11results about How to "Efficient energy transfer" patented technology

The invention relates to a linear actuator with power-off self-locking and constant supporting force. The linear actuator comprises a driving assembly, a gas spring unit, a braking assembly and a planetary roller lead screw pair. The driving assembly converts electric energy into rotating kinetic energy to drive the actuator to operate. The air spring unit provides constant supporting force through a built-in high-pressure air cavity, and the pressure is adjusted through an inflation valve so as to dynamically adjust the supporting force. The braking assembly realizes power-off self-locking through a movable permanent magnet and a liquid sealing structure; the planetary roller lead screw pair converts rotation kinetic energy of the driving assembly into linear motion. The technical problems that an existing linear actuator is high in energy consumption, unstable in supporting force and lack of a self-locking function are solved.

The invention belongs to the field of organic electroluminescence, and particularly relates to a fused-ring carbazole tetradentate metal platinum (II) complex, an electronic device and application of the fused-ring carbazole tetradentate metal platinum (II) complex. According to the invention, interaction among molecules is reduced through introduction of diphenyl, and a ring-fused carbazole system is introduced to different positions of carbazole, so that the component proportion of a localized state (LE) in an excited triplet state of the cyclotetradentate platinum (II) complex is increased, the cyclotetradentate platinum (II) complex has low acromion, and the molecular luminescence color purity of the material is improved. The material provided by the invention has good chemical stability and thermal stability, and is easy to prepare an evaporation type OLED device. After being combined with a fluorescent doping material, the material can balance hole and electron transmission, so that energy transmission between a subject and an object is more efficient. The current efficiency and the service life of the organic electroluminescent device manufactured by using the compound as a luminescent layer are obviously improved, and the lighting voltage is obviously reduced. Especially, the photochromic purity of the device can be improved by jointly applying the compound and a phosphorescent sensitized boron-containing compound.

The invention belongs to the technical field of engines, and discloses a rotary detonation combustion chamber which comprises a combustion chamber body, the combustion chamber body comprises a combustion chamber shell composed of an inner sleeve structure and an outer sleeve structure, a fluid channel is formed in the combustion chamber shell, and the inlet end of the fluid channel is a combustion chamber air inlet; the fluid channel comprises a combustion chamber throat section, a first expansion section, a U-shaped groove section, a second expansion section and a combustion chamber downstream straight section which are sequentially arranged. One end of the combustion chamber throat section communicates with the combustion chamber air inlet. And the U-shaped groove section comprises a U-shaped groove fillet section and a U-shaped groove straightway section which are arranged in sequence. The whole U-shaped groove fillet section is of a topological fluid diode structure, and one end, close to the first expansion section, of the topological fluid diode structure is of an arc-shaped structure. The topological fluid diode structure provides a new view angle and a new solution for optimization of the combustion chamber, and design and development of the more efficient and more stable combustion chamber are promoted.

The invention relates to the technical field of optical functional materials, in particular to transparent biphase glass ceramics for rare earth induction associated crystallization, a preparation method and application. According to the preparation method, SiO2, ZnF2 and KF are taken as matrix glass raw materials, rare earth and transition metal ions are taken as optical activity doping ions, precursor glass is prepared through melting, and the transparent biphase glass ceramic is obtained through annealing, heat treatment and associated devitrification. The transparent dual-phase glass ceramic prepared by the invention contains KYb3F10 nanocrystals and KZnF3 nanocrystals, and compared with glass ceramic containing K2SiF6 and ZnF2 nanocrystals, the bandwidth luminous efficiency of the transparent dual-phase glass ceramic is improved by more than 100 times; the method provides good reference for preparation of two-phase glass ceramics of more different systems, and has important application prospects in the fields of broadband optical fiber amplifiers and tunable optical fiber lasers.

The invention relates to the technical field of vibration measurement, and discloses a wireless energy transmission vibration sensor for vibration monitoring of a generator runner, which comprises a heat insulation and conduction protection mechanism and a transmitting circuit module, an acquisition mechanism, a wireless module, a receiving circuit module, a signal processing unit and a magnetostriction actuator are arranged in the heat insulation and conduction protection mechanism, the wireless module is arranged at the output end of the acquisition mechanism, and the receiving circuit module is arranged at the input end of the wireless module and the input end of the signal processing unit. According to the wireless energy transmission vibration sensor for generator runner vibration monitoring, the resonant frequency can be controlled through the magnetostriction actuator when the sensor is used, that is, the coupling capacitance is adjusted through the magnetostriction actuator according to the characteristic that the magnetostriction rod is stretched or shortened in the magnetization direction when being magnetized, and then the resonant frequency is adjusted; therefore, self-tuning is realized, and high-efficiency transmission is ensured.

The utility model discloses a movable positioning mechanism. The movable positioning mechanism comprises a base; the positioning pin is arranged on the base; and the driving mechanism is fixed on the base, is connected with the positioning pin and drives the positioning pin to move along the length direction of the positioning pin. According to the utility model, the flexible positioning of the positioning pin can be automatically realized, different workpieces and application scenes can be adapted, the applicability is wide, and high-precision positioning, motion control and high-efficiency energy transfer are realized.

The invention relates to rare earth element and titanium element co-doped gallium oxide fluorescent powder as well as a preparation method and application thereof. The chemical formula of the fluorescent powder is Ga2O3: xM / yTi, m is a doped rare earth element and is selected from one of Er and Eu, and x ranges from 0.005 to 0.1; ti is a doped transition metal element, and the value range of y is 0.005-0.1. When the rare earth element is Er, compared with Er element single-doped gallium oxide fluorescent powder, the Er element and Ti element co-doped gallium oxide fluorescent powder provided by the invention has the advantages that the luminous intensity of photoinduced green light and red light is respectively improved by 1900 times and 530 times, and the comprehensive performance of the fluorescent powder is remarkably improved. The preparation method provided by the invention is simple in process, the used raw materials are easy to obtain, low in price and non-toxic, and the preparation method has a relatively great application prospect.

This utility model provides an electromagnetic isolation circuit and an electrical energy measurement device, relating to the technical field of electronic circuits. It includes: a filtering module, an isolation transformer drive module, an EMI suppression module, a transformer module, a rectifier module, and a voltage regulator module. The filtering module filters a first power supply. The isolation transformer drive module generates a primary-side power supply based on the filtered first power supply, which is then input to the transformer module. The EMI suppression module suppresses common-mode interference on the primary-side power supply. The transformer module converts the suppressed primary-side power supply into a secondary-side power supply with a preset ratio. The rectifier module rectifies the secondary-side power supply to obtain a rectified power supply. The voltage regulator module regulates the rectified power supply to obtain a second power supply, which powers the load. This invention solves the technical problem of instability in isolation circuits under strong magnetic environments, achieving high stability and safety.

The present application relates to the technical field of steam boiler, disclose a kind of photo-thermal and coal-fired unit coupling system and its control method, comprising: solar module and high-temperature heat pump module and molten salt heat storage module and coal power coupling module connected in sequence;Solar module includes solar light condensing and heat collecting unit and solar steam generating unit, output steam is transported to high-temperature heat pump module by energy transport module;High-temperature heat pump module includes steam-air heat exchanger and molten salt-air heat exchanger, steam enters high-temperature heat pump module by steam-air heat exchanger, and then is transported to molten salt heat storage module by molten salt steam heat exchanger;Molten salt heat storage module is connected with coal power coupling module by its internal molten salt heat storage steam generating unit, and the superheated steam generated by it is connected with coal-fired boiler main steam pipeline.Solve the problem of low thermal efficiency, poor peak shaving flexibility and large energy transmission loss in the prior art, achieve the purpose of efficient energy conversion, reduce coal consumption and small energy transmission loss.

The invention belongs to the technical field of organic electroluminescence preparation, and particularly relates to a tetradentate cyclometalated platinum (II) complex guest phosphorescent material with a biphenyl structure, an electronic device, a device and application of the tetradentate cyclometalated platinum (II) complex guest phosphorescent material. According to the invention, alkyl or aryl is introduced to 3 ', 4 'and 5' positions of 1, 1 'biphenyl to increase steric hindrance, so that red shift or luminescence quenching caused by molecular aggregation can be avoided; the stability of the material can be improved by deuteration on the periphery of the cyclometalated ligand, so that the phosphorescent material disclosed by the invention has good chemical stability and thermal stability and is easy to prepare an evaporation type OLED (Organic Light Emitting Diode) device. The current efficiency and the service life of an organic light-emitting device manufactured by taking the complex as a light-emitting layer material are obviously improved, and the organic light-emitting device has a great application prospect in the fields of OLED display and illumination.

The invention relates to the technical field of organic silicon materials, in particular to a dynamic two-dimensional organic silicon polymer as well as a preparation method and application thereof. The dynamic two-dimensional organosilicon polymer provided by the invention has a reversible covalent bond (C = N bond), and compared with irreversible covalent bond organosilicon, the dynamic two-dimensional organosilicon polymer can improve the cyclic utilization of a material while ensuring the performance and stability of the material; the dynamic two-dimensional organosilicon polymer provided by the invention combines the structural advantages of a polymer and a two-dimensional nano material, and realizes efficient in-plane charge and energy transfer while ensuring the mechanical properties of the material. When the dynamic two-dimensional organosilicon polymer provided by the invention is used for preparing an electrolyte membrane, the conductivity, the mechanical property and the cycling stability of the electrolyte membrane can be improved, so that the performance of a battery is improved, and the service life of the battery is prolonged.