CN207081838U - A kind of anti-oxidant rainfall snowfall sensor of low temperature - Google Patents
A kind of anti-oxidant rainfall snowfall sensor of low temperature Download PDFInfo
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- CN207081838U CN207081838U CN201720726751.0U CN201720726751U CN207081838U CN 207081838 U CN207081838 U CN 207081838U CN 201720726751 U CN201720726751 U CN 201720726751U CN 207081838 U CN207081838 U CN 207081838U
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Abstract
It the utility model is related to rainwater detection technique field, more particularly to a kind of anti-oxidant rainfall snowfall sensor of low temperature, including thermal insulator, power supply unit, detection plate, reference voltage portion, comparing section, control unit, air pump, air pump is arranged on the inner bottom part of the thermal insulator, air pump electrically connects with power supply unit, and air pump is coupled to control unit to receive control signal and responsive control signal makes air pump work.The utility model receives drive signal air pump by control unit and switched on power start-up operation, heater plate thermal insulator inner air, air pump sends out hot blast to detection plate, while improving temperature, accelerate the speed air flow on rainwater surface near detection plate, make rainwater rapid evaporation, avoid rainwater and rest on for a long time in detection plate, detection plate is corroded or is aoxidized；Meanwhile air pump sends out normal temperature air, avoid and the problem of high-temperature heating causes detection plate accelerated oxidation to fail directly is carried out to detection plate.
Description
Technical field
It the utility model is related to rainwater detection technique field, and in particular to a kind of anti-oxidant rainfall snowfall sensor of low temperature.
Background technology
Rain sensor or rain sensor are applied to the relevant departments such as meteorological observatory's (station), hydrometric station, agricultural, national defence and used
Come remote measurement liquid precipitation, precipitation intensity, precipitation beginning and ending time.It is mesh for scheduling of controlling flood, supply water, the management of hydropower reservoir station regimen
Automatic system of hydrological data acquisition and transmission, station is observed and predicted in automatic field, be Rainfall estimation sensor.At present, the rain sensor of in the market point
For optical sensor and capacitive rain quantity sensor.Optical sensor is worked according to the refraction principle of light.Condenser type
Sensor, the rainwater that capacitive rain quantity sensor the utilizes principle different with the dielectric constant of glass are made, and this circuit is relative
It is fairly simple in optical profile type, but detecting element is easily damaged because raindrop retain for a long time on capacitance type sensor, simultaneously
Because the long-time of rainwater retains the sensitivity of capacitance type sensor can be caused to be affected, rainwater is unable to rapid evaporation, again
Due to rainwater for a long time rest on the plank of detection plate cause plank is corroded or aoxidized, place humidity environment in understand pair
Circuit impacts, and can to break down during use, so needing to existing capacitive rain sensor circuit
It is further improved.
Chinese patent Authorization Notice No. CN204758847U discloses a kind of rain sensor circuit, its drip irrigation device
It is to include power supply unit, detection plate, reference voltage portion, comparing section, control unit and heating wire；The detection plate is coupled to comparing section
End of oppisite phase is simultaneously coupled to power supply unit one end, other end ground connection by a resistance；The in-phase end of the comparing section is coupled to benchmark electricity
Splenium, output end are coupled to control unit to output drive signal；The control unit is coupled to heating wire to receive driving letter
Number and responding drive signal makes heating wire be powered；The heating wire is arranged at detection plate bottom to be heated to detection plate.The reality
Can be that detection plate heats so that rainwater being capable of rapid evaporation with the new bottom that resistance wire is arranged to detection plate.
Existing rain sensor is mostly the device not heated, and the utility model solves existing skill by high-temperature heating
Some problems of art, but another technical problem is caused simultaneously.High-temperature heating easily adds the sensor panel of rain sensor
Speed oxidation, electric conductivity are deteriorated, and after a period of time, rain sensor can be caused not work or malfunction.
Utility model content
According to the deficiencies in the prior art, the utility model provides a kind of anti-oxidant rainfall snowfall sensor of low temperature, with solution
Certainly existing rain sensor rainwater stops for a long time easily aoxidizes detection plate, and existing rain sensor high-temperature heating easily makes biography
Sensor panel aoxidizes, and causes electric conductivity to be deteriorated, the technical problem for causing rain sensor not work or malfunction.
The anti-oxidant rainfall snowfall sensor of low temperature of the present utility model, including thermal insulator, power supply unit, detection plate, benchmark electricity
Splenium, comparing section, control unit, air pump；
The detection plate is arranged on the top of the thermal insulator, and one end of detection plate is coupled to the backward end of comparing section and led to
Cross a resistance and be coupled to power supply unit, to detect whether to exist rainwater and export detection signal, the other end ground connection of the detection plate；
The reference voltage portion is coupled to the end in the same direction of comparing section, to provide reference voltage；
The output end output drive signal of the comparing section；
The control unit is coupled to the output end of comparing section to receive drive signal, and output control signal；
The air pump is arranged on the inner bottom part of the thermal insulator, and the air inlet of the air pump is arranged on the outer of the thermal insulator
Portion, the gas outlet of the air pump are arranged on the inside of the thermal insulator, and the air pump electrically connects with the power supply unit, and the gas
Pump is coupled to control unit to receive control signal and responsive control signal makes air pump work.
Preferably, being additionally provided with heating plate below the inside of the thermal insulator, detection plate, the heating plate is coupled to
Control unit is to receive control signal and responsive control signal makes heating plate work；The inside of the thermal insulator is additionally provided with the first temperature
Sensor is spent, the signal output part of first temperature sensor is coupled to the control unit, the first temperature sensor inspection
The temperature surveyed inside thermal insulator, and the temperature signal is transferred to the control unit, the control unit is judged inside thermal insulator
Whether temperature controls the heating plate to stop heating or heating in the first preset temperature range.
Preferably, first preset temperature range is 20 DEG C to 30 DEG C.
Preferably, the outside of the thermal insulator is additionally provided with second temperature sensor, the second temperature sensor
Signal output part is coupled to the control unit, the temperature outside the second temperature sensor detection thermal insulator, and by the temperature
Signal is transferred to the control unit, when the control unit judges that the temperature outside thermal insulator is less than the second preset temperature, controls institute
State heater plate.
Preferably, second preset temperature is 2 DEG C.
Preferably, it is also equipped with fin in the heating plate.
Preferably, the detection plate includes plate body and detection circuit, the detection circuit surface is gold-plated, the detection line
Ventilative hole or ventilative hole slot are provided between road.
Preferably, the top droop installation of the thermal insulator.
Preferably, the roof inclination of the thermal insulator is 45 degree.
Compared with prior art, the beneficial effects of the utility model are：Rainwater is detected by detection plate, examined when rainwater falls
When on drafting board, the output end output low level signal of detection plate, and reference voltage portion output high level signal, pass through comparing section ratio
Compared with, then export high level drive signal so that start-ups operation so that air pump switches on power that control unit receives drive signal, heat
Plate heating and thermal insulation body inner air, air pump send out hot blast to detection plate, while improving temperature, accelerate detection plate rain water table nearby
The speed air flow in face, make rainwater rapid evaporation, avoid rainwater and rest on for a long time in detection plate, make detection plate by corruption
Erosion or oxidation；Meanwhile air pump send out normal temperature air, avoid directly detection plate is carried out high-temperature heating cause detection plate accelerate oxygen
The problem of changing failure.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is the positive structure schematic of detection plate of the present utility model；
Fig. 3 is circuit structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
As Figure 1-3, the anti-oxidant rainfall snowfall sensor of the low temperature of the present embodiment, including thermal insulator (1), power supply unit
(2), detection plate (3), reference voltage portion (4), comparing section (5), control unit (6), air pump (7)；
The detection plate (3) is arranged on the top of the thermal insulator (1), and one end of detection plate (3) is coupled to comparing section (5)
Backward end and power supply unit (2) is coupled to by a resistance, to detect whether to exist rainwater and export detection signal, the detection
The other end ground connection of plate (3)；
The reference voltage portion (4) is coupled to the end in the same direction of comparing section (5), to provide reference voltage；
The output end output drive signal of the comparing section (5)；
The control unit (6) is coupled to the output end of comparing section (5) to receive drive signal, and output control signal；
The air pump (7) is arranged on the inner bottom part of the thermal insulator (1), and the air inlet (71) of the air pump (7) is arranged on
The outside of the thermal insulator (1), the gas outlet (72) of the air pump (7) are arranged on the inside of the thermal insulator (1), the air pump
(7) electrically connected with the power supply unit (2), and the air pump (7) is coupled to control unit (6) to receive control signal and response control
Signal makes air pump (7) work.
The anti-oxidant rainfall snowfall sensor of low temperature of the present embodiment detects rainwater at work, by detection plate (3), works as rain
Water falls when in detection plate (3), the output end output low level signal of detection plate (3), and reference voltage portion (4) output high level
Signal, compared by comparing section (5), then export the drive signal of high level so that control unit (6), which receives drive signal, to be made to bring about the desired sensation
Pump (7) switches on power start-up operation, and air pump (7) is blown to detection plate (3), makes rainwater rapid evaporation.
Further, the inside of the thermal insulator in the present embodiment (1), detection plate are additionally provided with heating plate below (3)
(8), the heating plate (8) is coupled to control unit (6) to receive control signal and responsive control signal makes heating plate (8) work；
The inside of the thermal insulator (1) is additionally provided with the first temperature sensor (9), the signal output of first temperature sensor (9)
End is coupled to the control unit (6), the internal temperature of the first temperature sensor (9) detection thermal insulator (1), and by the temperature
Signal is transferred to the control unit (6), and whether the control unit (6) judges the internal temperature of thermal insulator (1) at 20 DEG C to 30 DEG C
In temperature range, and the heating plate (8) is controlled to stop heating or heating.
Further, fin (81) is also equipped with the heating plate in the present embodiment (8), is made caused by heating plate (8)
Heat is taken a walk arrive whole thermal insulator (1) rapidly.
Further, the detection plate in the present embodiment (3) includes plate body (31) and detection circuit (32), the detection circuit
(32) surface gold-plating, ventilative hole slot (33) is provided between detection circuit (32), air-vent slot number is tiny, falls and is detecting
The globule on plate, due to surface tension, thermal insulator (1) is not penetrated into, therefore also will not be to thermal insulator (1) inside
Circuit impacts.
Further, the top droop installation of the thermal insulator in the present embodiment (1), roof inclination are 45 degree.
Embodiment 2：
As Figure 1-3, on the basis of embodiment 1, present embodiment discloses a kind of anti-oxidant rainfall snowfall of low temperature to pass
Sensor, the outside of the thermal insulator (1) in the present embodiment are additionally provided with second temperature sensor (10), the second temperature sensor
(10) signal output part is coupled to the control unit (6), second temperature sensor (10) detection thermal insulator (1) outside
Temperature, and the temperature signal is transferred to the control unit (6), the control unit (6) judges that the outside temperature of thermal insulator (1) is low
When 2 DEG C, the heating plate (8) is controlled to heat.The present embodiment detects thermal insulator (1) outside by second temperature sensor (10)
Temperature, if outside air temperature be less than 2 DEG C, control unit (6) heating plate (8) heating.When ambient weather is snowfall, snow
Fall in detection plate (3), water is melted into due to the heat effect of heating plate, so as to play a part of detecting snowfall, solve
General rain sensor can not detect the technical problem of snowfall；Also, the air-flow of thermal insulator (1) flows upward inside will can cover
The snow cover covered above detection plate (3) blows off, and makes residual accumulated snow be unlikely to have influence on current snowfall situation detection.
It should be noted that herein, such as first and second etc relational terms are used merely to an entity
Either operation makes a distinction with another entity or operation, and not necessarily requires and either imply between these entities or operation
Any this actual relation or order be present.Moreover, term " comprising ", "comprising" or other variants are intended to non-row
His property includes, so that process, method, article or equipment including a series of elements not only include those key elements, also
Including the other element being not expressly set out.
Preferred embodiment of the present utility model is the foregoing is only, not to limit the utility model, should be referred to
Go out, for those skilled in the art, on the premise of the application principle is not departed from, can also make some
Improvements and modifications, all within the spirit and principles of the utility model, any modification, equivalent substitution and improvements made etc., all should
It is considered as within the scope of protection of the utility model.
Claims (9)
- A kind of 1. anti-oxidant rainfall snowfall sensor of low temperature, it is characterised in that：Including thermal insulator, power supply unit, detection plate, benchmark electricity Splenium, comparing section, control unit, air pump；The detection plate is arranged on the top of the thermal insulator, and one end of detection plate is coupled to the backward end of comparator and by one Resistance is coupled to power supply unit, to detect whether to exist rainwater and export detection signal, the other end ground connection of the detection plate；The reference voltage portion is coupled to the end in the same direction of comparator, to provide reference voltage；The output end output drive signal of the comparator；The control unit is coupled to the output end of comparator to receive drive signal, and output control signal；The air pump is arranged on the inner bottom part of the thermal insulator, and the air inlet of the air pump is arranged on the outside of the thermal insulator, The gas outlet of the air pump is arranged on the inside of the thermal insulator, and the air pump electrically connects with the power supply unit, and the air pump Control unit is coupled to receive control signal and responsive control signal makes air pump work.
- A kind of 2. anti-oxidant rainfall snowfall sensor of low temperature as claimed in claim 1, it is characterised in that：The thermal insulator it is interior Heating plate is additionally provided with below portion, detection plate, the heating plate is coupled to control unit to receive control signal and response control Signal makes heating plate work；The inside of the thermal insulator is additionally provided with the first temperature sensor, first temperature sensor Signal output part is coupled to the control unit, the temperature inside the first temperature sensor detection thermal insulator, and by the temperature Signal is transferred to the control unit, and the control unit judges temperature inside thermal insulator whether in the first preset temperature range, And the heating plate is controlled to stop heating or heating.
- A kind of 3. anti-oxidant rainfall snowfall sensor of low temperature as claimed in claim 2, it is characterised in that：Described first default temperature It is 20 DEG C to 30 DEG C to spend scope.
- A kind of 4. anti-oxidant rainfall snowfall sensor of low temperature as claimed in claim 2, it is characterised in that：Outside the thermal insulator Portion is additionally provided with second temperature sensor, and the signal output part of the second temperature sensor is coupled to the control unit, described Temperature outside second temperature sensor detection thermal insulator, and the temperature signal is transferred to the control unit, the control unit When judging that the temperature outside thermal insulator is less than the second preset temperature, the heater plate is controlled.
- A kind of 5. anti-oxidant rainfall snowfall sensor of low temperature as claimed in claim 4, it is characterised in that：Described second default temperature Spend for 2 DEG C.
- A kind of 6. anti-oxidant rainfall snowfall sensor of low temperature as any one of claim 2-5, it is characterised in that：It is described Fin is also equipped with heating plate.
- A kind of 7. anti-oxidant rainfall snowfall sensor of low temperature as any one of claim 1-5, it is characterised in that：It is described Detection plate includes plate body and detection circuit, and the detection circuit surface is gold-plated, and ventilative hole is provided between the detection circuit Or ventilative hole slot.
- A kind of 8. anti-oxidant rainfall snowfall sensor of low temperature as any one of claim 1-5, it is characterised in that：It is described The top droop installation of thermal insulator.
- A kind of 9. anti-oxidant rainfall snowfall sensor of low temperature as claimed in claim 8, it is characterised in that：The top of the thermal insulator Portion inclination angle is 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720726751.0U CN207081838U (en) | 2017-06-21 | 2017-06-21 | A kind of anti-oxidant rainfall snowfall sensor of low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720726751.0U CN207081838U (en) | 2017-06-21 | 2017-06-21 | A kind of anti-oxidant rainfall snowfall sensor of low temperature |
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| Publication Number | Publication Date |
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| CN207081838U true CN207081838U (en) | 2018-03-09 |
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| CN201720726751.0U Active CN207081838U (en) | 2017-06-21 | 2017-06-21 | A kind of anti-oxidant rainfall snowfall sensor of low temperature |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422759A (en) * | 2017-06-21 | 2017-12-01 | 山东英楷隆科技发展有限公司 | A kind of anti-oxidant rainfall snowfall sensor of low temperature |
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- 2017-06-21 CN CN201720726751.0U patent/CN207081838U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422759A (en) * | 2017-06-21 | 2017-12-01 | 山东英楷隆科技发展有限公司 | A kind of anti-oxidant rainfall snowfall sensor of low temperature |
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