34results about How to "Reduce aging costs" patented technology

Disclosed are an aging test method and a device for LED luminaire production. The method includes selecting a highest temperature test point; selecting a lowest temperature test point; arranging temperature sensors at the test points; powering on an LED lamp; testing and recording temperatures at the highest and lowest temperature test points respectively; calculating a measured temperature difference value when recording a highest stable temperature value and a lowest stable temperature value; and comparing the measured temperature difference value with a standard temperature difference value, determining the product to be qualified if the measured temperature difference value is in the range of the standard temperature difference value, and determining the product not to be qualified if the measured temperature difference value is out of the range of the standard temperature difference value. According to the aging test method and device, a scientific method and technology are adopted, zone tests at fixed points and fixed time are performed according to material characteristics of the LED heat dissipation technology, and simultaneously, quality of LED luminaire products is guaranteed and aging cost of the LED luminaire products is greatly reduced.

A method for testing performance of central processor system includes continuously distributing internal memory module by CPU in utilizing character of using operation system to manage internal memory till all internal memories are exhausted, utilizing existed internal memory unit test means to carry out cyclic test on all internal memory block being distributed with internal memory for realizing to have high acquisition ratio of CPU and internal memory at long time in test course so as to raise quality and effect of performance test.

The invention provides a novel fast method for checking DC motor service life. The checking method comprises the following steps: step A, acquiring 10 test motors, dividing the test motors into two groups, step B, conducting increased load test for one group, increasing the blade load, conducting the simulation based on 1.2 times of the rated current, at the moment merely adjusting the torque regulation screw rod is enough to make the motor current reach corresponding level, thus achieving the simulation of the effects caused by the motor overloading condition to the motor service life, step C, increasing the voltage of another motor group to 1.2 times of the rated voltage, raising up the motor RPM to simulate the effects caused by the motor high speed rotation to the motor service life, step D, dissembling the motors passing the tests in step B and C, determining whether the motor service life meets the requirement. The method has the advantages of being simple in operation, convenient in operation, and being able to achieve the motor service life test in a fast and effective manner.

The invention relates to a power supply aging system. A mains supply is inputted to a mains supply complementary inverter through a static switch K, output of the mains supply complementary inverter is connected to input ends of a plurality of aged power supplies U, output ends of the aged power supplies U are connected to the mains supply complementary inverter through a plurality of diodes D, the aged power supplies U are connected in parallel, the static switch K is controlled by a logic circuit, and the mains supply complementary inverter A is used for collecting current, converting direct current into alternating current and modulating phases, electric energy in the circuit is recycled, and proper electric energy is absorbed from the mains supply to supply power. The power supply aging system solves the problem of high cost due to waste of a large amount of electric energy of a traditional power supply aging device.

The invention discloses a battery pack ageing device and method. The device comprises a controller, a first bidirectional DC-DC converter, a second bidirectional DC-DC converter, a first battery pack,a second battery pack and an AC-DC converter; the first bidirectional DC-DC converter, the second bidirectional DC-DC converter and the AC-DC converter are separately in communication connection withthe controller; the AC-DC converter is electrically connected with the first bidirectional DC-DC converter and the second bidirectional DC-DC converter through direct-current buses; the first bidirectional DC-DC converter is electrically connected with the first battery pack; the second bidirectional DC-DC converter is electrically connected with the second battery pack; and the controller controls the AC-DC converter to output preset voltage to the direct-current buses according to output voltages of the first battery pack and the second battery pack, and controls voltage change ranges and current directions of the first bidirectional DC-DC converter and the second bidirectional DC-DC converter to carry out ageing treatment on the first battery pack and the second battery pack. By the device, the utilization rate of electric energy in a battery pack ageing process can be increased, and the ageing cost is reduced.

The invention discloses an energy-saving LED (Light-emitting Diode) lighting power supply aging device. The device disclosed by the invention comprises an alternating current power supply, multiple LED lighting power supplies, a current junction station and a grid-connected inverter, wherein the multiple LED lighting power supplies are respectively powered by the alternating current power supply and used for converting alternating currents into direct currents and then outputting the direct currents; the current junction station is used for converging currents output by the multiple LED lighting power supplies; the grid-connected inverter is used for converting the direct currents converged by the current junction station into an alternating current, adjusting the frequency and phase of the converted alternating current to be consistent with those of the alternating current power supply, and then feeding back the alternating current into the alternating current power supply and a power supply loop among the LED lighting power supplies; and the alternating current power supply is connected with the multiple LED lighting power supplies, the current junction station and the grid-connected inverter to form a power supply aging loop which is used for simultaneously carrying out an aging test on the multiple LED lighting power supplies and is powered by the alternating current power supply. The energy-saving aging device disclosed by the invention is reasonable in design, convenient in wiring, low in cost, simple and convenient in operation, good in use effect and low in energy consumption, and can be used for solving the problem that a traditional power supply aging device causes a great waste of electric energy.

The invention discloses a multi-path MPPT inverter current sharing control method under the same input source condition. The multi-path MPPT inverter current sharing control method comprises the stepsof: S1, connect multi-path MPPT inverters to the same input source in parallel; S2, determining whether the current condition is the same input source condition; S3, selecting one path from the multi-path MPPT as a reference MPPT path; S4, acquiring a voltage loop reference of the reference MPPT path, acquiring a current loop reference according to a PV voltage and the voltage loop reference of the reference MPPT path, and acquiring a Boost control PWM duty ratio output by the reference MPPT path according to the current loop reference and a PV current of the reference MPPT path; S5, acquiring Duty (delta) according to PV currents of the rest MPPT paths and the PV current of the reference MPPT path that pass through a compensation controller separately, and acquiring Boost control PWM duty ratios output by the rest MPPT paths by combining with the Boost control PWM duty ratio of the reference MPPT path.

The invention provides an array substrate repairing method. The method comprises the steps that to-be-repaired array substrates are divided into two groups; a laser repairing unit is used for identifying positions of defects of the first group of array substrates and repairing point defects, and meanwhile, a laser long-line unit is used for repairing the second group of array substrates; the arraysubstrates, which are repaired by the laser repairing unit and have line defects, in the first group of array substrates are conveyed to the laser long-line unit for repairing; under the condition that the defects of all the array substrates in the second group of array substrates are found and repaired, the array substrates repaired by the laser long-line unit are conveyed to a centralized processing machine table to be concentrated; all the array substrates located on the centralized processing machine table are transported to a sorting machine table, and the repaired array substrates and the to-be-repaired array substrates are classified and sequenced on the sorting machine table.

The invention discloses new energy automobile motor controller aging equipment. The new energy automobile motor controller aging equipment comprises a high-power PWM rectifier power supply, a grid-connected inverter, an electric power detection module, a four-way temperature detection module, an aging controller, an aging room temperature control module, an aging control host and a display, wherein the high-power PWM rectifier power supply is connected with a product to be aged; the product to be aged is connected with a load; and the load is also connected with the grid-connected inverter. Athree-phase transformer and a PWM inverter are used to simulate a real motor which serves as the electronic load of a motor controller, alternating current electric energy is absorbed from the motor controller and rectified into direct current, and the direct current is fed back to a bus through the grid-connected inverter. The problem concerned with power load required by an aging system is solved; the problem concerned with energy consumption required by aging controller products is solved; the aging cost of the products is lowered; and the aging time for aging the products is shortened.

The invention relates to the technical field of aging experimental equipment and provides multistage charging aging equipment. The multistage charging aging equipment comprises a master control cabinet, an aging frame and a load cabinet. A central control unit is arranged in the master control cabinet. Multiple stages of monitoring modules electrically connected with the central control unit are arranged on the aging frame, and an adjustable load electrically connected with the central control unit is arranged in the load cabinet. The upper ends of the monitoring modules are electrically connected with power input connecting parts, the lower ends of the monitoring modules are electrically connected with power output connecting parts, load wiring terminals and power output terminals are arranged on the power output connecting parts, the load wiring terminals are electrically connected with the adjustable load, the power output terminals are electrically connected with the next stage ofpower input connecting part, and the power output connecting parts are electrically connected with the central control unit. By means of the multistage charging aging equipment, multiple pieces of target equipment can be aged at the same time, the rear stage of target equipment serves as the load of the former stages of target equipment, the aging efficiency can be improved, energy losses can be reduced, and the aging cost can be reduced.

The invention discloses a novel direct-current power supply aging device, which comprises a grid-side power supply unit, an aging furnace P capable of simultaneously carrying out aging tests on a plurality of direct-current power supplies, an inversion grid-connected unit, a sampling unit and a control system unit. The aging furnace P is connected with the grid-side power supply unit and is used for carrying out aging test on the direct-current power supply; the inversion grid-connected unit comprises an inverter VCI, an air-core reactor L and a current-limiting resistor R; the sampling unit comprises a current transformer TA, a voltage transformer TV1 and a voltage transformer TV2; one end of the current transformer TA is connected with the output terminal of the current-limiting resistorR, and a contactor KM4 is connected between the current transformer TA and the output terminal of a contactor KM1; and when the contactor KM4 is closed, a closed loop is formed among the aging furnace P, the inversion grid-connected unit and the current transformer TA. The control system unit comprises an FPGA and a DSP. According to the invention, the aging efficiency is improved, the aging costis reduced, the use is convenient, and the universality is high.

The invention belongs to the technical field of wine preparation. The invention discloses silicon wine and a preparation method thereof. According to the preparation method of the silicon wine provided by the invention, white spirit is electrolyzed in an electrolysis manner, so that the association degree between alcohol molecules and water molecules is enhanced, a larger and firmer polar intermolecular association group is formed, and the enhancement of esterification reaction is promoted, and mixing the obtained electrolytic white spirit with silicon to obtain the silicon wine. The inventionfurther provides the silicon wine, the electrolyzed white spirit is mixed with silicon, the pungent irritation of the wine is reduced, the taste is soft and smooth, organic acid in the white spirit can quickly generate chemical reaction with alcohol substances, and the white spirit can be extremely savoury and mellow in a short time.