102results about How to "Reliability impact" patented technology

The invention discloses a pressure control method of an air conditioning system. The pressure control method comprises the following steps: S1, respectively comparing detected outdoor ambient temperature and exhaust pressure of a compressor with a preset temperature range and preset pressure, judging whether to reduce the exhaust pressure or not according to comparison results, and if so, starting the step S2; S2, reducing the rotational speed of an indoor fan during refrigeration and reducing the rotational speed of an outdoor fan during heating; S3, comparing detected degree of superheat of inhaled air or exhaust pressure with preset degree of superheat or preset exhaust pressure, judging whether to withdraw from the control of reducing the exhaust pressure or not according to the comparison results, and if so, starting the step S4; S4, stopping the reduction of the rotational speed of the indoor fan during refrigeration and stopping the reduction of the rotational speed of the outdoor fan during heating. Through the adoption of the pressure control method of the air conditioning system disclosed by the invention, the exhaust pressure of the system can be controlled within a certain range; furthermore, the method is low in cost and good in effects, and cannot impact the reliability of the air conditioning system.

The invention provides a method for predicting the operational reliability of a power distribution network based on an ARIMA model, and the method comprises the steps: predicting the number of times of monthly power failures of a user through building the ARIMA model; enabling an unstable element failure time sequence to be converted into a stable time sequence, and then carrying out the regression of the lagged value of a dependent variable and the present value and lagged value of a random error term to build a user monthly power failure time model; sampling a shutdown point according to the prediction results; considering real-time load operation conditions; building a fault mode impact table based on a TLOC rule and a PLOC rule; calculating the system recovery time for the shutdown of equipment at each time, and finally obtaining a yearly reliability index. The method proposed by the invention guides the planning, design, operation and maintenance of a future power grid effectively and accurately, improves the accuracy of prediction and estimation of the operational reliability of the power distribution network, achieves the stable operation of the power distribution network, reduces the frequency of power failures, and reduces the power failure range.

The invention discloses a method for testing interface bond behavior of CFRP (carbon fiber reinforced polymer) cloth-concrete based on a beam specimen. The method comprises three steps of preparing a test specimen, arranging a test point and loading a test. The test specimen manufactured in the first step is the beam specimen and comprise two concrete test blocks, which are arranged at left and right and symmetric in shape; the two concrete test blocks are inverted T-shaped concrete test blocks; the upper parts in the middle of the two concrete test blocks are connected by a steel hinge; the steel hinge is divided into left and right halves; and the left and right halves are respectively adhered to the concrete test block at the corresponding side, and have the rotation ability. Compared with the traditional double shear test method for testing the interface bond behavior of the CFRP cloth-concrete, the effect of asymmetric loading on the data reliability is avoided; the method has a unique advantage of high accuracy of the test result; and the accuracy and the creditability of the detection result are improved.

The invention discloses plasma 3D printing remanufacturing equipment and method for a train wheel. The plasma 3D printing remanufacturing equipment consists of a monitoring system, a plasma beam processing system, a machining device for machining a train wheel to be repaired, a triaxial moving mechanism used for driving the machining device to move and a horizontal printing platform used for placing the train wheel to be repaired, wherein the plasma beam processing system consists of a plasma generator, a printing position adjusting device, an air supply device and a powder feeder; and the monitoring system comprises a horizontal movement controller, a temperature detection unit, a distance detection unit, a printing distance adjustment controller and a rotation controller, and the temperature detection unit and the printing distance adjustment controller constitute a temperature adjustment and control device. The plasma 3D printing remanufacturing method comprises the following steps: firstly, detecting defects of the train wheel; and secondly, repairing the train wheel. The plasma 3D printing remanufacturing equipment is reasonable in design, simple and convenient to operate, high in efficiency and good in using effect, the repair process is directly carried out in the atmospheric environment without a closed molding room, the repaired train wheel is good in quality, and the repair efficiency is high.

The invention relates to a control method for an oil bleeding reduction device of a rotary compressor and application thereof; the oil bleeding reduction device of the rotary compressor comprises a motor arranged in a shell body of the rotary compressor and a compression component connected with the motor, wherein, the compression component comprises a cylinder, a sliding vane, a crank shaft, a main bearing and a supplementary bearing; the main bearing and the supplementary bearing are used for supporting the crank shaft; the crank shaft is internally provided with a vertical core of an oil pool opening facing to the bottom of the rotary compressor; the vertical core comprises a lower crank shaft vertical core and an upper crank shaft vertical core connected with the lower crank shaft vertical core; the upper crank shaft vertical core is arranged at the upper end of the crank shaft; a long bearing sheathed with the crank shaft is arranged above the main bearing; an inner circular groove is arranged around the upper part of the long bearing circumferentially; the crank shaft arranged at the upper part of the lower crank shaft vertical core is provided with a first cross bore; one end of the first cross bore is open in the lower crank shaft vertical core, while the other end thereof is open in the position of the inner circular groove; the inner diameter of the top of the long bearing positioned above the inner circular groove is 10 microns to 20 microns larger than that of the long bearing.

The invention provides an IGBT short circuit protection circuit and method, an IGBT driver and an IGBT circuit. The IGBT short circuit protection circuit comprises a drive current detection unit, used for detecting the drive current flowing through an IGBT gate; a comparison unit, used for comparing the drive current with reference current and outputting a comparison result; and a protection unit, used for determining whether to start short circuit protection of the IGBT according to the comparison result. According to the technical scheme, the drive current flowing through the IGBT is detected to control the self locking of the IGBT drive circuit, so as to improve the reliability of the short circuit protection of the IGBT.

The invention discloses a solid-state disk error correction method combining an error detection code with an error correction code. The method comprises the following steps of (1) before data is written in a solid-state disk, encoding original data of flash pages, and storing the data in a storage unit of the solid-state disk; and (2) detecting error states of the flash pages in the storage unit by using error detection code decoding operation, directly reading the flash pages without errors, and performing error correction on the flash pages with errors by using low-density parity-check code (LDPC) decoding operation. According to the method, the flash pages can be subjected to error detection by using error detection code cyclic redundancy check (CRC) firstly when the error rates of the flash pages are very low in an early use stage of the solid-state disk; the detected pages without the errors are directly read without being subjected to the LDPC decoding process; and the detected pages with the errors are subjected to LDPC decoding-based error correction.

The invention provides a hinge and a cooking device. The hinge comprises a base, a central shaft, a first spring, a second spring and a first connecting rod, wherein the base is fixed on a box body, a guiding slot is formed in the base; one end of the central shaft is mounted in the guiding slot in a sliding manner, and a position limiting part is arranged on the other end of the central shaft; the first spring and the second spring are arranged on the central shaft in a sleeving manner, can move along the axis of the central shaft, and are supported between the base and the position limiting part; the first connecting rod is connected with each of a door body and the central shaft. According to the hinge provided by the invention, the first spring and the second spring are arranged on the central shaft, when the door body is opened, the central shaft on the hinge slides in the guiding slot in the base, the first spring is compressed by the position limiting part, and the second spring is compressed when the door body is opened to a certain angle, so that the resistance for opening the door body is increased, the door body can be prevented from dropping quickly, meanwhile, the door body can be avoided from being quickly closed due to the pull force of the first spring, and the application reliability of the cooking device can be ensured.

The invention provides electronic equipment and an electronic equipment control method, the electronic equipment comprises a first side and a second side which are arranged back to back, and a frame is arranged between the first side and the second side; A display module is arranged on the first side, at least part of the display module can transmit light, and a gap is formed between the display module and the frame; A first light emitting device, a second light emitting device and a light receiving device are arranged in the electronic device., The first light emitting device and the light receiving device are both arranged below the display module and arranged corresponding to the light-transmitting display area of the display module, the first light emitting device emits light signals outwards through the light-transmitting display area, and the second light emitting device emits light signals outwards through the gap. According to the electronic equipment provided by the invention,the influence of distance detection on the screen reliability and the influence on the screen-to-body ratio can be reduced.

The invention relates to an encapsulation structure for an MEMS (micro-electromechanical system) variable optical attenuator. The encapsulation structure comprises a focusing lens, a tail fiber sleeve and an optical chip, wherein the optical chip is manufactured by adopting the MEMS, the tail fiber sleeve is fixedly arranged in a hollow cylindrical magnet through bonding glue for forming a magnetic assembly 1, one end of the focusing lens is a light signal incident surface, the other end of the focusing lens is provided with a light reflecting surface, the focusing lens is fixedly arranged in the other hollow cylindrical magnet through bonding agents, the optical chip is fixedly arranged on the end part, used for being sucked with the magnetic assembly 1, on the hollow cylindrical magnet through bonding agents, and a magnetic assembly 2 is formed; the magnetic assembly 1 and the magnetic assembly 2 which are in a mutual magnetic suction state and are reinforced through the bonding agents form a variable optical attenuator assembly, the optical attenuator assembly is arranged in a hollow external protecting sleeve, in addition, two ends of the external protecting sleeve are filled and encapsulated by bonding agents, and the variable optical attenuator is formed. The invention aims at providing the encapsulation structure and an encapsulation method for the MEMS with the advantages of miniaturization, low cost and high reliability.

The invention discloses a stacked packaging structure, which comprises: a first chip, wherein the first chip is inversely attached to the first rewiring layer, and a welding pad of the first chip is provided with a bump; a bottom layer filling film covering the front surface of the first chip; a first conductive channel disposed around the first chip; a first plastic package layer wrapping the first chip and the upper part of the first conductive channel; the first rewiring layer which is formed on the back surface of the bottom layer filling film and is electrically connected to the first chip and the first conductive channel; a first dielectric layer covering the surface and a gap of the first rewiring layer; a second chip right attached to the surface of the first plastic package layer;a second conductive channel disposed around the second chip; a second plastic package layer wrapping the second chip and the second conductive channel; a second rewiring layer formed on the surface of the second plastic package layer and electrically connected to the second chip and the second conductive channel; and a second dielectric layer covering the surface and a gap of the second redistribution layer.

The invention provides a high-temperature-resistant and rainfall-erosion-resistant wave transmission antenna housing and a preparation method thereof. The high-temperature-resistant and rainfall-erosion-resistant wave transmission antenna housing comprises an antenna housing body and a rainfall-erosion head, wherein the rainfall-erosion head is connected to the antenna housing body through a high-temperature-resistant wave transmission adhesive; the high-temperature-resistant wave transmission adhesive comprises epoxy-modified organic resin, mica powder, fumed silica, a silane coupling agent and an imidazole curing agent; the mica powder, the fumed silica, the silane coupling agent and the imidazole curing agent are sequentially added to the epoxy-modified organic resin. According to the high-temperature-resistant and rainfall-erosion-resistant wave transmission antenna housing, a special intermediate-temperature normal-pressure curing type high-temperature-resistant wave transmissionadhesive is adopted, so that the rainfall erosion head and the housing body can be adhered in high temperature environment; the temperature resistance and reliability of the rainfall erosion head andthe housing body in connection are ensured; and the influence of the mounted rainfall erosion head on the electric performance of a wideband antenna housing can be overcome.

The invention provides a lightweight ball seat. The seat comprises a lower joint, a slip, a sealing member and a central tube, the central tube is in a truncated cone shape, the sealing member and theslip sequentially sleeve the outer side of one end with a smaller outer diameter of the central tube in a direction in which the outer diameter of the central tube is reduced, one end of the sealingmember abuts the one end of the slip, and the end of the one end with a smaller outer diameter of the central tube is located in the slip; the end of the lower joint abuts the other end of the slip, and the lower joint is internally provided with a sealing tool connecting structure; the sealing member adopts a two-stage structure, and the hardness of the first-stage sealing member is smaller thanthe hardness of the second-stage sealing member. The ball seat is provided with the two-stage sealing member, and improves the reliability of the sealing during work, the design of the ball seat is compact and short, the material is a lightweight magnesium-lithium alloy material, the drilling efficiency is improved, after the work is finished, it is easy to return out, and the risk of clogging a wellbore is eliminated.

The invention discloses an integrated structure of an LDMOS and a JFET and a manufacturing method thereof. The JFET uses a drift region and a drain region, which are also the drift region and the drain region of the LDMOS. A first polysilicon layer is connected in an end to end mode to form a closed first polysilicon encircling structure. A source region and a channel region of the LDMOS respectively circle around the outer side of the first polysilicon layer to form a source region encircling structure with an opening. A gate electrode region and a source region of the JFET form in a deep N-well outside an opening position, so that a gate electrode region of the JFET and the channel region of the LDMOS are separated. The invention also discloses a manufacturing method for the integrated structure of the LDMOS and the JFET. According to the invention, high-voltage resistance of the JFET can be realized; meanwhile, the reliability of the LDMOS device can be raised; and relatively low cost is realized.

The invention discloses a sheet clamp which comprises a clamp substrate and a clamp supporting frame. The clamp substrate is arranged on the clamp supporting frame. The sheet clamp is further composed of two holders arranged on the clamp substrate. The two holders are respectively provided with a detachable liquid connector, the clamp substrate is provided with multiple glass pressing bases, and the glass pressing bases are provided with glass pressing screws. The detachable liquid connectors arranged on the holders can be replaced according to different displacing fluid, influences of residual liquid on reliability of displacement experiment data are prevented, meanwhile, a glass sheet is fixed through the glass pressing bases and the glass pressing screws arranged on the glass pressing bases so that the situation that images collected at different displacement time periods move and rotate substantially due to the fact that the sheet moves when a displacing fluid guide pipe is replaced can be avoided, and accordingly later image analysis can be more accurate.

The invention relates to an electric vehicle and an integrated powertrain thereof, wherein an end of an output shaft of a motor away from an output bearing is not mounted on an inner wall of a motor cavity through a bearing, so that the number of bearings can be reduced compared with the powertrain in the prior art, thereby simplifying a structure and reducing a cost. In addition, one end of the motor output shaft extends into the reducer chamber and is splined with the reducer input shaft. In one aspect, since the second input bearing is proximate to the motor output shaft, the second input bearing may provide support to the motor output shaft while supporting the reducer input shaft. On the other hand, since the motor output shaft and the reducer input shaft are splined to transmit torque, and the splined connection has a strong radial limiting effect, the motor output shaft and the reducer input shaft can also support each other. Therefore, the reliability of the transmission process will not be affected. It can be seen that the electric vehicle and the integrated powertrain thereof not only reduce the cost, but also take into account the higher reliability.

The invention discloses an array substrate manufacturing method, an array substrate and a display device, belonging to the technical field of display. The manufacturing method comprises steps: forming an oxide active layer on an underlayment substrate, wherein the underlayment substrate comprises a display region and a non-display region; forming a photoresist layer on the oxide active layer; forming an active layer pattern; removing the photoresist layer of the display region; performing plasma surface treatment for the oxide active layer of the display region to increase oxygen content of the oxide active layer of the display region. According to the invention, reliability of thin film transistors of the display region and the non-display region can be guaranteed at the same time.

The precast concrete component production line comprises an operation system, a ferry system and a maintenance system, and materials flow between the operation system and the maintenance system through the ferry system; the operation system comprises a conveying system, a material distribution system and a vibration system; the conveying system comprises a front-end chain type conveying system, a tail-end chain type conveying system and a stepping conveying system; the stepping conveying system comprises a lifting mechanism and a transmission bracket; the front-end chain type conveying system and the tail-end chain type conveying system are each provided with a deviation rectifying device. The production line has the beneficial effects of simple structure, small investment and flexible production; production capacity and production efficiency of a production line can be improved, and labor intensity of workers is reduced; the pouring efficiency and the pouring quality can be improved; the U-shaped prefabricated part ensures the flatness in the foundation pit and improves the installation precision of the operation line. And the deviation rectifying device timely adjusts to ensure the accuracy of the mold position and ensure the mold assembly line working procedure.

The invention relates to an electric vehicle and an integrated powertrain thereof, wherein an end of a reducer input shaft remote from an input bearing is not mounted on an inner wall of a reducer chamber through a bearing, so that the number of bearings can be reduced relative to the powertrain in the prior art, thereby simplifying a structure and reducing a cost. In addition, one end of the reducer input shaft extends into the motor cavity and is splined with the motor output shaft. In one aspect, since the second output bearing is proximate to the reducer input shaft, the second output bearing may provide support to the reducer input shaft while supporting the motor output shaft. On the other hand, since the motor output shaft and the reducer input shaft are splined to transmit torque,and the splined connection has a strong radial limiting effect, the motor output shaft and the reducer input shaft can also support each other. Therefore, reliability of the transmission process is not affected. Accordingly, the electric vehicle and its integrated powertrain not only reduce the cost, but also take into account the higher reliability.