CN219326301U

CN219326301U - Photovoltaic module testing arrangement

Info

Publication number: CN219326301U
Application number: CN202320726433.XU
Authority: CN
Inventors: 姚锐; 谭海波; 肖金辉
Original assignee: Sany Silicon Energy Zhuzhou Co Ltd
Current assignee: Zhuzhou Sany Silicon Energy Technology Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-07-11
Anticipated expiration: 2033-04-04

Abstract

The utility model relates to the technical field of solar photovoltaic modules, in particular to a photovoltaic module testing device. The photovoltaic module testing device comprises: the two manipulators are suitable for being arranged on two sides of a conveying line for conveying the photovoltaic module, each manipulator comprises a manipulator and a clamping hand, each clamping hand comprises a plug driving piece, a first clamp and a test connector, the plug driving pieces are fixed on the manipulator, at least one of the first clamp and the test connector is connected with the driving end of the plug driving piece, the first clamp is suitable for clamping the power connector, and the plug driving piece drives at least one of the first clamp and the test connector to move; the testing mechanism is suitable for being arranged at the position of the conveying line, the testing mechanism is electrically connected with the testing connector, a testing area is formed on the conveying line, and the testing mechanism is suitable for testing the photovoltaic module at the testing area. The power connector is only grabbed by the manipulator to realize the test of the photovoltaic module, so that the installation of the test fixture is reduced, and the test efficiency is high.

Description

Photovoltaic module testing arrangement

Technical Field

The utility model relates to the technical field of solar photovoltaic modules, in particular to a photovoltaic module testing device.

Background

In the manufacturing flow of the photovoltaic module, IV test and EL test are indispensable links of a production line of the photovoltaic module, the photovoltaic module can acquire power, current and the like of the photovoltaic module after the IV test, and whether defects exist in the module is judged through the EL test, so that the performance of the photovoltaic module is ensured, and the testing procedure is an important embodiment of the production quality of the module.

The IV test and the EL test require mounting a test tool for the photovoltaic module, when the IV test is carried out, the upper part simulates the solar light source to irradiate the module, and the IV characteristic curve of the photovoltaic module is obtained by collecting relevant current and voltage data through the test tool, so that the power classification is carried out; when the EL test is carried out, power is supplied to the photovoltaic module through the test tool, image data of the photovoltaic module are collected, and whether defects exist in the photovoltaic module or not is detected.

In the prior art, the test fixture is required to be manually fixed on the frame of the photovoltaic module, and when the same photovoltaic module is tested, the test fixture is firstly fixed on the frame of the photovoltaic module, then the connector of the photovoltaic module is connected with the connector of the test fixture, and then the surface electrode of the test fixture is in touch contact with the IV tester for electrifying, so that the IV test is performed; and after the IV test is finished, the photovoltaic module continuously flows to an EL test station, the movement of the photovoltaic module is stopped after the photovoltaic module arrives, the EL tester is electrified in touch contact with the electrode on the surface of the test tool, the photovoltaic module is started and stopped for three times, and the area array camera starts to collect EL images for three times, so that the EL test is finished. The photovoltaic module needs manual frequent disassembly of the test tool, frequent plugging of the connectors of the photovoltaic module and the connectors of the test tool when in IV test and EL test, and the area array camera performs static imaging, so that the test beat is long and the test efficiency is low.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the defect of low testing efficiency caused by the fact that the testing tool is required to be frequently disassembled manually in the photovoltaic module testing in the prior art, so as to provide the photovoltaic module testing device.

In order to solve the above problems, the present utility model further provides a photovoltaic module testing apparatus, including: the two manipulators are suitable for being arranged on two sides of a conveying line for conveying the photovoltaic module, each manipulator comprises a manipulator and a clamping hand, each clamping hand comprises a plug driving piece, a first clamp and a test connector, the plug driving pieces are fixed on the manipulator, at least one of the first clamp and the test connector is connected with the driving end of the plug driving piece, the first clamp is suitable for clamping the power connector of the photovoltaic module, and the plug driving pieces drive at least one of the first clamp and the test connector to move so that the power connector can be inserted into the test connector and pulled out of the test connector; the testing mechanism is suitable for being arranged at the position of the conveying line, the testing mechanism is electrically connected with the testing connector, a testing area is formed on the conveying line, and the testing mechanism is suitable for testing the photovoltaic module at the testing area.

Optionally, the test mechanism comprises one or both of the following mechanisms: the IV testing mechanism comprises an IV tester and a testing light source, the IV tester is electrically connected with the testing connector, the testing light source is arranged corresponding to the testing area, and the testing light source is suitable for irradiating the photovoltaic module; the EL test mechanism comprises an EL tester and an EL image acquisition part, wherein the EL tester is electrically connected with the test connector, the EL image acquisition part is arranged corresponding to the test area, and the EL image acquisition part is suitable for acquiring the image of the photovoltaic module.

Optionally, the testing mechanism includes an electronic component, the IV tester and the EL tester are electrically connected to the test connector through the electronic component, and one of the IV tester and the EL tester is electrically connected to the test connector by controlling the electronic component.

Optionally, the manipulator moves synchronously with the movement of the conveyor line.

Optionally, the EL image capturing section is a line camera.

Optionally, the clamping hand further includes a first rotation driving portion, the first rotation driving portion is connected with the driving end of the plug driving piece and the first clamp, and the first rotation driving portion drives the first clamp to move so that the power connector rotates.

Optionally, the clamping hand further includes a second rotary driving portion, the second rotary driving portion is disposed on the mechanical arm, the second rotary driving portion is connected with the test connector, and the second rotary driving portion drives the test connector to move so that the test connector rotates.

Optionally, the photovoltaic module testing device further comprises a visual identification part, a rear detection part and a controller, wherein the visual identification part is suitable for collecting the three-dimensional gesture of the power connector, the rear detection part is suitable for being arranged at the head of the conveying line, the rear detection part is suitable for detecting whether the head of the conveying line is provided with the photovoltaic module, and the controller is electrically connected with the manipulator, the testing mechanism, the visual identification part and the rear detection part.

Optionally, the testing area includes an IV testing area, the photovoltaic module testing device further includes a middle detecting member and a controller, the middle detecting member is adapted to be disposed at a position corresponding to the testing light source, the middle detecting member is adapted to detect whether the photovoltaic module reaches the IV testing area corresponding to the testing light source, and the controller is electrically connected with the middle detecting member.

Optionally, the test area includes an EL test area, the photovoltaic module test device further includes a front detecting element and a controller, the front detecting element is adapted to be disposed at a position corresponding to the EL image capturing portion, the front detecting element is adapted to detect whether the photovoltaic module reaches the EL test area corresponding to the EL image capturing portion, and the controller is electrically connected to the front detecting element.

The utility model has the following advantages:

1. when testing the photovoltaic module, the first clamp of the manipulator on the two sides of the conveying line grabs the power connector of the photovoltaic module, then the plug driving piece drives at least one of the first clamp and the test connector to move, so that the power connector is inserted into the test connector, then the test mechanism tests the photovoltaic module at the test area to realize the test of the photovoltaic module, after the test is finished, the plug driving piece drives at least one of the first clamp and the test connector to move, the power connector is pulled out from the test connector, and the first clamp is controlled to place the power connector on the photovoltaic body of the photovoltaic module, so that the photovoltaic module on the conveying line is sequentially detected. Above-mentioned testing arrangement's manipulator sets up in the both sides of transfer chain, and testing mechanism sets up the position at the transfer chain place, only snatchs power connector through the manipulator and can realize the test to photovoltaic module, realizes testing at the in-process of transmitting photovoltaic module, compares with the test mode of installing test fixture in prior art on photovoltaic module's frame, can reduce test fixture's installation, and test efficiency is high, also can reduce the technology link, reduces photovoltaic module damage risk, practices thrift the cost.

2. After IV tests are completed, the power supply communicated with the test connector on the manipulator is switched to an EL power supply, the photovoltaic module continues to move, the linear array camera starts to collect, the photovoltaic module integrally stops collecting through the EL image collecting part, an image is generated, the EL tests are completed through the image, dynamic imaging is achieved through a plurality of linear array cameras arranged in a gap of a conveying line, EL test image collection is completed in the operation process of the photovoltaic module, the equipment area is effectively reduced, the photovoltaic module can complete image collection without multiple start and stop, the test efficiency is higher, the cost is lower, test stations can be reduced through EL dynamic tests, and the detection efficiency is improved.

3. One of the IV tester and the EL tester is conducted with the test connector by controlling the electronic components, and the control is simpler and more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a simplified side view schematic of a photovoltaic module testing apparatus according to an embodiment of the present utility model mated with a conveyor line;

FIG. 2 shows a simplified side view schematic of the photovoltaic module on the conveyor line of FIG. 1 moving to position B;

FIG. 3 shows a schematic top view of the platform and conveyor line of the photovoltaic module testing apparatus of FIG. 1;

FIG. 4 shows a schematic perspective view of a manipulator of the photovoltaic module testing apparatus of FIG. 1;

FIG. 5 shows a schematic front view of the manipulator of FIG. 4;

FIG. 6 illustrates a perspective view of another view of the manipulator of FIG. 4;

FIG. 7 is a perspective view of a first view of a dual channel relay of the gripper and test mechanism of the manipulator of FIG. 4;

FIG. 8 shows a schematic front view of the clamp hand and dual channel relay of FIG. 7;

FIG. 9 shows a bottom schematic view of the clamp hand and dual channel relay of FIG. 7;

FIG. 10 shows a schematic top view of the clamp hand and dual channel relay of FIG. 7;

FIG. 11 shows a schematic side view of the clamp hand and dual channel relay of FIG. 7;

FIG. 12 is a schematic perspective view of the clamping hand of FIG. 7 from a second perspective with a dual channel relay;

FIG. 13 is a schematic perspective view of the clamping hand of FIG. 7 from a third perspective with a dual channel relay;

FIG. 14 shows a side view schematic of a first rotation module of the grip of FIG. 7;

fig. 15 shows a flow diagram of a photovoltaic module testing method using the photovoltaic module testing apparatus of fig. 1.

Reference numerals illustrate:

10. a manipulator; 11. a mechanical arm; 12. clamping hands; 121. inserting and pulling out a driving piece; 122. a first clamp; 123. testing the connector; 124. a first rotation driving section; 1241. a first motor; 1242. a first rotation module; 1243. a drive gear; 1244. a driven gear; 1245. a guide rail; 125. a second rotation driving section; 1251. a second motor; 1252. a second rotation module; 126. a second clamp; 127. a moving member; 128. a fixing member; 13. a mobile chassis; 21. IV testing mechanism; 211. an IV tester; 212. testing a light source; 22. an EL test mechanism; 221. an EL tester; 222. an EL image acquisition unit; 23. a two-channel relay; 30. a visual recognition unit; 41. a rear detection member; 42. a middle detecting member; 43. a front detection member; 44. an encoder; 71. a conveying line; 72. a platform; 80. a photovoltaic module; 81. a power connector.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

In the prior art, installation test fixture is installed on photovoltaic module's tip frame, and the installation and the dismantlement of test all need production personnel to go on, and the cost of labor is higher to test fixture is farther with the terminal box distance, and the power connector of terminal box can't be directly connected with the connector of test fixture, need make the power connector of terminal box be connected with the connector of test fixture through increasing the test extension line, and the test extension line needs frequent change, adds the test fixture, and the accessory cost is higher.

As shown in fig. 1 to 4 and 8, the photovoltaic module testing apparatus of the present embodiment includes: the device comprises two manipulators 10 and a testing mechanism, wherein the two manipulators 10 are suitable for being arranged on two sides of a conveying line 71 for conveying the photovoltaic module 80, each manipulator 10 comprises a manipulator 11 and a clamping hand 12, each clamping hand 12 comprises a plug-in driving piece 121, a first clamp 122 and a testing connector 123, the plug-in driving piece 121 is fixed on the manipulator 11, the first clamp 122 is connected with the driving end of the plug-in driving piece 121, the first clamp 122 is suitable for clamping the power connector 81 of the photovoltaic module 80, and the plug-in driving piece 121 drives the first clamp 122 to move so as to enable the power connector 81 to be inserted into the testing connector 123 and enable the power connector 81 to be pulled out of the testing connector 123; the test mechanism is adapted to be disposed at a location of the conveyor line 71, the test mechanism is electrically connected to the test connector 123, a test area is formed on the conveyor line 71, and the test mechanism is adapted to test the photovoltaic module 80 at the test area.

When the photovoltaic module testing device of the embodiment is applied to testing the photovoltaic module 80, the first clamp 122 of the manipulator 10 at two sides of the conveying line 71 grabs the power connector 81 of the photovoltaic module 80, then the first clamp 122 is driven by the plug driving piece 121 to move, so that the power connector 81 is inserted into the testing connector 123, then the testing mechanism tests the photovoltaic module 80 at the testing area, testing of the photovoltaic module 80 is achieved, after testing is completed, the first clamp 122 is driven by the plug driving piece 121 to move, the power connector is pulled out from the testing connector 123, the first clamp 122 is controlled to place the power connector 81 on the photovoltaic body of the photovoltaic module 80, and thus the photovoltaic module 80 on the conveying line 71 is sequentially detected. Above-mentioned testing arrangement's manipulator 10 sets up in the both sides of transfer chain 71, and testing mechanism sets up the position at transfer chain 71 place, only snatchs power connector 81 through manipulator 10 and can realize the test to photovoltaic module 80, realizes testing at the in-process of transmitting photovoltaic module 80, compares with the test mode of installing test fixture on the frame of photovoltaic module 80 among the prior art, can reduce test fixture's installation, and test efficiency is high, also can reduce the technology link, reduces photovoltaic module 80 damage risk, practices thrift the cost.

It will be appreciated that, as an alternative embodiment, the test connector 123 is connected to the driving end of the plug driving member 121, and the plug driving member 121 drives the test connector 123 to move, or the first clamp 122 is connected to one driving end of the plug driving member 121, and the test connector 123 is connected to the other driving end of the plug driving member 121, and the plug driving member 121 drives the first clamp 122 and the test connector 123 to move simultaneously.

In the prior art, the test fixture adopts the probe to press down to be connected with the power connector of the junction box, and the probe is easy to cause the inside damage or poor contact of the photovoltaic module when pressing down, thereby affecting the test effect and ensuring low test safety. The manipulator 10 of the testing device grabs the power connector 81 and inserts the power connector 81 and the testing connector 123, so that the internal damage or poor contact of the photovoltaic module 80 is not caused, and the testing safety is improved.

It should be noted that, the photovoltaic module 80 includes a photovoltaic body and two junction boxes, each junction box includes a box body and a power connector 81, the two power connectors 81 are a positive connector and a negative connector respectively, the photovoltaic body includes a battery piece, EVA, a back plate, a frame, and the like, and the photovoltaic body and the mechanical arm 11 all adopt structures in the prior art, which are not described in detail herein.

Specifically, the plug driving member 121 is an air cylinder, and it is understood that the plug driving member 121 may be an oil cylinder, an electric cylinder, or the like. The first clamp 122 includes two clamps and a driving member that drives the two clamps to open or close, for example, a finger cylinder or the like.

In this embodiment, as shown in fig. 1, 2 and 7, the test mechanism includes one or two of the following mechanisms: IV test mechanism 21 and EL test mechanism 22, IV test mechanism 21 includes IV tester 211 and test light source 212, IV tester 211 is electrically connected with test connector 123, test light source 212 is disposed corresponding to the test area, and test light source 212 is adapted to illuminate photovoltaic module 80. The EL test mechanism 22 includes an EL tester 221 and an EL image pickup section 222, the EL tester 221 is electrically connected with the test connector 123, the EL image pickup section 222 is provided corresponding to the test area, and the EL image pickup section 222 is adapted to pick up an image of the photovoltaic module 80. When the test mechanism includes the IV test mechanism 21 and the EL test mechanism 22, different tests can be performed on the same photovoltaic module 80 in the test area, and the test efficiency is high.

Specifically, the IV tester 211 and the EL tester 221 are both provided on the robot arm 11, and it is understood that the IV tester 211 and the EL tester 221 may be provided on the ground on one side of the conveyance line 71, or the like.

It should be noted that, the IV tester 211, the test light source 212, and the EL tester 221 are all configured in the prior art, and are not described in detail herein.

In this embodiment, as shown in fig. 1, 2 and 7, the testing mechanism includes an electronic component, the IV tester 211 and the EL tester 221 are electrically connected to the test connector 123 through the electronic component, and one of the IV tester 211 and the EL tester 221 is electrically connected to the test connector 123 through controlling the electronic component. By controlling the electronic components, one of the IV tester 211 and the EL tester 221 is turned on with the test connector 123, and control is simpler. Specifically, the electronic component is a two-channel relay 23, and the testing efficiency is high by controlling the two-channel relay 23 to automatically switch the testing links. It will be appreciated that as an alternative embodiment, the electronic component includes two switches, the IV tester 211 and the test connector 123 are connected to form a circuit, the EL tester 221 and the test connector 123 form a circuit, and one switch is provided in each circuit, so that one of the IV tester 211 and the EL tester 221 is conducted with the test connector 123 by controlling the two switches.

In this embodiment, the manipulator 10 moves synchronously along with the movement of the conveying line 71, so that the manipulator 10 can move synchronously along with the movement of the photovoltaic module 80, and can perform different tests on the same photovoltaic module 80 in sequence, so that the test efficiency is high. It will be appreciated that as an alternative embodiment, when the testing mechanism includes only the IV testing mechanism 21, the manipulator 10 is fixed to one side of the conveyor line 71, and the manipulator 10 cannot move synchronously with the movement of the conveyor line 71.

Specifically, as shown in fig. 3 to 6, the photovoltaic module testing apparatus further includes a stage 72, the manipulator 10 is movably disposed on the stage 72, the manipulator 10 further includes a moving chassis 13, the moving chassis 13 is movably disposed on the stage 72, and the mechanical arm 11, the IV tester, and the EL tester are all disposed on the moving chassis 13. It will be appreciated that the platform 72 may alternatively be omitted and the robot 10 may be movably disposed on the floor.

The movement of the moving chassis 13 is driven by a linear driving mechanism, for example, the linear driving mechanism is a screw nut mechanism, etc., or a driving wheel and a driving mechanism may be provided on the moving chassis 13, and the driving mechanism rotates with the driving wheel, so that the moving chassis 13 can be moved, which is not limited to this, and is not repeated here.

In this embodiment, the EL image capturing portion 222 is a line camera, and the line camera dynamically captures images of the photovoltaic module 80 while the conveyor line 71 transmits the photovoltaic module 80, so as to increase the production takt of the test link and reduce the cost of the camera. Dynamic imaging is achieved through the plurality of linear array cameras arranged in the gap of the conveying line, EL test image acquisition is completed in the operation process of the photovoltaic module, the equipment area is effectively reduced, the photovoltaic module can complete image acquisition without multiple start and stop, the test efficiency is higher, the cost is lower, the test station can be reduced through EL dynamic test, and the detection efficiency is improved. Specifically, the line camera is a near infrared line camera or the like.

It can be appreciated that, as an alternative embodiment, the EL image capturing portion 222 is an area array camera, for example, a plurality of rows of area array cameras may be used for imaging simultaneously, at this time, the photovoltaic module 80 and the manipulator 10 are required to perform static test, the manipulator 10 pulls the power connector 81 out of the test connector 123 after the test is completed, the power connector 81 of the photovoltaic module 80 is disconnected from the test connector 123 of the manipulator 10, and then the manipulator 10 places the power connector 81 on the photovoltaic body, but the test procedure consumes more time correspondingly, and the camera cost is increased; a single-row area array camera may be used, and the photovoltaic module 80 is moved three times for imaging, but the corresponding test procedure requires longer time than the imaging mode using multiple rows of area array cameras.

In this embodiment, as shown in fig. 7 to 13, the clamping hand 12 further includes a first rotation driving portion 124, where the first rotation driving portion 124 is connected to the driving end of the plug-in driving member 121 and the first clamp 122, and the first rotation driving portion 124 drives the first clamp 122 to move so as to rotate the power connector 81. When the power connector 81 clamped by the first clamp 122 and the test connector 123 are misplaced and cannot be plugged, the first clamp 122 is driven to move by the first rotary driving part 124, so that the power connector 81 can be driven to rotate until the power connector 81 and the test connector 123 can be plugged; when there is no misalignment between the power connector 81 held by the first clamp 122 and the test connector 123, the first rotation driving portion 124 may not be controlled at this time. The first rotation driving portion 124 can meet the plugging requirements of the power connectors 81 with different angles. Specifically, the first rotation driving part 124 includes a first motor 1241 and a first rotation module 1242, the first motor 1241 is connected to the first fixture 122 through the first rotation module 1242, the moving part 127 is fixed on the driving end of the plugging driving part 121, and the first motor 1241 is disposed on the moving part 127.

Specifically, as shown in fig. 14, the first rotation module 1242 includes a driving gear 1243 and a driven gear 1244, the driving gear 1243 is connected with the first motor 1241, the driven gear 1244 is meshed with the driving gear 1243, the first fixture 122 is disposed on the driven gear 1244, the first motor 1241 drives the driving gear 1243 to rotate, drives the driven gear 1244 to rotate, and further drives the first fixture 122 to rotate around the clamping center line thereof, so as to drive the power connector 81 to rotate. Driven gear 1244 is preferably a sector gear to avoid interference with other parts. A guide mechanism is disposed between the driven gear 1244 and the moving member 127, and the driven gear 1244 is guided by the guide mechanism, for example, the guide mechanism includes a guide rail 1245 and a chute, one of the driven gear 1244 and the moving member 127 is provided with the guide rail 1245, and the other is provided with the chute, the guide rail 1245 slides in the chute, and the guide rail 1245 and the chute are arc-shaped.

In this embodiment, the clamping hand 12 further includes a second rotation driving portion 125, where the second rotation driving portion 125 is disposed on the mechanical arm 11, the second rotation driving portion 125 is connected to the test connector 123, and the second rotation driving portion 125 drives the test connector 123 to move so as to rotate the test connector 123. When the power connector 81 and the test connector 123 clamped by the first clamp 122 are misplaced and cannot be plugged, the first clamp 122 is driven to move by the first rotary driving part 124, the test connector 123 is driven to move by the second rotary driving part 125, the power connector 81 and the test connector 123 are respectively driven to rotate until the power connector 81 and the test connector 123 can be plugged, for example, when only the first rotary driving part 124 is arranged, the power connector 81 and the test connector 123 can be plugged only by rotating 60 degrees, and when the first rotary driving part 124 and the second rotary driving part 125 are arranged, the power connector 81 and the test connector 123 can be plugged at the same time by rotating 30 degrees, the rotating time is shortened by half, and the testing efficiency is improved.

It is understood that, as an alternative embodiment, only the first rotation driving portion 124 may be provided, the second rotation driving portion 125 may not be provided, or only the second rotation driving portion 125 may be provided, and the first rotation driving portion 124 may not be provided.

Specifically, the clamping hand 12 further includes a second clamp 126, the second clamp 126 is adapted to clamp the test connector 123, the second rotary driving portion 125 includes a second motor 1251 and a second rotary module 1252, the second motor 1251 is connected to the second clamp 126 through the second rotary module 1252, the second motor 1251 can drive the second clamp 126 to rotate around a clamping center line thereof through the second rotary module 1252, a fixing member 128 is disposed on a fixing portion of the plug driving member 121, the second motor 1251 is disposed on the fixing member 128, and the second rotary module 1252 has the same structure as the first rotary module 1242, which is not described in detail herein.

In this embodiment, as shown in fig. 1, 2, 4 and 7, the photovoltaic module testing device further includes a visual identification portion 30, a rear detection member 41 and a controller, the visual identification portion 30 is adapted to collect the three-dimensional gesture of the power connector 81, the rear detection member 41 is adapted to be disposed at the head of the conveying line 71, the rear detection member 41 is adapted to detect whether the photovoltaic module 80 is disposed on the head of the conveying line 71, and the controller is electrically connected with the manipulator 10, the testing mechanism, the visual identification portion 30 and the rear detection member 41. When the rear detection member 41 detects that the photovoltaic module 80 is arranged on the head of the conveying line 71, the rear detection member 41 sends a photovoltaic in-place signal detected by the rear detection member 41 to the controller, the controller controls the visual recognition part 30 to collect the three-dimensional gesture of the power connector 81 according to the photovoltaic in-place signal detected by the rear detection member 41, and then the controller controls the manipulator 10 to grab according to the three-dimensional gesture of the power connector 81 collected by the visual recognition part 30, so that grabbing precision of the power connector 81 is improved. Specifically, the visual recognition unit 30 is a stereo camera or the like, and the rear detection element 41 is a rear photoelectric switch, a front proximity switch, or the like. The stereoscopic camera may also be referred to as a line structure light sensor.

In this embodiment, the test area includes an IV test area, the photovoltaic module test apparatus further includes a middle detecting member 42 and a controller, the middle detecting member 42 is adapted to be disposed at a position corresponding to the test light source 212, the middle detecting member 42 is adapted to detect whether the photovoltaic module 80 reaches the IV test area corresponding to the test light source 212, and the controller is electrically connected to the middle detecting member 42. When the middle detecting piece 42 detects that the photovoltaic module 80 exists in the IV testing area, the middle detecting piece 42 sends a photovoltaic in-place signal detected by the middle detecting piece 42 to the controller, and the controller controls the testing light source 212 to irradiate the photovoltaic module 80 and controls the electronic components to enable the IV tester 211 of the testing mechanism to be conducted with the testing connector 123 according to the photovoltaic in-place signal detected by the middle detecting piece 42, and the IV tester 211 conducts IV testing on the photovoltaic module 80. The photovoltaic module 80 can be accurately detected to reach the IV test area through the middle detection piece 42, the automation of the IV test is realized, and the electronic components and the like are not required to be manually controlled. Specifically, the middle detecting element 42 is a middle photoelectric switch, a middle proximity switch, or the like.

In this embodiment, the test area includes an EL test area, the photovoltaic module test apparatus further includes a front detecting member 43 and a controller, the front detecting member 43 is adapted to be disposed at a position corresponding to the EL image capturing portion 222, the front detecting member 43 is adapted to detect whether the photovoltaic module 80 reaches the EL test area corresponding to the EL image capturing portion 222, and the controller is electrically connected to the front detecting member 43. When the front detecting piece 43 detects that the photovoltaic module 80 exists in the EL test area, the front detecting piece 43 sends a photovoltaic in-place signal detected by the front detecting piece 43 to the controller, and the controller controls the electronic components to enable the EL tester 221 to be conducted with the test connector 123 and controls the EL image acquisition part 222 to acquire images of the photovoltaic module 80 according to the photovoltaic in-place signal detected by the front detecting piece 43. The front detection piece 43 can accurately detect that the photovoltaic module 80 reaches the EL test area, so that the EL test is automated, and electronic components and the like do not need to be manually controlled. Specifically, the front detecting element 43 is a front photoelectric switch, a front proximity switch, or the like.

In the present embodiment, the conveyance line 71 includes a first conveyance line and a second conveyance line provided along the conveyance direction of the conveyance photovoltaic module 80, and the front detection piece 43 is provided between the first conveyance line and the second conveyance line.

The front and rear directions are directions based on the transmission direction, the transmission direction is a direction from left to right in fig. 1 and 2, and the broken line in fig. 1 and 2 is an electrical connection between the respective components.

The following describes the operation of the photovoltaic module testing apparatus with reference to fig. 1, 2, 8 and 15:

the transfer chain 71 starts to run, the rear photoelectric switch at A detects that the photovoltaic module 80 arrives, the PLC controls the transfer chain 71 to stop, so that the photovoltaic module 80 stops at A, the PLC control line structure optical sensor starts to scan the three-dimensional gesture of the power connector 81 of the junction box at two sides of the photovoltaic module 80, the PLC analyzes the position and angle information of the power connector 81, the PLC controls the clamping hand 12 of the manipulator 10 measured by the transfer chain 71 to move above the junction box according to the three-dimensional information of the power connector 81 and clamp the power connector 81, then the corresponding rotating module is driven by a motor to move, the power connector 81 and the test connector 123 can be driven to rotate to a fixed angle, and then the PLC controls the cylinder to act, so that the power connector 81 is in butt joint with the test connector 123; then the photovoltaic module 80 and the manipulator 10 synchronously move to a position B, a middle photoelectric switch at the position B detects the photovoltaic module 80, a PLC controls the conveying line 71 to stop, a PLC controls the two-channel relay 23 to be communicated with an IV tester and a test light source 212 to be started, and the IV test is carried out on the photovoltaic module 80; after IV testing is completed, the photovoltaic module 80 and the manipulator 10 synchronously move, a front photoelectric switch at the position C senses the photovoltaic module 80, a PLC controls the two-channel relay 23 to be communicated with the EL tester and controls the camera to be communicated with the encoder 44, the camera starts to collect images of the photovoltaic module 80, and the speed of camera collection is the same as that of the conveying line 71; when the photovoltaic module 80 passes through the C position completely, the image acquisition of the EL test is completed, the PLC control cylinder stretches out after the EL test is completed, then the control manipulator 10 places the power connector 81 on the photovoltaic body, the photovoltaic module 80 is transferred to the next procedure, then the clamping hand 12 of the manipulator 10 is reset and the manipulator 10 moves to the initial position, the above-mentioned processes are repeated, the photovoltaic module 80 on the conveying line 71 is sequentially detected, the power connector 81 of the junction box is identified and positioned through the visual identification part 30 before the final detection of the photovoltaic module 80, the first clamp 122 at one end of the clamping hand 12 grabs the power connector 81 of the junction box, the second clamp 126 at the other end of the clamping hand 12 is provided with the test connector 123, the power connection is automatically realized, the test fixture is not required to be installed, and the test connector 123 is electrically connected with the IV tester and the EL tester through the double-channel relay 23, the test connector 123 is communicated with the IV tester or the EL tester through the PLC control relay 23, the intelligent switching of different test instruments is realized, and further the IV test, the EL test of the EL module 80 is realized, the full-channel test, the full-process is realized, the full-process is unnecessary, the process is omitted, and the unnecessary is saved.

It should be noted that, the encoder 44 converts the displacement signal of the photovoltaic module 80 into an electrical signal, and through connection with the camera, the camera can be controlled to image once every 0.1mm (this data is used for example) of the movement of the photovoltaic module 80, so that the image of the whole photovoltaic module 80 can be completely acquired during the movement process of the photovoltaic module 80.

As shown in fig. 1 to 4 and 8, the method for testing the photovoltaic module using the device for testing the photovoltaic module comprises the following steps:

step S10: the first jigs 122 controlling the two manipulators 10 respectively grasp the two power connectors 81 of the photovoltaic modules 80 on the conveyor line 71;

step S20: controlling the plug driving parts 121 of the two manipulators 10 to drive the first clamp 122 to move so that the power connector 81 is inserted into the test connector 123 on the manipulator 10;

step S30: controlling the testing mechanism to test the photovoltaic module 80 at the testing area on the conveying line 71;

step S40: after the photovoltaic module 80 is tested, the plug driving piece 121 is controlled to drive the first clamp 122 to move, the power plug connector is pulled out from the test connector 123, and the first clamp 122 is controlled to place the power plug connector 81 on the photovoltaic body of the photovoltaic module 80.

The manipulator 10 sets up in the both sides of transfer chain 71, and testing mechanism sets up the position at transfer chain 71 place, only snatchs power connector 81 through manipulator 10 and can realize the test to photovoltaic module 80, realizes testing at the in-process of transmitting photovoltaic module 80, compares with the test mode of installing test fixture on the frame of photovoltaic module 80 among the prior art, can reduce test fixture's installation, and test efficiency is high, also can reduce the technological link, reduces photovoltaic module 80 damage risk, practices thrift the cost.

Prior to step S10, the photovoltaic module testing method further includes: acquiring whether a signal of the photovoltaic module 80 exists on the head of the conveying line 71 detected by the rear detecting member 41; the visual recognition part 30 is controlled to collect the three-dimensional gesture of the power connector 81 according to the photovoltaic in-place signal detected by the rear detection part 41; when the photovoltaic module 80 moves to the grabbing position on the conveying line 71 to control the conveying line 71 to stop, the manipulator 10 grabs the power connector 81 at the grabbing position, and grabbing precision of the power connector 81 is improved.

When the grabbing position is not in the testing area, between the step S20 and the step S30, the photovoltaic module testing method further includes: the two manipulators 10 and the conveying line 71 are controlled to synchronously move, so that the two manipulators 10 and the photovoltaic module 80 synchronously move to a testing area, and the photovoltaic module 80 is conveniently tested. When the testing mechanism includes the IV testing mechanism 21 and the EL testing mechanism 22, the manipulator 10 moves synchronously along with the movement of the conveying line 71 in the testing area, so that the manipulator 10 can move synchronously along with the movement of the photovoltaic module 80, and different tests can be sequentially performed on the same photovoltaic module 80, so that the testing efficiency is high.

It will be appreciated that as an alternative embodiment, when the testing mechanism comprises only IV testing mechanism 21, the manipulator 10 is fixed to one side of the conveyor line 71, at which time the manipulator 10 cannot move synchronously with the movement of the conveyor line 71, at which time the gripping position is within the test area.

Prior to step S30, the photovoltaic module testing method includes: acquiring whether a signal of the photovoltaic module 80 exists in the test area detected by the middle detecting piece 42; in step S30, the testing mechanism is controlled to test the photovoltaic module 80 at the test area on the conveyor line 71 according to the photovoltaic in-place signal detected by the intermediate detecting member 42. The photovoltaic module 80 can be accurately detected to reach the IV test area through the middle detection piece 42, the automation of the IV test is realized, and the electronic components and the like are not required to be manually controlled.

Between step S10 and step S20, the photovoltaic module testing method further includes: the first rotation driving part 124 is controlled to drive the first clamp 122 to move so as to rotate the power connector 81 to a first preset angle. When the power connector 81 clamped by the first clamp 122 and the test connector 123 are misplaced and cannot be plugged, the first clamp 122 is driven to move by the first rotary driving part 124, so that the power connector 81 can be driven to rotate until the power connector 81 and the test connector 123 can be plugged; when there is no misalignment between the power connector 81 held by the first clamp 122 and the test connector 123, the first rotation driving portion 124 may not be controlled at this time. The first rotation driving portion 124 can meet the plugging requirements of the power connectors 81 with different angles.

The first rotation driving part 124 is controlled to drive the first clamp 122 to move, and the second rotation driving part 125 is controlled to drive the test connector 123 to rotate to a second preset angle. When the power connector 81 and the test connector 123 clamped by the first clamp 122 are misplaced and cannot be plugged, the first clamp 122 is driven to move by the first rotary driving part 124, the test connector 123 is driven to move by the second rotary driving part 125, the power connector 81 and the test connector 123 are respectively driven to rotate until the power connector 81 and the test connector 123 can be plugged, for example, when only the first rotary driving part 124 is arranged, the power connector 81 and the test connector 123 can be plugged only by rotating 60 degrees, and when the first rotary driving part 124 and the second rotary driving part 125 are arranged, the power connector 81 and the test connector 123 can be plugged at the same time by rotating 30 degrees, the rotating time is shortened by half, and the testing efficiency is improved.

Step S30 includes: step S31: the test light source 212 of the test mechanism is controlled to irradiate the photovoltaic module 80, and the electronic components are controlled to enable the IV tester 211 of the test mechanism to be conducted with the test connector 123, so that the IV tester 211 performs IV test on the photovoltaic module 80; step S32: after IV test is completed, the two manipulators 10 and the conveying line 71 are controlled to synchronously move, so that the two manipulators 10 and the photovoltaic module 80 synchronously move; step S34: the control electronics turn on the EL tester 221 of the test mechanism and the test connector 123, and control the EL image pickup unit 222 of the test mechanism to pick up an image of the photovoltaic module 80. When the photovoltaic module 80 is tested, the photovoltaic module 80 is subjected to the IV test, and then the photovoltaic module 80 is subjected to the EL test after the IV test is finished, so that different tests can be sequentially performed on the same photovoltaic module 80, and the test efficiency is high.

It will be appreciated that, as an alternative embodiment, the photovoltaic module 80 may be tested for EL first and then the photovoltaic module 80 may be tested for IV, and the positions of the test light source 212 and the EL image acquisition unit 222 may need to be adjusted.

Prior to step S34, step S30 further includes: step S33: acquiring whether the photovoltaic module 80 detected by the front detecting member 43 reaches the EL test area; in step S34, the electronic component is controlled to conduct the EL tester 221 and the test connector 123 according to the photovoltaic in-place signal detected by the front detecting member 43, and the EL image capturing section 222 is controlled to capture the image of the photovoltaic module 80. The front detection piece 43 can accurately detect that the photovoltaic module 80 reaches the EL test area, so that the EL test is automated, and electronic components and the like do not need to be manually controlled.

From the above description, it can be seen that the above-described embodiments of the present utility model achieve the following technical effects:

1. the power connector 81 of the junction box and the test connector 123 on the manipulator 10 are automatically communicated through the manipulator 10, so that the test is automatically completed, unmanned operation is realized, the manual installation and dismantling process links of the test tool are reduced, the damage risk of the assembly is reduced, and the cost is saved.

2. The IV tester and the EL tester share one test connector 123 on the manipulator 10, that is, the test connector 123 is integrated, different test procedures are completed by controlling the relay to intelligently switch, and the system integration level is high and the test efficiency is high.

3. And during EL test, a linear array camera is adopted for dynamic imaging, the cost of the linear array camera is reduced, the production beat of a single loop is high, the EL test time is shortened, the detection efficiency is improved, and the detection is intelligent.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. A photovoltaic module testing device, comprising:

-two manipulators (10) adapted to be arranged on both sides of a conveyor line (71) conveying a photovoltaic module (80), each manipulator (10) comprising a manipulator (11) and a gripper (12), the gripper (12) comprising a plug-in drive (121), a first clamp (122) and a test connector (123), the plug-in drive (121) being fixed to the manipulator (11), at least one of the first clamp (122) and the test connector (123) being connected to the drive end of the plug-in drive (121), the first clamp (122) being adapted to clamp a power connector (81) of the photovoltaic module (80), the plug-in drive (121) driving at least one of the first clamp (122) and the test connector (123) to move so as to insert the power connector (81) into the test connector (123) and to extract the power connector (81) from the test connector (123);

The test mechanism is suitable for being arranged at the position where the conveying line (71) is located, the test mechanism is electrically connected with the test connector (123), a test area is formed on the conveying line (71), and the test mechanism is suitable for testing the photovoltaic module (80) at the test area.

2. The photovoltaic module testing device of claim 1, wherein the testing mechanism comprises one or both of:

IV test mechanism (21) comprising an IV tester (211) and a test light source (212), said IV tester (211) being electrically connected to said test connector (123), said test light source (212) being arranged in correspondence of said test area, said test light source (212) being adapted to illuminate said photovoltaic module (80);

the EL test mechanism (22) comprises an EL tester (221) and an EL image acquisition part (222), wherein the EL tester (221) is electrically connected with the test connector (123), the EL image acquisition part (222) is arranged corresponding to the test area, and the EL image acquisition part (222) is suitable for acquiring images of the photovoltaic module (80).

3. The photovoltaic module testing apparatus according to claim 2, wherein the testing mechanism includes an electronic component through which the IV tester (211) and the EL tester (221) are electrically connected to the test connector (123), and one of the IV tester (211) and the EL tester (221) is brought into conduction with the test connector (123) by controlling the electronic component.

4. A photovoltaic module testing device according to any one of claims 1 to 3, characterized in that the manipulator (10) moves synchronously with the movement of the conveyor line (71).

5. The photovoltaic module testing apparatus according to claim 2, wherein the EL image capturing section (222) is a line camera.

6. A photovoltaic module testing device according to any one of claims 1 to 3, wherein the clamping hand (12) further comprises a first rotation driving part (124), the first rotation driving part (124) is connected with the driving end of the plug driving member (121) and the first clamp (122), and the first rotation driving part (124) drives the first clamp (122) to move so as to rotate the power connector (81).

7. The photovoltaic module testing apparatus according to claim 6, wherein the grip (12) further comprises a second rotation driving part (125), the second rotation driving part (125) is disposed on the mechanical arm (11), the second rotation driving part (125) is connected with the test connector (123), and the second rotation driving part (125) drives the test connector (123) to move so as to rotate the test connector (123).

8. A photovoltaic module testing device according to any one of claims 1 to 3, characterized in that it further comprises a visual recognition part (30), a rear detection part (41) and a controller, said visual recognition part (30) being adapted to collect the three-dimensional attitude of the power connector (81), said rear detection part (41) being adapted to be arranged at the head of the conveyor line (71), said rear detection part (41) being adapted to detect whether there is a photovoltaic module (80) on the head of the conveyor line (71), said controller being electrically connected to the manipulator (10), the testing mechanism, the visual recognition part (30), the rear detection part (41).

9. A photovoltaic module testing device according to claim 2 or 3, characterized in that the testing area comprises an IV testing area, the photovoltaic module testing device further comprising a middle detecting member (42) and a controller, the middle detecting member (42) being adapted to be arranged at a position corresponding to the testing light source (212), the middle detecting member (42) being adapted to detect whether the photovoltaic module (80) reaches the IV testing area corresponding to the testing light source (212), the controller being electrically connected to the middle detecting member (42).

10. A photovoltaic module testing device according to claim 2 or 3, characterized in that the testing area comprises an EL testing area, the photovoltaic module testing device further comprising a front detecting member (43) and a controller, the front detecting member (43) being adapted to be arranged at a position corresponding to the EL image capturing section (222), the front detecting member (43) being adapted to detect whether the photovoltaic module (80) reaches the EL testing area corresponding to the EL image capturing section (222), the controller being electrically connected to the front detecting member (43).