JP6415229B2 - Solar cell module inspection device and solar cell module inspection vehicle - Google Patents

Description

  The present invention relates to a technique for inspecting a solar cell module at an installation site.

  As a technique for inspecting the solar cell module, a technique for inspecting the solar cell module while irradiating light from the light source to the solar cell module (Patent Document 1), taking a thermal image of the surface of the solar cell module, A technique for inspecting a battery module (Cited document 2) is known.

JP 2010-171065 A JP 2010-153552 A

  When a solar cell module is newly installed, it is preferable that the solar cell module can be inspected at the installation site because there is a possibility of initial failure or damage during the transportation process. In addition, it is preferable that the solar cell module can be inspected at the installation site without transporting the solar cell module to the inspection facility even in the periodic inspection of the solar cell module already installed in the solar power plant or the like.

  And if the solar cell module inspection vehicle which can perform a solar cell module inspection using the state where the inspection device is mounted is configured, and the solar cell module is inspected using the solar cell module inspection vehicle, the inspection at the installation site It can be expected that the work can be carried out with less work burden.

  However, as described above, there are various types of inspection of the solar cell module, and it is difficult to mount each inspection device for inspection on the solar cell module inspection vehicle because of space.

  Then, this invention makes it a subject to provide the solar cell module inspection vehicle carrying the space-saving solar cell module inspection apparatus which can test | inspect various solar cell modules.

In order to achieve the above object, the present invention provides a solar cell module inspection apparatus installed in a luggage compartment of a van type automobile. Here, the solar cell module inspection apparatus is disposed above the illumination plate, a support base on which the solar cell module is placed, two illumination plates that emit pseudo-sunlight, an illumination plate opening / closing mechanism, and And a thermal image camera for photographing the lower part. Further, the illumination plate opening / closing mechanism is configured so that the two illumination plates are arranged in a horizontal direction in a horizontal posture above the support base , and the pseudo plate is directed downward. It changes between the 1st state which irradiates sunlight, and the 2nd state which each illumination plate rotates from the said 1st state and exposes the downward direction with respect to the said thermal imaging camera. However, the up / down / front / rear / left / right directions of the automobile in a state where the solar cell module inspection apparatus is installed in the luggage compartment are defined as the up / down / front / rear / left / right directions of the solar cell module inspection apparatus.

  Here, in such a solar cell module inspection apparatus, in the first state, the two illumination plates are arranged side by side in the left-right direction, and in the first state, the left illumination plate is in the front-rear direction at the left end. In the first state, the right illuminating plate is pivotally supported at the right end so as to be rotatable about the front-rear axis as the rotation axis. By the illuminating plate opening / closing mechanism, The two illuminating plates may be rotated around the respective rotation axes so that the two illuminating plates open upward in a double-sided manner so as to be in the second state.

Moreover, you may make it equip the above solar cell module inspection apparatus with the camera moving mechanism which moves the said thermal imaging camera to the front-back direction.
Further, the above solar cell module inspection apparatus is provided at the rear of the solar cell module inspection apparatus for sending the solar cell module on the support base in a horizontal posture from the rear of the solar cell module inspection apparatus. While providing the provided insertion port, the support table may be a roller conveyor provided with a plurality of rollers that rotate about a horizontal axis as a rotation axis.

  Further, the solar cell module inspection apparatus described above rotates an arm that can be pulled out rearward from a position accommodated in the solar cell module inspection apparatus, and a horizontal axis provided at the rear end of the arm. You may make it provide the auxiliary roller arm which provided the auxiliary roller which rotates as an axis | shaft at the rear end. Here, the height of the upper end of the auxiliary roller is substantially equal to the height of the upper surface of the support base.

  Further, the solar cell module inspection apparatus acts on the solar cell module placed on the support base, and positions the solar cell module in at least one of the front-rear direction and the left-right direction. You may make it provide the positioning mechanism made into the predetermined position on a support stand.

The present invention also provides a solar cell module inspection vehicle including the above-described inspection device and a van-type automobile having the inspection device mounted in a luggage compartment.
According to the solar cell module inspection apparatus as described above, the two illumination plates are rotated, and the solar cell module below the illumination plate is photographed with a thermal image camera disposed above the illumination plate. While the size of the solar cell module inspection device is limited to a size that can be mounted on a single car, various inspections are performed by illuminating the solar cell module with pseudo-sunlight, and the solar cell module is photographed with a thermal image camera. Both types of inspections performed can be performed.

  As described above, according to the present invention, it is possible to provide a solar cell module inspection vehicle equipped with a space-saving solar cell module inspection device that can inspect various solar cell modules.

It is a figure showing the composition of the inspection vehicle concerning the embodiment of the present invention. It is a figure showing an inspection device concerning an embodiment of the present invention. It is a figure which shows the measurement part which concerns on embodiment of this invention. It is a figure which shows the measurement part which concerns on embodiment of this invention. It is a figure which shows the measuring method using the measuring part which concerns on embodiment of this invention. It is a figure which shows the auxiliary roller arm which concerns on embodiment of this invention. It is a figure which shows the front-back positioning mechanism which concerns on embodiment of this invention. It is a figure which shows the left-right positioning mechanism which concerns on embodiment of this invention. It is a figure which shows the structure in connection with the control system of the inspection apparatus which concerns on embodiment of this invention, and a measurement system. It is a flowchart which shows the solar cell module measurement process which concerns on embodiment of this invention. It is a figure which shows the evaluation method of the bypass diode of the solar cell module which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described.
1A, 1B, and 1C schematically show the configuration of an inspection vehicle according to this embodiment. Here, FIG. 1a schematically shows the inspection vehicle as seen from above, FIG. 1b schematically shows the inspection vehicle as seen from behind, and FIG. 1c schematically shows the inspection vehicle as seen from the left. .

The inspection vehicle is a device used for the inspection of the solar cell module, and includes a van-type vehicle 1 and an inspection device 2 mounted in the luggage compartment of the vehicle 1 as shown in the figure.
A rail 11 extending in the front-rear direction of the automobile 1 is fixedly installed on the floor surface of the cargo compartment of the automobile 1, and a caster 21 riding on the rail 11 is provided on the lower surface of the inspection device 2.
The inspection device 2 is usually fixed in the luggage compartment of the automobile 1. On the other hand, by releasing the fixation of the inspection device 2, as shown in FIG. 1d, the inspection device 2 can move on the rail 11 in the front-rear direction of the automobile 1 using the casters 21, At the time of loading / unloading from the automobile 1, the caster 21 can be used to move from the rail 11 in the cargo compartment to the installation table 3 arranged behind the cargo compartment of the automobile 1. Further, when the inspection apparatus 2 is mounted on the automobile 1, the inspection apparatus 2 can be moved on the rail 11 in the luggage compartment from the installation table 3 disposed behind the cargo compartment of the automobile 1 using the casters 21.

  In addition, casters 31 are also provided on the lower surface of the installation table 3, and the inspection apparatus 2 that has moved onto the installation table 3 can be moved by the installation table 3 while being fixed to the installation table 3. Further, the inspection apparatus 2 can be maintained while being placed on the installation table 3.

  Here, in the following, a description will be given assuming that the direction of the automobile 1 in the up / down / front / rear / left / right direction is the up / down / front / rear / left / right direction of the inspection apparatus 2 in the state of being mounted on the inspection vehicle as shown in FIGS.

Now, FIG. 2a shows the appearance of the inspection apparatus 2 as viewed from above, and FIG. 2b shows the appearance of the inspection apparatus 2 as viewed from the left.
As shown in the figure, the inspection apparatus 2 is roughly composed of a measurement unit 22 and an operation panel 23 arranged so as to cover an upper part of the rear end of the measurement unit 22. 22 is an opening that leads to the interior of 22. Further, the above-described caster 21 is fixed to the lower surface of the measurement unit 22.

  As shown in FIG. 2c, the operation panel 23 is in a form that can be operated and visually recognized by the operator while standing behind the inspection vehicle with the back door open. A switch 231, a keyboard 232, a pointing device 233 such as a mouse, a barcode reader 234, a monitor 235, and a printer 236. The operation panel 23 is provided with a computer that functions as the control device 237 of the inspection device 2. The operation panel 23 is also provided with a fan 238 for performing air cooling inside the measurement unit 22 and a connector 239 for connecting a solar cell module to be inspected with a cable. The operation panel 23 incorporates a measuring device for measuring the power generation characteristics of the solar cell module.

Hereinafter, the configuration of the measurement unit 22 of the inspection apparatus 2 will be described.
The structure of the measurement part 22 is typically shown in FIGS.
3a shows the measurement unit 22 as seen from above, FIG. 3b shows the measurement unit 22 as seen from the left, FIG. 3c shows the measurement unit 22 as seen from the rear, and FIG. It is a schematic representation of the appearance as seen from below.

  As shown in the figure, the measurement unit 22 includes a frame 220, a pair of left and right illumination plates 221, and a pair of left and right illumination plates 221 disposed below the illumination plate 221 and spaced apart from each other in the front-rear direction. A roller base 222 that extends, four air cylinders 223 for opening and closing the two illumination plates 221, a temperature sensor 224 supported by the illumination plate 221 that measures the temperature below the illumination plate 221, and two sheets A thermal image camera 225 that captures a thermal image such as a near-infrared camera that captures the lower part of the illumination plate 221, an illuminance sensor 226 that detects illuminance, and a thermal image camera 225 that moves in the front-rear direction. The camera rail 26 to guide is provided.

  Here, as shown in FIG. 3e, the illumination plate 221 is a device in which a large number of white high color rendering LEDs are arranged on the lower surface, and is driven by an illumination drive unit (not shown). Then, the lower part of the illumination plate 221 is irradiated with pseudo-sunlight.

The roller table 222 is a table in which a plurality of rollers that are rotatably provided with a horizontal axis as a rotation axis are arranged in the front-rear direction, and also functions as a roller conveyor.
Also, as shown in FIG. 4a as seen from above, as seen from the left in FIG. 4b, and as seen from the rear in FIG. 4c, the left illuminating plate 221 is in the front-rear direction to the frame 220 at the left end. The right illuminating plate 221 is connected to the frame 220 at the right end so as to be rotatable about the front-rear axis as a rotation axis. Then, the two illumination plates 221 drive the air cylinder 223, so that the end on the central side in the left-right direction rotates upward from the horizontal posture, and changes its posture to a posture opened in a double-spreading manner. be able to.

  The thermal image camera 225 can be moved to an arbitrary position in the front-rear direction using a camera movement actuator (not shown), and is mounted on the roller base 222 in a state where the two illumination plates 221 are opened. The placed object can be photographed from above. Further, the thermal image camera 225 can adjust the focus by moving up and down using a camera movement actuator.

Therefore, according to the inspection apparatus 2 according to the present embodiment, as illustrated in FIG. 5A, in the state where the two illumination plates 221 are closed, the inspection object 2 passes through the opening below the operation panel 23 behind the inspection apparatus 2. The solar cell module 4 is transferred and placed on the roller table 222 below the illumination plate 221 using the roller conveyor function of the roller table 222, and then the two illumination plates 221 are used to simulate the solar light. The battery module 4 can be illuminated to inspect its power generation characteristics and the like. Further, the temperature sensor 224 is fixed to one of the illumination plates 221 so that the temperature sensor 224 can measure the temperature near the solar cell module 4 in a state where the two illumination plates 221 are closed. The illuminance sensor 226 is arranged so as to detect the illuminance of the pseudo sunlight at a position corresponding to the height of the upper surface of the solar cell module 4 on which the roller base 222 is placed.
However, the solar cell module 4 is transferred and arranged at a position below the illumination plate 221 on the roller base 222 in a state where the output of the solar cell module 4 and the connector 239 of the inspection device 2 are connected by a cable. Perform an inspection.

Further, as shown in FIG. 5b, the two illuminating plates 221 are opened on the roller base 222 by the thermal image camera 225 while being moved using a camera moving actuator in a state where the two illuminating plates 221 are opened in the form of a double door driving the air cylinder 223. The entire surface of the placed solar cell module 4 can be photographed to generate a thermal image representing the temperature distribution of the solar cell module 4 and to perform inspections such as crack detection and power generation failure using the thermal image.

  5a1 and b1 show the measurement unit 22 seen from above, FIGS. 5a2 and b2 show the measurement unit 22 seen from the left, and FIGS. 5a3 and b3 show the measurement unit 22 seen from the rear. Represents.

Here, the inspection apparatus 2 as described above may further include an auxiliary roller arm 27 as shown in FIG. 6A.
Here, FIG. 6a1 shows the measurement unit 22 seen from above, FIG. 6a2 shows the measurement unit 22 seen from the left, and FIG. 6a3 shows the measurement unit 22 seen from the rear. However, in FIG. 6a1, illustration of the thermal image camera 225, the camera rail 26, the illumination plate 221, the air cylinder 223, and the temperature sensor 224 is omitted.

  As shown in the figure, the auxiliary roller arm 27 includes a pair of left and right arms 271 supported by a slide mechanism fixed to the frame 220 below the left and right roller bases 222 so as to be slidable in the front-rear direction, and two arms. A roller 272 is provided so as to be rotatable about a left and right axis connecting the rear end of 271 in the left and right direction.

  Then, as shown in FIG. 6b, the auxiliary roller arm 27 can be pulled out backward and fixed using a slide mechanism. 6b1 shows the measurement unit 22 as seen from above, and FIG. 6b2 shows the measurement unit 22 as seen from the left.

Here, FIGS. 6b2 and 6c show how the auxiliary roller arm 27 is used.
As shown in the drawing, when the solar cell module 4 to be inspected is transferred into the measuring unit 22 of the inspection apparatus 2, the operator first pulls out and fixes the auxiliary roller arm 27. Then, the solar cell module 4 is leaned against the roller 272 of the auxiliary roller arm 27 from the rear, the rear end of the solar cell module 4 is lifted and the solar cell module 4 is rotated and horizontal with the roller 272 as a fulcrum, and the roller 272 Using the roller table 222, the solar cell module 4 is pushed forward into the opening below the operation panel 23 and transferred onto the roller table 222.

By providing such an auxiliary roller arm 27, the burden of transferring the relatively heavy solar cell module 4 into the measuring unit 22 of the inspection apparatus 2 is reduced.
Next, the inspection apparatus 2 as described above may further include a front-rear positioning mechanism 28 as shown in FIG.
Here, FIG. 7a1 shows the measurement unit 22 seen from above, FIG. 7a2 shows the measurement unit 22 seen from the left, and FIG. 7a3 shows the measurement unit 22 seen from the rear. However, in FIG. 7 a 1, illustration of the thermal image camera 225, the camera rail 26, the illumination plate 221, the air cylinder 223, and the temperature sensor 224 is omitted.

  As shown in the drawing, the front / rear positioning mechanism 28 includes a bar 281 that is slidable within a predetermined range in the front-rear direction between the left and right roller bases 222, and a position where the upper end is below the upper surface of the roller base 222. And a holder 282 fixed to the bar 281 in such a manner that it can be slid in the vertical direction between a position slightly above the upper surface. In addition, the holder 282 includes two claw portions that are opposed to each other with an interval in the front and rear direction.

Here, FIGS. 7b and 7c show how to use such a front-rear positioning mechanism 28. FIG.
7b1 and c1 show the measurement unit 22 viewed from above, and FIGS. 7b2 and c2 show the measurement unit 22 viewed from the left.
As shown in FIG. 7 b, when placing the solar cell module 4 to be inspected at a position below the illumination plate 221, if the operator places the solar cell module 4 on the roller base 222, the bar 281. Is pulled out rearward and the holder 282 is slid upward so that the frame of the rear side portion of the solar cell module 4 is positioned between the front and rear claws of the holder 282. Then, as shown in FIG. 7c, the bar 281 is pushed to the maximum forward position where the bar 281 can be slid to move the solar cell module 4 forward, and the position of the solar cell module 4 in the front-rear direction is The rear end of the battery module 4 is positioned at a position determined by the position of the holder 282 when the bar 281 is at the maximum front position.

  According to such a front / rear positioning mechanism 28, the operator pulls out the bar 281, slides the holder 282 upward, and pushes the bar 281 in a simple operation. It can be arranged at a predetermined position.

Next, the inspection apparatus 2 as described above may be provided with a left / right positioning mechanism 29 as shown in FIG.
Here, FIG. 8a1 shows the measurement unit 22 seen from above, FIG. 8a2 shows the measurement unit 22 seen from the left, and FIG. 8a3 shows the measurement unit 22 seen from the rear. However, in FIG. 8a1, illustration of the thermal image camera 225, the camera rail 26, the illumination plate 221, the air cylinder 223, and the temperature sensor 224 is omitted.

  As shown in the figure, the left / right positioning mechanism 29 includes two positioning plates 291 that are respectively disposed on the left and right roller plates and that are long in the front-rear direction, and a moving mechanism 292 that moves the positioning plate 291 in the left / right direction. Have. Here, the moving mechanism 292 can be configured using, for example, a ball screw or the like, and the moving mechanism 292 moves in the reverse direction in the left-right direction in synchronization with the left and right positioning plates 291.

Here, FIGS. 8b and 8c show how to use such a front-rear positioning mechanism 28. FIG.
8b1 and c1 show the measurement unit 22 as seen from above, and FIGS. 8b2 and c2 show the measurement unit 22 as seen from behind.
As shown in FIG. 8b, if the front-rear position on the roller base 222 of the solar cell module 4 to be inspected is positioned with the left and right positioning plates 291 open to the left and right, the operator As shown, the moving mechanism 292 is driven to move the left and right positioning plates 291 toward the center, and the left-right position of the solar cell module 4 is positioned at the center.

  According to such a left-right positioning mechanism 29, the operator can arrange the left-right direction position of the solar cell module 4 at a predetermined position by a simple operation that only drives the moving mechanism 292.

  The left / right positioning mechanism 29 described above can be provided in the inspection apparatus 2 together with the auxiliary roller arm 27 shown in FIG. 6 and the front / rear positioning mechanism 28 shown in FIG. 7, as shown in FIG. 8d. 8d1 shows the measurement unit 22 as seen from above, and FIG. 8d2 shows the measurement unit 22 as seen from behind.

  Now, the inspection operation of the solar cell module 4 using such an inspection apparatus 2 will be described below. However, in the following, the inspection apparatus 2 will be described as including the auxiliary roller arm 27, the front / rear positioning mechanism 28, and the left / right positioning mechanism 29 described above.

FIG. 9 shows a configuration relating to a control system and a measurement system of the inspection apparatus 2.
As illustrated, the inspection device 2 includes a control device 237 and a measurement device 230.
The control device 237 performs various measurements of the control unit 2371, a measurement sequence control unit 2372 that controls a measurement sequence for the inspection of the solar cell module 4 under the control of the control unit 2371, and the solar cell module 4. A measurement processing unit 2373. However, as described above, the control device 237 is configured using a computer, and each unit of the control device 237 is realized by the computer executing a predetermined program.

The measuring device 230 is connected to a variable load 2301 that functions as a load of the solar cell module 4 connected to the connector 239, an ammeter 2302 that measures a current flowing through the solar cell module 4 connected to the connector 239, and the connector 239. A voltmeter 2303 for measuring the output voltage of the solar cell module 4, a resistance meter 2304 for measuring the resistance value of the solar cell module 4 connected to the connector 239, and a bias power source 2305 for applying a bias voltage to the solar cell module 4. I have. The variable load 2301, the ammeter 2302, the voltmeter 2303, the ohmmeter 2304, the bias power source 2305, and the solar cell module 4 are configured to be selectively turned on / off.
The ohmmeter 2304 may measure resistance using the functions of the ammeter 2302 and the voltmeter 2303.

When the control unit 2371 of the control device 237 is instructed to start an inspection by using the switch 231, the control unit 2371 instructs the measurement sequence control unit 2372 to start measurement.
The measurement sequence controller 2372 instructed to start measurement performs the solar cell module measurement process shown in FIG.

  As shown in the figure, in this process, first, the horizontal position of the solar cell module 4 that has been positioned in the front-rear direction using the front-rear positioning mechanism 28 on the roller base 222 is determined as the left-right positioning mechanism 29. The moving mechanism 292 is controlled and positioned at the center (step 1002).

Then, the air cylinder 223 is controlled to close the two illumination plates 221 horizontally (step 1004).
Next, the lighting drive unit 2211 is controlled to turn on all the LEDs of the lighting plate 221 (step 1006), and the resistance of the solar cell module 4 is turned on using the ohmmeter 2304 of the measuring device 230 in the measurement processing unit 2373. An operation of measuring as time resistance is performed (step 1008).

  Next, the measurement processing unit 2373 performs an operation of measuring the IV characteristic of the solar cell module 4 using the ammeter 2302 and the voltmeter 2303 while changing the load value (resistance value) of the variable load 2301 of the measuring device 230. (Step 1010). The measurement processing unit 2373 converts the IV characteristic represented by the measured values of the ammeter 2302 and the voltmeter 2303 to a predetermined standard temperature according to the temperature measured by the temperature sensor 224 and the illuminance detected by the illuminance sensor 226. Correction is made to represent the IV characteristics at the standard illuminance, and the IV characteristics of the solar cell module 4 are obtained.

  Then, the lighting drive unit 2211 is controlled to turn off all the LEDs of the lighting plate 221 (step 1012), and the resistance of the solar cell module 4 is turned off using the resistance meter 2304 of the measuring device 230 in the measurement processing unit 2373. The measurement operation is performed (step 1014).

  Next, while controlling the illumination drive unit 2211 and executing a partial light-shielding lighting sequence that sequentially turns off only some of the LEDs on the illumination plate 221, the measurement processing unit 2373 uses the ammeter 2302 of the measuring device 230 to perform solar An operation for measuring the current flowing through the battery module 4 is performed (step 1016).

  Here, as shown in FIG. 11a, the two illumination plates 221 each have an LED divided into a plurality of blocks, and the illumination driving unit 2211 can turn on / off the LED for each block. it can. In the partial light-shielding lighting sequence in step 1014, the partial light-shielding lighting sequence for sequentially turning off only some of the LEDs on the illumination plate 221 is executed using the lighting / extinguishing function for each block.

  Then, the illumination driving unit 2211 is controlled to turn off all the LEDs on the illumination plate 221 (step 1018), and the air cylinder 223 is controlled to open the two illumination plates 221 upward (step 1020). Further, with the bias voltage applied to the solar cell module 4 from the bias power source 2305, the thermal image camera 225 is focused on the upper surface of the solar cell module 4 with the vertical position of the thermal image camera 225 using the camera moving actuator 2251. Next, it adjusts according to the thickness of the solar cell module 4. Here, the thickness of the solar cell module 4 is registered in advance in accordance with the type of the solar cell module 4 indicated by the identification information of the solar cell module 4 to be inspected read by the barcode reader 234. Set the thickness. Then, while moving the thermal image camera 225 in the front-rear direction using the camera movement actuator 2251, the measurement processing unit 2373 is caused to perform an operation of sequentially photographing the solar cell modules 4 (step 1022).

Then, the air cylinder 223 is controlled to horizontally close the two illumination plates 221 (step 1024), and the solar cell module measurement process is ended.
When the solar cell module measurement process is completed, the control unit 2371 of the control device 237 evaluates the legitimacy of the solar cell module 4 from the measurement result of the measurement processing unit 2373, and displays the measurement result and the evaluation result as a barcode. The information is stored together with the identification information of the solar cell module 4 to be inspected that has been read by the reader 234, or is output from the display device or the printer 236.

  Now, as shown in FIG. 11b, the solar cell module 4 is connected in series by alternately connecting the front surface and the back surface arranged in n columns (2 columns in the figure) in the Y (vertical direction in the figure) direction. A plurality of (10 in the figure) solar cells 41 are arranged in a plurality (three in the figure) in the X direction (lateral direction in the figure) and the clusters are connected in series. Yes. Further, the solar cell module 4 includes a bypass diode 42 that bypasses both ends of a series connection circuit portion formed of one or a plurality of (one in the drawing) clusters. Moreover, in such a solar cell module 4, at the time of normality, as shown by a thick line in FIG.

And the control part 2371 of the control apparatus 237 performs the following evaluation as evaluation of such a solar cell module 4. FIG.
That is, the control unit 2371 of the control device 237 evaluates such disconnection / connection failure of the solar cell module 4 by comparing the lighting resistance with a predetermined normal resistance value range during lighting. When it is larger than this, it is evaluated by evaluating that a disconnection / connection failure has occurred in the solar cell module 4.

  In addition, the control unit 2371 of the control device 237 evaluates the failure of the bypass diode 42 of the solar cell module 4 at a predetermined level compared to the normal resistance value range at the time of extinction when the resistance at the time of extinction is set in advance. This is done by evaluating that the disconnection of the bypass diode 42 has occurred in the solar cell module 4 when the value is larger.

  In addition, the control unit 2371 of the control device 237 evaluates the solar battery cell 41 indicating that the thermal image captured by the thermal image camera 225 is not generating heat as a defective cell, or the thermal image is abnormally heated. Is evaluated as a defective wiring location.

  Moreover, the control part 2371 of the control apparatus 237 evaluates the defective part of the bypass diode 42 based on the electric current which flows through the solar cell module 4 measured while performing the partial light-shielding lighting sequence.

  That is, as shown in FIG. 11d, even when the bypass diode 42 indicated by x is disconnected, if all the solar cells 41 are irradiated with pseudo-sunlight, the solar cell module 4 is Current flows.

  Further, as shown in FIG. 11e, only one or more solar cells 41 in any cluster other than the cluster to which the disconnected bypass diode 42 is connected at both ends are not irradiated with pseudo-sunlight, and other solar cells. Even in the situation where the artificial sunlight is irradiated to the solar cell 41, the current is interrupted by the solar battery cell 41 not irradiated with the artificial solar light, but the solar cell 41 is not irradiated with the artificial solar light. A current flows through the battery module 4.

  However, as shown in FIG. 11 f, only one or more solar cells 41 in the cluster to which both ends of the disconnected bypass diode 42 are connected are not irradiated with the artificial sunlight, and the other solar cells 41 are not exposed to the artificial sunlight. In the irradiated state, the current path is cut off, and no current flows through the entire solar cell module 4.

  Therefore, in the partial light-shielding lighting sequence described above, only one or more solar cells 41 of the cluster of interest are not irradiated with pseudo sunlight while sequentially switching the cluster of interest, and other solar cells 41 are irradiated with pseudo sunlight. Control (control to turn off only the LED block in the position where one or more solar cells 41 of the cluster of interest are irradiated with pseudo-sunlight), and the control unit 2371 of the control device 237 controls the solar cell module 4 The bypass diode 42 connecting both ends of the cluster focused when no current flows is evaluated as a disconnected bypass diode 42. Further, it is evaluated that the bypass diode 42 connecting both ends of the cluster focused when the current flows through the solar cell module 4 is normal.

  The embodiment of the present invention has been described above.

  DESCRIPTION OF SYMBOLS 1 ... Automobile, 2 ... Inspection apparatus, 3 ... Installation stand, 4 ... Solar cell module, 11 ... Rail, 21 ... Caster, 22 ... Measuring part, 23 ... Operation panel, 26 ... Camera rail, 27 ... Auxiliary roller arm, 28 DESCRIPTION OF SYMBOLS: Front-rear positioning mechanism, 29 ... Left-right positioning mechanism, 41 ... Solar cell, 42 ... Bypass diode, 220 ... Frame, 221 ... Illuminating plate, 222 ... Roller base, 223 ... Air cylinder, 224 ... Temperature sensor, 225 ... Thermal image camera, 226 ... Illuminance sensor, 230 ... Measuring device, 231 ... Switch, 232 ... Keyboard, 233 ... Pointing device, 234 ... Bar code reader, 235 ... Monitor, 236 ... Printer, 237 ... Control device, 238 ... Fan, 239 ... Connector, 271 ... Arm, 272 ... Roller, 281 ... Bar, 282 ... Holder, 291 ... Position Plate, 292 ... Movement mechanism, 2211 ... Illumination drive unit, 2251 ... Camera movement actuator, 2301 ... Variable load, 2302 ... Ammeter, 2303 ... Voltmeter, 2304 ... Resistance meter, Bias power supply ... 2305, 2371 ... Control unit, 2372 ... measurement sequence control unit, 2373 ... measurement processing unit.

Claims (7)

A solar cell module inspection device installed in a luggage compartment of a van type automobile,
Up, down, front, back, left, and right directions of the automobile in a state where the solar cell module inspection device is installed in the luggage room, as up, down, front, back, left, and right directions of the solar cell module inspection device,
The solar cell module inspection apparatus is
A support base on which the solar cell module is placed;
Two illuminating plates that emit simulated sunlight;
Illumination plate opening and closing mechanism;
A thermal image camera that is disposed above the illumination plate and photographs the lower part;
The illumination plate opening / closing mechanism is configured such that the two illumination plates are arranged in a horizontal orientation in a horizontal posture above the support base, and the pseudo sunlight is directed downward. The sun is characterized in that it changes between a first state that irradiates and a second state in which each illumination plate rotates from the first state and exposes the lower side to the thermal imaging camera. Battery module inspection device. The solar cell module inspection apparatus according to claim 1,
In the first state, the two illuminating plates are arranged side by side in the left-right direction. In the first state, the left illuminating plate is pivotally supported at the left end so as to be rotatable about the front-rear axis. In the first state, the right illuminating plate is pivotally supported at the right end so as to be rotatable about the front-rear axis, and the illuminating plate opening / closing mechanism causes the two illuminating plates to rotate around their respective rotational axes. In addition, the two illumination plates are rotated so as to open upward in a double-spread shape, and the solar cell module inspection apparatus is in the second state. The solar cell module inspection apparatus according to claim 1 or 2,
A solar cell module inspection device comprising a camera moving mechanism for moving the thermal image camera in the front-rear direction. The solar cell module inspection device according to claim 1, 2, or 3,
From the back of the solar cell module inspection device, comprising an insertion port provided at the rear of the solar cell module inspection device for sending the solar cell module on the support base in a horizontal posture,
The solar cell module inspection apparatus, wherein the support base is a roller conveyor provided with a plurality of rollers that rotate about a horizontal axis. The solar cell module inspection apparatus according to claim 1, 2, 3 or 4,
The rear end is provided with an arm that can be pulled out rearward from the position accommodated in the solar cell module inspection device, and an auxiliary roller that rotates about a horizontal axis provided at the rear end of the arm as a rotation axis. An auxiliary roller arm, and the height of the upper end of the auxiliary roller is substantially equal to the height of the upper surface of the support base. The solar cell module inspection apparatus according to claim 1, 2, 3, 4 or 5,
A position that acts on the solar cell module placed on the support base and sets a position in at least one of the front-rear direction and the left-right direction of the solar cell module as a predetermined position on the support base A solar cell module inspection apparatus comprising a determination mechanism. The inspection apparatus according to claim 1, 2, 3, 4, 5 or 6,
A solar cell module inspection vehicle comprising a van-type vehicle having the inspection device mounted in a luggage compartment.