CN108962778B - EL detection device for solar cell - Google Patents
EL detection device for solar cell Download PDFInfo
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- CN108962778B CN108962778B CN201810839551.5A CN201810839551A CN108962778B CN 108962778 B CN108962778 B CN 108962778B CN 201810839551 A CN201810839551 A CN 201810839551A CN 108962778 B CN108962778 B CN 108962778B
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- 238000002503 electroluminescence detection Methods 0.000 title claims abstract description 17
- 230000007547 defect Effects 0.000 claims abstract description 10
- 239000000523 sample Substances 0.000 claims description 18
- 241000252254 Catostomidae Species 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 239000000969 carrier Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/12—Measuring as part of the manufacturing process for structural parameters, e.g. thickness, line width, refractive index, temperature, warp, bond strength, defects, optical inspection, electrical measurement of structural dimensions, metallurgic measurement of diffusions
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
- H02S50/15—Testing of PV devices, e.g. of PV modules or single PV cells using optical means, e.g. using electroluminescence
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention belongs to the technical field of solar cell testing, in particular to a solar cell EL detection device which comprises a conveying belt, a bottom plate, a rotating module, a power-up module and a positioning module, wherein the rotating module is arranged on the bottom plate; the conveying belt is positioned below the rotating module and is used for conveying the solar cell to be detected to the position below the rotating module for detection and conveying out the detected solar cell; the positioning module is arranged on the rotating module and is used for positioning the solar cell; the power-up module is arranged on the rotating module and is used for detecting the solar cell positioned by the positioning module so as to determine the internal defect of the solar cell. The invention can greatly improve the detection efficiency of the solar cell and has simple structure.
Description
Technical Field
The invention belongs to the technical field of solar cell testing, and particularly relates to a solar cell EL detection device.
Background
The solar cell is an energy-saving component using silicon as a main material. Since crystalline silicon has the property of electroluminescence (Electroluminescent, abbreviated as EL), an EL detector can be used on a sorter for screening defective solar cells, and the specific method is as follows: the forward bias voltage is externally applied to the solar cell by the probe, a large number of unbalanced carriers are injected into the solar cell by the power supply, and the large number of unbalanced carriers injected from the diffusion region can continuously perform compound luminescence to emit photons; and capturing the photons by using a CCD camera, processing the photons by a computer, displaying the photons, and analyzing the acquired image characteristics to identify the potential defects of the solar cell. Electroluminescent imaging technology has been used by many solar cell and assembly manufacturers to detect product defects and control product quality.
Modern electronic equipment is more advanced in function, is more complex in structure and scale, and is more difficult to test and maintain, so that the testability, maintainability and fault diagnosis of the electronic equipment are researched, and the method has important significance for ensuring that the electronic equipment keeps and plays a high role and greatly reducing the maintenance and guarantee cost of the electronic equipment.
In view of this, the solar cell EL detection device provided by the invention can greatly improve the detection efficiency of the solar cell, and has a simple structure and a wider application range.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a solar cell EL detection device which is mainly used for EL detection of a solar cell. According to the invention, through the mutual coordination of the conveying belt, the rotating module, the power-up module and the positioning module, the continuous detection of the battery piece can be realized, the working efficiency is high, and meanwhile, the detection period is further shortened by adopting a mode of continuously applying voltage twice; the design of a single power source makes the device more compact in structure.
The technical scheme adopted for solving the technical problems is as follows: the solar cell EL detection device comprises a conveying belt, a bottom plate, a rotation module, a power-on module and a positioning module, wherein the rotation module is arranged on the bottom plate; the conveyor belt is positioned below the rotating module; the positioning module is arranged on the rotating module; the power-up module is mounted on the rotating module.
Preferably, the rotating module comprises a rotary table, a rotating shaft, a lantern ring, a rotating plate, a friction plate, a sliding shaft, an air bag, a spring a, a bracket and a motor, wherein the rotary table is horizontally arranged on a bottom plate, and the middle of the rotary table is of a hollow structure; the rotating shaft is positioned in the hollow structure of the turntable, the rotating shaft is arranged in the turntable through a lantern ring, and the rotating shaft and the turntable can rotate relatively; the rotating plate is a cylinder with a concave section, the rotating plate is positioned between the turntable and the rotating shaft, a through hole is horizontally arranged at the position of the rotating plate positioned in the turntable, and a chute is horizontally arranged at the position of the rotating plate positioned in the through hole; a sliding shaft horizontally penetrates through the through hole; friction plates are arranged at two ends of the sliding shaft; the friction plates are distributed on the inner side and the outer side of the rotating plate; the part of the sliding shaft positioned in the rotating plate is provided with a cylindrical bulge along the circumferential surface of the sliding shaft, and the cylindrical bulge is positioned in a chute of the rotating plate; the air bag and the spring a are both positioned in the chute of the rotating plate; one end of the air bag and one end of the spring a are respectively fixed with the inner wall of the runner of the rotating plate; the other ends of the air bag and the spring a are respectively fixed with the annular bulge of the sliding shaft; the support is arranged on the bottom plate, and the support and the turntable are respectively positioned on the upper side and the lower side of the bottom plate; the motor is installed on the support, and the motor output shaft is connected with the rotating plate.
Preferably, the power-on module comprises a push rod, a spring b, a fixed plate, a sucker, a mounting rack, a probe and a CCD image sensor, wherein the turntable is symmetrically provided with four sliding grooves along the radial direction, and the sliding grooves penetrate through the inner wall and the outer wall of the turntable; the number of the push rods is the same as that of the sliding grooves, the push rods penetrate through the sliding grooves of the turntable, a fixed plate is arranged at one end of each push rod, which is positioned outside the turntable, and a spring b is arranged at one end of each push rod, which is positioned in the turntable; the sucker is fixed on the fixed plate; the number of the mounting frames is two, and the mounting frames are arranged on the right side and the upper side of the turntable and correspond to the suckers; the probe is fixed on the mounting frame and is connected with an external power supply; the CCD image sensor is located above the turntable, is located on the outer side of the mounting frame, and is used for taking the battery piece and analyzing whether the battery piece has defects.
Preferably, a circular groove is formed in the part, located in the rotary disc, of the rotary shaft along the circumferential surface; a plurality of rotating plates are hinged in the annular groove; the rotary plate is provided with torsion springs at hinged positions, and the rotary plate is uniformly arranged on the rotary shaft.
Preferably, the positioning module comprises a first connecting rod, a sliding block, a second connecting rod and a clamping block, wherein each push rod is provided with the positioning module, the first connecting rod is two in number, the first connecting rod is L-shaped, the first connecting rod is installed on the push rod in a cross manner, and the position of the first connecting rod cross point is hinged on the push rod; the number of the sliding blocks is two, the sliding blocks are installed on the first connecting rod in a sliding connection mode, and the sliding blocks are located at the upper end of the first connecting rod; one end of the second connecting rod is hinged to the turntable, and the other end of the second connecting rod is hinged to the sliding block; the clamping block is positioned at the lower end of the first connecting rod.
Preferably, the clamping block comprises a fixed seat, a support, a roller and a spring c, a groove is formed in the bottom of the fixed seat, a guide groove is formed above the groove, and the spring c is arranged in the guide groove; the roller is arranged on the support, the roller is positioned in the groove of the fixing seat, the upper end of the support is positioned in the guide groove of the fixing seat, and the top end of the support is connected with the spring c.
The beneficial effects of the invention are as follows:
1. According to the solar cell EL detection device, the conveying belt, the rotating module, the power-up module and the positioning module work in a matched mode, and the detection period is shortened by applying bias voltage to the cell twice and taking illumination; meanwhile, continuous work can be realized through the design of the turntable structure, and the working efficiency is high.
2. According to the solar cell EL detection device, through the design of a single power source, the rotation of the turntable and the linear movement of the push rod are detected, the device is compact in structure and low in cost, and meanwhile, the energy loss is reduced.
3. According to the solar cell EL detection device, the positioning module can enable the cells to be at the same position before voltage is applied to the cells and illumination is carried out, and detection accuracy is improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a cross-sectional view of the spindle and turntable of the present invention mounted on a base plate;
FIG. 4 is a partial enlarged view at B in FIG. 3;
FIG. 5 is a schematic view of the rotating plate of the present invention mounted on a rotating shaft;
In the figure: conveyor belt 1, bottom plate 2, rotation module 3, power-on module 4, positioning module 5, battery piece 6, carousel 31, pivot 32, lantern ring 33, rotation plate 34, friction plate 35, sliding shaft 36, gasbag 37, motor 38, push rod 41, fixed plate 42, sucking disc 43, mounting bracket 44, probe 45, CCD image sensor 46, rotor plate 321, connecting rod one 51, slider 52, connecting rod two 53, clamp block 54, fixing base 541, support 542, roller 543.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 5, the solar cell EL detection device of the present invention includes a conveyor belt 1, a bottom plate 2, a rotation module 3, a power-up module 4 and a positioning module 5; the rotating module 3 is arranged on the bottom plate 2; the conveying belt 1 is positioned below the rotating module 3, and the conveying belt 1 is used for conveying the solar cell 6 to be detected below the rotating module 3 for detection and conveying out the detected solar cell 6; the positioning module 5 is arranged on the rotating module 3, and the positioning module 5 is used for realizing the positioning of the solar cell 6; the power-up module 4 is installed on the rotating module 3, and the power-up module 4 is used for detecting the solar cell 6 positioned by the positioning module 5 so as to determine the internal defect of the solar cell 6.
The rotating module 3 comprises a rotary table 31, a rotary shaft 32, a lantern ring 33, a rotary plate 34, a friction plate 35, a sliding shaft 36, an air bag 37, a spring a, a bracket and a motor 38; the turntable 31 is horizontally arranged on the bottom plate 2; the middle of the turntable 31 is of a hollow structure; the rotating shaft 32 is positioned in the hollow structure of the turntable 31, the rotating shaft 32 is arranged in the turntable 31 through a lantern ring 33, and the rotating shaft 32 and the turntable 31 can rotate relatively; the rotating plate 34 is a cylinder with a concave section, the rotating plate 34 is positioned between the turntable 31 and the rotating shaft 32, a through hole is horizontally arranged at the position of the rotating plate 34 positioned in the turntable 31, and a chute is horizontally arranged at the position of the through hole of the rotating plate 34; a sliding shaft 36 horizontally penetrates through the through hole; friction plates 35 are arranged at two ends of the sliding shaft 36; the friction plates 35 are distributed on the inner side and the outer side of the rotating plate 34; the part of the sliding shaft 36 positioned in the rotating plate 34 is provided with a cylindrical bulge along the circumferential surface of the sliding shaft 36, and the cylindrical bulge is positioned in a chute of the rotating plate 34; the air bag 37 and the spring a are both positioned in the chute of the rotating plate 34; one end of the air bag 37 and one end of the spring a are respectively fixed with the inner wall of the chute of the rotating plate 34; the other ends of the air bag 37 and the spring a are respectively fixed with the annular bulge of the sliding shaft 36; the support is arranged on the bottom plate 2, and the support and the turntable 31 are respectively positioned on the upper side and the lower side of the bottom plate 2; the motor 38 is arranged on the bracket, and an output shaft of the motor 38 is connected with the rotating plate 34;
When the turntable 31 needs to rotate, the air bag 37 is not inflated, the spring a pushes the sliding shaft 36 to move outwards, and the friction plate 35 close to the turntable 31 is pressed on the inner wall of the turntable 31; then, the motor 38 drives the rotating plate 34 to rotate, and the rotating plate 34 drives the rotating plate 31 to synchronously rotate because the friction plate 35 is pressed on the rotating plate 31, so that the movement of the rotating plate 31 is realized; when the rotating shaft 32 needs to rotate, the air bag 37 is inflated, the air bag 37 pushes the sliding shaft 36 to move inwards, and the friction plate 35 close to the rotating shaft 32 is pressed on the outer wall of the rotating shaft 32; then, the motor 38 drives the rotating plate 34 to rotate, and the rotating plate 34 drives the rotating shaft 32 to synchronously rotate due to the fact that the rotating shaft 32 is firmly held by the friction plate 35, so that the movement of the rotating shaft 32 is achieved.
The power-on module 4 comprises a push rod 41, a spring b, a fixed plate 42, a sucker 43, a mounting frame 44, a probe 45 and a CCD image sensor 46; four sliding grooves are symmetrically arranged on the turntable 31 along the radial direction, and penetrate through the inner wall and the outer wall of the turntable 31; the number of the push rods 41 is the same as that of the sliding grooves; the push rod 41 passes through the sliding groove of the turntable 31; one end of the push rod 41, which is positioned outside the turntable 31, is provided with a fixed plate 42; a spring b is arranged at one end of the push rod 41 positioned in the turntable 31; the spring b is used for pushing the push rod 41 to move into the turntable 31; the sucking disc 43 is fixed on the fixed plate 42; the sucking disc 43 is used for sucking the battery piece 6 on the conveyer belt 1; the right side and the upper side of the turntable 31 are respectively provided with a mounting frame 44 at positions corresponding to the suckers 43; the probe 45 is fixed on the mounting frame 44, the probe 45 is connected with an external power supply, and the probe 45 is used for applying bias voltage to the battery piece 6; the CCD image sensor 46 is located above the turntable 31, and the CCD image sensor 46 is located at the outer side of the mounting frame 44, where the CCD image sensor 46 is used to take an image of the battery 6 and analyze whether the battery 6 has a defect.
When the conveyer belt 1 conveys the battery piece 6 to be detected to the position right below the turntable 31, the push rod 41 below the conveyer belt moves downwards to drive the sucker 43 to draw close to the battery piece 6 and adsorb the battery piece 6, and then the push rod 41 moves upwards under the action of the spring b to separate the battery piece 6 from the conveyer belt 1; then, the turntable 31 rotates ninety degrees anticlockwise, the sucking disc 43 of the battery piece 6 of the carrier moves to the right side of the turntable 31, the push rod 41 pushes the sucking disc 43 outwards again, the battery piece 6 is in contact with the probe 45, and the probe 45 injects unbalanced carriers into the battery piece 6; then, the turntable 31 is rotated ninety degrees counterclockwise again, the battery piece 6 is located above the turntable 31, the probe 45 above the turntable 31 applies voltage to the battery piece 6 again, and at the same time, the CCD image sensor 46 photographs the battery piece 6 which emits light, and whether the battery piece 6 has defects is analyzed.
The part of the rotating shaft 32 positioned in the turntable 31 is provided with a circular groove along the circumferential surface; a plurality of rotating plates 321 are hinged in the annular groove; the rotating plate 321 is provided with a torsion spring at a hinge position. When the rotating shaft 32 rotates, the rotating plate 321 is thrown outwards, and the push rod 41 is pushed to move along the sliding groove in a direction away from the turntable 31; when the motor 38 rotates the electric rotating shaft 32, the rotating plate 321 is thrown outwards under the action of centrifugal force, and the thrown rotating plate 321 pushes the pushing plate to move outwards, so that the pushing plate can push the sucker 43 to move outwards, and the sucker 43 can suck the battery piece 6 and complete the contact between the battery piece 6 and the probe 45.
The positioning module 5 comprises a first connecting rod 51, a sliding block 52, a second connecting rod 53 and a clamping block 54; the push rod 41 is provided with a positioning module 5; the first connecting rod 51 is symmetrically arranged on the push rod 41 in a cross manner; the first connecting rod 51 is hinged on the push rod 41 at the position of the crossing point; the first connecting rod 51 is L-shaped; the sliding block 52 is slidably connected and installed on the first connecting rod 51, and the sliding block 52 is positioned at the upper end of the first connecting rod 51; one end of the second connecting rod 53 is hinged on the turntable 31, and the other end is hinged with the sliding block 52; the clamping block 54 is positioned at the lower end of the first connecting rod 51, and the clamping block 54 is used for positioning the battery piece 6.
In the process of downward movement of the push rod 41, the lower end of the first connecting rod 51 is close to the middle, the first clamping blocks 54 are in contact with the conveying belt 1 and move on the conveying belt 1 to clamp the battery piece 6 between the first clamping blocks 54, so that the battery piece 6 is positioned.
The clamping block 54 comprises a fixing seat 541, a support 542, a roller 543 and a spring c, a groove is arranged at the bottom of the fixing seat 541, a guide groove is arranged above the groove, and the spring c is arranged in the guide groove; a roller 543 is installed in the groove of the fixed seat 541 through a support 542; the upper end of the support 542 is positioned in the guide groove of the fixing base 541, and the top end of the support 542 is connected with the spring c.
When the clamping block 54 contacts with the conveyor belt 1, the roller 543 can not generate severe impact with the conveyor belt 1 due to the existence of the spring c between the fixed seat 541 and the support 542, so that the damage of the conveyor belt 1 and the falling of the battery piece 6 from the conveyor belt 1 are avoided.
The specific working procedure is as follows:
When the conveyor belt 1 conveys the battery piece 6 to be detected to the position right below the turntable 31, the air bag 37 is inflated, the air bag 37 pushes the sliding shaft 36 to move inwards, and the friction plate 35 close to the rotating shaft 32 is pressed on the outer wall of the rotating shaft 32; then, the motor 38 drives the rotating plate 34 to rotate, and the rotating plate 34 drives the rotating shaft 32 to synchronously rotate because the rotating shaft 32 is firmly held by the friction plate 35, so that the movement of the rotating shaft 32 is realized; the rotating shaft 32 moves to push the push rod 41 below to move downwards, the sucker 43 is driven to close to the battery piece 6 and absorb the battery piece 6, then the motor 38 stops working, the push rod 41 moves upwards under the action of the spring b, and the battery piece 6 is separated from the conveyor belt 1; then, the air bag 37 is deflated, the spring a pushes the sliding shaft 36 to move outwards, and the friction plate 35 close to the turntable 31 is pressed on the inner wall of the turntable 31; then, the motor 38 drives the rotating plate 34 to rotate, and the friction plate 35 is pressed on the turntable 31, the rotating plate 34 drives the turntable 31 to synchronously rotate, so that the turntable 31 rotates ninety degrees anticlockwise, and the sucking disc 43 of the battery piece 6 of the carrier moves to the right side of the turntable 31. Then, the air bag 37 is inflated again, the motor 38 drives the rotating shaft 32 to rotate, the rotating plate 321 moves to enable the push rod 41 to push the sucker 43 outwards again, the battery piece 6 is in contact with the probe 45, and unbalanced carriers are injected into the battery piece 6 by the probe 45; then, the air bag 37 is deflated again, the motor 38 drives the turntable 31 to rotate ninety degrees counterclockwise again, at this time, the battery piece 6 is located above the turntable 31, the probe 45 above the turntable 31 applies voltage to the battery piece 6 again, meanwhile, the CCD image sensor 46 photographs the luminous battery piece 6, whether the battery piece 6 has defects is analyzed, and when the turntable 31 rotates one hundred eighty degrees again, the sucker 43 replaces the battery piece 6 back to the conveyor belt 1, so that detection is completed. When the turntable 31 rotates each time, the empty sucker 43 right below the turntable 31 can absorb one battery piece 6, so that continuous work and high working efficiency are realized.
In the process of downward movement of the push rod 41, the lower end of the first connecting rod 51 is close to the middle, the first clamping blocks 54 are in contact with the conveying belt 1 and move on the conveying belt 1 to clamp the battery piece 6 between the first clamping blocks 54, so that the battery piece 6 is positioned. When the clamping block 54 contacts with the conveyor belt 1, the roller 543 can not generate severe impact with the conveyor belt 1 due to the existence of the spring c between the fixed seat 541 and the support 542, so that the damage of the conveyor belt 1 and the falling of the battery piece 6 from the conveyor belt 1 are avoided.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a solar wafer EL detection device which characterized in that: the device comprises a conveying belt (1), a bottom plate (2), a rotating module (3), a sliding shaft (36), an air bag (37), a spring a, a bracket, a motor (38), a power-on module (4), a push rod (41), a spring b, a fixing plate (42), a sucker (43), a mounting frame (44), a probe (45), a CCD image sensor (46) and a positioning module (5), wherein the rotating module (3) is arranged on the bottom plate (2); the conveying belt (1) is positioned below the rotating module (3); the positioning module (5) is arranged on the rotating module (3); the power-on module (4) is arranged on the rotating module (3), the number of the mounting frames (44) is two, and the mounting frames (44) are arranged on the right side and the upper side of the turntable (31) at positions corresponding to the suckers (43); the probe (45) is fixed on the mounting frame (44), and the probe (45) is connected with an external power supply; the CCD image sensor (46) is positioned above the turntable (31), the CCD image sensor (46) is positioned at the outer side of the mounting frame (44), the CCD image sensor (46) is used for taking pictures of the battery piece (6) and analyzing whether the battery piece (6) has defects, friction plates (35) are arranged at two ends of the sliding shaft (36), the friction plates (35) are distributed at the inner side and the outer side of the rotating plate (34), cylindrical bulges are arranged on the part, positioned in the rotating plate (34), of the sliding shaft (36) along the circumferential surface of the sliding shaft (36), and are positioned in sliding grooves of the rotating plate (34); the air bag (37) and the spring a are both positioned in the chute of the rotating plate (34), and one end of the air bag (37) and one end of the spring a are respectively fixed with the inner wall of the chute of the rotating plate (34); the air bag (37) and the other end of the spring a are respectively fixed with annular protrusions of the sliding shaft (36), the support is mounted on the bottom plate (2), the support and the rotary table (31) are respectively located on the upper side and the lower side of the bottom plate (2), the rotary table (31) is symmetrically provided with four sliding grooves along the radial direction, the sliding grooves penetrate through the inner wall and the outer wall of the rotary table (31), the motor (38) is mounted on the support, an output shaft of the motor (38) is connected with the rotating plate (34), the number of push rods (41) is the same as the number of the sliding grooves, the push rods (41) penetrate through the sliding grooves of the rotary table (31), the fixing plate (42) is mounted at one end of the push rods (41) located outside the rotary table (31), the springs b are mounted at one end of the push rods (41) located in the rotary table (31), and the suckers (43) are fixed on the fixing plate (42).
2. The solar cell EL detection device according to claim 1, wherein: the rotating module (3) comprises a rotary table (31), a rotating shaft (32), a lantern ring (33), a rotating plate (34) and a friction plate (35), wherein the rotary table (31) is horizontally arranged on the bottom plate (2), and the middle of the rotary table (31) is of a hollow structure; the rotating shaft (32) is positioned in the hollow structure of the turntable (31), the rotating shaft (32) is arranged in the turntable (31) through a lantern ring (33), and the rotating shaft (32) and the turntable (31) can rotate relatively; the rotating plate (34) is a cylinder with a concave section, the rotating plate (34) is positioned between the rotary table (31) and the rotating shaft (32), a through hole is horizontally arranged at the position of the rotating plate (34) positioned in the rotary table (31), and a chute is horizontally arranged at the position of the rotating plate (34) positioned in the through hole; a sliding shaft (36) horizontally penetrates through the through hole.
3. The solar cell EL detection device according to claim 2, wherein: the part of the rotating shaft (32) positioned in the turntable (31) is provided with a circular groove along the circumferential surface; a plurality of rotating plates (321) are hinged in the annular groove; the rotating plate (321) is provided with a torsion spring at a hinged position, and the rotating plate (321) is uniformly arranged on the rotating shaft (32).
4. A solar cell EL detection device according to claim 3, wherein: the positioning module (5) comprises first connecting rods (51), sliding blocks (52), second connecting rods (53) and clamping blocks (54), the positioning module (5) is arranged on each push rod (41), the number of the first connecting rods (51) is two, the first connecting rods (51) are L-shaped, the first connecting rods (51) are installed on the push rods (41) in a cross mode, and the positions of the cross points of the first connecting rods (51) are hinged on the push rods (41); the number of the sliding blocks (52) is two, the sliding blocks (52) are slidably connected and arranged on the first connecting rod (51), and the sliding blocks (52) are positioned at the upper end of the first connecting rod (51); one end of the second connecting rod (53) is hinged on the turntable (31), and the other end of the second connecting rod (53) is hinged with the sliding block (52); the clamping block (54) is positioned at the lower end of the first connecting rod (51).
5. The solar cell EL detection device according to claim 4, wherein: the clamping block (54) comprises a fixed seat (541), a support (542), a roller (543) and a spring c, wherein a groove is formed in the bottom of the fixed seat (541), a guide groove is formed above the groove, and the spring c is arranged in the guide groove; the roller (543) is installed on the support (542), the roller (543) is located the recess of fixing base (541), and support (542) upper end is located the guide way of fixing base (541), and support (542) top is connected with spring c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810839551.5A CN108962778B (en) | 2018-07-27 | 2018-07-27 | EL detection device for solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810839551.5A CN108962778B (en) | 2018-07-27 | 2018-07-27 | EL detection device for solar cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108962778A CN108962778A (en) | 2018-12-07 |
| CN108962778B true CN108962778B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810839551.5A Active CN108962778B (en) | 2018-07-27 | 2018-07-27 | EL detection device for solar cell |
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| CN (1) | CN108962778B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111865215A (en) * | 2019-04-29 | 2020-10-30 | 北京铂阳顶荣光伏科技有限公司 | Detection device and method for solar cell |
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