CN102706094B - Refrigeration house temperature overrun reminding device - Google Patents
Refrigeration house temperature overrun reminding device Download PDFInfo
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- CN102706094B CN102706094B CN201210218367.1A CN201210218367A CN102706094B CN 102706094 B CN102706094 B CN 102706094B CN 201210218367 A CN201210218367 A CN 201210218367A CN 102706094 B CN102706094 B CN 102706094B
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- temperature
- resistance
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- amplifier comparator
- refrigeration house
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- 238000005057 refrigeration Methods 0.000 title abstract 8
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 210000000629 knee joint Anatomy 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 241000190070 Sarracenia purpurea Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229960005486 vaccine Drugs 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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Abstract
The invention belongs to the technical field of electron and temperature control, in particular relates to a refrigeration house temperature overrun reminding device. The refrigeration house temperature overrun reminding device comprises a 9V DC power supply, a temperature detection circuit, a reference voltage circuit, a voltage comparing circuit and an acousto-optical indicating circuit, wherein a thermosensitive resistor Rt of the temperature detection circuit is selected in the model of GL16, and an operational amplifier comparator IC1 of the voltage comparing circuit is selected in the model of GL7611. The refrigeration house temperature overrun reminding device can be widely used for refrigeration houses without much rigorous requests on temperature variation and effectively solves the problem of influence of factors, i.e. frequent goods in-out of refrigeration house workers, late manual attention of refrigeration house temperature variation, and the like; the invention has the characteristics of simple circuit structure, reliable working performance, low manufacturing cost, convenience for installation, use and popularization, and the like; and the refrigeration house temperature overrun reminding device can monitor through a signal point and can also increase the monitoring points according to user needs.
Description
Technical field
The invention belongs to electronics and temperature control technology field, is about a kind of temperature of ice house alarm set that transfinites.
Background technology
For using the industry freezer such as drug storage, HBB, vaccine library, seed bank, food storage, fruit storehouse, aquatic products storehouse frequently, freezer in use should regulate temperature controller according to environment temperature, make the temperature in freezer remain on 5 ℃ of left and right, fresh with Keep cool article.If excess Temperature in freezer, some article is easy to corruption, and temperature is too low not only takes electric power, and also easily makes some food freeze and change taste.Although the function of the online temperature monitoring system of computer of freezer is fairly perfect, there is real-time online to record the variations in temperature of freezer, automatically generate Temperature history figure, temperature bound is set and is reported to the police, the functions such as record history of printing data.But do not need the temperature monitoring system of the control function of so much complexity for freezers such as general vegetables, fruit, aquatic products.Therefore, develop that a kind of circuit structure is simple, reliable working performance, cost of manufacture temperature of ice house low, the easy to install alarm set that transfinites is necessary.
The temperature of ice house of the present invention alarm set that transfinites can be widely used in variations in temperature is required to not too harsh freezer, efficiently solves freezer personnel goods turnover in the past frequent, and temperature of ice house changes the artificial impact of the factor such as taking care of not in time.This temperature of ice house transfinites alarm set can single-point monitoring, also can need to increase control point according to user.
Below describe this temperature of ice house relevant technologies content that alarm set relates in implementation process that transfinites in detail.
Summary of the invention
Goal of the invention and beneficial effect: the temperature of ice house of the present invention alarm set that transfinites can be widely used in variations in temperature is required to not too harsh freezer, efficiently solve in the past the turnover of freezer personnel goods frequent, temperature of ice house changes the artificial impact of the factor such as taking care of not in time.The features such as it has that circuit structure is simple, reliable working performance, cost of manufacture are low, easy to install, be convenient to popularize.This temperature of ice house transfinites alarm set can single-point monitoring, also can need to increase control point according to user.
Circuit working principle: the temperature of ice house alarm set that transfinites is made up of elements such as amplifier comparator IC1, thermistor Rt and linear potentiometer RP, the 2nd pin end of oppisite phase of amplifier comparator IC1 adds the branch pressure voltage of resistance R 1 and thermistor Rt, and this voltage changes along with the variation of temperature of ice house.The in-phase end of amplifier comparator IC1 adds a reference voltage, and this voltage is equivalent to the default maximum temperature of freezer (5 ℃), and the corresponding voltage of this temperature can be tested by thermometer and determine in freezer.The height of linear potentiometer RP capable of regulating preset temperature, voltage range can be adjusted arbitrarily between 2.5～3.6V.
In the time that temperature in freezer is 5 ℃, the 2nd pin voltage-to-ground of amplifier comparator IC1 is 3V, therefore the 3rd pin voltage of amplifier comparator IC1 should adjust a little less than 3V, at this moment amplifier comparator IC1 cut-off, the 6th pin output low level of amplifier comparator IC1, red light emitting diodes LED is not luminous, and buzzer HA does not work without electricity.When the temperature rise in freezer, the resistance of thermistor Rt diminishes, when the 2nd pin voltage of amplifier comparator IC1 is decreased to lower than the reference voltage of the 3rd pin of amplifier comparator IC1, amplifier comparator IC1 begins turning, the 6th pin output of amplifier comparator IC1 approximately has the high level of 8V, make LED by luminous, buzzer HA obtains electric piping, and at this moment shows that the temperature in freezer has exceeded 5 ℃.This device is installed should be away from cold-storage door, but will guarantee that user opens cold-storage door time, can conveniently see the duty of red light emitting diodes LED.
Technical characterictic: the temperature of ice house alarm set that transfinites, it by 9V dc source, temperature detection and reference voltage circuit, voltage ratio and acousto-optic indicating circuit form, its feature comprises:
Temperature detection and reference voltage circuit: by resistance R 1, thermistor Rt and resistance R 2, linear potentiometer RP, resistance R 3 forms, the model that thermistor Rt selects is GL16, the 2nd pin of a termination amplifier comparator IC1 of one end of resistance R 1 and thermistor Rt, the anodal VCC of other end connection circuit of resistance R 1, the other end connection circuit ground GND of thermistor Rt, the 3rd pin of the movable knee-joint amplifier comparator IC1 of linear potentiometer RP, one end of a terminating resistor R2 of linear potentiometer RP, the anodal VCC of other end connection circuit of resistance R 2, one end of the other end connecting resistance R3 of linear potentiometer RP, the other end connection circuit ground GND of resistance R 3,
Voltage ratio is and acousto-optic indicating circuit: be made up of amplifier comparator IC1, red light emitting diodes LED, resistance R 4 and buzzer HA, the model that amplifier comparator IC1 selects is GL7611, the anodal VCC of the 7th pin of amplifier comparator IC1 and the 8th pin connection circuit, the 4th pin connection circuit ground GND of amplifier comparator IC1, the 6th one end of pin connecting resistance R4 and the positive pole of buzzer HA of amplifier comparator IC1, the positive pole of another termination red light emitting diodes LED of resistance R 4, the negative pole connection circuit ground GND of the negative pole of red light emitting diodes LED and buzzer HA.
The positive pole of 9V dc source is connected with circuit anode VCC, the negative pole connection circuit ground GND of 9V dc source.
Accompanying drawing explanation
Accompanying drawing 1 is to the invention provides the transfinite embodiment circuit working schematic diagram of alarm set of a temperature of ice house; In accompanying drawing 1, the negative pole of 9V dc source is circuit ground GND.
The specific embodiment
According to temperature of ice house shown in accompanying drawing 1 transfinite circuit working schematic diagram and the accompanying drawing explanation of alarm set, and according to the annexation between components and parts in the each several part circuit described in summary of the invention, and the components and parts technical parameter described in embodiment requires to implement to realize the present invention.
The selection of components and parts and technical parameter thereof
IC1 is amplifier comparator, and the model of selecting is GL7611;
Rt is negative tempperature coefficient thermistor, and the model of selecting is GL16;
RP is linear potentiometer, and its resistance is 1M Ω;
The resistance of resistance R 1～R2 is 4.7M Ω; The resistance of resistance R 3 is 2.2M Ω; The resistance of resistance R 4 is 470 Ω;
LED is red light emitting diodes;
HA is buzzer, requires to use working power to have the buzzer of audio generating circuit for 9V, inside;
The suggestion of 9V dc source is used small-sized 9V voltage-stabilized power supply.
Circuit production main points and debugging specification
Temperature of ice house transfinite alarm set use electronic devices and components performance intact, and the annexation according to components and parts shown in accompanying drawing 1 is welded, physics wiring is conscientiously checked and check errorless after, the transfinite circuit of alarm set of temperature of ice house only need to carry out simple debugging and can normally work;
In the time of the regulation of electrical circuit, first-selected the 3rd pin voltage-to-ground of adjusting amplifier comparator IC1 is a little less than 3V, it is in 5 ℃ of cold water-cups that thermistor Rt is placed on to temperature with plastics valve bag good seal, with the water temperature variation in thermometer monitoring cold water-cup, cross after 1～2 minute, when in thermistor Rt1 and cup, the temperature of cold water reaches thermal balance, linear adjustment potentiometer RP slightly, till making red light emitting diodes LED just luminous;
Then in cold water-cup, enter a little a little running water, when thermometer is monitored cold water temperature a little more than 5 ℃, the 6th pin of amplifier comparator IC1 should be exported about 8V voltage, and red light emitting diodes LED is lit, and buzzer HA obtains electric piping, and now circuit is accused and debugged;
The transfinite temperature reflection precision of alarm set of temperature of ice house is ± 0.3 ℃, reaches the prompting requirement of general freezer to temperature over-range completely.
Claims (2)
1. the temperature of ice house alarm set that transfinites, it by 9V dc source, temperature detection and reference voltage circuit, voltage ratio and acousto-optic indicating circuit form, its feature comprises:
Temperature detection and reference voltage circuit are by resistance R 1, thermistor Rt and resistance R 2, linear potentiometer RP, resistance R 3 forms, the model that thermistor Rt selects is GL16, the 2nd pin of a termination amplifier comparator IC1 of one end of resistance R 1 and thermistor Rt, the anodal VCC of other end connection circuit of resistance R 1, the other end connection circuit ground GND of thermistor Rt, the 3rd pin of the movable knee-joint amplifier comparator IC1 of linear potentiometer RP, one end of a terminating resistor R2 of linear potentiometer RP, the anodal VCC of other end connection circuit of resistance R 2, one end of the other end connecting resistance R3 of linear potentiometer RP, the other end connection circuit ground GND of resistance R 3,
Voltage ratio and acousto-optic indicating circuit formed by amplifier comparator IC1, red light emitting diodes LED, resistance R 4 and buzzer HA, the model that amplifier comparator IC1 selects is GL7611, the anodal VCC of the 7th pin of amplifier comparator IC1 and the 8th pin connection circuit, the 4th pin connection circuit ground GND of amplifier comparator IC1, the 6th one end of pin connecting resistance R4 and the positive pole of buzzer HA of amplifier comparator IC1, the positive pole of another termination red light emitting diodes LED of resistance R 4, the negative pole connection circuit ground GND of the negative pole of red light emitting diodes LED and buzzer HA.
2. the temperature of ice house according to claim 1 alarm set that transfinites, is characterized in that: the positive pole of 9V dc source is connected with circuit anode VCC, the negative pole connection circuit ground GND of 9V dc source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210218367.1A CN102706094B (en) | 2012-06-28 | 2012-06-28 | Refrigeration house temperature overrun reminding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210218367.1A CN102706094B (en) | 2012-06-28 | 2012-06-28 | Refrigeration house temperature overrun reminding device |
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| CN102706094A CN102706094A (en) | 2012-10-03 |
| CN102706094B true CN102706094B (en) | 2014-05-21 |
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| CN201210218367.1A Expired - Fee Related CN102706094B (en) | 2012-06-28 | 2012-06-28 | Refrigeration house temperature overrun reminding device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735353A (en) * | 2012-07-14 | 2012-10-17 | 何林 | Temperature standard exceeding acousto-optic warning device for refrigeration house |
| CN103837806A (en) * | 2012-11-21 | 2014-06-04 | 赵元雷 | Insulation degree monitoring alarm device of electric automobile high voltage power supply system |
| CN103199839A (en) * | 2013-02-22 | 2013-07-10 | 刘德志 | Light-operated anti-theft device |
| CN109979168A (en) * | 2019-04-05 | 2019-07-05 | 黄月华 | The non-door-closing reminding device of Photosensitive refrigerator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2036649U (en) * | 1988-06-25 | 1989-04-26 | 陈仲贤 | Refrigeration temp.-controller |
| CN2052119U (en) * | 1989-03-13 | 1990-01-31 | 陈德顺 | Temp.-display protector for refrigerator |
| KR20020025906A (en) * | 2002-01-12 | 2002-04-04 | 도태훈 | A none electromagnetic wave heat controler for an electric heating bedding |
| CN202675789U (en) * | 2012-06-28 | 2013-01-16 | 黄勇 | Temperature over-limit reminding device for refrigeration storage |
-
2012
- 2012-06-28 CN CN201210218367.1A patent/CN102706094B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2036649U (en) * | 1988-06-25 | 1989-04-26 | 陈仲贤 | Refrigeration temp.-controller |
| CN2052119U (en) * | 1989-03-13 | 1990-01-31 | 陈德顺 | Temp.-display protector for refrigerator |
| KR20020025906A (en) * | 2002-01-12 | 2002-04-04 | 도태훈 | A none electromagnetic wave heat controler for an electric heating bedding |
| CN202675789U (en) * | 2012-06-28 | 2013-01-16 | 黄勇 | Temperature over-limit reminding device for refrigeration storage |
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| CN102706094A (en) | 2012-10-03 |
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Effective date of registration: 20150906 Address after: 28, A, building 830011, Pacific Plaza, No. 217, Gaoxin street, new urban district, the Xinjiang Uygur Autonomous Region, Urumqi Patentee after: Kuche Jiefeng fruit industry limited liability company Address before: Bengshan Wing Street 233000 Anhui city of Bengbu province No. 120 Municipal Construction Committee Patentee before: Huang Yong |
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Application publication date: 20121003 Assignee: Kuche Jiefeng fruit industry limited liability company Assignor: Huang Yong Contract record no.: 2015650000036 Denomination of invention: Refrigeration house temperature overrun reminding device Granted publication date: 20140521 License type: Exclusive License Record date: 20150824 |
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