JP2014236185A - Apparatus and method for transferring solar battery cell - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus and method for transferring a solar battery cell, capable of improving measurement accuracy and reducing a cost due to reduction in measurement time.SOLUTION: An apparatus for transferring a solar battery cell 12 includes: a first index 21 for placing the solar battery cell 12 on each upper surface of a plurality of first index tables 23 and holding it; a second index 22 for allowing the solar battery cell 12 to be sucked onto each lower surface of a plurality of second index tables 26 and holding it; and a central processing control unit 50 for controlling the operation of each index. The first index table places the solar battery cell to a position 21b and holds it, and the first index table rotates from the position 21b to reach a position 21c, and the second index table receives the solar battery cell at a position 22a above the position 21c and sucks and holds it, and the second index table rotates from the position 22a to reach a position 22b for measurement, and the second index table rotates from the position 22b to reach a position 22c for delivering the solar battery cell to a subsequent step. The above-described operation is performed for each rotation angle in synchronization.

Description

  The present invention relates to a transfer device and transfer method for solar cells.

  In the manufacture of solar cells, it is important to evaluate the output characteristics whether or not the solar cells have a preset power generation capability. The output characteristics of the solar battery are measured by adjusting the load power source in a state in which the reference solar light is irradiated on the surface of the solar battery cell, and measuring each output current value and output voltage value at each load amount as measurement points. This measurement is performed using a probe brought into contact with the bus bar electrode portion corresponding to the collector electrode portion of the finger electrode disposed on the front and back surfaces of the solar battery cell. The measured values related to the collected current and voltage are plotted on a graph with the vertical axis representing current and the horizontal axis representing voltage, and the characteristic curve of the solar cell is obtained by interpolating between the plots. This obtained curve is generally called a current-voltage (IV) characteristic curve.

  There are various types of solar cells depending on the material and structure. The solar cells that are currently mainstream use silicon crystals. And in the solar cell currently produced and sold most, an n electrode is provided on the light receiving surface that receives sunlight, and a p electrode is provided on the back surface. However, in such a solar cell, since sunlight does not enter the substrate under the electrode on the light receiving surface, power is not generated in that portion. Therefore, as a high-efficiency solar cell that can capture 100% of sunlight, a back electrode type solar cell in which no electrode is present on the light receiving surface and a p-electrode and an n-electrode are formed on the back surface is manufactured. .

  However, such a back electrode type solar cell has a more complicated manufacturing process than a solar cell in which an electrode is also provided on the light receiving surface, increasing the manufacturing cost and reducing the mass productivity. Moreover, the process of evaluating the output characteristics of the current voltage of the solar battery cell described above is an important measurement item in the inspection after manufacturing. However, this inspection process is more complicated in the back electrode type solar cell, and is one of the additional factors that are expensive.

  In the inspection process, if the transfer of the solar cells is repeated many times, it is inefficient and the position accuracy is lowered, leading to a decrease in measurement accuracy. Also, if the transfer is repeated many times, it takes time to measure. As a result, the temperature of the solar cell itself is increased by the illumination irradiated in the inspection and the heat generated from the surrounding devices, the output voltage is decreased, and the measurement accuracy is further decreased. Therefore, cost reduction by simplifying the inspection process for output characteristics and shortening the inspection time is particularly important for low-cost and high-cost solar cells such as back electrode solar cells as well as improving measurement accuracy. It is.

  In view of the above circumstances, the present invention provides a solar cell transfer device and a transfer device capable of reducing costs by improving the measurement accuracy, simplifying the output characteristic inspection process, and reducing the time required for measurement and improving efficiency. The purpose is to provide a loading method.

The solar cell transfer device of the present invention is
A first solar cell mounting holder that holds and holds solar cells on the upper surface side of each of the plurality of first index tables provided to extend radially from the first rotation center. And the index of
A first drive mechanism for rotating the first index in a first direction;
A second index having a solar cell adsorption holding portion that adsorbs and holds solar cells on the lower surface side of each of the plurality of second index tables provided to extend radially from the second rotation center. When,
A second drive mechanism for rotating the second index in the first direction or the second direction;
Central processing control unit for controlling the operation of the solar cell placement holding unit, the operation of the solar cell adsorption holding unit, the operation of the first drive mechanism, and the operation of the second drive mechanism, respectively. When,
With
The central processing control unit
The operation of the solar cell placement and holding part of the first index table receiving and placing solar cells sequentially at the first rotation angle position, and
An operation in which the first index table sequentially rotates from the first rotation angle position to reach a second rotation angle position;
The first index at the second rotation angle position at the third rotation angle position where the solar cell suction holding portion of the second index table is sequentially positioned above the second rotation angle position. Receiving and adsorbing and holding solar cells from the table;
For the measurement of the current-voltage characteristics of the solar battery cell, the second index table sequentially rotates from the third rotation angle position to reach the fourth rotation angle position;
The second index table sequentially rotates from the fourth rotation angle position to reach the fifth rotation angle position in order to deliver the solar cell to the subsequent process;
Is controlled at every rotation angle synchronized between the first index and the second index.

Moreover, the transfer method of the photovoltaic cell of the present invention is
A first index having a solar cell placement holding unit for placing and holding solar cells on each upper surface side of a plurality of first index tables provided to extend radially A solar cell adsorption holding unit that adsorbs and holds the solar cells on the lower surface side of each of the plurality of second index tables that are rotated in the first direction by the drive mechanism and extend radially. The second drive mechanism has a second drive mechanism to rotate in the first direction or the second direction, the operation of the solar cell placement holding unit, the operation of the solar cell adsorption holding unit, A method of placing solar cells using a placement device comprising a central processing control unit that controls the operation of the first drive mechanism and the operation of the second drive mechanism, respectively.
Under the control of the central processing control unit,
The operation of the solar cell placement and holding part of the first index table receiving and placing solar cells sequentially at the first rotation angle position, and
An operation in which the first index table sequentially rotates from the first rotation angle position to reach a second rotation angle position;
The first index at the second rotation angle position at the third rotation angle position where the solar cell suction holding portion of the second index table is sequentially positioned above the second rotation angle position. Receiving and adsorbing and holding solar cells from the table;
For the measurement of the current-voltage characteristics of the solar battery cell, the second index table sequentially rotates from the third rotation angle position to reach the fourth rotation angle position;
The second index table sequentially rotates from the fourth rotation angle position to reach the fifth rotation angle position in order to deliver the solar cell to the subsequent process;
Is performed for each rotation angle synchronized between the first index and the second index.

  According to the photovoltaic cell transfer device and transfer method of the present invention, high positional accuracy can be obtained with a simple mechanism, the measurement accuracy can be improved, the output characteristic inspection process can be simplified, and the time required for measurement can be improved. Costs can be reduced by shortening and improving efficiency.

It is a top view which shows schematic structure of the whole current-voltage characteristic measuring apparatus of the photovoltaic cell containing the transfer apparatus of the photovoltaic cell by one embodiment of this invention. It is a longitudinal cross-sectional view which shows the structure of the principal part of the transfer device of the same photovoltaic cell. It is a top view which shows the state by which the photovoltaic cell was mounted in the IV measurement table by the transfer device of the photovoltaic cell.

  Hereinafter, a transfer device and a transfer method for solar cells according to embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a plan view showing a schematic configuration of a solar cell current-voltage characteristic measuring device 1 including a solar cell transfer device 20 according to an embodiment of the present invention.

  This solar cell current-voltage characteristic measuring device 1 performs the outer shape inspection of the solar battery cell 12, and then supplies the cell supply unit 10 that supplies a non-defective product to the subsequent stage and the current-voltage characteristics of the solar battery cell 12. An IV measuring unit 30 to measure, a transfer device 20 for transferring the solar cells 12 to put the solar cells 12 supplied from the cell supply unit 10 into the IV measuring unit 30, and an I- A cell sorting unit 40 for sorting the solar cells 12 based on the measurement result of the current-voltage characteristics measured by the V measuring unit 30, a cell supply unit 10, a transfer device 20, an IV measuring unit 30, and a cell sorting unit. A central processing control unit 50 for controlling each of the 40 operations.

  The cell supply unit 10 includes a conveyance path 11, a cell transfer robot 13, a cell inspection unit 14, and a rejection unit 15.

  The solar battery cell 12 manufactured separately in a process not shown is transported to a predetermined take-out position by the transport path 11. The solar battery cell 12 that has reached this take-out position is taken out by the cell transfer robot 13 and first placed on the cell inspection unit 14.

  The placed solar battery cell 12 is inspected for external state by the cell inspection unit 14. More specifically, light is irradiated from above the solar cell 12 by a light source (not shown), and the shape of the solar cell 12 is photographed by a camera. And it is determined whether it is a non-defective product based on the outer shape of the solar battery cell 12, the position of the bus bar, the presence / absence of abnormality in each dimension, the presence / absence of chipping, cracking, and the like.

  The solar battery cell 12 determined to be a non-defective product by the cell inspection unit 14 is moved to the transfer device 20 by the cell transfer robot 13. On the other hand, the solar battery cell 12 determined to be defective by the cell inspection unit 14 is sent by the cell transfer robot 13 to the reject unit 15 that accumulates defective products that are not used, and is removed.

  The transfer device 20 includes a first index 21, a second index 22, a drive mechanism that drives the first index 21 and the second index 22, as will be described later, and the temperature of the first index 21. And a temperature control mechanism for adjusting the temperature.

  As shown in FIG. 1, the first index 21 has a cross shape in which four first index tables 23 extend radially every 90 degrees from the rotation center C1 in the present embodiment. The solar cells 12 are placed on the first index table 23 by the cell transfer robot 13. On the upper surface side of the first index table 23, there are provided solar cell mounting holders each having a suction port 21a, and the solar cells 12 are sucked and mounted by a suction device (not shown). Is done. The first index 21 stops at a predetermined receiving position 21 b and receives the solar battery cell 12 from the cell transfer robot 13. It rotates 270 degrees in the direction of arrow R1, stops at a predetermined delivery position 21c, and delivers solar cells 12 to the second index 22.

  Similarly to the first index 21, the second index 22 has a cross shape in which four second index tables 26 extend radially every 90 degrees from the rotation center C2. Each second index table 26 stops at a predetermined receiving position 22a, and the solar cells 12 are sequentially transferred from the first index 21. On the lower surface side of the second index table 26, solar cell adsorption holding portions each having an adsorption pad 26b are provided, and the solar cells 12 are adsorbed and held by a suction device (not shown).

  The second index 22 is rotated 90 degrees from the receiving position 22a in the direction of the arrow R2 opposite to the first index 21, and stopped at the predetermined measurement position 22b by the IV measuring unit 30. Twelve current-voltage characteristics are measured.

  The IV measurement unit 30 includes an IV measurement table 31 and an IV measurement device (not shown). The IV measurement apparatus includes a load power source, a load control unit, an ammeter, a voltmeter, a light source, a light source control unit, and a measurement control unit that controls the entire measurement operation, which are not shown.

  The light source is disposed above the second index 22, and the second index 22 passes through the irradiation light so that the light irradiated from the light source can pass through the solar cell 12 adsorbed on the back surface side. A mouth 26a is formed.

  The load power source is connected to the solar cell 12 to be measured and applies a load to the solar cell 12. The load amount of the load power supply is adjusted by the load control unit, and a plurality of load amounts can be given to the solar battery cell 12. Thereby, the output current and output voltage according to each load amount of load power supply are produced | generated from the photovoltaic cell 12, and it measures with an ammeter and a voltmeter. The measurement control unit generates an IV characteristic curve of the solar battery cell 12 based on the measurement results of the ammeter and the voltmeter.

  After the current-voltage characteristic of the solar battery cell 12 is measured by the IV measuring unit 30, the second index table 26 is rotated 90 degrees from the measurement position 22b in the direction of the arrow R2 and stops at the carry-out position 22c.

  The cell sorting unit 40 includes a transport device 42 and a sorting device 43. The photovoltaic cells 12 are delivered from the second index table 26 at the carry-out position 22 c to the transport device 42 and transported to the sorting device 43. In the sorting device 43, classification is performed based on the measurement result in the IV measuring unit 30, and each is transported to the subsequent process.

  FIG. 2A shows a longitudinal cross-sectional structure along the AA line of the main part centering on the transfer device 20 having the first index 21 and the second index 22 shown in FIG. Further, FIG. 2B shows a longitudinal sectional structure taken along line BB of the main part.

  In the first index 21, four first index tables 23 extending radially from the rotation center C1 are rotated in units of 90 degrees by a step motor 24 corresponding to a drive mechanism, and a receiving position 21b and a delivery position 21c. To stop each.

  Similarly, in the second index 22, four second index tables 26 extending radially from the rotation center C2 are rotated in units of 90 degrees by a step motor 27 corresponding to the driving mechanism, and the receiving position 22a, the measurement is performed. It stops at the position 22b and the carry-out position 22c, respectively.

  Further, below the second index table 26 and the step motor 27, a vertical movement mechanism having a motor 28a, a belt 28b, and a screw-type rotary shaft 28c for vertical movement is provided as a further drive mechanism. When the motor 28a rotates in the forward or reverse direction, this rotation is transmitted by the belt 28b, and the vertical movement rotating shaft 28c is rotated to expand and contract vertically. As a result, the second index table 26 and the step motor 27 are raised or lowered.

  The first index 21 and the second index 22 rotate so as to synchronize with each other in units of 90 degrees. More specifically, as shown in FIG. 1, the first index 21 rotates in the opposite direction to each other as indicated by arrow R1 and the second index 22 as indicated by arrow R2. As shown in FIG. 1 and FIG. 2A, the second index 22 at the receiving position 22 a in the second index 22 is positioned above the first index table 23 at the delivery position 21 c in the first index 21. The index tables 26 are positioned so as to overlap in synchronization. At these positions 21c and 22a, the solar cell 12 held in the solar cell mounting holder of the first index table 23 is the suction pad that the solar cell suction holder of the second index table 26 has. It is adsorbed and held by 26b. In this way, the solar cells 12 are delivered from the first index 21 to the second index 22.

  Moreover, in the four first index tables 23 in the first index 21, mutually connected flow paths (not shown) are formed as temperature control mechanisms. One end of the flow path is connected to the temperature adjustment water inlet 25a, and the other end is connected to the temperature adjustment water outlet 25b.

  Water that is included in the temperature adjustment mechanism and that has been temperature adjusted to a predetermined temperature or less by a chiller corresponding to a fluid supply mechanism (not shown) flows from the temperature adjustment water inlet 25a into the flow path as indicated by the arrow 25a1, It flows out from the temperature adjustment water outlet 25b as shown by the arrow 25b1. Thereby, the temperature of the first index table 23 is adjusted to a predetermined temperature. As a result, the solar cell 12 received and held from the cell transfer robot 13 by the first index table 23 at the receiving position 21b of the first index 21 is held at the delivery position 21c rotated by 270 degrees. The temperature is adjusted to a predetermined temperature until the index 22 is delivered.

  As shown in FIG. 2B, the solar cell 12 sucked and held by the second index table 26 of the second index 22 is indicated by the arrow 28d by the motor 28a at the measurement position 22b. The second index 22 is lowered. And the photovoltaic cell 12 is pressed by the IV measurement table 31 in the IV measurement part 30, and is electrically connected. Light of reference illuminance is emitted from the pseudo-sunlight 32, passes through the irradiation light passage opening 26a in the second index table 26, and is irradiated to the solar battery cell 12, and current-voltage characteristics are measured. After the measurement is completed, the motor 28a rotates in the reverse direction, and the solar battery cell 12 rises together with the second index 22 as indicated by the arrow 28e.

  FIG. 3 shows a state where the solar battery cell 12 is placed on the upper surface of the IV measurement table 31. In the present embodiment, the IV measurement table 31 is provided with six IV measurement probes 33 for each column in three columns. Then, the IV measurement probe 33 is pressed against the bus bar 45 corresponding to the collector electrode portion provided on the back surface of the solar battery cell 12 by the compressive force of the spring 34.

  Next, the delivery operation of the photovoltaic cells 12 by the transfer device 20, particularly the delivery operation between the first index table 23 and the second index table 26 will be described in detail. Here, paying attention to one solar battery cell 12, an operation in which this solar battery cell 12 is delivered will be described.

  From the cell transfer robot 13, the solar battery cell 12 is received and sucked and placed on the solar battery cell holder on the upper surface of the first index table 23 at the receiving position 21 b at the first index 21. .

  The first index table 23 rotates stepwise in the direction of arrow R1 in units of 90 degrees. The first index table 23 stops at the delivery position 21c rotated 270 degrees from the receipt position 21b.

  On the other hand, the second index table 26 rotates stepwise in the direction of the arrow R2 in units of 90 degrees and in synchronization with the rotation of the first index table 23. The second index table 26 stops at the receiving position 22a.

  As a result, the first index table 23 at the delivery position 21c and the second index table 26 at the receipt position 22a overlap each other in the vertical direction.

  The second index table 26 descends, and the solar cell adsorption holding unit receives and holds the solar cells 12 placed on the solar cell placement holding unit of the first index table 23 by suction. The second index table 26 moves up and returns to the original rotatable position.

  The solar cell 12 sucked and held by the second index table 26 at the receiving position 22a rotates 90 degrees and stops at the measurement position 22b above the IV measurement table 31. Then, the second index table 26 is lowered. The IV measurement probe 33 is pressed into contact with a bus bar 45 provided on the back surface of the solar battery cell 12 by a spring 34.

  After the current-voltage characteristic of the solar battery cell 12 is measured by the IV measuring unit 30, the second index 22 rises with the solar battery cell 12 held by suction, and returns to the original rotatable position.

  The second index table 26 rotates 90 degrees from the measurement position 22b and stops at the carry-out position 22c. In the carry-out position 22 c, the second index table 26 is located above the transport device 42.

  The second index table 26 descends again at the carry-out position 22 c, the solar cells 12 are moved from the second index table 26 to the transport device 42, and transported to the sorting device 43.

  Thus, the operation of transferring the solar cells 12 from the cell transfer robot 13 at the receiving position 21b of the first index 21, and the receiving position 21c of the first index 21 and the receiving of the second index 22 are performed. The operation of transferring the solar cells 12 from the first index 21 to the second index 22 at the position 22a, and the photovoltaic cell 12 presses against the IV measurement table 31 at the measurement position 22b of the second index 22. The operation to be performed and the operation to transfer the solar cells 12 to the transfer device 42 at the carry-out position 22c of the second index 22 are performed in parallel with each other in synchronization with each other.

  In particular, the first index 21 and the second index 22 rotate synchronously to perform the delivery operation of the solar battery cell 12, thereby measuring the current-voltage characteristics with a simple structure efficiently and accurately. Can do. In other words, the solar battery cell 12 cannot be directly transferred from the transfer robot 13 to the solar battery cell adsorption holder provided on the lower surface side of the second index table 26. Therefore, instead of using a walking beam or the like between the transfer robot 13 and the second index 22, the first index 21 rotates in synchronization with the second index 22 and delivers the solar cells 12. By using this, it is possible to easily synchronize with each other with a simple mechanism and operation, and it is possible to easily realize transfer with high positional accuracy.

  Further, in the back electrode type solar cell, as described above, the back surface of the solar cell 12 is connected to the IV measurement probe 33 provided on the surface of the IV measurement table 31 in the IV measurement unit 30. It is necessary to press and electrically connect the bus bar 45 provided in the. At this time, according to the present embodiment, the pressure contact is easily realized by sucking and holding the solar cells 12 on the lower surface side of the second index table 26 and pressing them onto the IV measurement probe 33 from above. The As a result, it is not necessary to further control the pressing device for pressing the solar battery cell 12 onto the IV measurement probe 33 and the operation thereof, and the mechanism can be simplified and the time required for measurement can be shortened.

  Furthermore, by providing a temperature adjustment mechanism in the first index 21, it is possible to secure time for temperature adjustment to the solar battery cell 12 before inspecting the current-voltage characteristics, and to increase the temperature of the solar battery cell 12. It is possible to suppress and improve the measurement accuracy.

  Although the embodiment of the present invention has been described, this embodiment is presented as an example, and is not intended to limit the technical scope of the invention. The novel embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. The above-described embodiments and modifications thereof are included in the technical scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  For example, in the above embodiment, the first index table 23 and the second index table 26 are provided at four positions every 90 degrees. This is because the rotation of 90 degrees is taken as a unit to synchronize with each other so that the indexes can be easily and highly overlapped when the solar cells 12 are transferred from the first index table 23 to the second index table 26. This is due to the fact that it can be realized with accuracy. However, the shape is not necessarily limited to this. For example, two index tables may be provided every 180 degrees, three every 120 degrees, five every 72 degrees, or six every 60 degrees. However, considering that the temperature is adjusted in the first index 21, the one that has more first index tables 23 and can place many solar cells 12 passes to the second index 22. Thus, the temperature adjustment time can be increased to contribute to improvement in measurement accuracy.

  In the above embodiment, the temperature adjustment mechanism is provided only on the first index 21, and is not provided on the second index 22. As described above, the temperature adjustment mechanism is provided in order to prevent the temperature of the solar battery cell 12 from rising due to the illumination emitted from the light source in the cell inspection unit 14 and the heat generated from the surrounding devices. Since the first index 21 is closer to the cell inspection unit 14 than the second index 22, the temperature is likely to rise due to the influence of illumination from the light source. Further, in the first index 21, the temperature adjustment time can be increased while rotating 270 degrees in the direction of the arrow R1 from the receiving position 21b to the delivery position 21c. On the other hand, in the second index 22, the temperature adjustment time can be taken only during a 90-degree rotation from the delivery position 21c to the inspection position. Based on such a reason, the effect of adjusting the temperature of the solar battery cell 12 becomes greater when the temperature adjustment mechanism is provided in the first index 21. However, the temperature control mechanism may be provided not only in the first index 21 but also in the second index 22. In addition, a temperature adjustment mechanism may be provided only for the second index 22 in accordance with the situation such as heat generation from surrounding devices.

  In addition, when temperature-controlling the photovoltaic cell 12, it is necessary to cool with the refrigerant | coolants, such as water below the temperature which wants to hold | maintain the photovoltaic cell 12. FIG. For example, in the case where the solar battery cell 12 is held at 25 degrees Celsius, it is necessary to cool it with a refrigerant of 25 degrees Celsius or lower. Is desirable.

  Moreover, the transfer device of the solar cell of the present invention can be applied not only to the back electrode type solar cell but also to the front and back electrode type solar cells in which electrodes are formed on the front and back surfaces. .

DESCRIPTION OF SYMBOLS 1 Current voltage characteristic measuring apparatus 10 Cell supply part 11 Transport path 12 Solar cell 13 Cell transfer robot 14 Cell inspection part 15 Reject part 20 Transfer apparatus 21 First index 21a Suction port 21b, 22a Receiving position 21c Delivery position 22 Second index 22b Measurement position 22c Unloading position 23 First index table 24, 27 Step motor 25a Temperature adjustment water inlet 25b Temperature adjustment water outlet 26 Second index table 26a Irradiation light passage opening 26b Adsorption pad 28a Motor 28b Belt 28c Rotating shaft 30 for vertical movement IV measurement unit 31 IV measurement table 32 Pseudo sunlight 33 IV measurement probe 34 Spring 40 Cell sorting unit 42 Transport device 43 Sorting device 45 Bus bar 50 Central processing control unit

Claims (9)

A first solar cell mounting holder that holds and holds solar cells on the upper surface side of each of the plurality of first index tables provided to extend radially from the first rotation center. And the index of
A first drive mechanism for rotating the first index in a first direction;
A second index having a solar cell adsorption holding portion that adsorbs and holds solar cells on the lower surface side of each of the plurality of second index tables provided to extend radially from the second rotation center. When,
A second drive mechanism for rotating the second index in the first direction or the second direction;
Central processing control unit for controlling the operation of the solar cell placement holding unit, the operation of the solar cell adsorption holding unit, the operation of the first drive mechanism, and the operation of the second drive mechanism, respectively. When,
With
The central processing control unit
The operation of the solar cell placement and holding part of the first index table receiving and placing solar cells sequentially at the first rotation angle position, and
An operation in which the first index table sequentially rotates from the first rotation angle position to reach a second rotation angle position;
The first index at the second rotation angle position at the third rotation angle position where the solar cell suction holding portion of the second index table is sequentially positioned above the second rotation angle position. Receiving and adsorbing and holding solar cells from the table;
For the measurement of the current-voltage characteristics of the solar battery cell, the second index table sequentially rotates from the third rotation angle position to reach the fourth rotation angle position;
The second index table sequentially rotates from the fourth rotation angle position to reach the fifth rotation angle position in order to deliver the solar cell to the subsequent process;
Is carried out at every rotation angle synchronized between the first index and the second index.   The solar cell transfer device according to claim 1, further comprising a temperature control mechanism that adjusts the temperature of the solar cell mounting holder in the first index table to a predetermined temperature. The temperature control mechanism includes a flow path formed in the first index table;
A fluid supply mechanism for supplying a fluid having a temperature equal to or lower than the predetermined temperature into the flow path;
The solar cell transfer device according to claim 2, further comprising: Further comprising a vertical movement mechanism for moving the second index table up and down;
The central processing control unit
The second index table is lowered at the third rotation angle position, and the solar cell is received from the first index table at the second rotation angle position, is absorbed and held, and is raised.
The second index table is lowered for the measurement of the current-voltage characteristics of the solar cells at the fourth rotational angle position, and is then raised,
The second index table is lowered to deliver the solar cell to a subsequent process at the fifth rotation angle position, and the operation of the up-and-down moving mechanism is controlled to rise thereafter. The solar cell transfer device according to any one of claims 1 to 3. The central processing control unit
When the second index table is lowered at the fourth rotation angle position, the electrode of the solar cell that has been adsorbed and held is pressed by the measurement probe for the current-voltage characteristic of the solar cell and electrically The solar cell transfer device according to claim 4, wherein the operation of the vertical movement mechanism is controlled so as to be connected. Four first index tables are provided every 90 degrees radially from the first rotation center,
Four second index tables are provided every 90 degrees radially from the second rotation center,
When the first index table rotates 90 degrees or 270 degrees from the first rotation angle position in the first rotation direction, the second rotation angle position is reached,
When the second index table rotates 90 degrees from the third rotation angle position in the first rotation direction or the second rotation direction, it reaches the fourth rotation angle position, and the fourth rotation angle The solar cell transfer device according to any one of claims 1 to 5, wherein the device reaches the fifth rotation angle position when rotated 90 degrees from the position.   The outer shape is inspected by irradiating the solar cells with light in a step before the first index table sequentially receives the solar cells at the first rotation angle position. The transfer apparatus of the photovoltaic cell as described in any one of 1 thru | or 6. A first index having a solar cell placement holding unit for placing and holding solar cells on each upper surface side of a plurality of first index tables provided to extend radially A solar cell adsorption holding unit that adsorbs and holds the solar cells on the lower surface side of each of the plurality of second index tables that are rotated in the first direction by the drive mechanism and extend radially. The second drive mechanism has a second drive mechanism to rotate in the first direction or the second direction, the operation of the solar cell placement holding unit, the operation of the solar cell adsorption holding unit, A method of placing solar cells using a placement device comprising a central processing control unit that controls the operation of the first drive mechanism and the operation of the second drive mechanism, respectively.
Under the control of the central processing control unit,
The operation of the solar cell placement and holding part of the first index table receiving and placing solar cells sequentially at the first rotation angle position, and
An operation in which the first index table sequentially rotates from the first rotation angle position to reach a second rotation angle position;
The first index at the second rotation angle position at the third rotation angle position where the solar cell suction holding portion of the second index table is sequentially positioned above the second rotation angle position. Receiving and adsorbing and holding solar cells from the table;
For the measurement of the current-voltage characteristics of the solar battery cell, the second index table sequentially rotates from the third rotation angle position to reach the fourth rotation angle position;
The second index table sequentially rotates from the fourth rotation angle position to reach the fifth rotation angle position in order to deliver the solar cell to the subsequent process;
Is performed for each rotation angle synchronized between the first index and the second index.   The method for transferring a solar cell according to claim 1, further comprising adjusting the temperature of the solar cell mounting holder in the first index table to a predetermined temperature.

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