CN203606302U - Device for carrying out solar panel defect detection by using thermal infrared imager - Google Patents
Device for carrying out solar panel defect detection by using thermal infrared imager Download PDFInfo
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- CN203606302U CN203606302U CN201320754346.1U CN201320754346U CN203606302U CN 203606302 U CN203606302 U CN 203606302U CN 201320754346 U CN201320754346 U CN 201320754346U CN 203606302 U CN203606302 U CN 203606302U
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- thermal infrared
- infrared imager
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Abstract
The utility model discloses a device for carrying out solar panel defect detection by using a thermal infrared imager. According to the device, a U-shaped plate is mounted on one side of the upper part of a framework; the U-shaped plate is provided with a motor and is connected with a transmission shaft by a shaft coupler; a transmission piece is mounted at one end of the transmission shaft; the transmission piece is fixedly connected with right-angle faces of a right-angle clamping groove plate; a notch is formed in the middle of the horizontal right-angle face; turning edges for supporting a solar panel are arranged at the two edges of the notch; an upper supporting panel is mounted on the top face of the framework and a lower supporting panel is mounted in the middle of the framework; a layer of light shielding cloth is stuck on the upper end face of the lower supporting panel; a middle measuring hole of the lower supporting panel is provided with a camera of the thermal infrared imager; the thermal infrared imager is electrically connected with a computer; incandescent light bulbs are symmetrically mounted at four corners of the upper surface of the lower supporting panel; the whole device is stuck with the light shielding cloth to form a detection space. The device disclosed by the utility model is flexible to adjust and strong in universality; the defect positions of the solar panel can be detected online in time and the fault detection efficiency is improved; the fault rate of solar cells in the production of the solar cells is reduced.
Description
Technical field
The utility model relates to a kind of solar panels defect detecting device, particularly relates to a kind of thermal infrared imager that uses and carries out solar panels defect detecting device.
Background technology
Day by day exhausted along with the continuous growth of energy demand and non-renewable energy resources, sun power as a kind of general evenly, the green resource of clean environment firendly, have huge Application and Development potentiality.The core devices of solar power system is solar energy photovoltaic panel.In the production run of photovoltaic panel, due to reasons such as production line or manual operation errors, there will be some to be difficult for some defects of being discovered by naked eyes, for example hidden splitting, fragment, disconnected grid, rosin joint etc.These defects are difficult for directly being observed and detecting by human eye or industrial camera.
Chinese patent literature discloses a kind of device and method that utilizes microwave to detect online solar panels structural damage (application number: 201310167499.0), comprise active microwave cavity, microwave signal process system and degree of impairment LED pilot lamp; Described active microwave cavity comprises the vector network analyzer, frequency sweeping source, the first isolator, the first tuner resonant cavity body that connect successively; Described microwave signal process system comprises attenuator, the second tuner, the second isolator and the signal microprocessor circuit that the coupling probe that is placed in resonant cavity is connected successively with coupling probe.The method is mainly that the electrical property of solar panel is detected, and can not carry out effectively detecting in real time to the surface imperfection of solar panels under working condition.
Summary of the invention
The purpose of this utility model is to provide a kind of thermal infrared imager that uses to carry out solar panels defect detecting device, utilize the Different Red external characteristics of sending out various defects in photovoltaic panel generating or energising situation, the defect of photovoltaic panel is classified with infrared camera technology, reclaim with the classification that reaches unacceptable product, reduce unnecessary waste and pollution.
For achieving the above object, the technical solution adopted in the utility model is as follows:
The rectangular parallelepiped that the framework of this device is made up of four vertical supports, framework upper one side is provided with U-shaped plate, U-shaped plate both sides are separately fixed at this side two stands outside, first flat board of opening U-shaped mouth is housed between the inner side of this side two stands, in the dull and stereotyped U-shaped mouth that first is opened U-shaped mouth, clutch shaft bearing seat is installed, and between the inner side of the opposite framework upper two stands of described framework upper one side, second flat board of opening U-shaped mouth is housed, in the dull and stereotyped U-shaped mouth that second is opened U-shaped mouth, the second bearing seat is installed, in U-shaped plate interstitial hole, motor is housed, motor is by shaft coupling connection for transmission axle, one end of transmission shaft is contained in clutch shaft bearing seat hole, the other end of transmission shaft is contained in the second bearing saddle bore, transmission shaft is equipped with driving member near one end of clutch shaft bearing seat, the right angle face of driving member and rectangular card frid is connected, in the middle of the horizontal right angle face of right angle draw-in groove, have breach, all there is the flange that can hold solar panels on the both sides of breach, the below of U-shaped plate and second dull and stereotyped below of opening U-shaped mouth are respectively equipped with the window-blind that can rotate, framework end face is installed support panel, frame mid portion is installed lower support panel, the support outside on lower support panel and the two window-blind both sides that can rotate is all provided with the first lateral support panel, the support outside on the other both sides of lower support panel is all provided with the second lateral support panel, one deck gobo is posted in lower support panel upper surface, in the middle of lower support panel, have measured hole, the camera of installation infrared thermal imaging system in measured hole, thermal infrared imager is fixedly mounted on the lower surface of lower support panel, thermal infrared imager is electrically connected with computing machine, on four angles above lower support panel, be symmetrically installed with incandescent lamp, upper support panel, two the first lateral support panels and two the second lateral support panels post respectively gobo outward, gobo and the window-blind that can rotate form lighttight detection space.
Described driving member both sides are also respectively equipped with guide pole, and one end of two guide poles is fixed on first flat board of opening U-shaped mouth through driving member and draw-in groove, and the other end of two guide poles is fixed on second flat board of opening U-shaped mouth.
Described lower support panel can move up and down and fix along four of a framework vertical support.
Compared with background technology, the beneficial effect the utlity model has is:
The utility model utilizes the Different Red external characteristics of various defects in solar panels analog operation situation, the defect of solar panels is detected and is classified with infrared camera technology, reclaims with the classification that reaches unacceptable product, reduces unnecessary waste and pollution.The utility model flexible adjustment, highly versatile, can real-time online detects all kinds of defects and the defective locations of solar panels, improves fault detect efficiency, significantly reduces the solar cell failure rate in manufacture of solar cells.
Accompanying drawing explanation
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Fig. 1 is front view of the present utility model.
Fig. 2 is left view of the present utility model.
Fig. 3 is vertical view of the present utility model.
In figure: 1, support, 2, U-shaped plate, 3, first open the flat board of U-shaped mouth, 4, the second flat board of opening U-shaped mouth, 5, motor, 6, shaft coupling, 7, transmission shaft, 8, clutch shaft bearing seat, 9, the second bearing seat, 10, driving member, 11, rectangular card frid, 12, the window-blind that rotates, 13, the first lateral support panel, 14, upper support panel, 15, the second lateral support panel, 16, lower support panel, 17, gobo, 18, thermal infrared imager, 19, angle bar, 20, incandescent lamp, 21, solar panels, 22, computing machine, 23, guide pole.
Embodiment
Principle of the present utility model is:
Preparation technology's general sequence of solar panels is that prepare on forming silicon film surface, knot is made in diffusion, removes back of the body knot, makes upper/lower electrode, corrodes periphery, evaporation antireflecting film, finally makes solar panels.Utilize the electroluminescent principle of solar panels, the heat radiation of electrode surface and internal heat conduction, illumination is in solar panels area free from defect, in the time being subject to irradiation, the photon with enough energy can evoke electronics in P type silicon and N-type silicon from covalent bond, causes outbreak electron-hole pair.Electronics moves to electronegative P district to N district and the hole of positively charged, generation current, and more at the electron-hole pair of contact bed outbreak via illumination, electric current is larger.According to Joule law, the temperature of solar panels increases and raises with electric current, and because dielectric distribution in area free from defect solar panels is even, evenly, therefore temperature value is also becoming relatively uniform and stable state in hot-fluid conduction.In solar panels defectiveness region, the obstruction of Microinhomogeneity point will be produced, cause heat wave to occur lagging behind, because defect has inhibition to hot-fluid, force hot-fluid to walk around this defect area, make the temperature rise of defect edge and form the temperature difference, the temperature distributing disproportionation of electrode surface is even, on the image that this process is taken at thermal infrared imager, show as bright spot and/or bright fringes and/or bright area, therefore can pass through the surface imperfection of thermal infrared imager on-line measurement solar panels.
Below in conjunction with drawings and Examples, the utility model is described further.
As Fig. 1, Fig. 2, shown in Fig. 3, the rectangular parallelepiped that the framework of this device is made up of four vertical supports 1, framework upper one side is provided with U-shaped plate 2, U-shaped plate 2 both sides are separately fixed at this side two stands 1 outside, first flat board 3 of opening U-shaped mouth is housed between the inner side of this side two stands 1, in the U-shaped mouth of first flat board 3 of opening U-shaped mouth, clutch shaft bearing seat 8 is installed, and second flat board 4 of opening U-shaped mouth is housed between the inner side of the opposite framework upper two stands 1 of described framework upper one side, in the U-shaped mouth of second flat board 4 of opening U-shaped mouth, the second bearing seat 9 is installed, in U-shaped plate 2 interstitial holes, motor 5 is housed, motor 5 is by shaft coupling 6 connection for transmission axles (being screw mandrel) 7, one end of transmission shaft 7 is contained in clutch shaft bearing seat 8 holes, the other end of transmission shaft 7 is contained in the second bearing seat 9 holes, transmission shaft 7 is equipped with driving member (being nut) 10 near one end of clutch shaft bearing seat 8, driving member 10 is connected with the right angle face of rectangular card frid 11, in the middle of the horizontal right angle face of right angle draw-in groove 11, have breach, all there is the flange that can hold solar panels 21 on the both sides of breach, the below of U-shaped plate 2 and second below of opening the flat board 4 of U-shaped mouth are respectively equipped with the window-blind 12 that can rotate, framework end face is installed support panel 14, frame mid portion is installed lower support panel 16, the support outside on lower support panel 16 and two window-blind 12 both sides that can rotate is all provided with the first lateral support panel 13, the support outside on lower support panel 16 other both sides is all provided with the second lateral support panel 15, one deck gobo 17 is posted in lower support panel 16 upper surfaces, in the middle of lower support panel 16, have measured hole, the camera of installation infrared thermal imaging system 18 in measured hole, thermal infrared imager 18 is fixedly mounted on the lower surface of lower support panel 16 by angle bar 19, thermal infrared imager 18 is electrically connected with computing machine 22, lower support panel 16 is symmetrically installed with incandescent lamp 20 on four angles above, upper support panel 14, two the first lateral support panels 13 and two outer gobos 17 that post respectively of the second lateral support panel 15, gobo 17 and the window-blind 12 that can rotate form lighttight detection space.
One end that described driving member 10 both sides are also respectively equipped with 23, two guide poles 23 of guide pole is fixed on first flat board 3 of opening U-shaped mouth through driving member 10 and draw-in groove 11, and the other end of two guide poles 23 is fixed on second flat board 3 of opening U-shaped mouth.
Described lower support panel 16 can move up and down and fix along four of a framework vertical support 1.
The utility model detection method comprises the following steps:
A. solar panels 21 to be detected are put into solar panels draw-in groove 11, open thermal infrared imager 18, according to the size of solar panels 21 to be detected, regulate the height of lower support panel 16, make the thermal imagery of solar panels can be full of thermal infrared imager camera lens;
B. switch on power, open four incandescent lamps 20, solar panels 21 work in electroluminescent state, motor drives solar panels to slide with certain speed along transmission shaft horizontal direction, thermal infrared imager 18 is taken the thermal imagery of solar panels 21, and the picture signal photographing is sent to computing machine 22 in real time, and the thermography that computing machine 22 collects thermal infrared imager 18 is processed, by analyzing, there is the position of type and the defect of defect in the sunny energy of on-line measurement plate 21.
Further, choose the non-refrigeration type thermal infrared imager that Sa Te company produces, model C K350-M, concrete technical parameter is: operating voltage: 10V ± 2VDC, resolution is 1.09mrad, resolution is: 384*288, temperature-measuring range is :-20 ° ~+250 °, as shown in Figure 1, be the draw-in groove that 0.30m*0.60m solar panels are put into support panel by a block specifications, switch on power, four incandescent lamp work, solar panels work in electroluminescent state, open thermal infrared imager simultaneously, drive support panel to slide along directions X with the speed of 0.06 meter per second, thermal infrared imager is taken solar panels, the picture signal photographing is by RS232(serial ports) be sent in real time computing machine, computing machine can coverage according to thermal imaging system and the rate setting signal frequency acquisition of guide rail be 1Hz, to guarantee that thermal infrared imager can collect the infrared image of each part of solar panels, the picture signal that computing machine collects thermal infrared imager is processed, there is the position of type and the defect of defect in the sunny energy of on-line measurement plate.Defect type generally has following four kinds: black-film, disconnected deleting, fragment, crackle, wherein black-film represents that the actual work temperature of the solar panels that collect is higher than the qualified working temperature of solar panels, in the time that the actual work temperature of solar panels is greater than 90% higher than the area of the qualified working temperature of solar panels, predicate black-film.
The Infrared Image Features of disconnected grid is along secondary grid bearing, and the high-temperature rectangular region of formation rule, so its recognition methods is the shape of extracting high-temperature area, takes a decision as to whether rectangle; Or see that whether it is parallel with secondary grid.
The Infrared Image Features of fragment is to have obvious high-temperature area from the edge of battery monomer, so recognition methods is: after infrared image binaryzation, it is black that there is certain width at edge, and continuously, can be judged as fragment, then obtain its border with chain code, then count area.
The Infrared Image Features shape facility of crackle is to have the high temperature lines of any direction to occur, it and secondary grid are not parallel.Recognition methods is, by infrared image is extracted to suspicious crackle by edge algorithms, writes algorithm and follows the trail of its track, judges whether it is crackle.
Determining of defective locations: first collect the whole image of infrared image temperature value a little, then be averaging temperature, determine the position in the region of temperature difference maximum by warmer extent, be defective locations.
Above-mentioned embodiment is used for the utility model of explaining; rather than the utility model is limited; in the protection domain of spirit of the present utility model and claim, any modification and change that the utility model is made, all fall into protection domain of the present utility model.
Claims (3)
1. a use thermal infrared imager carries out solar panels defect detecting device, it is characterized in that: the rectangular parallelepiped that the framework of this device is made up of four vertical supports (1), framework upper one side is provided with U-shaped plate (2), U-shaped plate (2) both sides are separately fixed at this side two stands (1) outside, first flat board (3) of opening U-shaped mouth is housed between the inner side of this side two stands (1), in the U-shaped mouth of first flat board (3) of opening U-shaped mouth, clutch shaft bearing seat (8) is installed, and second flat board (4) of opening U-shaped mouth is housed between the inner side of the opposite framework upper two stands (1) of described framework upper one side, in the U-shaped mouth of second flat board (4) of opening U-shaped mouth, the second bearing seat (9) is installed, in U-shaped plate (2) interstitial hole, motor (5) is housed, motor (5) is by shaft coupling (6) connection for transmission axle (7), one end of transmission shaft (7) is contained in clutch shaft bearing seat (8) hole, the other end of transmission shaft (7) is contained in the second bearing seat (9) hole, transmission shaft (7) is equipped with driving member (10) near one end of clutch shaft bearing seat (8), driving member (10) is connected with the right angle face of rectangular card frid (11), in the middle of the horizontal right angle face of right angle draw-in groove (11), have breach, all there is the flange that can hold solar panels (21) on the both sides of breach, the below of U-shaped plate (2) and second below of opening the flat board (4) of U-shaped mouth are respectively equipped with the window-blind (12) that can rotate, framework end face is installed support panel (14), frame mid portion is installed lower support panel (16), the support outside on lower support panel (16) and two window-blind (12) both sides that can rotate is all provided with the first lateral support panel (13), lower support panel (16) the in addition support outside on both sides is all provided with the second lateral support panel (15), one deck gobo (17) is posted in lower support panel (16) upper surface, in the middle of lower support panel (16), have measured hole, the camera of installation infrared thermal imaging system (18) in measured hole, thermal infrared imager (18) is fixedly mounted on the lower surface of lower support panel (16), thermal infrared imager (18) is electrically connected with computing machine (22), lower support panel (16) is symmetrically installed with incandescent lamp (20) on four angles above, upper support panel (14), two the first lateral support panels (13) and two outer gobos (17) that post respectively of the second lateral support panel (15), gobo (17) and the window-blind (12) that can rotate form lighttight detection space.
2. a kind of thermal infrared imager that uses according to claim 1 carries out solar panels defect detecting device, it is characterized in that: described driving member (10) both sides are also respectively equipped with guide pole (23), one end of two guide poles (23) is fixed on first flat board (3) of opening U-shaped mouth through driving member (10) and draw-in groove (11) and goes up, and the other end of two guide poles (23) is fixed on second flat board (3) of opening U-shaped mouth.
3. a kind of thermal infrared imager that uses according to claim 1 carries out solar panels defect detecting device, it is characterized in that: described lower support panel (16) can move up and down and fix along four of a framework vertical support (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754346.1U CN203606302U (en) | 2013-11-26 | 2013-11-26 | Device for carrying out solar panel defect detection by using thermal infrared imager |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754346.1U CN203606302U (en) | 2013-11-26 | 2013-11-26 | Device for carrying out solar panel defect detection by using thermal infrared imager |
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| CN203606302U true CN203606302U (en) | 2014-05-21 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674964A (en) * | 2013-11-26 | 2014-03-26 | 中国计量学院 | Device for detecting defects of solar panel by thermal infrared imager |
| CN104320077A (en) * | 2014-09-29 | 2015-01-28 | 广东产品质量监督检验研究院 | Rapid detection method for photovoltaic components |
| CN104502352A (en) * | 2014-12-12 | 2015-04-08 | 中国建筑第八工程局有限公司 | Method for monitoring compactness of concrete filled steel tube |
| CN107241062A (en) * | 2017-08-08 | 2017-10-10 | 上海安乃基能源科技有限公司 | Photovoltaic panel detection means and system |
| CN110836909A (en) * | 2018-08-17 | 2020-02-25 | 波音公司 | Infrared thermal imaging inspection system and method for modular composite structures |
| CN117250230A (en) * | 2023-11-17 | 2023-12-19 | 天津港电力有限公司 | Photovoltaic module defect identification system based on infrared shooting |
-
2013
- 2013-11-26 CN CN201320754346.1U patent/CN203606302U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674964A (en) * | 2013-11-26 | 2014-03-26 | 中国计量学院 | Device for detecting defects of solar panel by thermal infrared imager |
| CN104320077A (en) * | 2014-09-29 | 2015-01-28 | 广东产品质量监督检验研究院 | Rapid detection method for photovoltaic components |
| CN104502352A (en) * | 2014-12-12 | 2015-04-08 | 中国建筑第八工程局有限公司 | Method for monitoring compactness of concrete filled steel tube |
| CN107241062A (en) * | 2017-08-08 | 2017-10-10 | 上海安乃基能源科技有限公司 | Photovoltaic panel detection means and system |
| CN110836909A (en) * | 2018-08-17 | 2020-02-25 | 波音公司 | Infrared thermal imaging inspection system and method for modular composite structures |
| CN117250230A (en) * | 2023-11-17 | 2023-12-19 | 天津港电力有限公司 | Photovoltaic module defect identification system based on infrared shooting |
| CN117250230B (en) * | 2023-11-17 | 2024-01-23 | 天津港电力有限公司 | Photovoltaic module defect identification system based on infrared shooting |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20161126 |