TWI449200B - Guidance device for solar silicon chip guide and its testing machine - Google Patents

Description

Guide device for guiding solar raft wafer and its detection machine

The present invention relates to a guiding device, and more particularly to a guiding device for a solar raft wafer inspection machine.

Solar energy is inexhaustible, inexhaustible, and environmentally friendly. Under the continuous improvement of the photoelectric conversion efficiency of solar panels, the demand for solar energy has grown rapidly. In today's optimistic clean energy, Become one of the indispensable energy sources. However, the main problems in the development of solar energy include cost, production yield and photoelectric conversion efficiency. Especially in the era of rapid increase in demand for solar equipment, how to reduce production costs and reduce the time of detection and screening classification is particularly important. In order to improve productivity and maintain competitive advantage, most of them use automated methods to manufacture and transport wafers, which not only saves personnel costs, but also improves production efficiency. In order to meet the needs of factory automation, transportation systems and transportation routes are very important. of.

At present, the main components of solar panels are solar tantalum wafers. Solar tantalum wafers are both light and thin. In the process of automated manufacturing and testing, if they are slightly inadvertent, they may cause damage, corners or cuts, resulting in a drop in yield. More troublesome is that once the micro cracks that are invisible to the naked eye are generated, although the width of the microcracks is very small, since the microcracks block the transfer of photoelectrons inside the solar crucible wafer, the electric energy generated by the solar crucible wafer is significantly reduced. Transmission efficiency, especially after installation and use for a period of time, due to the irradiation of sunlight and temperature changes, microcracks may continue to expand due to thermal stress, and the impact on output power will also increase.

It is known that the microcracking problem of the solar tantalum wafer will become a problem in the industry. The conventional technology shown in FIG. 4 discloses a guiding device for a solar crucible wafer, which comprises two sets of jigs 91 arranged in parallel, and a jig. The inner edge of 91 can contact the solar buffer wafer 6 on the conveyor belt in the direction of the arrow with the cushioning material 92 to return it to the correct position, but this action cannot be operated in the solar crucible chip 6, and the solar crucible must be forced. The wafer 6 is paused at the position of the corresponding guiding device 9, and is pushed by the guiding device 9 to continue the advancement. Especially in the conveying process, it is not necessary to provide only a single group of guiding devices 9, and every time the guiding time needs to be paused, the transmission process of the automatic testing machine is undoubtedly slowed down, so that the detection rate of the testing machine is lowered; further, due to both sides When the jig 91 is pushed, if the solar ray wafer to be transported is slightly skewed, it may be broken due to the push collision, which increases the cost and reduces the output efficiency.

In addition, once the solar raft wafer is fragmented, some fragments may be poked into the jig 91 in the reverse direction, so that the frequency of maintenance and repair of the shutdown is unnecessarily increased, and additional downtime and labor cost are added, and the detection efficiency is lowered. Therefore, how to ensure that the solar raft wafer under test can be kept in the proper position on the inspection machine during the transportation process, so that in all automated inspection processes, the correct detection value can be smoothly obtained, avoiding unnecessary misjudgment, scratching, or even fragmentation. As well as downtime maintenance, it is the focus of the present invention.

It is an object of the present invention to provide a guiding device for guiding a solar crucible wafer to ensure that the solar crucible wafer under test does not deviate from a predetermined position during transport.

Another object of the present invention is to provide a guiding device for guiding a solar crucible wafer, which fully activates the conveying unit and the guiding unit to reduce the probability of damage caused by the damaged solar crucible wafer during the guiding process.

Still another object of the present invention is to provide a solar raft wafer inspection machine having the above-mentioned guiding device, which can reduce the damage of the solar ray wafer under test during the guiding process by synchronously actuating the conveying unit and the guiding unit. The risk of the unit is to reduce the frequency of downtime maintenance.

Another object of the present invention is to provide a solar tantalum wafer inspection machine having the above-described guiding device, which increases the detection efficiency and, in turn, effectively improves the output efficiency.

The invention provides a guiding device for a solar raft wafer detecting machine for guiding a solar raft wafer to be tested, the guiding device mainly comprises a conveying unit, a guiding unit and a synchronous actuating unit; wherein the conveying unit is used for carrying And transmitting the solar raft wafer along a transport direction, and the guiding unit guides the solar raft wafer and mirrors each other with respect to the transport unit, and the synchronous actuating unit includes a rotating power source and transmits the rotating power source. The linkage causes the above-mentioned guiding unit to have an effective rate in the transport direction equal to the transport unit in the transport direction rate.

The present invention further provides a solar raft wafer inspection machine having the above-mentioned guiding device, the solar raft wafer detecting machine table comprising a pedestal, a guiding device disposed on the pedestal, a detecting device corresponding to the conveying unit, and a receiving detecting device A processing device for inspecting data, and a sorting device for accepting the instructions of the processing device and classifying the solar wafer.

According to the technical features of the present invention, the risk of damaging the edge of the solar raft wafer can be greatly reduced by carrying and guiding the solar raft wafer to be tested through the guiding device, and correctly transmitted to the predetermined measured position; thus, It can effectively overcome common problems and provide better test efficiency and better output yield.

The foregoing and other objects, features, and advantages of the invention are set forth in the <RTIgt;

1 and 2 are a perspective view and a side view of a first preferred embodiment of the guiding device of the present invention. The guiding device 1 is disposed on the solar raft wafer detecting machine as in the prior art. The aforementioned guiding device 1 mainly comprises a conveying unit 11, a guiding unit 12 and a synchronous actuating unit 13. The transport unit 11 is mainly used for carrying and transmitting the solar raft wafer 6, and in the present embodiment, is illustrated as including two sets of pulleys 111 and two of the two sets of pulleys 111 respectively for transporting the solar raft wafer 6 The conveyor belt 112; the solar crucible wafer 6 transported by the transport unit 11 is also oriented by the guiding unit 12; in view of the symmetrical structure of the solar crucible wafer 6, the guiding unit 12 is also mirror-symmetrically disposed on the transport unit Both sides of the 11 maintain their direction of travel symmetrically.

The two sets of guiding units 12 respectively include a guide wheel 121, at least one driven wheel 122, and a traction belt 123 driven by the guide wheel 121 to surround the driven wheel 122. The guide wheel 121 is responsible for receiving the power transmission in the upstream direction and is first actuated, and then connected to the driven wheel 122 by the traction belt 123 surrounding the guide wheel 123. As can be easily understood by those skilled in the art, if the machine itself includes a plurality of units, such as multiple sets of detection and classification units, the measured solar raft wafers are correctly aligned at each level, and can also be transported. A plurality of pairs of guiding units 12 are disposed on both sides of the belt 112 to ensure that the solar raft wafers are correctly positioned, detected and captured at all stages of the machine.

For the sake of explanation, when the contact guiding unit 12 is started to guide the solar raft wafer 6, the position of the solar raft wafer 6 on the conveyor belt 112 is a positive position. That is, when the solar crucible wafer 6 is transported by the transport unit 11 to the guiding position, the traction belt 123 will contact the solar crucible wafer 6, starting to guide the positional offset and skewed solar crucible wafer 6, and the traction belt 123 is exposed to The outer portion, between the guide wheel 121 and the driven wheel 122, the portion for contacting the solar raft wafer 6 is herein defined as the active surface 1231, and is broken to avoid undue collision or squeezing when the solar raft wafer 6 is guided. The acting surface 1231 of the belt 123 and the conveying direction of the conveyor belt 112 have an acute angle as shown.

That is, in this example, the relative distance between the guide wheels 121 of the two sets of guiding units 12 is greater than the width of the solar raft wafer 6 to be tested, even if the solar raft wafer 6 is slightly deflected by the conveyor belt 112, It can still be accommodated by the opening between the two guide wheels 121; when the solar raft wafer 6 to be tested is transported to the guiding position, the active surface 1231 of the traction belt 123 of at least one of the two side guiding units 12 will be touched. Since the distance between the driven wheels 122 of the two sets of guiding units 12 in this example, the distance substantially corresponds to the width of the solar raft wafer 6, and less than the distance between the two guide wheels 121, thereby correspondingly forming a tapered guide. The space is such that the solar raft wafer 6 is gradually sandwiched by the two active surfaces 1231 of the two guiding units 12 during the transmission and guiding, and the position tends to be ideal. In this way, it is ensured that the solar crucible wafer 6 enters the next stage of the process in the correct position.

It is worth mentioning that the main technical feature of the present invention is to provide a set of synchronous actuating units 13 in the guiding device 1 such that the guiding unit 12 has an effective rate in its transmission direction equal to the conveying unit 11 in its transmission direction. rate. In contrast, due to the aforementioned prior art, the conveyor belt needs to be suspended, the solar raft wafer waiting fixture is clamped, and after the alignment, the conveyor belt is opened again, on the one hand, there is no need to delay the conveying process, and on the other hand, in the conveying When the belt is restarted, it is still possible to cause the transmitted solar raft wafer to be deflected again. Especially for the sputum wafers with a slightly skewed condition, damage will occur at the moment of impact.

Furthermore, the present invention has a set of synchronous actuating units 13 including a rotary power source 131, a link 132 actuated by a rotary power source 131, and a drive assembly 133 that is driven by the link 132 to the other side guide unit 12. For convenience of explanation, the linkage 132 is defined in this example to include a first traction wheel 1321, a second traction wheel 1322, a third traction wheel 1323, a steering traction wheel 1324, and at least one transmission belt 1325 connecting the traction wheels. .

First, the first traction wheel 1321 is pivotally disposed on one side of the conveying unit 11 with a pivot (not labeled), and its rotation direction is equivalent to the conveying direction; when the rotating power source 131 of the synchronous actuation unit 13 is activated, the rotational power is The source 131 will drive the first traction sheave 1321, and the pivoting of the hub will cause the pulley 111 of the transport unit 11 to be driven, thereby driving the conveyor belt 112 to carry and transport the solar crucible wafer 6 in the transport direction. At the same time, the first traction wheel 1321 is coupled to the second traction wheel 1322 by the transmission belt 1325 so as to rotate accordingly, and thus has a relative stereoscopic relationship with the first traction wheel 1321 at an angle of 90 degrees; and then driven by the second traction wheel 1322 The same side guide wheel 121 rotates in parallel.

Then, the third traction wheel 1323 and the steering traction wheel 1324 are disposed. The steering traction wheel 1324 is interposed between the second traction wheel 1322 and the third traction wheel 1323. Therefore, the transmission belt 1325 is first connected to the steering traction wheel 1324 and then connected to the first The three traction wheels 1323, as the name implies, can rotate the second traction wheel 1322 and the third traction wheel 1323 in opposite directions through the steering traction wheel 1324. As shown in the figure, the former rotates clockwise, and the latter rotates counterclockwise. Also. That is, the first traction wheel 1321 and the steering traction wheel 1324 are parallel to each other and rotate in the opposite direction, so that the second traction wheel 1322 and the third traction wheel 1323 are respectively perpendicular to the first traction wheel 1321 or the steering traction wheel. The 1324 axial pivots rotate in opposite directions.

Since the first traction wheel 1321, the second traction wheel 1322, the third traction wheel 1323 and the steering traction wheel 1324 in this example are all located on one side of the conveyor belt 112, the driving unit 11 and the guiding unit on the same side are synchronously driven. Therefore, the synchronous actuating unit 13 further includes a transmission assembly 133 coupled to the third traction sheave 1323 via a pivot, and is driven by another belt to the guiding unit 12 on the other side of the conveyor belt 112. The guiding unit 12 on the side will rotate in the same direction and synchronously with the third traction wheel 1323. All the above-mentioned linkage relationship will cause the guiding units 12 on both sides of the conveyor belt 112 to serve as the traction belt 123 at the acting surface 1231, etc. The guide is rotated in the conveying direction in a speed and in a reverse symmetry.

Further, considering that the conveyor belt 112 has an angle with the acting surface 1231 of the traction belt 123, the traction belt 123 will be given a rotational speed slightly larger than the conveyor belt 112 in this example, so that the moving speed of the traction belt 123 is distinguished. When parallel to the conveyor belt 112 and perpendicular to the two components of the conveyor belt 112, the moving speed component parallel to the conveyor belt 112 will be equal to the speed of the conveyor belt 112. Thereby, when the solar raft wafer 6 conveyed by the conveyor belt 112 contacts the traction belt 123, the traction belt 123 will have an equivalent moving speed equivalent to the conveyor belt 112 in the conveying direction, and no speed between the solar ray wafer 6 being conveyed. Poor, thus minimizing the chance of pushing or pressing a fragment.

Of course, the transmission assembly 133 does not necessarily have a revolving wheel under the third traction sheave 1323 as shown in the figure. It is also conceivable to directly actuate the guiding unit 12 on the other side by the transmission belt 1325, or other similar changes. . In addition, the configuration of each traction wheel is substantially the same as that of the first traction wheel 1321 except for the location and the object to be applied, and will not be described herein. The advantage of the present invention is that the rotary power source 131 can be redirected to the other ones. Any one of the traction wheels to actuate all other traction wheel rotations can result in the same effect.

All in all, all the runners (including the pulley 111, the guide wheel 121, the driven wheel 122, the traction wheel) are the original power source by the rotary power source 131, and the other runners are driven one by one by the aforementioned linkage mode. Then, the conveying unit 11 is synchronized with the guiding unit 12 and operated in the same direction in the conveying direction.

Referring to FIG. 3, the solar cell wafer inspection machine to which the present invention is applied further includes a base 2, a guiding device 1 disposed on the base 2, a detecting device 3 corresponding to the conveying unit of the guiding device 1, and receiving detection. The processing device 4 that transmits the inspection data from the device 3 and the classification device 5 that receives the instructions of the processing device 4 and classifies the solar raft wafer. The solar raft wafer is carried by the guiding method and transmitted to the corresponding predetermined measured position for detection, and the surface image and the color image of the solar raft wafer are respectively taken out by the detecting device 3, and the obtained data is output. The processing device 4 is further determined by the processing device 4, and the classification device 5 instructed by the processing device 4 sorts the solar wafers. In addition, the synchronous actuating unit of the guiding device 1 is driven by the command of the processing device 4.

In summary, when the solar raft wafer guiding device of the present invention and the detecting machine having the solar raft wafer guiding device are compared with the prior art, the linkage between the guiding unit and the conveying unit can further reduce the measured The probability of damage to the solar raft wafer during the inspection process increases the yield yield of each detection device during measurement, avoids unnecessary damage during the automatic inspection process, and the cost is similar to the conventional structure but the function is better. For the best solution.

The present invention has been disclosed in the above embodiments, and is not intended to limit the present invention. Any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

1, 9. . . Guide device

2. . . Pedestal

3. . . Testing device

4. . . Processing device

5. . . Sorting device

6. . . Solar germanium wafer

11. . . Conveyor unit

111. . . Pulley

112. . . conveyor

12. . . Guidance unit

121. . . Guide wheel

122. . . driven wheel

123. . . Traction belt

1231. . . Action surface

13. . . Synchronous actuation unit

131. . . Rotating power source

132. . . Linkage

1321. . . First traction wheel

1322. . . Second traction wheel

1323. . . Third traction wheel

1324. . . Steering wheel

1325. . . Transmission belt

133. . . Transmission component

91. . . Fixture

92. . . Cushioning material

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a first preferred embodiment of a solar crucible wafer guiding device of the present invention.

2 is a side elevational view of the first preferred embodiment of the solar raft wafer guiding device of FIG. 1.

Fig. 3 is a perspective view of the detecting machine for the solar raft wafer guiding device of the present invention.

Figure 4 is a schematic illustration of a conventional guiding device.

1. . . Guide device

6. . . Solar germanium wafer

11. . . Conveyor unit

111. . . Pulley

112. . . conveyor

12. . . Guidance unit

121. . . Guide wheel

122. . . driven wheel

123. . . Traction belt

1231. . . Action surface

13. . . Synchronous actuation unit

131. . . Rotating power source

132. . . Linkage

1321. . . First traction wheel

1322. . . Second traction wheel

1323. . . Third traction wheel

1324. . . Steering wheel

1325. . . Transmission belt

133. . . Transmission component

Claims (10)

A guiding device for a solar raft wafer inspection machine for guiding a solar raft wafer to be tested, the guiding device comprising: a conveying unit for carrying and transmitting the solar raft wafer along a conveying direction; at least one pair a guiding unit for guiding the solar raft wafer on the conveying unit, and the guiding unit is respectively disposed on both sides of the conveying unit with respect to the conveying unit in mirror symmetry; and a group is such that the guiding unit is The transmission direction effective rate is equivalent to the synchronous actuation unit of the transport unit at the transmission direction rate, and the synchronous actuation unit includes a rotational power source and a linkage for transmitting the rotation of the rotational power source. The guiding device of claim 1, wherein the conveying unit comprises two sets of pulleys, and two conveying belts respectively driven by the two sets of pulleys for conveying the solar raft wafer. The guiding device of claim 2, wherein the guiding unit comprises: a guiding wheel; at least one driven wheel; and a traction belt driven by the guiding wheel to surround the driven wheel, wherein the traction belt The belt has an active surface corresponding to one of the conveyor belts, and the active surface is at an acute angle to the conveying direction. The guiding device of claim 3, wherein the linking member comprises: a set of first traction wheels driving the set of pulleys; and two sets of second and third traction wheels respectively driving the two guide wheels; a steering traction wheel interposed between the second and third traction wheels; and at least one transmission belt connecting the traction wheels; wherein the first and the steering traction wheels rotate in opposite directions to each other, and the second and third traction wheels respectively Rotating in opposite directions with each other along a pivot axis perpendicular to the axial direction of the first traction sheave; and one of the traction wheels is rotated by the rotational power source. The guiding device of claim 4, wherein the second and third traction wheels are located on one side of the conveyor belt, and one of the guiding units is for driving the guiding unit located on the same side of the conveyor belt; The synchronous actuating unit further includes a transmission assembly that is driven by the other of the second and third traction wheels and that is coupled to the other side of the conveyor belt. A solar raft wafer inspection machine includes: a susceptor; a guiding device disposed on the pedestal, comprising: a conveying unit for carrying and transporting the solar raft wafer in a conveying direction; at least one pair of guiding a guiding unit of the solar raft wafer on the transport unit, and the guiding unit is disposed on both sides of the transport unit in mirror symmetry with respect to the transport unit; and a set such that the guiding unit is in the transmission The direction effective rate is equivalent to the synchronous actuating unit of the transport unit at the transmission direction rate, the synchronous actuating unit comprises a single rotating power source, and a linking member for transmitting the rotation of the rotating power source; and a detecting device corresponding to the conveying unit a processing device that receives the inspection data transmitted by the detecting device; and a sorting device that receives the command from the processing device and classifies the solar wafer. The solar tantalum wafer inspection machine of claim 6, wherein the synchronous actuation guide unit is driven by the processing device command. The solar raft wafer inspection machine of claim 6, wherein the conveying unit comprises two sets of pulleys, and two conveyor belts respectively driven by the two sets of pulleys for conveying the solar raft wafer; The guiding units respectively include: a guide wheel; at least one driven wheel; and a traction belt driven by the guide wheel to surround the driven wheel, wherein the traction belt has an active surface corresponding to one of the conveyor belts, and the traction belt has The active surface is at an acute angle to the above conveying direction. The solar raft wafer inspection machine of claim 8, wherein the linkage comprises: a set of first traction wheels driving the set of pulleys; and two sets of second and third driving the two guide wheels respectively a traction sheave; a steering traction wheel interposed between the second and third traction wheels; and at least one transmission belt connecting the traction wheels; wherein the first and the steering traction wheels rotate in opposite directions, second and third The traction wheels are respectively rotated in opposite directions along a pivot axis perpendicular to the axial direction of the first traction wheel; and one of the traction wheels is rotated by the rotational power source. The solar tantalum wafer inspection machine of claim 9, wherein the second and third traction wheels are located on one side of the conveyor belt, and one of the guides is for driving the same guide on the same side of the conveyor belt. The synchronous actuation unit further includes a transmission assembly that is driven by the other of the second and third traction wheels and that is coupled to the other side of the conveyor belt.