Energy efficiency of and electronic energy efficiency identification indicator of refrigeration electrical equipment

Energy efficiency of and electronic energy efficiency identification indicator of refrigeration electrical equipment

  • CN 102,201,200 B
  • Filed: 04/14/2011
  • Issued: 05/20/2015
  • Est. Priority Date: 04/14/2011
  • Status: Active Grant
First Claim
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1. an electronics Energy Labeling indicator, be made up of sensor, single-chip microcomputer, pilot lamp, it is characterized in that:

  • described sensor comprises sensor, the electric refrigerator electric power measurement sensor of the temperature sensor measuring refrigerant inlet temperature, the temperature sensor measuring refrigerant exit temperature, measurement refrigerant flow;

    Described pilot lamp is made up of the red, green, blue three-color LED light with driving circuit;

    Described single-chip microcomputer gathers the data of each sensor, calculates Energy Efficiency Ratio numerical value, and controls the brightness of red, green, blue three LED in described pilot lamp respectively according to the relation between Energy Efficiency Ratio and efficiency grade and corresponding color, thus controls the color of pilot lamp;

    And, the sensor of described measurement refrigerant flow is arranged as follows;

    the flow obtaining the cold-producing medium unit interval according to the size of the fixed flow rate of cold-producing medium in electrical equipment and cold-producing medium caliber, utilize single-chip microcomputer I/O mouth to control the unlatching of cold-producing medium valve, namely the flow being multiplied by the unit interval opening time obtains the flow of the cold-producing medium in certain hour;

    And be multiplied by electric power with the opening time and obtain the electric energy that in cold-producing medium valve opening time, electric refrigerator consumes;

    Electric refrigerator is in a process of refrigerastion, color when pilot lamp keeps freezing last time corresponding to efficiency grade, until when cold-producing medium valve close moment rises, color corresponding to the efficiency grade that pilot lamp starts to show this process of refrigerastion, remain to end of next time freezing always, then according to the corresponding color of efficiency grade transformation of freezing next time;

    Wherein, the single-chip microcomputer with A/D port and PWM passage selected by described single-chip microcomputer;

    Described temperature sensor adopts NTC thermistor, is separately positioned on outlet and the porch of compressor, and it exports the A/D entrance being sent to single-chip microcomputer respectively;

    The flow of described cold-producing medium is by carrying out timing to obtain to the opening time of cold-producing medium valve (3), record the opening and closing time of valve respectively, wherein the break-make of valve is controlled by the I/O mouth of single-chip microcomputer, the opening and closing condition of valve is determined by the ruuning situation of product, and namely the product of timing length and valve flows per unit time is refrigerant flow;

    Described single-chip microcomputer according to surveyed numerical value by calculating Energy Efficiency Ratio, according to the corresponding relation between Energy Efficiency Ratio and efficiency grade and corresponding color, three paths of LEDs lamp drive circuits (2) are controlled by PWM passage, control the brightness of R, G, B color lamp in three-primary color LED lamp (1) respectively, thus obtain corresponding color, wherein the brightness of lamp is obtained by modulating pulse width.

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