TWI606687B - Concentrator photovoltaic module and the alignment device and method thereof - Google Patents

Description

Concentrating solar module and its alignment device and alignment method

The invention relates to a concentrating solar module, a aligning device and a aligning method thereof, in particular to a aligning device and a method for assembling a concentrating solar module by using a tilting light source.

The issues related to renewable energy development have received global attention. Among them, the solar energy industry has developed rapidly. On the one hand, it focuses on reducing the cost of manufacturing solar cells, while on the other hand, it is committed to optimizing the utilization of solar energy sources and solar cell conversion efficiency to promote the popularity of the solar energy industry. Chemical.

Solar cells can be divided into twin solar cells, compound solar cells and organic solar cells, while compound solar cells have the highest conversion efficiency of III-V solar cells, including gallium arsenide (GaAs) and indium gallium arsenide ( III-V compounds such as InGaAs) and InGaP, have successfully stacked III-V compounds of different materials into multi-junction solar cells, expanding the wavelength range that can absorb sunlight, and crystallizing the sun. In comparison to batteries, solar energy conversion efficiency is greatly improved.

Due to the small size and high conversion efficiency of the III-V solar cells, they are assembled into a Concentrator Photovoltaic module with a condenser lens, and the solar light is concentrated by a condenser lens to a small area of solar cells. Power generation is performed to improve the power generation efficiency of the battery. The concentrating solar module is mainly composed of a concentrating lens, a solar cell, a circuit board and a module frame. The solar cell and the circuit board are combined as a receiver, and generally adopt a Freundian concentrating magnification of one thousand times. The lens, which is used in combination with the solar cell area, requires only one thousandth of the flat-type crystal solar cell. However, since the focus of the condenser lens must fall on the solar cell, it can be aggregated. The light-emitting solar module uses a concentrating function, so it must be paired with a Sun Tracker to position the module toward the sun.

In addition, the concentrating solar module must be matched with precision optical alignment during the assembly process to ensure that the sunlight is focused on the solar cell to ensure power generation efficiency. In view of the fact that the light is deflected when passing through the collecting lens, the conventional technique provides an optical ineffective area on the collecting lens, which means that a region having no collecting lens is reserved, and the light does not pass through the optical ineffective area. A deflection is generated and vertically irradiated on the circuit board, and the optical alignment of the module is completed by aligning the laser spot with the optical alignment plate, which can effectively perform optical alignment, and also represents the optical The incident sunlight in the ineffective area cannot be deflected to the solar cell for power generation, resulting in wasted solar energy.

In order to expand the area of sunlight received by the concentrating solar module, effectively utilize the solar energy source and improve the output power efficiency of the solar module, it is necessary to establish a new optical alignment method and device to replace the optical ineffective area.

The main purpose of the present invention is to provide a concentrating solar module alignment device, which is disposed on a top surface of a laser light source at an oblique angle, and when the concentrating solar module is assembled by the device, An optically ineffective zone must be provided to avoid wasting incident sunlight.

Another object of the present invention is to provide a concentrating solar module alignment method using a laser light source having a tilt angle, respectively irradiating a circuit board and a concentrating lens, by observing the ray The spot of the light source is correctly placed at a first optical pair and a second optical pair to perform alignment of the circuit board and the concentrating lens.

Another object of the present invention is to provide a method for aligning a concentrating solar module, which uses a laser light source having a tilt angle to respectively illuminate a circuit board and condense light The mirror receives a signal by using a first laser light receiver and a second laser light receiver to perform alignment of the circuit board and the collecting lens.

A further object of the present invention is to provide a concentrating solar module, wherein the length of a concentrating lens is the same as the length of the top of a solar cell module frame, so that the light incident on the concentrating solar module is The concentrating lens can be concentrated on the solar cell to increase the solar light utilization rate.

In order to achieve the above object, the present invention discloses a aligning device for a concentrating solar module, which comprises a pedestal, a supporting member and a laser light source, wherein the supporting member is disposed on the pedestal And forming an accommodating space in the support member, and the laser light source is disposed on a top surface of the support member at an oblique angle.

The aligning method of the concentrating solar module performed by the above-mentioned aligning device includes the steps of: providing a solar cell module frame in the accommodating space of the aligning device; and setting a circuit board thereon a bottom of the solar cell module frame; a laser light source is disposed on the alignment device, and has an oblique angle, and the laser light source is used to illuminate the circuit board, and then the circuit board position is adjusted to enable the laser light source a light spot falls on the first optical pairing point; a collecting lens is disposed on the top of the module frame; and the laser light source is used to illuminate the collecting lens, and the position of the collecting lens is adjusted to make the tilt The spot of the laser source falls on the second optical pair; that is, the concentrating solar module is assembled.

The first laser light receiver and the second laser light receiver are further disposed on the circuit board, so that the light spot of the laser light source falls on the first laser light receiver and the second laser light, respectively. The concentrating solar module is assembled by confirming the receiving signal on the receiver.

In an embodiment of the invention, it is also disclosed that the tilt angle is calculated according to the curvature and optical theory of the collecting lens.

In an embodiment of the present invention, before the step of disposing the solar cell module frame, the first alignment coordinate and the second operation are calculated according to the curvature of the collecting lens and the position of the solar cell. The first coordinate pair and the second optical pair point are respectively disposed according to the first coordinate and the second alignment coordinate.

In an embodiment of the present invention, the first laser light receiver and the second The laser receiver is on the circuit board.

In an embodiment of the invention, the concentrating lens is also used as a plano-convex lens, a lenticular lens, a parabolic mirror or a Fresnel lens.

In an embodiment of the invention, it is also disclosed that the length of the concentrating area of the concentrating lens is the same as the length of the top of the solar module frame.

S10~S20‧‧‧Steps

10‧‧‧ alignment device

100‧‧‧Base

110‧‧‧Support

112‧‧‧ top surface

120‧‧‧ accommodating space

130‧‧‧Laser light source

132‧‧‧ tilt angle

20‧‧‧Solar battery module frame

200‧‧‧ boards

202‧‧‧First optical counterpoint

2022‧‧‧First laser light receiver

204‧‧‧Second optical optic point

2042‧‧‧Second laser light receiver

210‧‧‧ top

220‧‧‧ Concentrating lens

230‧‧‧Solar Receiver

30‧‧‧ alignment device

300‧‧‧Base

310‧‧‧Support

312‧‧‧ top surface

320‧‧‧ accommodating space

330‧‧‧First laser source

332‧‧‧second laser source

334‧‧‧ tilt angle

40‧‧‧Modular Framework

400‧‧‧ circuit board

402‧‧‧First optical counterpoint

404‧‧‧First optical counterpoint

406‧‧‧Second optical optic point

408‧‧‧Second optical optic point

410‧‧‧ top

420‧‧‧Array concentrating lens

430‧‧‧Solar Receiver

1 is a schematic diagram of a flow of the present invention; a second diagram: a schematic diagram of a device according to a first embodiment of the present invention; a third diagram: a schematic diagram of a second embodiment of the present invention; and a fourth diagram: A schematic view of a device of a third embodiment of the present invention.

In order to enable the reviewing committee to have a better understanding and understanding of the features and functions of the present invention, the preferred embodiment and the detailed description will be followed by a description of the following: concentrating solar modules are collected by light. Lens and III-V solar cells are combined, commonly used for Fresnel lens with gallium arsenide (GaAs); the role of concentrating solar modules The solar light is concentrated on a small area III-V solar cell through a concentrating lens, thereby improving the utilization of the solar energy source. Since the III-V solar cell used is smaller than the twin crystal solar cell, Reduce manufacturing costs.

In the concentrating solar module structure, a solar cell and a circuit board form a solar receiver. Due to the energy source of the concentrating solar module, the concentrating lens is required to accurately focus the sunlight on the solar receiver. Therefore, in the assembly process, the relative position of the concentrating lens and the solar receiver needs to be adjusted through a precise optical alignment system.

The conventional optical alignment method and device are provided on the solar module concentrating lens to reserve a region having no optical curvature, and the region vertically corresponds to the optical aligning point, so that the sunlight passes through the region to the optical aligning point. On the top, the optical alignment is completed; since the region has no optical curvature, the light incident from the region to the solar module cannot be deflected to the solar receiver, so the region is called an optical ineffective region.

The present embodiment provides a aligning device for a concentrating solar module and a method thereof, which need to provide the optical ineffective region to solve the conventional waste of sunlight caused by the optical ineffective region, thereby improving the efficiency of use of the solar energy source.

Please refer to the first figure, which is a schematic flowchart of the present invention. The concentrating solar module aligning method of the present invention comprises the following steps: Step S10: arranging a solar cell module frame to be accommodated in one of the pair of bit devices Step S12: setting a circuit board at the bottom of the solar cell module frame; step S14: disposing a laser light source on the alignment device, and illuminating the circuit board with an oblique angle, and then adjusting the Positioning the board, observing and confirming that the spot of the laser source falls on a first optical pair position; step S16: providing a collecting lens on top of one of the solar cell module frames; Step S18: illuminating the concentrating lens with the laser light source, adjusting the position of the condensing lens, observing and confirming that the spot of the oblique laser source falls on a second optical pair position; and step S20: completing The concentrating solar module is assembled.

Please refer to the second figure, which is a schematic diagram of a device according to a first embodiment of the present invention. As shown, the pair of position devices 10 includes a base 100, a support member 110, a top surface 112, and a laser light source 130. The arranging member 110 is disposed on the pedestal 100, and an accommodating space 120 is formed in the supporting member 110. The laser light source 130 is disposed at the slanting angle 132 at the supporting member. A top surface 112.

In the process of assembling a concentrating solar module, a solar cell module frame 20, a circuit board 200 and a concentrating lens 220 are respectively disposed in the accommodating space 120, wherein the circuit board 200 further includes A first optical pair 202, a second optical pair 204, and a solar receiver 230.

Please refer to the first figure and the second figure. In the process of assembling the concentrating solar module, the aligning method of the concentrating solar module of the present invention is assembled, and the steps include the following steps: Step S10: setting The solar cell module frame 20 is disposed in the accommodating space 120 of the aligning device 10; step S12: disposing the circuit board 200 at the bottom of the solar cell module frame 20; step S14: on the aligning device 10 A laser light source 130 is disposed and has an oblique angle 132 to illuminate the circuit board 200, and then the position of the circuit board 200 is adjusted to observe and confirm that the spot of the laser light source 130 falls on the first optical pair 202. The inclination angle 132 of the laser light source 130 is determined according to the optical theory and the curvature of the condensing lens 220, and is determined by the deflection angle of the light source after passing through the condensing lens 220; Step S16: setting The collecting lens 220 is on the top 210 of one of the solar cell module frames 20; Step S18: illuminating the concentrating lens 220 with the laser light source 130, adjusting the position of the condensing lens 220, and observing and confirming that the spot of the laser source 130 falls on the second optical pair 204; Step S20: completing assembling the concentrating solar module.

Before the concentrating solar module aligning method is performed, a first aligning coordinate and a second aligning coordinate are calculated according to the optical theory and the curvature of the concentrating lens 220, and the first optical pair is The bit 202 is disposed on the circuit board 200 corresponding to the first alignment coordinate, and the second optical alignment site 204 is disposed on the circuit board 200 corresponding to the second alignment coordinate.

Next, a second embodiment of the concentrating solar module of the present invention will be described. Please refer to the second drawing, which is a schematic view of the apparatus of the second embodiment of the present invention. As shown, the pair of positioning devices 10 includes A susceptor 100, a support member 110, a top surface 112, and a laser light source 130, wherein the support member 110 is disposed on the pedestal 100, and an accommodating space 120 is formed in the support member 110. And the laser light source 130 is disposed on a top surface 112 of the support member at an oblique angle 132.

In the process of assembling a concentrating solar module, a solar cell module frame 20, a circuit board 200 and a concentrating lens 220 are respectively disposed in the accommodating space 120, wherein the circuit board 200 further includes A first laser light receiver 2022, a second laser light receiver 2042 and a solar receiver 230.

When the alignment method of the present invention is used in conjunction with the apparatus of the second embodiment, the difference from the first embodiment is as follows: Step S14: a laser light source 130 is disposed on the alignment device 10, and It has an oblique angle 132 to illuminate the circuit board 200, and then adjusts the position of the circuit board 200 so that the spot of the laser light source 130 falls on the first laser light receiver 2022. The first laser light receiver 2022 is used by the first laser light receiver 2022. Receiving a signal to confirm the alignment of the circuit board 200; and Step S18: the laser light source 130 is used to illuminate the condensing lens 220, and the position of the condensing lens 220 is adjusted, so that the spot of the laser light source 130 falls on the second laser light receiver 2042. The two laser receivers 2042 receive signals to confirm the alignment of the condenser lens 220. The remaining steps are the same as those of the first embodiment described above, and thus will not be described again.

The concentrating solar module aligning method of the present invention can also be applied to an array concentrating solar module. Referring to the third figure, as shown in the figure, it is a schematic diagram of a second embodiment of the present invention. The aligning device 30 includes a pedestal 300, a support member 310, and a top surface 312. The support member 310 is disposed on the pedestal 300, and an accommodating space 320 is formed in the support member 310. The first laser source 330 and a second laser source 332 are disposed on the top surface 312 at an oblique angle 334.

In the process of assembling a concentrating solar module, a solar cell module frame 20, a circuit board 300 and an array concentrating lens 420 are sequentially placed in the accommodating space 320, wherein the circuit board The 400 further includes a first optical pair site 402, a first optical pair site 404, a second optical pair site 406, a second optical pair site 408, and a plurality of solar receivers 430.

Referring to the first and third figures, the steps of assembling the array type concentrating solar module are different from the first embodiment in the following steps 14 and 18: Step 14: using the first laser light source 330 And the second laser light source 332 illuminates the circuit board 400. After adjusting the position of the circuit board 400, it is observed and confirmed that the light spot from the first laser light source 330 falls on the first optical pair position 402. Observing and confirming that the light spot from the second laser light source 332 falls on the optical pair site 404 to complete the alignment of the circuit board 400; and step S18: using the first laser light source 330 and the second The laser light source 332 illuminates the array concentrating lens 420, and adjusts the position of the array concentrating lens 420 so that the spot of the first laser source 330 falls on the second optical pair 406, and the The two laser source 332 spots fall on the second optical pair 408 to complete the alignment of the collecting lens 420.

After the concentrating solar module is assembled by the above concentrating solar module aligning method, after the sunlight is irradiated, the illuminating light can be refracted and focused to the solar receivers through the array concentrating lens 420. A current is generated on the 430, and the array concentrating lens 420 does not need to reserve an optical ineffective area, and all the light incident on the concentrating solar module can be concentrated on the solar receivers 430, so that In terms of technology, the area where the concentrating solar module absorbs sunlight is increased.

In summary, the present invention discloses a concentrating solar module, a aligning device thereof, and a aligning method, wherein the laser light source is obliquely disposed on the aligning device according to the pre-calculated tilt angle. Forming the first optical alignment site and the second optical alignment site on the circuit board according to the pre-computed first alignment coordinate and the second alignment coordinate, and further Setting the first laser light receiver and the second laser light receiver on the circuit board, and directly performing the optical pair of the circuit board and the collecting lens by using the oblique laser light source and the deflected laser light Therefore, the concentrating solar module needs to set an optical ineffective area, enhance the solar light utilization rate, and relatively increase the power output efficiency, and has a substantial effect on optimizing the concentrating solar module.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and the variations, modifications, and modifications of the shapes, structures, features, and spirits described in the claims of the present invention. All should be included in the scope of the patent application of the present invention.

S10~S20‧‧‧Steps

Claims (16)

The aligning device of the concentrating solar module comprises: a pedestal; a supporting member disposed on the pedestal and forming an accommodating space in the supporting member; and a laser light source The solar cell module frame is further disposed in the accommodating space, and a circuit board and a condensing lens are respectively disposed on the solar cell module frame. The circuit board further includes a first optical alignment site and a second optical alignment site, respectively, the laser light source is used to illuminate the circuit board and the collecting lens, and the laser light source is directly observed The light spot falls on the first optical pair and the second optical pair to perform optical alignment of the circuit board and the collecting lens. The aligning device for a concentrating solar module according to claim 1, wherein the tilt angle is calculated according to the curvature and optical theory of the condensing lens. The alignment device of the concentrating solar module of claim 1, wherein the first optical alignment site and the second optical alignment site are based on the curvature of the concentrating lens and the solar cell The position of the module is set by one of the first alignment coordinates and a second alignment coordinate obtained by the operation. The aligning device of the concentrating solar module of claim 3, wherein the first aligning coordinate and the second aligning coordinate may further comprise a first laser light receiver and a second a laser light receiver, and the laser light source is used to illuminate the circuit board and the concentrating lens, and the first laser light receiver and the second laser light receiver receive signals to perform the circuit board and the concentrating light Optical alignment of the lens. The aligning device for a concentrating solar module according to claim 1, wherein the condensing lens is a plano-convex lens, a lenticular lens, a parabolic mirror or a Fresnel lens. The aligning device for the concentrating solar module according to claim 1, wherein The length of the concentrating area of the concentrating lens is the same as the length of the top of the solar cell module frame. A concentrating solar module alignment method, the concentrating solar module comprises a solar battery module frame, a circuit board disposed at the bottom of the solar battery module frame, and further comprising a solar battery, The concentrating lens is disposed on the top of the solar cell module frame parallel to the circuit board, and the aligning method comprises the steps of: arranging the solar cell module frame in one of the accommodating spaces of the pair of bit devices; and setting the circuit board At the bottom of the solar cell module frame; a laser light source is disposed on the alignment device, and has an oblique angle to illuminate the circuit board, and then the circuit board position is adjusted to observe and confirm the light of the laser light source Pointing on a first optical pairing point; setting the collecting lens on top of one of the solar cell module frames; then using the laser light source to illuminate the collecting lens, adjusting the position of the collecting lens, observing and Confirming that the spot of the laser source falls on a second optical pair position; and completing assembling the concentrating solar module. The alignment method of the concentrating solar module described in claim 7 is performed according to the curvature of the concentrating lens and the position of the solar cell before the step of setting the solar cell module frame. A first alignment coordinate and a second alignment coordinate are used as the first optical alignment site and the second optical alignment site. The aligning method of the concentrating solar module according to claim 8 is further configured according to the first aligning coordinate and the second aligning coordinate before the step of setting the solar battery module frame A first laser light receiver and a second laser light receiver are disposed on the circuit board. The method for aligning a concentrating solar module according to claim 9 is further irradiating the circuit board and the condensing lens with the laser light source, and the first laser light receiver and the first The two laser light receivers receive signals for optical alignment of the circuit board and the collecting lens. The aligning method of the concentrating solar module according to claim 7, wherein the condensing lens is a plano-convex lens, a lenticular lens, a parabolic mirror or a Fresnel lens. The aligning method of the concentrating solar module according to claim 7, wherein the concentrating area of the concentrating lens has the same length as the top of the solar module frame. A concentrating solar module includes: a solar cell module frame; a circuit board disposed at the bottom of the solar module frame, comprising a solar cell, a first optical alignment site, and a a second optical pairing point; and a collecting lens disposed parallel to the circuit board at the top of the solar module frame, and the length of the collecting area of the collecting lens and the length of the top of the solar module frame the same. The concentrating solar module of claim 13, wherein the first optical alignment site and the second optical alignment site are based on a curvature of the concentrating lens and a position of the solar cell. The operation is performed by one of a first alignment coordinate and a second alignment coordinate. The concentrating solar module of claim 13, wherein a first laser light receiver is further disposed on the first alignment coordinate, and a second laser light receiver is disposed on the second pair On the coordinates. The concentrating solar module according to claim 13, wherein the condensing lens is a plano-convex lens, a lenticular lens, a parabolic mirror or a Fresnel lens.