10results about How to "Valid conversion" patented technology

The utility model provides a loudspeaker structure based on vibration sound transmission, which relates to the technical field of electroacoustic conversion devices, and comprises an upper cover assembly, a voice coil assembly, a magnetic circuit assembly and a lower cover assembly, and the surface of the upper cover assembly is provided with a heat dissipation hole I, a positioning hole and a fixing hole. According to the utility model, the magnetic circuit assembly and the voice coil assembly which are modularly designed are matched, an innovative structure that the voice coil is fixed and the magnetic circuit is movable is adopted, an electric signal is directly converted into mechanical vibration to be conducted to a human body, effective conversion from a sound signal to somatosensory vibration is realized, and the limitation that a traditional loudspeaker can only transmit sound waves through air is overcome; the heat dissipation holes and the ventilation grooves arranged in the upper and lower cover assemblies form convection heat dissipation channels, the heat conduction performance of the metal heat dissipation fins is matched, the heat dissipation problem during working of the vibration horn is effectively solved, long-time stable operation of equipment is guaranteed, meanwhile, the elastic supporting structure of the elastic pieces is utilized, vibration loss is reduced, and vibration conduction efficiency is improved.

The utility model provides an energy storage system, and relates to the technical field of power grid management, and the energy storage system comprises an energy storage device, a switching device, and an AC function unit. Wherein the energy storage device is connected with an alternating current port of the energy storage system and is used for alternating current and direct current conversion and electric energy storage; the alternating current function unit is used for providing a supporting operation function for the energy storage system; the AC function unit is connected with the AC port through the switching device, and the switching device is used for controlling the commutation or disconnection of a power supply path of the AC function unit at a target phase. Therefore, the alternating current function unit is used for providing a supporting operation function for the energy storage system, the stability and the reliability of the energy storage system in the operation process are guaranteed, meanwhile, the application scene of the energy storage system is enriched, and the system is particularly suitable for the scene that a single-phase important load is connected to micro-grid energy storage three-phase alternating current.

The application discloses a kind of ship outfitting support positioning system and method, the system includes measured data acquisition device, computing device and adjustable positioning device, computing device is used to identify the first and second reference structure that is not parallel from three-dimensional data, to establish local coordinate system with intersection point as reference, and generate the first distance, second distance and azimuth angle parameter of design installation point, respectively indicating the distance along two reference directions and the angle with the first reference.The reference joint of adjustable positioning device is adjusted to the corresponding distance parameter position when using, the angle is adjusted to azimuth angle parameter, then the joint is attached to the corresponding reference structure, at this time, the rotation center is defined installation point.The application uses ship actual point cloud data, with two non-parallel structures as reference, realizes the effective conversion of point cloud data to installation parameter, improves support installation precision and construction efficiency.

The present disclosure relates to a distributed optical fiber sensing data conversion method and device, and a computer device, computer readable storage medium and computer program product, the conversion method comprising: obtaining original data of distributed optical fiber sensing; performing first transformation processing on the original data to transform it from phase response to strain response to obtain first data; performing second transformation processing on the first data to transform it from strain response to displacement response to obtain second data; performing third transformation processing on the second data to transform it from displacement response to velocity response to obtain third data; and outputting the third data. The present disclosure gradually transforms the distributed optical fiber sensing data from phase response to velocity response to finally obtain physically corresponding data, thereby realizing effective conversion of DAS data response. Moreover, the converted physically corresponding data is free of direct current noise, and the effect of the converted data is highly consistent with the actual response.

This utility model provides an electric vehicle headlight and its ball joint support structure. The ball joint support structure includes an adjusting screw, an adjusting ball joint, and a ball joint bracket. The end of the adjusting screw is connected to a ball head. An inner spherical surface is formed on the inner wall of the adjusting ball joint, and the ball head is snapped into the inner spherical surface. The ball joint bracket is snapped into the adjusting ball joint. An elastic groove is formed on the adjusting ball joint, and multiple elastic grooves are evenly distributed along the axis of the adjusting ball joint. The length direction of the elastic groove is set along its own axial direction. The elastic groove connects the outer wall and the inner wall of the adjusting ball joint. When the ball joint bracket is snapped into the outer wall of the adjusting ball joint, pressure is applied to the adjusting ball joint, reducing the width of the elastic groove, thereby achieving the purpose of maintaining high stability during long-term use.

The invention provides a low-energy-loss power output device, and relates to the field of power output devices. The low-energy-loss power output device comprises an energy conversion device and an input device, the output device is arranged on the rear side of the top end of a supporting plate, the energy conversion device is arranged at the front end of the output device, and the input device is arranged at the front end of the energy conversion device. First fixing frames are fixedly connected to the rear ends of the two sides of the top end of the supporting table respectively, a second fixing frame is fixedly connected to the middle of the top end of the supporting table, the input device comprises a fixing plate, and the bottom end of the fixing plate is fixedly connected with the rear side of the top end of the supporting plate. By arranging the input device, power is effectively and stably input into the device, by arranging the energy conversion device, energy output by the motor is effectively converted, excessive loss of the energy is avoided, by arranging the output device, the energy is effectively expanded, and by arranging the one-way bearing, the stability of the whole device during operation is effectively improved.

The application discloses a middle cylinder assembly of a hydraulic breaking hammer, which comprises a middle cylinder body assembly, a piston and a reversing valve, and a compression chamber, a high-pressure chamber and a variable-pressure chamber are sequentially arranged in the inner hole of the middle cylinder body assembly from left to right, a reversing pressure relief groove and an oil return groove are arranged at the left side of the compression chamber, a reversing groove is arranged between the high-pressure chamber and the variable-pressure chamber or the reversing groove and a high-pressure groove are arranged at the right side of the variable-pressure chamber, the reversing groove and the reversing pressure relief groove are connected with the reversing chamber of the reversing valve through the internal oil passage of the middle cylinder body assembly, the oil return groove is connected with the low-pressure oil passage in the middle cylinder body, the left part of the piston is provided with a pressure relief ring groove for connecting the reversing pressure relief groove and the oil return groove, when the reversing groove and the high-pressure groove are arranged at the right side of the variable-pressure chamber, the high-pressure groove is connected with the high-pressure oil passage in the middle cylinder body, and the right part of the piston is provided with a reversing ring groove for connecting the reversing groove and the high-pressure groove. The middle cylinder assembly can realize the working cycle of the breaking hammer, prolong the service life of the oil seal, improve the support and lubrication of the high-pressure oil film and prevent the piston and the cylinder body from being abraded and strained.

The utility model discloses a molybdenum oxide roasting furnace raw material preheating device which comprises a drying box, a combustion chamber and a smoke filtering heat conduction structure, the drying box is installed at the top end of the combustion chamber, and the smoke filtering heat conduction structure is connected to the drying box and the combustion chamber. Raw materials are accurately drained to the drying box through the current feeding valve and automatically fall into the combustion chamber after being dried, and automation and continuity of raw material treatment are achieved; smoke generated by the combustion chamber is efficiently drained into the mixing reaction inner box through the drainage pipe and the cobweb shunt pipe, and full utilization of the smoke is ensured.

The utility model discloses a mobile locomotive system with a self-adaptive connection function. The mobile locomotive system comprises a mobile locomotive and a transmission connection structure which is arranged on the mobile locomotive and is connected with a gate structure, the transmission connection structure comprises a sliding groove box fixedly arranged on the moving locomotive, a sliding block containing cavity is formed in the sliding groove box, and a vertical arc-shaped through hole communicating with the sliding block containing cavity is formed in the side face, facing the gate structure, of the sliding groove box; one end of the transmission connecting cylinder is fixedly connected to the gate structure, and the other end of the transmission connecting cylinder penetrates through the vertical arc-shaped through hole and extends into the sliding groove box body; and the annular rotating sliding block is rotationally arranged at the end, extending into the sliding groove box body, of the transmission connecting cylinder in a sleeving mode, is located in the sliding groove box body and can slide in the sliding block containing cavity. The transmission connection structure can adapt to changes of the elevation angle and the rolling angle of a gate structure, and the stability of a gate system in the opening and closing process is ensured.

This invention provides a method for predicting the remaining service life of metallic components based on magnetic coercivity, relating to the fields of materials testing and service life prediction. The method first determines the coercivity values ​​in the original and failed states of the material to establish a coercivity reference range. During the component's service life, multi-point in-situ measurements are performed using pulse magnetization to calculate the current service coercivity value, thereby obtaining a continuous damage severity factor. Then, utilizing the nonlinear relationship between the damage severity factor and the cumulative damage life fraction established through accelerated damage testing, and combining it with component geometric features, stress distribution, and environmental parameters, a service life prediction model is constructed. Finally, the remaining safe service life is calculated based on the model and service history, and a confidence interval is provided. Simultaneously, the test data is stored in a database for model updates. This achieves continuous quantitative characterization of damage states and reliable prediction of remaining service life.