CN102288211A - Refrigerating medium electronic displaying device - Google Patents
Refrigerating medium electronic displaying device Download PDFInfo
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- CN102288211A CN102288211A CN2011101099400A CN201110109940A CN102288211A CN 102288211 A CN102288211 A CN 102288211A CN 2011101099400 A CN2011101099400 A CN 2011101099400A CN 201110109940 A CN201110109940 A CN 201110109940A CN 102288211 A CN102288211 A CN 102288211A
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Abstract
The invention relates to a refrigerating medium electronic displaying device, belonging to the technical field of sensor detecting devices. The refrigerating medium electronic displaying device comprises a temperature sensor, a pressure sensor, a composition sensor, a liquid level sensor, a singlechip module, a power supply module, a clock circuit module, a resetting circuit module, a voice reminding device, a setting button circuit module and a weighing button circuit module; the output ends of the temperature sensor, the pressure sensor, the composition sensor, the liquid level sensor, the setting button circuit module and the weighing button circuit module are respectively connected with the singlechip module; the clock circuit module and the resetting circuit module are respectively connected with the singlechip module; the singlechip module is respectively connected with the input end of the voice reminding device and the input end of a display module; and the power supply module supplies power supply for the singlechip module. The refrigerating medium electronic displaying device provided by the invention can detect temperature, pressure and water content of a refrigerating medium and can alarm when the temperature, the pressure and the water content exceed alarming values; the refrigerating medium electronic displaying device displays the pressure, the water content, the temperature, weight and category of the refrigerating medium; when the refrigerating medium is added, an adding quantity of the refrigerating medium can be set as required and quantitatively adding of the refrigerating medium can be conveniently and rapidly realized.
Description
Technical field
The present invention relates to a kind of cold-producing medium electronic display unit, belong to the sensor detecting device technical field.
Background technology
Refrigerant cylinder is the indispensable instrument that the maintenance personal carries cold-producing medium.To generally be to adopt the loss of weight weighing method to carry out refrigerant feeding, the weight of promptly first weighing refrigerant cylinder usually in the air-conditioning maintenance to the quantitative refrigerant feeding of air conditioner from refrigerant cylinder, according to the weight of wanting refrigerant feeding, adjust scale, refrigerant feeding waits when being added to desired value and finishes then.This maneuver, not only complicated, and to use metering outfits such as platform scale or electronic scales, the maintenance personal often is unwilling to adopt, and when especially making house calls, can not carry metering outfits such as platform scale or electronic scales substantially.What generally adopt now is to observe low pressure, sensation air outlet temperature or see that empirical method such as evaporator dewfall adds cold-producing medium, and to be easy to cause cold-producing medium to add not enough or excessive for refrigerant feeding method in this, makes the air conditioner refrigerating ability drop, even cause fault.In addition, in maintenance, the refrigerant cylinder appearance is the same, owing to do not know the composition situation of cold-producing medium, takes refrigerant cylinder sometimes by mistake, other cold-producing mediums might be added in the refrigeration plant, causes fault; Sometimes water cut is very big cold-producing medium adds in the refrigeration plant, can cause faults such as ice is stifled, equipment corrosion.
Summary of the invention
The objective of the invention is to defective, a kind of cold-producing medium electronic display unit is provided at the above-mentioned background technology.
Technical scheme of the present invention is:
A kind of cold-producing medium electronic display unit comprises temperature sensor, pressure transducer, component sensor, liquid level sensor, one-chip computer module, power module, clock circuit module, reset circuit module, sound prompting device, sets button circuit module, the button circuit module of weighing; The output terminal of temperature sensor, pressure transducer, component sensor, liquid level sensor, setting button circuit module, the button circuit module of weighing is connected with one-chip computer module respectively, clock circuit module, reset circuit module are connected with one-chip computer module respectively, one-chip computer module is connected with the input end of sound prompting device, the input end of display module respectively, and power module is imported power supply to one-chip computer module.
Pressure transducer, temperature sensor, component sensor, liquid level sensor and weigh button and the be connected electric wire of setting button in the cold-producing medium electronic display unit of the present invention with single-chip microcomputer, extend into refrigerant cylinder inside, sensor connects the contact position of electric wire and refrigerant cylinder shell, adopt ceramic insulation, good seal, not leakage of refrigerant.
The sound prompting device is a hummer in the cold-producing medium electronic display unit of the present invention.
Display module is a LCD display in the cold-producing medium electronic display unit of the present invention.
Beneficial effect of the present invention is as follows:
(1) temperature of detectable refrigerant, pressure and water cut are reported to the police when temperature, pressure and water cut surpass warning value;
(2) kind of demonstration refrigerant pressure, water cut, temperature, cold-producing medium weight and cold-producing medium;
(3) when refrigerant feeding, can set the amount that adds cold-producing medium as required, the quantitative refrigerant feeding of convenient and swift realization.
Description of drawings
Fig. 1 is the electronics display circuit block diagram of cold-producing medium electronic display unit of the present invention;
Fig. 2 is the use synoptic diagram of cold-producing medium electronic display unit of the present invention.
Among the figure: electronic display unit panel 1, the button 2 of weighing, setting button 3, display screen 4, refrigerant cylinder 5, cold-producing medium import and export 6, charging valve 7, handle 8.
Specific embodiments:
Enforcement below in conjunction with 1 pair of technical scheme of accompanying drawing is described in further detail:
As shown in Figure 1, a kind of cold-producing medium electronic display unit comprises temperature sensor, pressure transducer, component sensor, liquid level sensor, one-chip computer module, power module, clock circuit module, reset circuit module, sound prompting device, sets button circuit module, the button circuit module of weighing; The output terminal of temperature sensor, pressure transducer, component sensor, liquid level sensor, setting button circuit module, the button circuit module of weighing is connected with one-chip computer module respectively, clock circuit module, reset circuit module are connected with one-chip computer module respectively, one-chip computer module is connected with the input end of sound prompting device, the input end of display module respectively, and power module is imported power supply to one-chip computer module.
The sound prompting device is a hummer in the cold-producing medium electronic display unit of the present invention.
Display module is a LCD display in the cold-producing medium electronic display unit of the present invention.
Pressure transducer, temperature sensor, component sensor, liquid level sensor and weigh button and the be connected electric wire of setting button in the cold-producing medium electronic display unit of the present invention with single-chip microcomputer, extend into refrigerant cylinder inside, sensor connects the contact position of electric wire and refrigerant cylinder shell, adopt ceramic insulation, good seal, not leakage of refrigerant.
The present invention is used for detecting cold-producing medium and the device of the quantitative refrigerant feeding of realizing weighing.Utilize temperature sensor, pressure transducer to detect the pressure in the steel cylinder and be presented on the LCD display.When steel cylinder inner refrigerant temperature greater than 50 ℃ or pressure during greater than 2.8MPa, hummer sends continuous " the ticking---" warning that pipes; Component sensor detects that water cut is presented on the LCD display in the cold-producing medium in the steel cylinder, surpasses at 0.5% o'clock, and hummer sends continuous " the ticking---" warning that pipes; According to detected refrigerant temperature and pressure, the program in the single-chip microcomputer can be analyzed and compare R22 commonly used, R134a, R12, R600a cold-producing medium, and the result is presented on the LCD display; The button of weighing all is cycling switchs with setting button, only presses the button of weighing, and could set the cold-producing medium addition by setting button, and whenever by once setting button, setting value increases 10g weight; By the button of once weighing, by setting the amount that button is provided with needs to add cold-producing medium, single-chip microcomputer enters loss of weight method refrigerant feeding pattern, single-chip microcomputer is calculated weight according to current refrigerant level, temperature, density earlier, when reducing to set amount Deng cold-producing medium, hummer sends the sound that " tick---ticking---" is interrupted, and the prompting cold-producing medium has added, press the button of weighing again and just reset, hummer stops to send sound.
This device is made up of temperature sensor, pressure transducer, component sensor, liquid level sensor, one-chip computer module, power module, clock circuit module, reset circuit module, sound prompting device, setting button circuit module, the button circuit module of weighing etc.One-chip computer module writes the program of pressure, temperature, composition and Level Detection, setting, computing, demonstration output and hummer output by above-mentioned requirements.After making up power supply, clock and reset circuit, device is installed on the refrigerant cylinder, single-chip microcomputer just can have been worked.
Principle of work of the present invention is: the cold-producing medium electronic display unit is when refrigerant feeding, by the button of once weighing, by setting the amount that button is provided with needs to add cold-producing medium, single-chip microcomputer enters loss of weight method refrigerant feeding pattern, single-chip microcomputer is calculated weight according to current refrigerant level, temperature, density earlier, when reducing to set amount Deng cold-producing medium, hummer sends the sound that " tick---ticking---" is interrupted, the prompting cold-producing medium has added, press the button of weighing again and just reset, hummer stops to send sound.Hummer sends continuous " ticking---" warnings that pipe when pressure, temperature and water cut surpass warning value, " tick---the ticking---" of sending interruption when having added cold-producing medium pipes, and points out to have added cold-producing medium.The kind of liquid crystal display refrigerant pressure, water cut, temperature and cold-producing medium.
Now with following embodiment and in conjunction with the accompanying drawings 2 pairs of technical schemes of the present invention be described further:
Embodiment 1
The cold-producing medium electronic display unit is installed on the refrigerant cylinder, from refrigerant cylinder during to the quantitative refrigerant feeding of air conditioner, the refrigerant cylinder import and export are connected liquid-feeding tube, balance refrigerant cylinder, by the button of once weighing, by the amount that button is provided with needs to add cold-producing medium is set, single-chip microcomputer enters loss of weight method refrigerant feeding pattern, and single-chip microcomputer is earlier according to current refrigerant level, temperature, density is calculated weight, then, the charging valve of opening refrigerant cylinder carries out refrigerant feeding, and when waiting cold-producing medium to reduce to set amount, hummer sends the sound of interruption, the prompting cold-producing medium has added, close charging valve, pull down liquid-feeding tube, quantitatively the refrigerant feeding EO.Press the button of weighing again and just reset, hummer stops to send sound.
The cold-producing medium electronic display unit is installed on the refrigerant cylinder, and at ordinary times, refrigerant cylinder sends the continuous warning that pipes when pressure and water cut surpass warning value.The kind that shows refrigerant pressure, water cut, temperature and cold-producing medium on the LCDs.
Claims (4)
1. a cold-producing medium electronic display unit is characterized in that: comprise temperature sensor, pressure transducer, component sensor, liquid level sensor, one-chip computer module, power module, clock circuit module, reset circuit module, sound prompting device, set button circuit module, the button circuit module of weighing; Wherein the output terminal of temperature sensor, pressure transducer, component sensor, liquid level sensor, setting button circuit module, the button circuit module of weighing is connected with one-chip computer module respectively, clock circuit module, reset circuit module are connected with one-chip computer module respectively, one-chip computer module is connected with the input end of sound prompting device, the input end of display module respectively, and power module is imported power supply to one-chip computer module.
2. cold-producing medium electronic display unit according to claim 1 is characterized in that: described sensor connects the contact position of electric wire and refrigerant cylinder shell, adopts ceramic insulation.
3. cold-producing medium electronic display unit according to claim 1 is characterized in that: described sound prompting device is a hummer.
4. cold-producing medium electronic display unit according to claim 1 is characterized in that: described display module is a LCD display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101099400A CN102288211A (en) | 2011-04-24 | 2011-04-24 | Refrigerating medium electronic displaying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101099400A CN102288211A (en) | 2011-04-24 | 2011-04-24 | Refrigerating medium electronic displaying device |
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| Publication Number | Publication Date |
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| CN102288211A true CN102288211A (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101099400A Pending CN102288211A (en) | 2011-04-24 | 2011-04-24 | Refrigerating medium electronic displaying device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002213845A (en) * | 2001-01-22 | 2002-07-31 | Daikin Ind Ltd | Refrigerant liquid storage tank monitoring system, system on the side to be monitored thereby, monitoring side system thereof, method for monitoring refrigerant liquid storage tank and program for simulating refrigerant liquid, and computer-readable recording medium having the program recorded thereon |
| CN1479062A (en) * | 2002-08-30 | 2004-03-03 | 刘志刚 | Digital type refrigerant quantitative charging-discharging machine |
| US20060010898A1 (en) * | 2004-07-16 | 2006-01-19 | Snap-On Incorporated | System for refrigerant charging with constant volume tank |
| CN101865728A (en) * | 2010-05-28 | 2010-10-20 | 林勇 | Refrigeration system filth blockage detection device |
| CN202033049U (en) * | 2011-04-24 | 2011-11-09 | 林勇 | Electronic display device for refrigerant |
-
2011
- 2011-04-24 CN CN2011101099400A patent/CN102288211A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002213845A (en) * | 2001-01-22 | 2002-07-31 | Daikin Ind Ltd | Refrigerant liquid storage tank monitoring system, system on the side to be monitored thereby, monitoring side system thereof, method for monitoring refrigerant liquid storage tank and program for simulating refrigerant liquid, and computer-readable recording medium having the program recorded thereon |
| CN1479062A (en) * | 2002-08-30 | 2004-03-03 | 刘志刚 | Digital type refrigerant quantitative charging-discharging machine |
| US20060010898A1 (en) * | 2004-07-16 | 2006-01-19 | Snap-On Incorporated | System for refrigerant charging with constant volume tank |
| CN101865728A (en) * | 2010-05-28 | 2010-10-20 | 林勇 | Refrigeration system filth blockage detection device |
| CN202033049U (en) * | 2011-04-24 | 2011-11-09 | 林勇 | Electronic display device for refrigerant |
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Application publication date: 20111221 |