The LVDS receiving circuit comprises a common-mode conversion circuit, a main comparator circuit, a secondary comparison circuit and a logical judgment circuit, the common-mode conversion circuit is used for converting an external wide common-mode input differential signal into a signal with constant common-mode voltage and no attenuation of the differential signal; the main comparator circuit identifies the converted differential signal to complete differential-to-single-ended data conversion; the secondary comparator circuit is composed of two low-speed comparators; and the logic judgment circuit judges the output of the main comparator and the window comparator to ensure that the output of the input end of the circuit group is a constant level under the short circuit and disconnection conditions, so that the function of dynamic failure protection of the circuit is realized. The wide common-mode input circuit can realize discrimination of wide common-mode input signals ranging from-4V to 5V, and has a dynamic failure protection function.

According to the magnetic energy generator, the characteristic that like poles repel each other is utilized, the gyro flywheel is arranged, the mechanical arms are arranged on the gyro flywheel at equal intervals, the magnetic blocks are arranged at the tail ends of the mechanical arms, the annular track is arranged at the outer gap of the rotation track circle of the mechanical arms, and the magnetic blocks are integrally formed in the annular track; the polarity, facing the annular track, of a mechanical arm magnetic block at the tail end of the mechanical arm is the same as the polarity, facing the circle center, of the circular track, and the mechanical arm magnetic block is inclined. The gyro flywheel is suspended on the bottom plate of the machine shell in a magnetic suspension mode. By means of the design, magnetic energy is converted into mechanical energy, the gyro flywheel is pushed to rotate, the rotation of the gyro flywheel drives the generator spindle, and therefore the generator outputs electric energy.

The invention discloses a singular point optical temperature sensor based on beat frequency detection. Comprising a wide-spectrum light source, a coupling lens group, a spot size converter, a temperature sensing unit, a photoelectric detector and a lithium niobate film layer which are located in a packaging shell. The broadband light source, the coupling lens group, the spot size converter, the temperature sensing unit and the photoelectric detector are all located on the upper surface of the lithium niobate thin film layer and are sequentially arranged in the light path direction. Light emitted by the wide-spectrum light source sequentially passes through the coupling lens group, the spot size converter and the temperature sensing unit and then is detected and received by the photoelectric detector. The electro-optical effect of lithium niobate is utilized, the resonant frequency of the microcavity is adjusted by applying voltage, the temperature sensing unit is kept at a singular point in an initial state, and the influence of interference of external factors on the sensor is restrained; the anti-space-time inversion symmetric structure is constructed, the sensitivity of the temperature sensor is improved by using the sensitivity of singular points to external perturbation, and the temperature sensor has the advantages of high sensitivity, small size and integratability.

The utility model discloses a flat plate split type air conditioner, which relates to the technical field of air conditioners and comprises an indoor unit and an outdoor unit, the indoor unit is mounted in a room, the outdoor unit is arranged outside the room, and a water supply pipe and a water return pipe which are used for refrigerating / heating agent circulation are connected between the indoor unit and the outdoor unit. The indoor unit comprises a flat plate split type air conditioner indoor unit body, and the outdoor unit comprises a fluorine medium refrigerating / heating system and a water medium refrigerating / heating system. The flat plate split type air conditioner indoor unit body is vertically arranged on a wall, a water supplementing opening and an automatic exhaust valve are arranged at the upper end of one side of the flat plate split type air conditioner indoor unit body, and a condensate pipe is arranged on one side of the lower end of the flat plate split type air conditioner indoor unit body. According to the flat plate split type split air conditioner indoor unit, the indoor unit body has no pressure, no noise and no accumulated dust exist in operation, the manufacturing cost of the indoor unit is greatly reduced, and the use comfort degree is greatly improved.

The invention belongs to the technical field of salt resistance and corrosion prevention, and provides a preparation formula determination method of an anti-corrosion magnesium pipe pile, a preparation method and the magnesium pipe pile, firstly, according to a preset construction scene of the to-be-prepared pipe pile, the to-be-prepared pipe pile is divided into an underwater area, a splash area and an atmospheric area; then formulating formulas of materials required for preparing the pipe pile according to different areas, using magnesium concrete in the preparation formulas of the underwater area, the splash area and the atmospheric area to ensure the overall corrosion resistance of the pipe pile, using an anti-freezing agent and a preservative in the formula of the underwater area to reduce the direct damage of seawater to the pipe pile, and improving the corrosion resistance of the pipe pile. Carborundum and a waterproof compacting agent are used in the formula of the splash zone, the impact resistance is improved on the basis of improving the corrosion resistance, impact damage of seawater to the pipe pile is avoided, the waterproof compacting agent is added in the preparation formula of the atmosphere zone, and the economical efficiency is improved on the basis of improving the corrosion resistance; and the surface layer of the pipe pile does not need to be coated with a preservative, so that the requirement on a preparation process is reduced.

The invention relates to the technical field of perovskite solar cells, in particular to perovskite ink, a perovskite thin film and a cell device, and the perovskite ink comprises a formamidino perovskite material, a coordination solvent and a nucleation regulating agent. The aggregation potential barrier of perovskite nucleation in the perovskite ink is low, the prepared perovskite wet film only has a pure perovskite alpha phase, generation of an impurity phase of the perovskite wet film is inhibited, a more uniform perovskite thin film can be obtained, and the perovskite ink is suitable for large-area thin film preparation.

The present disclosure provides a thermal ablation catheter with a thermocouple, comprising: a thermocouple temperature measuring end, which is in a sandwich structure, including a first electrode, a second electrode and a sandwich weld, wherein the free ends of the first electrode and the second electrode face oppositely and are parallel to each other and close to each other, and are conductively connected through the sandwich weld; a liner, which is a hollow structure for accommodating a thermal ablation component, and the thermocouple temperature measuring end is arranged on the outer circumferential surface of the liner; a heating resistance wire, which is wound around the outer circumference of the liner in a helical shape; wherein the thermocouple temperature measuring end is arranged on the liner between two adjacent turns of the heating resistance wire, the outer surface of the thermocouple temperature measuring end and the outer surface of the heating resistance wire are on the same circumferential surface, the first electrode, the second electrode and the heating resistance wire are arranged in parallel, the thermocouple temperature measuring end is centrally symmetrical, and the first electrode and the adjacent thermal resistance wires, the second electrode and the adjacent thermal resistance wires are centrally symmetrical about the center point of the thermocouple temperature measuring end.

The invention relates to the technical field of aircrafts, in particular to an electric ducted fan type fixed wing short-distance take-off and landing aircraft which comprises an aircraft body (1), a flight control system (2), electric ducted fans (3), jet engine tail nozzles (4), front wings (5), power batteries (6) and rear wings (7). The electric ducted fan type fixed wing short-distance take-off and landing aircraft is high in flight speed and can also fly at an extremely low speed; special airports and runways are not needed, so that the use cost is reduced; through electric driving, the carbon emission is obviously reduced; and the fan is mounted in the duct, so that the danger to the surrounding environment can be reduced, and the safety is high.

The invention provides a display substrate, a manufacturing method thereof and a display device, and belongs to the technical field of display. The display substrate includes: a substrate; the source electrode is located on the substrate and extends in the first direction; the semiconductor layer is positioned on one side of the source far away from the substrate; the gate insulating layer is positioned on one side of the semiconductor layer away from the substrate; the grid electrode is located on the side, away from the substrate, of the grid insulating layer and extends in the second direction, and the first direction intersects with the second direction; wherein the semiconductor layer comprises a conductive first part and a non-conductive second part, the first part serves as a drain electrode, the orthographic projection of the second part on the substrate is overlapped with the orthographic projection of the source electrode on the substrate, and the orthographic projection of the second part on the substrate is located in the orthographic projection of the grid electrode on the substrate; the orthographic projection of the first part on the substrate is not overlapped with the orthographic projection of the gate on the substrate. The pixel density of the display substrate can be improved.

The present invention provides a position-sensitive anode with a heterogeneous structure for inductive reading and a method for manufacturing the same, which solves the problem that the existing position-sensitive anode processing requires the use of high-precision microelectronic processes or laser etching equipment, and the processing cycle and processing cost are relatively high. The position-sensitive anode includes an anode substrate, a W electrode, an S electrode and a Z electrode, wherein the W electrode and the S electrode are located in the same plane layer and are located on the top layer of the anode substrate; the Z electrode is located in another plane layer and is located on the bottom layer of the anode substrate. Placing the three electrodes in two different plane layers respectively reduces the requirements for manufacturing equipment and manufacturing processes, greatly simplifies the difficulty of manufacturing the position-sensitive anode, and shortens the manufacturing cycle of the position-sensitive anode; increases the width of the insulating channel between the electrodes, avoids the insulating channel between the two electrodes being too narrow, reduces the risk of conduction between the two electrodes, and improves the reliability of the detector.

The present invention provides a battery direct cooling system, method, vehicle battery management system and vehicle, the system includes: a direct cooling plate and a switching detection device, a flow channel and a liquid accumulation tank are arranged in the direct cooling plate; wherein, refrigerant flows in the flow channel, and two flow ports are arranged, namely a first flow port and a second flow port, one of the flow ports is selected as the inlet of the flow channel, and the other flow port is selected as the outlet of the flow channel; the liquid accumulation tank includes a first liquid accumulation tank and a second liquid accumulation tank, which are respectively arranged at the first flow port and the second flow port, and refrigerant is deposited, the liquid accumulation tank near the outlet is used to replenish the refrigerant in the flow channel, and the liquid accumulation tank near the inlet is used to receive the refrigerant flowing into the inlet, so that the refrigerant in the flow channel remains in a saturated state; if a trigger signal generated by the switching detection device is received, the outlet is switched to the inlet to allow the refrigerant to flow in the reverse direction. The present invention ensures the uniformity of heat exchange in the direct cooling system, avoids the phenomenon of drying out, and the reliability of heat exchange in the direct cooling system is high.

The present invention discloses an aromatic amine organic compound and its application. The structure of the aromatic amine organic compound is shown in the general formula (1): the compound of the present invention is a monoamine compound containing benzo[4,5]imidazo[1,2-a]pyridine and its derivatives and benzoxazolyl or benzothiazolyl, has a more suitable Eg energy level and thermal stability, a lower evaporation temperature and a decomposition temperature higher than the evaporation temperature, and a higher extinction coefficient at a wavelength of 380nm, and can effectively absorb high-energy external light sources in the ultraviolet region to minimize damage to organic materials inside organic light-emitting devices. The compound of the present invention has a higher refractive index in the visible light field. After being applied to an OLED device as a covering layer, it can effectively improve the light extraction efficiency of the OLED device and reduce the angle dependence, thereby improving the device luminous efficiency and optimizing the visual deviation performance.

The embodiment of the invention discloses a transistor and a preparation method thereof, an integrated circuit and electronic equipment, and relates to the technical field of semiconductors. The transistor comprises a first electrode, a first grid electrode, a first grid dielectric layer, a channel layer, a second grid dielectric layer, a second grid electrode and a second electrode. The first gate is located on the first pole. The channel layer is located on the side, away from the first gate, of the first gate dielectric layer. The second gate dielectric layer is located on the side, away from the first gate, of the channel layer. The second gate is located at one side of the second gate dielectric layer away from the first gate. The second electrode is at least partially located on the side, away from the first electrode, of the second grid electrode and makes contact with the channel layer. The transistor adjusts a threshold voltage thereof in response to a gate signal on one of the first gate and the second gate; and generate a drive current in response to a gate signal on the other of the first gate and the second gate. The threshold voltage of the transistor is continuously adjustable in a large range, and the balance requirements for high performance and low energy consumption in circuit design can be met at the same time.

The utility model relates to a wiring structure for improving high-speed signal loss for a high-speed circuit board. The wiring structure comprises two differential lines which are symmetrically arranged in parallel, each differential line structurally comprises a first signal line and a second signal line which are parallel to each other, and the first signal line and the second signal line are connected through a connecting signal line. The first signal line is arranged in a BGA area of the high-speed circuit board, and the second signal line is arranged in a non-BGA area of the high-speed circuit board; the first signal line and the second signal line simultaneously meet the differential impedance requirement of the high-speed circuit board, and meanwhile, the line width of the first signal line is smaller than that of the second signal line; the line distance between the two first signal lines is smaller than the line distance between the two second signal lines. By arranging the first signal line, the second signal line and the connecting signal line, the signal loss of the high-speed printed board under a high-frequency signal can be improved, so that the high-frequency signal transmission performance of the high-speed printed board is improved.

The application relates to an atomizer and an electronic atomization device, which comprise a suction nozzle, a shell, a soft bag and a liquid outlet valve mechanism; at least one air-permeable structure is arranged in the shell wall of the shell close to the suction nozzle, and a first liquid outlet is arranged in the shell wall of the end of the shell far from the suction nozzle; the soft bag is used for storing atomization liquid and is arranged in the shell, the soft bag expands or shrinks along with the amount of the stored atomization liquid, an end of the soft bag far from the suction nozzle is provided with a second liquid outlet, and the second liquid outlet is arranged in correspondence with the first liquid outlet; the liquid outlet valve mechanism comprises a liquid outlet valve and a supporting piece, the liquid outlet valve mechanism is used for opening or closing the second liquid outlet, and the supporting piece is connected with the liquid outlet valve. The atomizer can avoid dry burning and oil leakage, reduce the manufacturing process requirement and the process cost.

The invention relates to the technical field of engines, and discloses a side-opening multilayer axial magnetic flux dual-motor system which comprises a shell assembly, two single-side shells are spliced into a cylindrical shell in a vertically symmetrical mode, and a plurality of positioning grooves are symmetrically formed in the left side and the right side in each single-side shell; the stator assembly comprises a plurality of stators, and the plurality of stators are respectively mounted in the plurality of positioning grooves; the rotor assembly comprises two rotating shafts and a plurality of rotors, the two rotors are coaxially, symmetrically and rotatably connected in the cylindrical shell, the plurality of rotors are fixedly connected to the rotating shafts in the axial direction, the plurality of rotors on the two rotating shafts are symmetrically distributed, and the stators are located between the two adjacent rotors; and the heat dissipation assembly is mounted on the outer wall of the single-side shell, is communicated with the stator and is used for dissipating heat of the stator. The side opening type shell is combined with modular design of all parts, the number of layers of the stator and the rotor can be increased according to requirements, the machining difficulty is reduced, installation and maintenance are more convenient, the cost is reduced, and the defect of a multilayer axial magnetic flux dual-motor system in the market is overcome.

The present invention provides a method for preparing a dual-gate device and a dual-gate device, the method comprising: preparing a bottom gate; preparing a bottom gate dielectric layer on the bottom gate; covering the bottom gate dielectric layer with a single layer or multiple layers of low-dimensional materials; preparing a top gate dielectric layer on the low-dimensional material; preparing a top gate on the top gate dielectric layer; covering the top gate dielectric layer, the top gate and the low-dimensional material with an electron beam negative photoresist and patterning and etching them; covering the substrate with an electron beam positive photoresist and patterning and etching them, exposing the low-dimensional material and forming an electrode mask at the same time; etching away the exposed low-dimensional material; coating the remaining part of the low-dimensional material covered by the electron beam negative photoresist to obtain an end contact electrode in contact with the two ends of the low-dimensional material, and preparing an end contact dual-gate device. The above scheme can reduce the size of the device, conduct in-depth research on the working mechanism of multi-layer low-dimensional materials in dual-gate devices, enhance the control of the gate over the conductive channel, and improve device performance.

The utility model discloses a kind of elastic traction connecting devices for leather embryo transportation, including front vertical iron plate and rear vertical iron plate, the middle part of front vertical iron plate is equipped with left through hole, the middle part of rear vertical iron plate is equipped with right through hole, and wear-resistant bush is welded in left through hole and right through hole;One end of connecting rod is equipped with pin hole, connecting rod is inserted in two wear-resistant bushes, and spring, spring gland, limit nut are mirror image installed on the both sides of connecting rod;The both sides of front vertical iron plate and rear vertical iron plate are respectively welded with left square iron pipe and right square iron pipe, and iron hook is equipped at the end of left square iron pipe and right square iron pipe.The utility model has excellent buffering and shock-absorbing performance, can protect vehicle and goods, simple structure, low in cost, reliable connection, convenient to use.

The invention relates to the technical field of gas generators, in particular to a mixed gas generator and an automobile safety airbag. The mixed gas generator comprises a pipe body, an ignition assembly and an exhaust assembly; the ignition assembly and the exhaust assembly are connected to the two ends of the pipe body correspondingly, and the pipe body is filled with high-pressure inert mixed gas. The ignition assembly and the exhaust assembly are both in interference fit with the pipe body and are connected to the corresponding ends of the pipe body in a welded mode. The mixed gas generator is simple in structure, convenient to install, good in sealing performance, stable and reliable, the requirements for the manufacturing process and precision of parts can be lowered, and then the manufacturing and using cost can be lowered.

The invention relates to the technical field of electrochromic devices, in particular to an integrated electrochromic device and a preparation method thereof. The integrated electrochromic device sequentially comprises a first transparent conductive layer, a mixed electrochromic layer and a second transparent conductive layer, the mixed electrochromic layer comprises UV glue, a solvent, an electrochromic material and an ionic agent. The integrated electrochromic device can be prepared through UV curing, the requirement for the preparation technology of the solid-state electrochromic device is lowered, meanwhile, the electrochromic material and the electrolyte are mixed in the same adhesive layer, the thickness of the adhesive layer can be reduced, the solid-state electrochromic device can be prepared easily and efficiently, and the manufacturing cost of the solid-state electrochromic device is reduced. In addition, no volatile solvent exists in the preparation process, no harm is caused to people and the environment, and industrialization of solid electrochromic devices is facilitated. Test results show that the prepared integrated electrochromic device is high in response speed, excellent in color changing performance, high in transparency and friendly to human and environment.

This application discloses a method for encapsulating organic solid-liquid phase change materials. The method includes the following steps: mixing phase change microcapsule powder, polymer, crosslinking agent, and water; reacting; washing with water; and drying to obtain the organic solid-liquid composite phase change material. This invention has low process requirements, does not use organic solvents, has minimal environmental pollution, and the prepared phase change profile has an adjustable shape, exhibiting characteristics such as no leakage, high heat storage density, and good stability, making it highly promising for applications in cold chain transportation and thermal management.