CN102201200A - Method for automatically identifying energy efficiency of refrigeration electrical equipment and electronic energy efficiency identification indicator thereof - Google Patents
Method for automatically identifying energy efficiency of refrigeration electrical equipment and electronic energy efficiency identification indicator thereof Download PDFInfo
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- CN102201200A CN102201200A CN2011100936253A CN201110093625A CN102201200A CN 102201200 A CN102201200 A CN 102201200A CN 2011100936253 A CN2011100936253 A CN 2011100936253A CN 201110093625 A CN201110093625 A CN 201110093625A CN 102201200 A CN102201200 A CN 102201200A
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Abstract
The invention relates to a method for automatically identifying energy efficiency of refrigeration electrical equipment and an electronic energy efficiency identification indicator thereof, in particular to a method for automatically testing and indicating the energy efficiency of the refrigeration electrical equipment and an electronic energy efficiency identification indicator designed by utilizing the method. In the invention, the energy efficiency ratio of the refrigeration electrical equipment is obtained through measuring the inlet and the outlet temperatures and the flow of a refrigerant and the electric power of the refrigeration electrical equipment and the energy efficiency grade of the refrigeration electrical equipment is reflected through controlling the color of an indicator light according to the energy efficiency ratio and the corresponding relation between the energy efficiency grade and the corresponding color. A hardware circuit of the indicator can be arranged on a circuit board at the interior of a product; the indicator light for indicating the energy efficiency grade is inlayed in a panel of the product; the indicator light can change different colors according to the energy efficiency grade corresponding to a practical work status in the running of the product; and therefore, when the electrical equipment is started, a consumer can very conveniently know the energy efficiency grade of the product according to the color of the indicator light and pay close attention to the performance change of the product in real time.
Description
Technical field
The present invention relates to the method for a kind of automatic test electric refrigerator energy efficiency of equipment and indication, and utilizes the electronic energy criterion of this method design to know indicator.
Background technology
The efficiency grade is other a kind of stage division of expression household refrigerating appliance product efficiency difference of height, and according to the national standard relevant regulations, the efficiency of China sign is divided into five grades with efficiency at present.Grade 1 expression product economize on electricity is reached advanced world standards, and energy consumption is minimum; Grade 2 expression products compare more electricity saving; Grade 3 expression product energy efficiencies are the average level of China market; Class 4 represents that the product energy efficiency is lower than the market average level; Class 5 is a produce market access index, and the product that is lower than this grade requirement does not allow production and selling.
With the air-conditioning is example, and the air-conditioning Energy Efficiency Ratio is under declared working condition and rated condition, the ratio of actual refrigerating capacity and actual power input when air-conditioning carries out refrigerating operaton.This is a composite target, has reflected the refrigerating capacity that the unit power input converts in the operation of air conditioner process.The air-conditioning Energy Efficiency Ratio is big more, and the electric energy of saving when refrigerating capacity equates is just many more.The air-conditioning Energy Efficiency Ratio of national regulation and the pass between the efficiency grade are:
Energy Efficiency Ratio efficiency grade
2.6～2.8---------Pyatyis
2.8～3.0---------level Four
3.0～3.2---------three grades
3.2～3.4---------secondarys
3.4-------one-level more than reaching
Therefore, as long as calculate the Energy Efficiency Ratio of air-conditioning, just can determine the efficiency grade of air-conditioning.
The efficiency of China is designated the papery color label of blue white background at present, and the back has viscosity, and the top indicates " Chinese efficiency sign " (CHINA ENERGY LABEL) printed words, generally sticks on the front panel of product.The information content of refrigerator efficiency sign comprises the producer of product, model, the national standard of energy efficiency grade, 24 hours power consumption, each chamber volume, foundation number.The information of air-conditioning efficiency sign comprises: the national standard of the producer of product, model, energy efficiency grade, Energy Efficiency Ratio, power input, refrigerating capacity, foundation number.Different brackets is represented by different colors and length respectively.The shortest is bottle green, representative " energy saving directions in following 4 years ", and just secondly international most advanced level is green, yellow, orange and red.The grade sea dye is to arrange according to the emotion of color representative, and wherein the redness representative is forbidden, orange, yellow representative warning, and green is represented environmental protection and energy-conservation.
But because the efficiency grade label of this papery just is attached on the products panel, the consumer often tears it off after buying product, and then the efficiency grade of this product is also no longer paid close attention to.And along with the use of product, the performance of product decays gradually, and its efficiency grade is also changing, and can reduce along with the prolongation of service time as the heat exchanger efficiency of air-conditioning, thereby cause its efficiency grade to reduce; Even under varying environment and condition, use same electric refrigerator, its efficiency grade also can change, as convertible frequency air-conditioner when the start just or non-confined space when using its lower grade of efficiency, and along with the reduction of indoor temperature and stable, its efficiency grade can raise.As seen, efficiency grade and the variation thereof that existing papery efficiency sign can not the effecting reaction electric refrigerator.
Summary of the invention
The purpose of this invention is to provide a kind of method that can indicate refrigeration electric equipment products efficiency grade in real time, and the electronic energy criterion that utilizes this method to make is known indicator, with pilot lamp different color of the pairing efficiency grade transformation of actual working state can be according to electric operation the time, represent different efficiency grades.
To achieve these goals, the present invention has taked following technical scheme:
A kind of electric refrigerator efficiency Automatic Logos method is represented the electric refrigerator efficiency by the pilot lamp of representing the efficiency grade,
A) according to formula
EER=Q 0 / P, calculate the Energy Efficiency Ratio of electric refrigerator, in the formula,
B) utilize intelligent element to gather above-mentioned parameter and calculate Energy Efficiency Ratio; With the corresponding one-tenth of the Energy Efficiency Ratio numerical value efficiency grade that obtains, its corresponding relation is:
Energy Efficiency Ratio efficiency grade
2.6～2.8---------Pyatyis
2.8～3.0---------level Four
3.0～3.2---------three grades
3.2～3.4---------secondarys
3.4-------one-level more than reaching
C) pilot lamp of efficiency grade with different colours showed,, represent 1,2,3,4,5 five efficiency grade respectively with bottle green, light green color, yellow, orange and red five kinds of colors.
Described refrigerant flow wherein can followingly obtain: according to fixed flow rate and the size of the cold-producing medium caliber flow that obtain cold-producing medium unit interval of cold-producing medium in electrical equipment.
Can design a kind of electronic energy criterion according to said method and know indicator, form by sensor, single-chip microcomputer, pilot lamp.Wherein, described sensor comprises temperature sensor, the temperature sensor of measuring the refrigerant outlet temperature of measuring the refrigerant inlet temperature, sensor, the electric refrigerator electric power measurement sensor of measuring refrigerant flow; Described pilot lamp is made of the red, green, blue three-color LED light that has driving circuit; Described single-chip microcomputer is gathered the data of each sensor, calculates Energy Efficiency Ratio numerical value, and controls the brightness of three LED lamps of red, green, blue in the described pilot lamp respectively according to the relation between Energy Efficiency Ratio and efficiency grade and the corresponding color, thereby controls the color of pilot lamp.
The sensor of described measurement refrigerant flow can followingly be provided with: the flow that obtains the cold-producing medium unit interval according to the size of the fixed flow rate of cold-producing medium and caliber, utilize an I/O mouth of single-chip microcomputer to control the unlatching of cold-producing medium valve, the flow that will multiply by the unit interval opening time promptly obtains the flow of opening time inner refrigerant; And multiply by electric power with the opening time and obtain the refrigeration electric energy that electrical equipment consumed in the cold-producing medium valve opening time; Electric refrigerator is in process of refrigerastion, the pairing color of efficiency grade when pilot lamp keeps freezing last time, up to rising when cold-producing medium valve close moment, pilot lamp begins to show the efficiency grade institute corresponding color of this process of refrigerastion, remain to refrigeration end next time, the more corresponding color of efficiency grade transformation of freezing according to next time always.
Described pilot lamp is provided with light transmission outer cover.This light transmission outer cover can be designed as the figure of the earth.
The present invention is by the refrigerating capacity of monitoring electric refrigerator, can obtain the Energy Efficiency Ratio of electric refrigerator in real time, and the pairing efficiency grade of actual working state when pilot lamp can be according to electric operation, the color that conversion is different, with bottle green, light green color, yellow, orange and red five kinds of colors, represent 1,2,3,4,5 five efficiency grade respectively.Like this, when electrical equipment was opened, the consumer can recognize the efficiency grade of product easily according to the color of pilot lamp, and paid close attention to the variation of properties of product in real time.And the outer cover of pilot lamp is the little figure of the earth in the plane of a light-permeable, and the variation of indicator light colors makes indicator can directly reflect the theory of efficiency grade energy-conserving and environment-protective promptly corresponding to earth change in color, increases its attractive in appearance and practicality simultaneously.
Description of drawings
Fig. 1 is the circuit theory diagrams that the electronic energy criterion is known a preferred embodiment of indicator among the present invention.
Fig. 2 is the pilot lamp outer cover that the electronic energy criterion is known a kind of figure of the earth in the indicator.
Among the figure: 1, three-primary color LED lamp, 2, three paths of LEDs lamp drive circuits; 3, cold-producing medium valve.
Embodiment
Introduce embodiments of the invention below in conjunction with accompanying drawing.
Air-conditioning Energy Efficiency Ratio measuring method and Energy Efficiency Ratio indicating means:The air-conditioning Energy Efficiency Ratio is under declared working condition and rated condition, the ratio of actual refrigerating capacity and actual power input when air-conditioning carries out refrigerating operaton.This is a composite target, has reflected the refrigerating capacity that the unit power input converts in the operation of air conditioner process.The air-conditioning Energy Efficiency Ratio is big more, and the electric energy of saving when refrigerating capacity equates is just many more.The air-conditioning Energy Efficiency Ratio of national regulation and the pass between the efficiency grade are:
Energy Efficiency Ratio efficiency grade
2.6～2.8---------Pyatyis
2.8～3.0---------level Four
3.0～3.2---------three grades
3.2～3.4---------secondarys
3.4-------one-level more than reaching
Therefore, as long as calculate the Energy Efficiency Ratio of air-conditioning, just can determine the efficiency grade of air-conditioning.And Energy Efficiency Ratio equals the ratio of the actual refrigerating capacity of air-conditioning and actual power input, therefore, just can calculate Energy Efficiency Ratio as long as measure the actual refrigerating capacity and the actual power input of air-conditioning in the unit interval, promptly the available following formula of Energy Efficiency Ratio (EER) during air conditioner refrigerating is represented:
EER=Q
0
/P
In the formula:
Be air conditioner refrigerating amount in the unit interval
PPower input for air-conditioning
And the air conditioner refrigerating amount refers to that the product that the heat that the unit interval inner refrigerant absorbs, the mass rate of available refrigerants multiply by cold-producing medium import and export temperature difference tries to achieve, that is:
In the formula:
---the clean refrigerating capacity of unit (kW);
---the specific heat capacity of cold-producing medium (
);
During concrete the measurement
Can measure by flowmeter (as turbo flow meter etc.),
With
Can measure by temperature sensor,
With
Difference according to cold-producing medium has its concrete numerical value (constant), power input
PAll can measure with various power measurement technology or power meter.
To sum up, after respectively measuring numerical value more than the acquisition, the CPU of air-conditioning can obtain Energy Efficiency Ratio by corresponding calculated, and then judges corresponding efficiency grade, further sends the light of respective color by PWM control RGB LED lamp.
The electronic energy criterion is known the preferred embodiment of indicator:CPU can select the single-chip microcomputer (as the mega series of Atmel company) that has A/D port and PWM passage for use, can adopt the NTC thermistor to measure temperature (temperature difference, the resistance difference of thermistor, ohmically pressure drop is also different, thereby record temperature), in outlet and porch (outlet of compressor and the porch) of cold-producing medium two thermistors are installed respectively, are measured the outlet and the temperature in of cold-producing medium, be sent to the A/D inlet of single-chip microcomputer respectively; Refrigerant flow can obtain by the opening time of cold-producing medium valve 3 is carried out timing, the opening and closing time of difference recording valve, (break-make of valve can be 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, too high as indoor temperature, open valve, indoor temperature reaches then valve-off of design temperature), (flow velocity of cold-producing medium is known concerning production unit for time span and valve unit interval flow, the diameter of valve also is known, so the unit interval flow is known) product promptly be refrigerant flow; Single-chip microcomputer according to the numerical value of being surveyed by calculating Energy Efficiency Ratio, according to the corresponding relation between Energy Efficiency Ratio and efficiency grade and the corresponding color, control three paths of LEDs lamp drive circuits 2 by the PWM passage, control R, the G in the three-primary color LED lamp 1, the brightness of B color lamp respectively, thereby obtain corresponding color.Wherein, realize that by software PWM is pulse-length modulation, regulating the brightness of lamp by the width of pulse, is 50% o'clock as pulse width in the unit interval, and the brightness of lamp is 50% of maximum brightness, pass through the brightness of the lamp of three kinds of different colours of adjusting RGB like this, can obtain corresponding color, as needs when red, allow the gate width of G, B be zero, and allow the gate width of R be 100%, can obtain redness; Can allow the gating width of R and G identical when needing yellow, the gating width of B is zero; Needing when orange to be 75% with the gating width of R, and G is 30%, and B is 2% etc.
Relation between the glow color of LED lamp and the efficiency grade is as follows:
1 grade of bottle green----
2 grades of light green colors----
Yellow----3 grades
Orange----4 grades
Red----5 grades
Since need be in a period of time that the cold-producing medium valve is opened (electric refrigerator is in working time) obtain the flow of cold-producing medium and the consumption of electric energy, when the cold-producing medium valve is closed (electric refrigerator is out of service), just can obtain Energy Efficiency Ratio, so, electric refrigerator is in process of refrigerastion, when pilot lamp kept freezed last time the efficiency grade corresponding color, up to rising when this cold-producing medium valve close moment, pilot lamp begins to show the efficiency grade institute corresponding color of this process of refrigerastion, remain to refrigeration end next time, the more corresponding color of efficiency grade transformation of freezing according to next time always.
In addition, for embodying the notion of efficiency sign environmental protection and energy saving, the outer cover of this indicator is the little figure of the earth in the plane of a light-permeable, be embedded on the panel of product, pilot lamp is in its back, the variation of indicator light colors makes indicator can directly reflect the theory of efficiency grade energy-conserving and environment-protective promptly corresponding to earth change in color, increases its attractive in appearance and practicality simultaneously.Fig. 2 is the indicator outer cover synoptic diagram of the figure of the earth, and wherein black or white (can determine according to the product situation) part is the light transmission part, and its size or pattern in detail can be regulated according to the product concrete condition.
Claims (6)
1. electric refrigerator efficiency Automatic Logos method is represented the electric refrigerator efficiency by the pilot lamp of representing the efficiency grade, it is characterized in that:
A) according to formula
EER=Q 0 / P, calculate the Energy Efficiency Ratio of electric refrigerator, in the formula,
Q 0 Be the actual refrigerating capacity of electric refrigerator in the unit interval,
PActual power input for electric refrigerator; Wherein,
Measure by the flowmeter of measuring refrigerant flow,
With
Measure by the temperature sensor that is positioned at refrigeration compressor import and exit,
With
Decide according to different cold-producing mediums,
PObtain with power instrumentation amount or with other conventional electrical appliance power measurement technology;
B) utilize intelligent element to gather above-mentioned parameter and calculate Energy Efficiency Ratio; With the corresponding one-tenth of the Energy Efficiency Ratio numerical value efficiency grade that obtains, its corresponding relation is:
Energy Efficiency Ratio efficiency grade
2.6～2.8---------Pyatyis
2.8～3.0---------level Four
3.0～3.2---------three grades
3.2～3.4---------secondarys
3.4-------one-level more than reaching
C) pilot lamp of efficiency grade with different colours showed,, represent 1,2,3,4,5 five efficiency grade respectively with bottle green, light green color, yellow, orange and red five kinds of colors.
2. electronic energy criterion according to claim 1 is known indicator, it is characterized in that described refrigerant flow is following to be obtained: according to fixed flow rate and the size of the cold-producing medium caliber flow that obtain cold-producing medium unit interval of cold-producing medium in electrical equipment.
3. the electronic energy criterion is known indicator, is made up of sensor, single-chip microcomputer, pilot lamp; It is characterized in that: described sensor comprises temperature sensor, the temperature sensor of measuring the refrigerant outlet temperature of measuring the refrigerant inlet temperature, sensor, the electric refrigerator electric power measurement sensor of measuring refrigerant flow; Described pilot lamp is made of the red, green, blue three-color LED light that has driving circuit; Described single-chip microcomputer is gathered the data of each sensor, calculates Energy Efficiency Ratio numerical value, and controls the brightness of three LED lamps of red, green, blue in the described pilot lamp respectively according to the relation between Energy Efficiency Ratio and efficiency grade and the corresponding color, thereby controls the color of pilot lamp.
4. electronic energy criterion according to claim 3 is known indicator, it is characterized in that, the following setting of the sensor of described measurement refrigerant flow: according to fixed flow rate and the size of the cold-producing medium caliber flow that obtain cold-producing medium unit interval of cold-producing medium in electrical equipment, utilize an I/O mouth of single-chip microcomputer to control the unlatching of cold-producing medium valve, the flow that will multiply by the unit interval opening time promptly obtains the flow of the cold-producing medium in the certain hour; And multiply by electric power with the opening time and obtain the refrigeration electric energy that electrical equipment consumed in the cold-producing medium valve opening time; Electric refrigerator is in process of refrigerastion, the pairing color of efficiency grade when pilot lamp keeps freezing last time, up to rising when cold-producing medium valve close moment, pilot lamp begins to show the efficiency grade institute corresponding color of this process of refrigerastion, remain to refrigeration end next time, the more corresponding color of efficiency grade transformation of freezing according to next time always.
5. know indicator according to claim 3 or 4 described electronic energy criterions, it is characterized in that: described pilot lamp is provided with light transmission outer cover.
6. electronic energy criterion according to claim 5 is known indicator, and it is characterized in that: described light transmission outer cover is the figure of the earth.
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| CN201110093625.3A CN102201200B (en) | 2011-04-14 | 2011-04-14 | Energy efficiency of and electronic energy efficiency identification indicator of refrigeration electrical equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375867A (en) * | 2012-04-11 | 2013-10-30 | 珠海格力电器股份有限公司 | Air-conditioning frequency conversion processing method and device |
| CN103479182A (en) * | 2013-09-17 | 2014-01-01 | 无锡莱吉特信息科技有限公司 | Clothes hanging rod with lighting function |
| CN107152760A (en) * | 2017-05-25 | 2017-09-12 | 杜艳林 | A kind of monitoring method and monitoring system of the health status of air-conditioning |
| CN107192093A (en) * | 2017-05-24 | 2017-09-22 | 程家宝 | A kind of monitoring method and monitoring system of the health status of air-conditioning |
| CN107218694A (en) * | 2017-04-27 | 2017-09-29 | 荆门品创通信科技有限公司 | A kind of monitoring method and monitoring system of the health status of air-conditioning |
| CN107421229A (en) * | 2017-04-27 | 2017-12-01 | 荆门品创通信科技有限公司 | A kind of monitoring method and monitoring system of the health status of refrigerator |
| CN107421231A (en) * | 2017-05-24 | 2017-12-01 | 程家宝 | A kind of monitoring method and monitoring system of the health status of refrigerator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1775155A (en) * | 2004-11-15 | 2006-05-24 | 明辉光源科技(深圳)有限公司 | Electric heating thermos cup with temperature display |
| CN1831445A (en) * | 2005-03-07 | 2006-09-13 | 温塞罗控股有限公司 | Device for heating a liquid |
| CN101354322A (en) * | 2008-09-24 | 2009-01-28 | 俞天平 | Device for detecting air conditioner energy effect ratio |
| CN101435643A (en) * | 2008-12-12 | 2009-05-20 | 华南理工大学 | System and method for monitoring operation energy efficiency ratio of water chilling unit |
| JP2010197025A (en) * | 2009-02-22 | 2010-09-09 | First Water Kk | Heat source machine efficiency management system |
-
2011
- 2011-04-14 CN CN201110093625.3A patent/CN102201200B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1775155A (en) * | 2004-11-15 | 2006-05-24 | 明辉光源科技(深圳)有限公司 | Electric heating thermos cup with temperature display |
| CN1831445A (en) * | 2005-03-07 | 2006-09-13 | 温塞罗控股有限公司 | Device for heating a liquid |
| CN101354322A (en) * | 2008-09-24 | 2009-01-28 | 俞天平 | Device for detecting air conditioner energy effect ratio |
| CN101435643A (en) * | 2008-12-12 | 2009-05-20 | 华南理工大学 | System and method for monitoring operation energy efficiency ratio of water chilling unit |
| JP2010197025A (en) * | 2009-02-22 | 2010-09-09 | First Water Kk | Heat source machine efficiency management system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375867A (en) * | 2012-04-11 | 2013-10-30 | 珠海格力电器股份有限公司 | Air-conditioning frequency conversion processing method and device |
| CN103479182A (en) * | 2013-09-17 | 2014-01-01 | 无锡莱吉特信息科技有限公司 | Clothes hanging rod with lighting function |
| CN107218694A (en) * | 2017-04-27 | 2017-09-29 | 荆门品创通信科技有限公司 | A kind of monitoring method and monitoring system of the health status of air-conditioning |
| CN107421229A (en) * | 2017-04-27 | 2017-12-01 | 荆门品创通信科技有限公司 | A kind of monitoring method and monitoring system of the health status of refrigerator |
| CN107421229B (en) * | 2017-04-27 | 2018-08-31 | 江苏古河创意设计研究院有限公司 | A kind of monitoring method and monitoring system of the health status of refrigerator |
| CN107192093A (en) * | 2017-05-24 | 2017-09-22 | 程家宝 | A kind of monitoring method and monitoring system of the health status of air-conditioning |
| CN107421231A (en) * | 2017-05-24 | 2017-12-01 | 程家宝 | A kind of monitoring method and monitoring system of the health status of refrigerator |
| CN107152760A (en) * | 2017-05-25 | 2017-09-12 | 杜艳林 | A kind of monitoring method and monitoring system of the health status of air-conditioning |
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| CN102201200B (en) | 2015-05-20 |
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