CN209525334U - A kind of air quality sensor protective device - Google Patents
A kind of air quality sensor protective device Download PDFInfo
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- CN209525334U CN209525334U CN201920254797.6U CN201920254797U CN209525334U CN 209525334 U CN209525334 U CN 209525334U CN 201920254797 U CN201920254797 U CN 201920254797U CN 209525334 U CN209525334 U CN 209525334U
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Abstract
The utility model discloses a kind of air quality sensor protective device, including protection shell and Kato；The Kato is used to for air quality sensor being fixed on the middle part of protection shell；The protection shell is tubular structure, is equipped with wind-guiding exhaust fan in an open end of protection shell, and the other end is equipped with the wet device of temperature adjustment control, and Temperature Humidity Sensor in cabin is additionally provided in protection shell and is used for the temperature and humidity in monitoring and protecting shell；The wet device of temperature adjustment control is made of air intake passage, refrigerating and heating combined equipment and moisture absorption filter, and the refrigerating and heating combined equipment and moisture absorption filter are set in the air intake passage；Temperature Humidity Sensor out of my cabin is additionally provided on the outside of air intake passage to be used to monitor air inlet extravehicular environment temperature and humidity.It is for solving the problems, such as that hot wet equal physical environments are unstable so that air borne sensor is easy drift, measurement numerical value inaccuracy in the prior art, exclude influence of the environmental factor to air borne sensor, so that the data measured are accurate.
Description
Technical field
The utility model relates to Detection of Air Quality fields, and in particular to a kind of air quality biography of anti-physical environmental disturbances
Sensor protective device.
Background technique
In recent years, China's air pollution related disease death rate rapid growth, the Central Committee of the Communist Party of China, State Council's version are " " in health
2030 " planning outline of state " it is intended to build health environment, the indoor air quality of Chinese city building becomes common people's worry, leader
It is concerned about, the great livelihood issues of social concerns.Currently, the common people compare concern and to the biggish indoor pollutants of Health Impact
Mainly there are formaldehyde, TVOCs and PM2.5 etc..Environmental contaminants context of detection indoors, authoritative institution mostly uses experimental analysis at present
Mode, detection data is accurate, but it is expensive to detect high-grade, precision and advanced instrument price used, and data analyzing speed is slow, real-time
Not enough.As the demand that the common people monitor indoor environmental pollution is significantly greatly increased and sensor technology and the information processing technology
Development is flooded with all kinds of simple detectors and monitoring sensor in the market, can be in the self-service sampling of monitoring field, and monitoring data are real
When analyze.Currently, common Fundamentals of Sensors are respectively as follows: CO in the market2Detection mostly uses non-dispersive infrared absorption or electrochemical
Formula principle, formaldehyde sensor are electric chemical formula principle, and PM2.5 is laser scattering type, and TVOCs is PID photoion formula or partly leads
Body formula.
But commonly there is following problems for the sensor of existing monitoring air quality: sensor accuracy is in standard work
It is demarcated under condition (such as 20 DEG C of temperature), and most of indoor environment sensor local environment is unstable, will receive temperature, humidity
Or electromagnetism influence and data wander occurs, precision is not high.2, sensor is exposed in indoor environment, and more sensitive, can
The interference such as the activity, object collision and air conditioner ventilation of people can be will receive.3, sensor passive detection, part position is far from people
Body respiratory region and in air-flow quiescent centre, then pollutant concentration of its detection and human body respiration area have larger difference.These all can
Cause prohibited data detection of the sensor in practical indoor environment true.And the relevant technologies are only from raising sensor and electricity in the market
Road signaling module precision itself is set out, and lacks and the architecture indoor air quality O&M Key Common Technologies of actual environment is combined to grind
Study carefully.
Therefore, for actual O&M environment variability complexity, it is necessary to provide a kind of air matter of anti-interference function
Quantity sensor protective device, to improve the accuracy of sensor measurement.
Utility model content
In view of the above shortcomings of the prior art, utility model aims to solve the shakinesses of environment in the prior art
Determine the problem so that the easy drift of air borne sensor, measurement numerical value inaccuracy, a kind of air quality sensor protective device be provided,
To exclude influence of the environmental factor to air borne sensor, so that the data of measurement are accurate.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution:
A kind of air quality sensor protective device, including protection shell and Kato；The Kato is for passing air quality
Sensor is fixed on the middle part of protection shell；The protection shell is tubular structure, is equipped with wind-guiding in an open end of protection shell
Exhaust fan, the other end are equipped with the wet device of temperature adjustment control, and Temperature Humidity Sensor in cabin is additionally provided in protection shell and is used for monitoring and protecting
Temperature and humidity in shell；
The wet device of temperature adjustment control is made of air intake passage, refrigerating and heating combined equipment and moisture absorption filter, the cooling and warming
Device and moisture absorption filter are set in the air intake passage；Temperature Humidity Sensor out of my cabin is additionally provided on the outside of air intake passage to be used for
Monitor air inlet extravehicular environment temperature and humidity.
Further, the refrigerating and heating combined equipment is that semiconductor refrigerating heats component.
Further, the moisture absorption filter is made of filter screen and desiccant.
Further, the protection shell is made of insulation and thermal insulation and electromagnetism interference material, or protection interior of shell is equipped with
Insulation and thermal insulation and electromagnetism interference protective layer.
Further, mounting base for fixing is additionally provided on protection shell.
Further, the air quality sensor is CO2Sensor, TVOC sensor, formaldehyde sensor or PM2.5 sensing
Device.
Compared with prior art, the utility model has the advantages that
1, the utility model design by protection shell, wind-guiding exhaust fan, temperature adjustment control is wet is installed on integrated structure, Neng Goupai
Except extraneous interference, such as activity, object collision and the air conditioner ventilation of people etc., stablize the air stream around sensor, temperature
It is maintained in metastable range with humidity, avoids influence of the physical environment to air quality sensor, it is ensured that air quality
The detection accuracy of sensor is high, detection data is accurate.
2, it further, is provided with wind-guiding exhaust fan, air flowing can be accelerated, even if air borne sensor is located remotely from human body
Breathing and air-flow quiescent centre, also can really react current air conditions, improve the accuracy of detection.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of air quality sensor protective device of the utility model.
Fig. 2 is that semiconductor refrigerating heats assembly principle figure in a kind of air quality sensor protective device of the utility model.
Fig. 3 is a kind of schematic view of the mounting position of air quality sensor protective device of the utility model: a) ceiling is solid
It is fixed；B) it lifts；C) metope is fixed；D) bracket is placed.
In figure: 201- air quality sensor, 202- Kato, 203- protect shell, 204- moisture absorption filter, 205- refrigeration
Heating combined equipment, 206- Temperature Humidity Sensor out of my cabin, Temperature Humidity Sensor in the cabin 207-, 208- wind-guiding exhaust fan, 209- mounting base,
Arrow indicates airflow direction.
Specific embodiment
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail.
Embodiment 1:
Referring to Fig. 1, a kind of air quality sensor protective device, including shell 203 is protected, the protection shell 203 is
Tubular structure, such as cylinder or rectangular drum like；The protection shell 203 is made of insulation and thermal insulation and electromagnetism interference material, or
It protects and is equipped with insulation and thermal insulation and electromagnetism interference protective layer inside shell 203.It protects in shell 203 and is equipped with for installing air matter
Air quality sensor 201 is fixed on the middle part of protection shell 203 by the Kato 202 of quantity sensor 201；In such manner, it is possible to avoid
Interference of the air quality sensor 201 by physical impacts, electromagnetism, heat radiation and airflow fluctuation etc..When it is implemented, the card
Support 202 includes bracket, and one end of the bracket and protection shell 203 are fixed, have a pedestal on the other end of the bracket, described
Air quality sensor 201 is removably attachable on the pedestal, is conveniently replaceable different air quality sensors 201.It is protecting
The open end for protecting shell 203 is equipped with wind-guiding exhaust fan 208, and the other end is equipped with the wet device of temperature adjustment control.The wet device of temperature adjustment control
It is made of air intake passage, refrigerating and heating combined equipment 205 and moisture absorption filter 204, the refrigerating and heating combined equipment 205 and moisture absorption filter
204 are set in the air intake passage, and close to the passway of the air intake passage.Specifically, the refrigerating and heating combined equipment 205 is
Semiconductor refrigerating heats component, and the schematic diagram which heats component is as shown in Figure 2.Semiconductor refrigerating heats component can
To use the single-chip microcontroller temperature control method based on semiconductor refrigerating, the cooling and warming to the interior air that installs pipes is realized.When one piece of N-type
Semiconductor material and one piece of p-type semiconductor material are coupled to galvanic couple clock synchronization, after connecting DC current in this circuit, can produce
The transfer of raw energy, electric current absorb heat by the connector that N-type element flows to p-type element, become cold end；N-type is flowed to by p-type element
The connector of element discharges heat, becomes hot end.Heat absorption and exothermic size are the size and semiconductor material N, P by electric current
Element logarithm determine, the refrigeration for importing air may be implemented according to the thermoelectric effect of the thermoelectric cooling of semiconductor.When need
When heating, electrode assembly can be reversely installed or the polar method of exchange electrodeposition is realized.Cooling and warming component can also assist using
The additional heating refrigeration modes of resistance wire cold-storage phase-changing energy storage material on the rocks.Temperature and humidity out of my cabin is additionally provided on the outside of air intake passage
Sensor 206 is for monitoring air inlet extravehicular environment temperature and humidity.Temperature Humidity Sensor in cabin is additionally provided in protection shell 203
207 for the temperature and humidity in monitoring and protecting shell 203；Temperature Humidity Sensor 207 is located at air quality sensor 201 in the cabin
Near, air themperature and humidity for space locating for air girder sensor in monitoring device.In this way, according to temperature and humidity in cabin
The temperature and humidity that sensor 207 and out of my cabin Temperature Humidity Sensor 206 measure is freezed or is made in refrigerating and heating combined equipment 205 to control
The starting or disconnection of heat, and whether determining desiccant replacement, accurately and reliably.
When it is implemented, the moisture absorption filter 204 is made of filter screen and desiccant.Desiccant and filter screen are with making a return journey
Enter the air moisture content of device except cooling moisture condensation and reduce excessively high air humidity, is conducive to keep air quality sensor
201 in the working environment that humidity is suitable for, to improve the precision of measurement.In this way, air enters outside protection from air intake passage
In shell 203, and by the effect of refrigerating and heating combined equipment 205 and moisture absorption filter 204, will protect the temperature inside shell 203 with
Moisture stable makes the air entered in protection shell 203 in the critical field that air quality sensor 201 works
Temperature and humidity is stablized, and provides stable, standard working environment for air quality sensor 201.Wind-guiding exhaust fan 208 is used to draw
Flow guide discharge, to reinforce the sensitivity to indoor air quality monitoring, while being conducive to air quality sensor 201 and partly leading
The heat loss through convection of body cooling and warming component.Since wind-guiding exhaust fan 208 can will protect the air in shell 203 endlessly to arrange
Out, promote more air to enter in protection shell 203 from air intake passage, the flowing of surrounding air is accelerated, so that air matter
The data that quantity sensor 201 measures are more accurate.
When in use, the air quality sensor is CO2Sensor, TVOC sensor, formaldehyde sensor or PM2.5 are passed
Sensor.Specifically, the CO2Sensor is using non-dispersive infrared is absorption or the CO of electric chemical formula principle2Sensor.It is described
TVOC sensor is the TVOC sensor using PID photoion formula or metal-oxide semiconductor (MOS) formula principle.The formaldehyde sensing
Device is the formaldehyde sensor using electric chemical formula principle.The PM2.5 sensor is to be passed using the PM2.5 of laser scattering type principle
Sensor.
The course of work: when in use, air quality sensor 201 being prevented on the pedestal of the Kato 202, and by its
It is fixed.Opening wind-guiding exhaust fan 208 makes to protect the air in shell 203 to flow, and is protected by the wet device control of control temperature adjustment control
Aerial temperature and humidity is in following range in shield shell 203: temperature is greater than 16 DEG C less than 24 DEG C, and relative humidity is less than 80%.At one section
Between after (at least 5min), open air quality sensor 201 carry out Detection of Air Quality.After detection, temperature adjustment control is closed
Wet device and wind-guiding exhaust fan 208 complete measurement.
Embodiment 2:
On the basis of embodiment 1,203 inner wall of protection shell is additionally provided with detachable phase-change accumulation energy block, in varying numbers,
It integrally or individually can separately dismantle, can be in advance in the low temperature environments cold-storage such as refrigerator, and replacement daily can be determined according to room temperature
Amount.In addition, being additionally provided with mounting base 209 for fixing on protection shell 203.Referring to Fig. 3, mounting base 209 can be using fixation
The air quality sensor protective device is fixed on the interiors such as metope or ceiling by the form of buckle.Three can also be used
The form of foot prop is fixed indoors, provides support to the installation of air quality sensor 201.
Air quality sensor protective device provided by the utility model can exclude extraneous interference, such as the work of people
Dynamic, object collision and air conditioner ventilation etc., stablize the air stream around sensor, temperature and humidity is maintained at metastable model
In enclosing, influence of the physical environment to air quality sensor is avoided, so that the detection accuracy of air quality sensor is high, inspection
Measured data is accurate.
Finally, it should be noted that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application technology
Scheme, those skilled in the art should understand that, those are modified to the technical solution of the utility model or are equal
Replacement, without departing from the objective and range of the technical program, should all cover in the scope of the claims of the utility model.
Claims (6)
1. a kind of air quality sensor protective device, which is characterized in that including protection shell and Kato；The Kato is used for will be empty
Makings quantity sensor is fixed on the middle part of protection shell；The protection shell is tubular structure, in an open end of protection shell
Equipped with wind-guiding exhaust fan, the other end is equipped with the wet device of temperature adjustment control, is additionally provided with Temperature Humidity Sensor in cabin in protection shell and is used for
Temperature and humidity in monitoring and protecting shell；
The wet device of temperature adjustment control is made of air intake passage, refrigerating and heating combined equipment and moisture absorption filter, the refrigerating and heating combined equipment
It is set in the air intake passage with moisture absorption filter；Temperature Humidity Sensor out of my cabin is additionally provided on the outside of air intake passage to be used to monitor
Air inlet extravehicular environment temperature and humidity.
2. air quality sensor protective device according to claim 1, which is characterized in that the refrigerating and heating combined equipment is half
Conductor cooling and warming component.
3. air quality sensor protective device according to claim 1, which is characterized in that the moisture absorption filter is by filtering
Net and desiccant composition.
4. air quality sensor protective device according to claim 1, which is characterized in that the protection shell is exhausted by insulating
Heat and electromagnetism interference material are made, or protection interior of shell is equipped with insulation and thermal insulation and electromagnetism interference protective layer.
5. air quality sensor protective device according to claim 1, which is characterized in that be additionally provided with use on protection shell
In fixed mounting seat.
6. air quality sensor protective device according to claim 1, which is characterized in that the air quality sensor is
CO2Sensor, TVOC sensor, formaldehyde sensor or PM2.5 sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920254797.6U CN209525334U (en) | 2019-02-28 | 2019-02-28 | A kind of air quality sensor protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920254797.6U CN209525334U (en) | 2019-02-28 | 2019-02-28 | A kind of air quality sensor protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209525334U true CN209525334U (en) | 2019-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920254797.6U Active CN209525334U (en) | 2019-02-28 | 2019-02-28 | A kind of air quality sensor protective device |
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| Country | Link |
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| CN (1) | CN209525334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413803A (en) * | 2020-11-19 | 2021-02-26 | 广东美的制冷设备有限公司 | Air purification method, air purifier and storage medium |
-
2019
- 2019-02-28 CN CN201920254797.6U patent/CN209525334U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413803A (en) * | 2020-11-19 | 2021-02-26 | 广东美的制冷设备有限公司 | Air purification method, air purifier and storage medium |
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