27results about How to "Reduce design requirements" patented technology

The utility model provides a mattress frame taking mechanism, and belongs to the technical field of machinery. The problem that an existing mechanism is large in design difficulty is solved. The mattress frame taking mechanism comprises a rack and a grabbing assembly used for grabbing a frame. The rack is provided with a longitudinal beam and a lifting assembly used for driving the longitudinal beam to ascend and descend. A supporting frame is arranged between the longitudinal beam and the material grabbing assembly, and the material grabbing assembly is arranged on the supporting frame. The supporting frame is hinged to the lower end of the longitudinal beam, a driving mechanism enabling the supporting frame to swing in a reciprocating mode is arranged on the longitudinal beam, and the swing angle of the supporting frame ranges from 0 degree to 90 degrees so that the frame can be switched from the vertical state to the horizontal state. The mattress frame taking mechanism is low in design difficulty.

The invention discloses a square part parallelism and perpendicularity deterministic modification processing method which comprises the following steps: S1, according to the parallelism and perpendicularity error S (x, y) of the surface of a to-be-processed square part, deterministic modification equipment obtains residence time distribution V (x, y) of the to-be-processed surface in the length and width directions through residence time calculation and conversion; s2, the deterministic shaping equipment does variable-speed motion along the length and width of the to-be-machined surface according to V (x, y) distributed by residence time, so that parallelism and perpendicularity error correction is carried out; s3, the parallelism and perpendicularity error of the square part to be machined is detected, and if the parallelism and perpendicularity error of the square part to be machined meets the preset requirement, machining is completed; otherwise, the step S1 and the step S2 are executed repeatedly till the parallelism and the perpendicularity of the square part to be machined meet the preset requirements. The method has the characteristics of simple principle, high machining precision, high automation degree and the like.

The invention discloses a SiC MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) device and a preparation method thereof, and relates to the technical field of semiconductors. The epitaxial layer is located on the first surface of the substrate; the first graphene layers are located on the surface, away from the substrate, of the epitaxial layer, and the two first graphene layers are arranged at intervals in the direction parallel to the substrate; the source electrodes are located on the surface, away from the substrate, of the first graphene layer, the two source electrodes are arranged at intervals in the direction parallel to the substrate, and the orthographic projection of the source electrodes is overlapped with the orthographic projection of the first graphene layer in the direction perpendicular to the substrate; the second graphene layer is located on the second surface of the substrate; wherein the first surface and the second surface of the substrate are oppositely arranged; the drain electrode is located on the surface, away from the substrate, of the second graphene layer; the gate dielectric layer is located on the surface, away from the substrate, of the epitaxial layer and located between the two source electrodes; and the gate is located on the surface, deviating from the substrate, of the gate dielectric layer. According to the invention, the performance of the SiC MOSFET device can be improved.

The utility model discloses a gas meter current control circuit based on M-Bus communication, which is characterized by comprising a transmitting end circuit and a receiving end circuit, the transmitting end circuit is connected with a single chip microcomputer, the receiving end circuit is connected with the transmitting end circuit through an M-Bus communication bus, the transmitting end circuit is used for converting a transmitting signal of the single chip microcomputer into a current signal, and the receiving end circuit is connected with the receiving end circuit through the M-Bus communication bus. And the receiving end circuit is used for detecting the current signal change and decoding the current signal change into a digital signal. Compared with the prior art, the gas meter current control circuit based on the M-Bus communication has the advantages that the gas meter current control circuit based on the M-Bus communication is carried out in a two-wire system communication mode, corresponding level signals are converted and modulated through current signals, the stability of signal transmission is improved, and the anti-interference capacity is improved.

The invention provides a small-opening distance light and signal lamp module system. A distance light source module, a distance light main light type total reflection module, a distance light auxiliary light type total reflection module, a distance light incident lens module and a distance light emergent lens module are arranged on a distance light lens body; the high-beam module main body is provided with a high-beam light source module, a high-beam main light type total reflection module, a high-beam light inlet lens module and a high-beam light outlet lens module; the signal lamp module body is provided with a signal lamp light source module, a signal lamp main light type total reflection module, a signal lamp light inlet lens module and a signal lamp light outlet lens module. The modular design is adopted, all the modules can be made into the same size, the number of the modules is designed according to different performance requirements, and horizontal arrangement, vertical arrangement or tree shape and the like can be achieved.

The application provides a matrix converter system and a control method thereof. The matrix converter system comprises a first output port and a second output port, at least two phases, N converter valve bridge arms, Q first magnetic elements, the i-th first magnetic element comprises N first ports, M second ports, the N first ports of the i-th first magnetic element are connected in series with one end of the N converter valve bridge arms respectively, the other end of the N converter valve bridge arms is connected with any one phase of the first output port respectively, and the other end of at least one converter valve bridge arm is connected with a phase of the first output port which is different from the phase of the first output port connected with the other end of the remaining converter valve bridge arms, and the M second ports of the i-th first magnetic element are connected with any one phase of the second output port respectively, and at least one second port is connected with a phase of the second output port which is different from the phase of the second output port connected with the remaining second ports. i i i i i i ​​​​​​

The utility model relates to the technical field of costume embossing, and discloses a novel costume embossing device which comprises an embossing support, an embossing device, a displacement platform, a transmission mechanism and a lifter, the displacement platform is installed on the embossing support, the lifter is installed on the displacement platform, the embossing device is installed at the lifting end of the lifter, and the transmission mechanism is installed on the transmission mechanism. A conveying mechanism is arranged below the embossing device and used for conveying an object to be embossed to the position below the embossing device, and the object is embossed through the embossing device. The embossing technology is reasonably designed, the embossing support, the embossing device, the displacement platform, the conveying mechanism and the lifter are adopted, embossing can be conducted at any time by changing the position, embossing can be easily operated, conveying is continuous, and the embossing time efficiency is high. The controller is matched with the embossing device, the displacement platform, the transmission mechanism and the lifter, so that automatic production is realized, manual labor force is liberated, and embossing errors and the like are also reduced.

This invention discloses an adjustable clearance reciprocating compressor and its control method, belonging to the field of compressor technology. The reciprocating compressor includes a cylinder body with a piston chamber, a main piston in the piston chamber, and an intermediate piston in the piston chamber. The intermediate piston and the main piston form a compression chamber. It also includes an adjustment mechanism, which includes a partition plate and a metal diaphragm. The intermediate piston and the partition plate form a first chamber, the partition plate and the metal diaphragm form a second chamber, and the metal diaphragm and an end plate form a third chamber. The partition plate has a channel connecting the first and second chambers, and the channel is equipped with the control mechanism. The third chamber is equipped with an oil supply system. The control method is based on the reciprocating compressor. This solution not only enables clearance adjustment of the reciprocating compressor but also features reliable compressor sealing performance and optimized stress on the metal diaphragm to extend its service life.

This utility model provides a water tank assembly and a cooking appliance. The water tank assembly includes: a water tank with a receiving cavity; a water guide pipe disposed inside the water tank and communicating with the receiving cavity, the water guide pipe and the water tank being integrally formed; a water outlet pipe extending out of the water tank, the water outlet pipe and the water tank being integrally formed; and a connecting pipe, the water guide pipe being connected to the water outlet pipe through the connecting pipe. The technical solution of this application effectively solves the problems of complex assembly process and high processing cost of water tank assemblies in related technologies.

The invention belongs to the field of wave gliders, and particularly discloses a wave glider system for controlling steering based on sea surface floating body cable transmission, steering driving torque of a sea surface floating body is transmitted by means of a thin and long cable between the sea surface floating body and a glider, an underwater glider wing plate limiting device is driven to rotate by 180 degrees, and by means of rotation of the limiting device, the underwater glider wing plate is driven to rotate by 180 degrees. And the wing plate in contact with the limiting device is driven to turn over, so that the turning and reversing of the wing plate are realized. After all or part of the wing plates on one side are turned over, the horizontal thrust borne by the wing plate and the thrust borne by the other wing plate form steering torque, and the whole wave glider is driven to steer. Only a mechanical transmission structure is designed in the underwater glider, and power elements do not need to be installed.

The invention discloses a passive auxiliary soft switching power amplifier based on hybrid ZVS (Zero Voltage Switching) / ZCS (Zero Voltage Switching). The passive auxiliary soft switching power amplifier comprises a double-direct-current voltage module, a double-resonant capacitor and resonant inductor passive soft switching network, a midpoint double-path parallel bridge arm, a double-switching tube high-frequency main power output bridge arm, a double-parallel auxiliary capacitor and an LC filtering output network. The passive auxiliary device adopted by the invention is simple, an additional auxiliary switch tube and a driving module are not needed, and the control complexity is greatly reduced; the design that the resonant inductor is connected in series with the midpoint bridge arm avoids the direct connection risk of the bridge arm fundamentally, dead time does not need to be set, and the operation reliability is improved; meanwhile, a hardware condition is created for realizing hybrid ZVS / ZCS for the full-switching tube, so that the switching loss is reduced, the heat loss of the whole machine is reduced due to the low-loss characteristic of the passive network, the heat dissipation design can be simplified, and the service life of the device can be prolonged; and the network structure is simple, small in size and easy to integrate.

The application discloses a LIN automatic addressing system and method combined with a single-wire bidirectional protocol, wherein the automatic addressing system comprises a host, a slave module and a LIN bus; the slave module comprises a plurality of slave nodes; each slave node comprises a LIN physical layer transceiver, two bidirectional ports PIN0 and PIN1, and a LIN protocol controller; the LIN physical layer transceiver serves as a receiving end and a transmitting end of the slave node and is in bidirectional communication with the LIN protocol controller through control signal lines TXD and RXD; when the first slave node and the second slave node are disconnected, the whole system still performs automatic addressing; and when the link between the last slave node and the previous slave node is disconnected, the last slave node can still complete address allocation.

The invention relates to the technical field of integrated circuits, and discloses a hysteresis comparator circuit based on a double-gate field effect transistor and an integrated chip, the hysteresis comparator circuit comprises at least two cascaded phase inverters, each phase inverter at least comprises an input tube and a load tube, the input tube is connected with the load tube, and the load tube is connected with the input tube. The drain electrode of the input tube is connected with the source electrode of the load tube, a connection node is configured as the output end of the phase inverter, and at least one of the input tube and the load tube of each phase inverter is a double-gate field effect tube; the feedback electric wire is connected between the second grid electrode of the double-grid field effect transistor in the first-stage phase inverter and the output ends of the other phase inverters, so that signals on the first grid electrode and the second grid electrode of the double-grid field effect transistor change in an in-phase mode, and positive feedback for achieving the hysteretic effect is formed. According to the hysteresis comparator, the common modulation effect of the two grid electrodes of the double-grid field effect transistor is utilized to form the hysteresis effect, the on-chip integration difficulty of the hysteresis comparator is reduced, and the flexibility of the hysteresis comparator is improved.

The utility model relates to the technical field of mobile power supply, concretely relates to a mobile power supply. Mobile power supply includes the casing, control circuit board, charging wire and handle plug connector, control circuit board installs in the casing, and one end of charging wire is connected with control circuit board electricity, and charging wire leads out from the casing, and handle plug connector fixed mounting is installed on charging wire, and the handle plug connector is equipped with the plug -in groove, and the charging head of charging wire can be detachably inserted in the plug -in groove to form the handle structure. The casing does not need to set up the storage groove to store the fixed charging head to form the handle structure, avoids the high requirement of the casing design and mobile power supply internal component design layout, improves the problem of mobile power supply overall structure design difficulty. And the handle plug connector is as the independent part, does not influence each other with the casing or internal component of mobile power supply itself, and the design freedom is also bigger, and the design requirement is also lower.

A kind of dual-phase variable loop order increment high-resolution analog-digital converter circuit based on multi-bit quantization, containing analog loop filter (hereinafter referred to as ΔΣ loop) and downsampling digital filter, there is phase switching switch, the phase switching switch includes L-1 phase switching switch in loop filter and L-1 phase switching switch in downsampling digital filter.The present application uses the architecture of first order and high order IADC mixedly, signal weight is made uniform by distributing the period number of phase 1 larger in total clock cycle, while fast accumulation is obtained by high order accumulation in a small part of total clock cycle to effectively improve the accuracy of system.Guarantee the weight of part input signal uniform in a sampling conversion period, to improve the effectiveness of DWA to suppress multi-bit DAC nonlinearity.

The present invention discloses a cable-type low-frequency electromagnetic field radiator and a detection method, comprising a cable (1), two current-carrying conductors in the cable (1), a phase shifter (2) connected to the end of the cable (1), and the phase shifter (2) is driven by an external driving circuit (3) to change the phase of the current in the two current-carrying conductors in the cable. The invention provides a new method for the radiation of low-frequency electromagnetic fields, improves the stability and versatility of its design, and has significant military and economic benefits.

This invention relates to the field of automotive sealing strips, specifically disclosing a water pressure penetration testing device and method for automotive sealing strips. The device includes a water inlet terminal, a test box, and a water outlet terminal connected in sequence, and a pressurizing component connected to the water inlet terminal; an observation window disposed on the test box, facing the sealing strip; and several mounting blocks, detachably installed inside the test box and facing the observation window. The sealing strip to be tested is detachably installed between the mounting blocks and the observation window. The thickness of the mounting blocks is different, or the thickness of the mounting blocks can be varied. This solution allows for the selection of mounting blocks of appropriate thickness based on the pressure between the sealing surface of the sealing strip and the observation window, or by changing the thickness of the mounting blocks during the testing process to control the pressure between the sealing surface of the sealing strip and the observation window, thereby simulating different sealing pressures and sealing reaction forces between the sealing strip and the contact component during actual installation.

The present application relates to an endoscope and a hydraulically driven snake bone for the endoscope, the snake bone comprising: a joint assembly comprising a plurality of intermediate joints; the adjusting assembly comprises a channel and a plurality of bag bodies, the bag bodies are arranged between the adjacent middle joints, the channel is communicated with the bag bodies, the channel and the bag bodies form a driving unit, each driving assembly is at least provided with two driving units capable of being in linkage, one of the two driving units is filled with liquid, and the other driving unit is used for discharging liquid. The two driving units are oppositely arranged on the joint assembly. According to the snake bone, fluid hydraulic drive bending is achieved through the bag body, no traction rope is arranged, snake bone bending is achieved by controlling deformation of the bending bag body through hydraulic pressure, the snake bone can be controlled to be bent step by step from one end, the bending radius is reduced, and operation of an endoscope body in a narrow space is facilitated; the arrangement position of the driving unit is flexible, and fluid flows quickly in the driving unit, so that the bending direction of the snake bone is controlled more accurately.

The invention discloses a scum removing device for high-temperature alloy vacuum smelting, and particularly relates to the technical field of high-temperature alloy vacuum smelting. Comprising a shell and a high-temperature alloy smelting crucible, a moving mechanism is arranged on the shell and used for driving the shell to move to the position over the high-temperature alloy smelting crucible, and a moving rod and a fixed rod which are located at the same height are arranged under the shell; the ends, close to the inner wall of the high-temperature alloy smelting crucible, of the movable rod and the fixed rod are provided with arc faces matched with the inner wall of the high-temperature alloy smelting crucible, the shell is further provided with a driving mechanism used for driving the movable rod to rotate along the inner wall of the high-temperature alloy smelting crucible, and the end of the movable rod is kept to abut against the end of the fixed rod all the time in the rotating process. The moving rod abuts against the side wall of the fixed rod when not rotating. By the adoption of the technical scheme, the problem that an existing high-temperature alloy vacuum smelting scum removing device is low in scum removing efficiency is solved, and the scum removing efficiency is improved.

This invention discloses a method for parallelizing and pipelining a nested multiplier, relating to the field of intelligent warehousing technology. Based on the nested multiplication concept, the multiplication operation is decomposed into a formula to obtain the squaring operation of the high-bit part and the difference of squares plus shift operation of the low-bit part. Based on the characteristic of 2ab in the multiplication formula, the intermediate values ​​required for high-bit calculation are obtained by querying a preset low-bit square value table through the low-bit results. For batch data, multiple sets of data are processed simultaneously through a parallel architecture. The overall calculation process is divided into multiple pipeline stages, and continuous calculation is achieved through stage cascading. The pipeline output results of each parallel computing unit are collected, verified, and integrated to output a complete set of multiplication results. This invention achieves breakthroughs in hardware resources, computational latency, and batch throughput through the collaborative design of nested recursive simplification, pipeline reuse, and parallel architecture, providing an efficient solution for high real-time and high-parallelism digital computing scenarios.

This utility model relates to the field of compressor technology and discloses a fully enclosed single-stage centrifugal compressor, including a lower casing, an upper casing, an impeller, a rotating main shaft, and a motor stator. An impeller and a thrust disc are provided on one side of the rotating main shaft. The main body of the rotating main shaft is rotatably connected to the upper and lower casings via radial bearings on both sides, and the main body of the rotating main shaft is rotatably mounted in the motor stator, which is mounted on the lower casing's internal fixed seat. The upper and lower casings are connected by welding. A refrigerant inlet is provided on the side of the lower casing, and a refrigerant outlet is provided on the volute. This utility model uses refrigerant as the compressor's compression medium. The refrigerant enters through the lower casing inlet, passes through the lower and upper casings, is compressed by the impeller, and flows out through the outlet. Simultaneously, the refrigerant cools the motor stator, reducing the number of compressor parts and improving heat dissipation efficiency. Furthermore, the bearings used in this utility model are air-suspended or magnetic-suspended bearings, eliminating the need for lubrication and increasing energy efficiency.

The invention discloses a power supply circuit and power supply equipment. The power supply circuit comprises a first voltage conversion module, a first switch module, a second voltage conversion module, a second switch module and a control module. The first end of the first switch module is coupled to the output end of the first voltage conversion module, and the second end of the first switch module is coupled to the first output end of the power supply circuit; the first end of the second switch module is coupled with the output end of the first voltage conversion module, and the second end of the second switch module is coupled with the output end of the second voltage conversion module; the control module is respectively coupled with the first voltage conversion module, the first switch module, the second voltage conversion module and the second switch module; when the control module responds to the first output end and is coupled with the first load, the control module controls the first switch module and the second switch module to be switched on, so that the first voltage conversion module and the second voltage conversion module jointly supply power to the first load. In this way, the hardware cost of the power supply circuit is effectively reduced.

The application provides a display panel and a display device, and relates to the display field, and is used for preventing peep display performance. The display panel comprises a display area and a non-display area surrounding the display area, a substrate, a display layer located on one side of the substrate and comprising a pixel area and a non-pixel area, wherein the pixel area comprises a sub-pixel, an encapsulation layer located on the side, away from the substrate, of the display layer, a filter layer located on the side, away from the substrate, of the encapsulation layer and comprising a filter part and a light shielding part, wherein the filter part overlaps the pixel area in the direction perpendicular to the plane where the substrate is located, and the light shielding part overlaps the non-pixel area, at least one blocking layer located on the side, away from the substrate, of the filter layer, wherein the blocking layer has an opening, the opening overlaps the pixel area in the direction perpendicular to the plane where the substrate is located, and the blocking layer overlaps the non-pixel area, and a first planar layer located between the display layer and the blocking layer and covering the display area.

The invention discloses a concrete formwork gap adjusting device and method, and relates to the field of concrete formwork installing.The concrete formwork gap adjusting device comprises a fixing mechanism, a first longitudinal beam, a plurality of adjusting plates and an adjusting mechanism, the fixing mechanism is detachably arranged on the lower surface of the first longitudinal beam and the lower surface of the adjusting mechanism and used for fixing the first longitudinal beam and the adjusting mechanism on a concrete formwork, and the adjusting plates are detachably arranged on the first longitudinal beam and the adjusting mechanism; one ends of the adjusting plates are arranged on the side, facing the adjusting mechanism, of the first longitudinal beam, and the other ends of the adjusting plates are movably inserted into the adjusting mechanism. The upper end and the lower end of the concrete formwork can be synchronously adjusted when the concrete formwork is adjusted, and the situation that the vertical distance of the concrete formwork is inconsistent is avoided.

The present application relates to the technical field of intelligent signal processing, and more particularly to an acoustic emission nondestructive testing method based on acoustic emission event clustering, comprising the following steps: step 1, attaching a sensor array to the outer wall of a water treatment reaction vessel, performing arrival consistency verification on candidate events to eliminate interference events, and intercepting the event waveform segment of the effective acoustic emission event; step 2, transmitting the event waveform segment to a scatter transform application specific integrated circuit (ASIC) through a field programmable gate array (FPGA), and outputting an acoustic emission event feature vector; and step 3, splicing the acoustic emission event feature vector and the acoustic emission source position coordinates into a joint description vector after normalization in a sliding time window through an edge processor. The present application realizes full-link online processing from sensing acquisition to damage early warning, effectively improving the positioning accuracy, feature stability and early warning timeliness of micro-crack monitoring of the water treatment reaction vessel.

The utility model relates to the technical field of engine connecting rods, and discloses a dustproof engine connecting rod bolt which comprises a first end, a second end, a connecting rod and a bolt body, the annular first end and the annular second end are arranged at the two ends of the connecting rod respectively, the first end is connected with a connecting rod at the position of a piston in an engine, and the second end is connected with the bolt body. The second end is connected with a connecting rod body in an engine, the piston moves up and down to drive the connecting rod to do stroke motion, meanwhile, the first end and the second end rotate with the connecting rod connected with the first end and the second end respectively, and heat conduction layers are arranged on the inner sides of circular rings of the first end and the second end. Annular air bags are arranged on the upper side and the lower side of the heat conduction layer, the air bags are made of elastic materials and are filled with gas which is prone to thermal expansion and is not fully filled, the bolt body is arranged at the second end, sealing is achieved through the wrapping effect of the air bags on the connecting position, and the situation that dust enters the moving connecting position, and consequently parts are abraded is avoided.

The utility model relates to a gluing device which comprises a machine body, a plurality of laminating plates which are arranged on the machine body and arranged in a laminated mode and a driving mechanism which drives the laminating plates to compress or separate, laminating spaces are formed between the laminating plates, and a loading box is arranged at the end, away from the ground, of the machine body. The machine body is provided with a heat energy generator capable of adding heat energy into the pressing plate, the driving mechanism comprises a driving source, one end of the driving source is provided with a driving rod capable of being driven by the driving source to ascend and descend, and the driving rod is connected with a lifting frame. A conveying belt structure capable of promoting gluing objects located on the pressing plates to move from the external input platform to the external output platform is arranged on each pressing plate in a winding mode, and a positioning structure for selecting the pressing spaces and a second positioning structure for synchronously lifting the pressing plates located below the selected pressing spaces are arranged on the lifting frame. The conveying device has the beneficial effects that the belts are arranged on the laminated plates for conveying, so that the conveying efficiency is high.