CN104142303B - Dust induction apparatus - Google Patents

Dust induction apparatus Download PDF

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Publication number
CN104142303B
CN104142303B CN201410387405.5A CN201410387405A CN104142303B CN 104142303 B CN104142303 B CN 104142303B CN 201410387405 A CN201410387405 A CN 201410387405A CN 104142303 B CN104142303 B CN 104142303B
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CN
China
Prior art keywords
dust
detecting instrument
current detecting
solar cell
cell panel
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Application number
CN201410387405.5A
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Chinese (zh)
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CN104142303A (en
Inventor
李开妍
李佳艳
苏文永
谭毅
孙欢伟
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大连理工大学
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Priority to CN201410387405.5A priority Critical patent/CN104142303B/en
Publication of CN104142303A publication Critical patent/CN104142303A/en
Application granted granted Critical
Publication of CN104142303B publication Critical patent/CN104142303B/en

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Abstract

The invention discloses a kind of dust induction apparatus, including: for sending the luminescence unit in monochromatic light exposure solar cell panel dust region;For receiving the light that solar cell panel dust region is reflected, and resistance is with the strong and weak corresponding photoconductive resistance changed of the light received;It is serially connected with described photoconductive resistance and is connected in electric power loop, for detecting the current detecting instrument of described electric power loop curent change;Connect current detecting instrument, for size of current I detected according to current detecting instrumenti, the maximum current value I that can measure in conjunction with described current detecting instruments, according to formula Ip=Is‑IiObtain covering the dust thickness nominal value I in described solar cell panel dust regionpProcessing unit;And connection processing unit, for the dust thickness nominal value I that described processing unit is obtainedpCarry out the display unit shown;Present invention achieves the dust thickness that detection solar panel surface easily and effectively covers, it is simple to remind related personnel to perform corresponding solar panel cleaning.

Description

Dust induction apparatus

Technical field

The present invention relates to a kind of dust detection, be specially a kind of dust induction apparatus.

Background technology

Solar panel is by photoelectric effect or photochemistry by absorbing sunlight, by solar radiant energy Effect is converted directly or indirectly into the device of electric energy, although the solar panel market demand in recent years Very big, but the energy conversion rate of solaode is low always affects its key factor using and promoting, Except the problem of the material such as monocrystal silicon and polysilicon itself is that energy changes low reason, another one causes energy It is then that solar panel suffers dust covering that amount changes low factor, has a lot of related application examples at present, When in February, 2004 " opportunity " number just starts mars exploration task, up to the solar-electricity of 1.3 meters above it Pond plate can provide the electric energy of 900 watt-hours every day, but in June, 2013, along with " opportunity " number too Sun can slowly be stained with Mars dust on cell panel, the electric energy that solar panel provides every day fall below 500~ 600 watt-hours, to such an extent as to scientist NASA has to, by order, allow two Marsokhod rest in towards south as far as possible Slope on so that they can receive more sunlight, the electricity that however Marsokhod provides every day Amount still cannot improve.Due to the existence of this problem, many solar power plants are using certain time limit Rear be badly in need of cleaning because accumulation over time, dust and sandy soil etc. fall in solar panel Back stroke no Go, not only have a strong impact on generating efficiency, and surface dirt is to the open-circuit voltage of solar module, short circuit The characterisitic parameter such as electric current and output also has a significant impact, by test result indicate that: short circuit current can be with The increase of dust quality and reduce rapidly, and open-circuit voltage reduces relatively slow, the generated energy thus brought Loss is up to 9%.Meanwhile, the sand and dust quantity in solar panel surface unit area, the comparison of sand and dust yardstick Penetrate the wavelength at the light on solar panel surface also to have a significant impact;In addition, solar module In use, if there being a piece of solaode individually to be blocked by leaves birds droppings etc., then be individually blocked Solaode will generate heat damage under sunburst irradiates, and then cause whole solar module Damaging, here it is so-called tropical island effect, these all can cause imponderable infringement to solar panel.

Summary of the invention

The present invention is directed to the proposition of problem above, and develop a kind of can the ash of sense object surface dirt thickness Dirt induction apparatus.

The technological means of the present invention is as follows:

A kind of dust induction apparatus, including:

For sending the luminescence unit in monochromatic light exposure solar cell panel dust region;

For receiving the light that solar cell panel dust region is reflected, and resistance is with the strong and weak phase of the light received The photoconductive resistance that should change;

It is serially connected with described photoconductive resistance and is connected in electric power loop, be used for detecting described electric power loop electric current and become The current detecting instrument changed;

Connect current detecting instrument, for size of current I detected according to current detecting instrumenti, in conjunction with described electric current The maximum current value I that detector can be measureds, according to formula Ip=Is-IiObtain covering in described solar-electricity The dust thickness nominal value I of pond plate dust areapProcessing unit;

And connection processing unit, for the dust thickness nominal value I that described processing unit is obtainedpShow The display unit shown;

Further, described luminescence unit is made up of multiple LED monochromatic burners of annular array;

It addition, also include cylindrical shell;

Described display unit is arranged on described cylindrical shell end face;

Described luminescence unit is arranged at the bottom center of described cylindrical shell, and described photoconductive resistance is arranged on institute State on the bottom surface remainder of cylindrical shell;

The monochromatic light that described luminescence unit sends irradiates solar cell panel dust region at a certain angle;

It addition, also include:

For connecting the attaching plug of external power source, this attaching plug utilizes external power source to carry for dust induction apparatus Power supply source;

It is arranged on cylindrical shell sidewall, for controlling the switch of described on/off;

Further, described current detecting instrument is sensitive galvanometer.

Owing to have employed technique scheme, the dust induction apparatus that the present invention provides, it is achieved that easily and effectively The dust thickness that detection solar panel surface covers, and then be easy to remind related personnel to perform the most too Sun energy cell panel cleaning, it is to avoid when the generated energy brought after the accumulation to a certain extent of this dust thickness damages Lose, extend using and promoting of the service life of solar panel, beneficially solar panel, knot Structure is simple, volume is moderate, convenient and flexible operation, practical, no waste discharge, very environmental protection, and Solar panel is not damaged.

Accompanying drawing explanation

Fig. 1 is the structured flowchart of the present invention;

Fig. 2 is the structural representation of the present invention;

Fig. 3 is the structural representation of cylindrical shell bottom surface of the present invention.

In figure: 1, cylindrical shell, 2, switch, 3, display unit, 4, attaching plug, 5, luminescence unit, 6, photoconductive resistance, 7, current detecting instrument, 8, processing unit.

Detailed description of the invention

A kind of dust induction apparatus as shown in Figure 1, Figure 2 and Figure 3, including: it is used for sending monochromatic light exposure too The luminescence unit 5 of sun energy cell panel dust area;For receiving what solar cell panel dust region was reflected Light, and resistance is with the strong and weak corresponding photoconductive resistance 6 changed of the light received;Mutually go here and there with described photoconductive resistance 6 It is connected in electric power loop, for detecting the current detecting instrument 7 of described electric power loop curent change;Connect electric current Detector 7, for size of current I detected according to current detecting instrument 7i, in conjunction with described current detecting instrument 7 The maximum current value I that can measures, according to formula Ip=Is-IiObtain covering at described solar panel ash The dust thickness nominal value I in dirt regionpProcessing unit 8;And connect processing unit 8, for described place The dust thickness nominal value I that reason unit 8 obtainspCarry out the display unit 3 shown;Further, described luminescence Unit 5 is made up of multiple LED monochromatic burners of annular array;It addition, also include cylindrical shell 1;Described display Unit 3 is arranged on described cylindrical shell 1 end face;Described luminescence unit 5 is arranged on described cylindrical shell 1 At bottom center, described photoconductive resistance 6 is arranged on the bottom surface remainder of described cylindrical shell 1;Described The monochromatic light that luminescence unit sends irradiates solar cell panel dust region at a certain angle;It addition, also include: For connecting the attaching plug 4 of external power source, this attaching plug 4 utilizes external power source to provide for dust induction apparatus Power supply;It is arranged on cylindrical shell 1 sidewall, for controlling the switch 2 of described on/off;Described current detecting Instrument 7 is sensitive galvanometer.Described LED monochromatic burner has 8.

During use, dust induction apparatus of the present invention first being connected external power source, Guan Bi switch, when dust sense Answer device when solar panel surface scan, the monochromatic light that luminescence unit sends can be gold-tinted or purple light with Certain angle irradiates solar cell panel dust region, and this certain angle can take 5 °, due to dust granule pair The absorption of light and scattering, can reduce along with the increase of dust thickness then reflexes to the light at photoconductive resistance, enter one Step ground, photoconductive resistance value can increase, and the electric current that photoconductive resistance place electric power loop passes through can reduce, and electric current is examined Survey instrument correspondence and the respective change of this electric current, the electric current that processing unit detects according to current detecting instrument 7 detected Size Ii, the maximum current value I that can measure in conjunction with described current detecting instrument 7s, according to formula Ip=Is-Ii? To the dust thickness nominal value I covered in described solar cell panel dust regionp, and then realize passing through dust Thickness nominal value IpVisual representation covers the dust thickness change in described solar cell panel dust region, and As dust thickness nominal value IpWhen reaching certain threshold value, the corresponding solar panel cleaning of corresponding execution; Described current detecting instrument 7 can be sensitive galvanometer;Described processing unit 8 can be obtained by display unit 3 Dust thickness nominal value IpShow, i.e. show different registrations for different dust thickness correspondences. Present disclosure additionally applies for the detection of other instrument surface dirt thickness higher to required precision, to check be No reach cleaning requirement.

The dust induction apparatus that the present invention provides, it is achieved that detection solar panel surface easily and effectively covers Dust thickness, and then be easy to remind related personnel perform corresponding solar panel cleaning, it is to avoid When the generated energy loss brought after the accumulation to a certain extent of this dust thickness, extend solar panel The using and promoting of service life, beneficially solar panel, simple in construction, volume are moderate, operation is simple The most flexible, practical, no waste discharge, very environmental protection, and solar panel is not damaged; It addition, described luminescence unit is arranged at the bottom center of described cylindrical shell, described photoconductive resistance is arranged on On the bottom surface remainder of described cylindrical shell, beneficially photoconductive resistance can receive reflection widely without dead angle Light, adds the absorption area of reflection light.

The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention not office Being limited to this, any those familiar with the art is in the technical scope that the invention discloses, according to this The technical scheme of invention and inventive concept thereof in addition equivalent or change, all should contain the protection in the present invention Within the scope of.

Claims (6)

1. a dust induction apparatus, it is characterised in that including:
For sending the luminescence unit (5) in monochromatic light exposure solar cell panel dust region;
For receiving the light that solar cell panel dust region is reflected, and resistance is with the strong and weak phase of the light received The photoconductive resistance (6) that should change;
It is serially connected with described photoconductive resistance (6) and is connected in electric power loop, be used for detecting described electric power loop electricity The current detecting instrument (7) of rheology;
Connect current detecting instrument (7), for size of current I detected according to current detecting instrument (7)i, knot Close the maximum current value I that described current detecting instrument (7) can be measureds, according to formula Ip=Is-IiCovered Cover the dust thickness nominal value I in described solar cell panel dust regionpProcessing unit (8);
And connect processing unit (8), for the dust thickness nominal value that described processing unit (8) is obtained IpCarry out the display unit (3) shown.
A kind of dust induction apparatus the most according to claim 1, it is characterised in that described luminescence unit (5) It is made up of multiple LED monochromatic burners of annular array.
A kind of dust induction apparatus the most according to claim 1, it is characterised in that also include cylindrical shell (1);
Described display unit (3) is arranged on described cylindrical shell (1) end face;
Described luminescence unit (5) is arranged at the bottom center of described cylindrical shell (1), described photosensitive electricity Resistance (6) is arranged on the bottom surface remainder of described cylindrical shell (1).
A kind of dust induction apparatus the most according to claim 1, it is characterised in that described luminescence unit sends Monochromatic light irradiate solar cell panel dust region at a certain angle.
A kind of dust induction apparatus the most according to claim 3, it is characterised in that also include:
For connecting the attaching plug (4) of external power source, this attaching plug (4) utilizes external power source for dust Induction apparatus provides power supply;
It is arranged on cylindrical shell (1) sidewall, for controlling the switch (2) of described on/off.
A kind of dust induction apparatus the most according to claim 1, it is characterised in that described current detecting instrument (7) For sensitive galvanometer.
CN201410387405.5A 2014-08-06 2014-08-06 Dust induction apparatus CN104142303B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410387405.5A CN104142303B (en) 2014-08-06 2014-08-06 Dust induction apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410387405.5A CN104142303B (en) 2014-08-06 2014-08-06 Dust induction apparatus

Publications (2)

Publication Number Publication Date
CN104142303A CN104142303A (en) 2014-11-12
CN104142303B true CN104142303B (en) 2016-12-07

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104690024A (en) * 2015-03-26 2015-06-10 北京京东方能源科技有限公司 Photovoltaic power station cleaning system
CN104894834A (en) * 2015-06-26 2015-09-09 苏州市吴中区大明针织漂染有限公司 Photoelectric abb finishing device
CN108519312B (en) * 2018-03-30 2020-06-02 重庆山楂树科技有限公司 Device for detecting gas particles
TWI698083B (en) * 2019-03-19 2020-07-01 友達光電股份有限公司 Surface dirt measurement method and measurement apparatus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0733894B1 (en) * 1995-03-24 2003-05-07 Nohmi Bosai Ltd. Sensor for detecting fine particles such as smoke
DE10221954B3 (en) * 2002-05-14 2004-01-15 Msa Auer Gmbh Infrared sensor for gas measuring devices with explosion protection approval
CN1707270B (en) * 2004-06-08 2010-10-06 亚洲光学股份有限公司 Environment measuring apparatus
JP4788296B2 (en) * 2005-11-02 2011-10-05 パナソニック株式会社 Electric vacuum cleaner
CN101178352A (en) * 2006-11-07 2008-05-14 英业达股份有限公司 System and method for determining the mount of accumulated dust by light ray intensity

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Granted publication date: 20161207

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