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83results about How to "No need to consume energy" patented technology

Coin distinguishing apparatus and its method for distinguishing

The invention relates to a coin identifying or discriminating device and method, especially relating to the discrimination of the true coins from the false coins. The method vertically slides the tested coin along a guiding groove down onto a substrate, collects a sound signal emitted by the coin as striking the substrate through sound sensor, directly sends the sound signal or sends the sound signal amplified by a power amplifier to a frequency spectrum analyzing device for making frequency spectrum analysis so as to obtain an inherent frequency of the tested coin, and compares the inherent frequency with a standard data in a frequency spectrum standard memory for making frequency spectrum discrimination; then uses a pressure sensor to measure the weight of the tested coin and sends the generated force signal amplified by a power amplifier into a weight analyzing device and calculates to obtain the weight of the tested coin and compares it with a standard data in a weight standard memory for making weight discrimination; then by an operational policy maker, synthetically analyzes and obtains the final discrimination result. The discriminating device has simple structure, lower manufacturing cost, and high identifying accuracy, applied to identification of various coins and having a wide application prospect.
Owner:UNIV OF SCI & TECH OF CHINA

Solar-sail spacecraft structure provided with distributed satellites for traction

The invention discloses a solar-sail spacecraft structure provided with distributed satellites for traction. The solar-sail spacecraft structure provided with the distributed satellites for traction is composed of a central spacecraft, the distributed satellites and a square solar sail film. The distributed satellites are fixedly connected with the central spacecraft through connection and separation devices, and the distributed satellites are ejected to be separated from the central spacecraft through the connection and separation devices, so that the relative speed is obtained; and tied ropes are pulled to be controlled at the same time, so that the solar sail film is pulled out and unfolded. After the solar sail film is unfolded in place, a system is made to spin up through active acting force of the distributed satellites, and tensile force for keeping the solar sail film flat is generated. The multiple distributed satellites are used for providing traction force in the unfolding process, providing centrifugal force in the on-orbit flight process and serving as a distributed effective loading platform when a detection task is carried out. A thin-film solar cell and a liquid crystal reflection device are pasted onto the solar sail film; and electric energy converted by the solar cell is stored in a power source management system, serves as electric energy required for operation of satellite-borne equipment and is used for achieving posture control of the central spacecraft.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Energy-saving variable-frequency industrial electric appliance control cabinet

The invention relates to an energy-saving variable-frequency industrial electric appliance control cabinet, and belongs to the frequency conversion control cabinet technical field. The energy-saving variable-frequency industrial electric appliance control cabinet comprises a cabinet body, one side of the cabinet body is provided with an opening and a door body closing the opening, cooling water pipes are respectively fixed on two side inner walls of the cabinet body, the side wall of the cabinet body far away from the opening is provided with a ventilation grating communicated with the outside, and the inner wall of the cabinet body far away from the opening is fixed with a heat conduction sheet; a circulating water tank is arranged at the bottom of the cabinet body, two ends of the cooling water pipe are respectively communicated with the circulating water tank, and circulating water pumps are respectively arranged at the water inlet end and the water outlet end of the cooling water pipe; the energy-saving variable-frequency industrial electric appliance control cabinet further comprises a temperature detection module and a temperature control module; the temperature detection module detects the temperature in the cabinet body, the temperature control module recognizes and judges a temperature detection signal, and when the detected temperature value is larger than a water cooling temperature set value, the temperature control module controls the circulating water pump to be started to work. In the daily use process, the heat dissipation efficiency of the interior of the cabinet body is high, and energy is saved.
Owner:ZHEJIANG ZHONGKONG XIZI TECH

Four-stroke free piston internal combustion engine

The invention discloses a four-stroke free piston internal combustion engine. The four-stroke free piston internal combustion engine comprises a cylinder body, an air inlet valve set, a vent valve set, a spraying nozzle set, a piston set, a connecting rod set, a power output block, a position sensor and a control unit; the cylinder body comprises four air cylinders; the air inlet valve set comprises four electronic control air inlet mechanisms which are located in the above four air cylinders; the vent valve set comprises four electronic control vent mechanisms which are located in the above four air cylinders; the spraying nozzle set comprises four electronic control spraying nozzles which are located in the above four air cylinders; the piston set comprises four pistons which are arranged in the four air cylinders; the connecting rod set comprises four connecting rods which are connected to the above four pistons; the power output block is connected to the above four connecting rods, and a unique motion component of an internal combustion engine system is jointly formed and used for externally providing straight-line reciprocated power; the position sensor is used for determining the real-time position of the above motion component; and the control unit is electrically connected to the air inlet valve set, the vent valve set, the spraying nozzle set and the position sensor.
Owner:CHINA SHIP DEV & DESIGN CENT

Conducting concrete using polyaniline as conducting phase and preparation method thereof

The invention belongs to the field of a composite material, and particularly relates to conducting concrete using polyaniline as a conducting phase and a preparation method thereof. The conducting concrete using polyaniline as the conducting phase is prepared from the following ingredients in parts by weight: 100 to 200 parts of cement, 100 to 200 parts of sand, 15 to 150 parts of conducting polyaniline, 0.15 to 1.5 parts of dispersing agents and 50 to 200 parts of water. The preparation method is simple. Firstly, the conducting polyaniline, the dispersing agent and the water are mixed according to the weight parts; then, the ball milling dispersion is performed; next, all dispersing liquid is sufficiently stirred and mixed with the weight parts of cement and sand; next, the mixture is poured into a template; the processes of mold dismounting, maintaining, drying and the like are performed; finally, the conducting concrete using polyaniline as the conducting phase is obtained. The conducting concrete using polyaniline as the conducting phase prepared by the method and the raw material proportion provided by the invention has the advantages that the electric resistivity can be reduced to 69.0 ohm.cm; the voltage withstanding intensity can reach 35.7MPa; the conducting concrete is completely applicable to industrial production.
Owner:HUBEI UNIV

Steam and power dual-power-drive fan structure capable of achieving automatic switching

The invention discloses a steam and power dual-power-drive fan structure capable of achieving automatic switching. The problems that a fan drive structure is complex, single gas source drive or motordrive is adopted, at most of time, normal running needs cannot be met, and normal production is affected are solved. Two permanent magnet couplings are selected according to the actual industry and mining, when the permanent magnet couplings work, a controller controls an executor motor to work, an output shaft of the executor motor rotates and drives a pushing disc to rotate through a swing rod and a connecting rod, a pushing convex strip slides over a convex block from thin to thick, a sliding sleeve and a shaft sleeve are pushed to move in the direction away from the pushing disc, a permanent magnet disc gets close to a conductor disc, the air gap between the conductor disc and the permanent magnet disc is reduced, a steam turbine output shaft or electric motor output shaft can drive afan rotating shaft to rotate, the controller controls the rotation angle of the output shaft of the executor motor to achieve output torque adjusting between 0 and 100%, and engaging and disengaging between a steam turbine and a fan and between an electric motor and the fan can be achieved.
Owner:杭州科晟能源技术有限公司

Adjustable high-vibration-isolation-performance automobile seat suspension structure

The invention provides an adjustable high-vibration-isolation-performance automobile seat suspension structure and belongs to the field of vehicle seats. The structure comprises a lower installation board, an upper installation board, a height adjusting component, a lower movable board, a working point adjusting component, an upper movable board, a quasi-zero rigidity component and an installationsupport. The height adjusting component can make a seat adapting to a driver and a passenger in different heights and is arranged on the lower installation board so as to make the lower movable boardvertically ascend and descend. The working point adjusting component can make the seat adapting to the driver and the passenger in different weights and is arranged on the lower movable board so as to make the upper movable board vertically ascend and descend. The installation support is fixed to the upper installation board. The quasi-zero rigidity component is composed of a positive-rigidity spring and a negative-rigidity mechanism, the two ends of the positive-rigidity spring act on the upper movable board and the installation support, and the two ends of the negative-rigidity mechanism are connected to the lower movable board and the installation support. The quasi-zero rigidity characteristic is achieved near a set working point, low-frequency, medium-frequency and high-frequency vibration can be well isolated, and the structure can adapt to the driver and the passenger in different weights and heights.
Owner:CHONGQING UNIV

Fruit fly trap

The invention discloses a fruit fly trap. The fruit fly trap comprises a transparent bottle body, a bottle cover and a windmill device; a horizontal fixing plate is arranged in the middle in the bottle cover, an insect inlet opening is formed in the side face, located on the lower portion of the fixing plate, of the bottle cover, the windmill device comprises fan blades, a horizontal transmissionrod, a driving helical gear, a vertical transmission rod, a driven helical gear and a color plate, the horizontal transmission rod penetrates through the bottle cover, is located on the side face of the upper portion of the fixing plate and stretches into the bottle cover, the horizontal transmission rod is rotatably connected with the fixing plate, the fan blades are fixedly installed at a stretch-out end of the horizontal transmission rod, the driving helical gear is fixedly installed at a stretch-in end of the horizontal transmission rod, the vertical transmission rod is installed on the fixing plate and rotatably connected with the fixing plate, the driven helical gear is fixedly installed at the upper end of the vertical transmission rod, the driving helical gear is in transmission connection with the driven helical gear, and the color plate is fixedly installed on the side face of the lower portion of the vertical transmission rod. According to the fruit fly trap, rotation of thecolor plate can be achieved by means natural wind power, and the trapping effect of fruit flies is achieved.
Owner:张敬
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