WO2016106817A1

WO2016106817A1 - Solar energy device

Info

Publication number: WO2016106817A1
Application number: PCT/CN2015/070492
Authority: WO
Inventors: 赖良星; 张评款; 黄明远; 吴振诚
Original assignee: 友达光电股份有限公司
Priority date: 2014-12-31
Filing date: 2015-01-12
Publication date: 2016-07-07
Also published as: TWI535188B; TW201624910A; CN104539227A; CN104539227B

Abstract

Disclosed is a solar energy device (10), which comprises a photovoltaic cell module (100) and a frame structure (200), wherein the photovoltaic cell module (100) is embedded in the frame structure (200). The frame structure (200) comprises an outer frame (210), a first auxiliary rib (220a), a second auxiliary rib (220b) and a third auxiliary rib (220c). The outer frame (210) comprises a first edge frame (210a), a second edge frame (210b), a third edge frame (210c) and a fourth edge frame (210d) which are connected to each other, wherein the first edge frame (210a) and the second edge frame (210b) are opposite to each other, and the third edge frame (210c) and the fourth edge frame (210d) are opposite to each other. The first auxiliary rib (220a), the second auxiliary rib (220b) and the third auxiliary rib (220c) are respectively bridge connected to the first edge frame (210a) and the second edge frame (210b), and respectively comprise a first I-shaped main body (222), and a pair of first fixedly connection parts (224a, 224b) connected to two opposite side faces of the first I-shaped main body (222). The solar device has a good mechanical strength and a lightweight design at the same time.

Description

Solar installation

Technical field

The present invention relates to a solar device, and in particular to a lightweight solar device.

Background technique

In today's society, with the increasing demand for energy and increasing environmental pollution, less pollution and theoretically inexhaustible renewable energy has become an important issue in today's energy development. Among them, the solar device can directly convert solar energy into electric energy through a photovoltaic cell module, and is a very important and popular part in the research of energy development in recent years.

Since the solar device must be erected outdoors for a long time, it must have good mechanical strength to avoid breakage or breakage due to its own weight or external force (for example, wind). Based on this, the glass thickness of the solar cell module is usually greater than 3.0 mm, and the weight of the solar cell module is usually as high as 18 kg to 19 kg, thereby making it possible to erect the solar device, limited by the weight of the solar cell module, and the erection process is spent. The cost of parts and manual erection cannot be effectively reduced.

Summary of the invention

The present invention provides a solar device that has both good mechanical strength and a lightweight design.

The solar device of the present invention includes a solar cell module and a frame structure in which the solar cell module is embedded in the frame structure. The frame structure includes an outer frame, first auxiliary ribs, second auxiliary ribs and third auxiliary ribs. The outer frame includes a first frame, a second frame, a third frame, and a fourth frame that are connected to each other, wherein the first frame and the second frame are opposite to each other, and the third frame and the fourth frame are opposed to each other. The first auxiliary rib, the second auxiliary rib, and the third auxiliary rib are respectively connected to the first frame and the second frame, and respectively include a first I-shaped body and one of opposite sides of the first I-shaped body For the first fastening portion.

In the solar device of the present invention described above, the solar device can have good mechanical strength by having three auxiliary ribs through the frame structure, and each of the auxiliary ribs includes an I-shaped body and a pair of fixing portions.

Another solar device of the present invention includes a solar cell module and a frame structure in which the solar cell module is embedded in the frame structure. The frame structure includes an outer frame, a first auxiliary rib, and a second auxiliary Ribs and third auxiliary ribs. The outer frame includes a first frame, a second frame, a third frame, and a fourth frame that are connected to each other, wherein the first frame and the second frame are opposite to each other, and the third frame and the fourth frame are opposed to each other. The first auxiliary rib, the second auxiliary rib and the third auxiliary rib are respectively connected to the first frame and the second frame. The first auxiliary rib, the second auxiliary rib, and the third auxiliary rib are arranged in parallel with each other, and the second auxiliary rib is located between the first auxiliary rib and the third auxiliary rib, and between the first auxiliary rib and the third frame The distance and the distance between the third auxiliary rib and the fourth frame edge are respectively a, the distance between the first auxiliary rib and the second auxiliary rib, and the distance between the third auxiliary rib and the second auxiliary rib are respectively b Where b/a is from 1.0 to 1.5.

In the solar device of the present invention, the first auxiliary rib, the second auxiliary rib, and the third auxiliary rib of the frame structure have a positional relationship of b/a of 1.0 to 1.5 between the third frame and the fourth frame side. Therefore, when the solar device is stressed, the frame structure can effectively release the received force on average.

The above described features and advantages of the invention will be apparent from the description and appended claims appended claims

DRAWINGS

1 is a bottom plan view of a solar device in accordance with an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view taken along line A-A' of Fig. 1.

3 is a partially enlarged schematic view of the solar cell module of FIG. 2.

Fig. 4 is a schematic cross-sectional view taken along line B-B' of Fig. 1.

Fig. 5 is a schematic cross-sectional view taken along line C-C' of Fig. 1.

Figure 6 is a schematic cross-sectional view of another embodiment of an auxiliary rib.

7 is a bottom plan view of a solar device in accordance with another embodiment of the present invention.

Fig. 8 is a schematic cross-sectional view taken along line D-D' of Fig. 7.

Fig. 9 is a schematic cross-sectional view taken along line E-E' of Fig. 7.

Figure 10 is a bottom plan view of a solar device in accordance with yet another embodiment of the present invention.

Among them, the reference numerals are as follows:

10, 20, 30: solar installations

100: Solar battery module

110: Backplane

120: substrate

122: light surface

130: Solar battery

140: coating

200: frame structure

210: outer frame

210a: first border

210b: second border

210c: third border

210d: fourth border

212: Alignment mark

220a: first auxiliary rib

220b: second auxiliary rib

220c: third auxiliary rib

222: The first I-shaped body

222a, 310a: top

222b, 310b: bottom

224a, 224b: first fixed part

226: Alignment groove

230, 320: adhesive layer

300a, 300b, 300c, 300d, 400a, 400b, 400c, 400d, 400e, 400f, 400g, 400h, 400i, 400j, 400k, 400l: sub-bracket

310: second I-shaped body

312a, 312b: second fixing portion

D1, D2, D3, D4: distance

P1, P2, P3: lock firmware

PH1, PH2, PH3, PH4: fixed holes

detailed description

1 is a bottom plan view of a solar device in accordance with an embodiment of the present invention. Figure 2 is along the map A schematic cross-sectional view of section line A-A' of 1. 3 is a partially enlarged schematic view of the solar cell module of FIG. 2. Fig. 4 is a schematic cross-sectional view taken along line B-B' of Fig. 1. Fig. 5 is a schematic cross-sectional view taken along line C-C' of Fig. 1.

Referring to FIG. 1 , in the present embodiment, the solar device 10 includes a solar cell module 100 and a frame structure 200 . Hereinafter, the solar cell module 100 and the frame structure 200 and their arrangement relationship will be described in detail with further reference to FIGS. 2 to 5.

Referring to FIG. 1 to FIG. 3 simultaneously, the solar cell module 100 is embedded in the frame structure 200, and the solar cell module 100 includes a back plate 110, a substrate 120, a solar cell 130, and a cladding layer 140.

The back plate 110 is used to reduce the influence of the external environment (such as moisture, temperature, ultraviolet light, etc.) on the solar cell 130, and the back plate 110 is, for example, an ethylene-vinyl acetate copolymer (EVA) film, poly(p-phenylene terephthalate). A polyethylene terephthalate (PET) film or a fluorine coating layer is laminated. The substrate 120 is located above the back plate 110 and has a light receiving surface 122. The material of the substrate 120 includes glass, wherein the glass may be a glass that is chemically strengthened or a surface coated with an anti-reflection film, and the thickness of the substrate 120 may be less than 1.0 mm. The solar cell 130 is disposed between the back plate 110 and the substrate 120. In detail, FIG. 3 only shows two of the solar cells 130 of the solar cell module 100. It should be understood by those skilled in the art that the solar cell module 100 may actually comprise a plurality of two-dimensional arrays arranged in series and in parallel. Solar cell 130. The cladding layer 140 covers the solar cell 130 and is in contact with the backplane 110 and the substrate 100. The material of the coating layer 140 is, for example, an ethylene-vinyl acetate copolymer. In addition, the solar cell module 100 may further include a junction box (not shown) electrically connected to the solar cell 130 to transfer the power generated by the solar cell 130 to achieve the purpose of power output.

Next, referring to FIG. 1 , FIG. 4 to FIG. 5 simultaneously, the frame structure 200 includes an outer frame 210 and first auxiliary ribs 220 a , second auxiliary ribs 220 b and third auxiliary ribs 220 c . In detail, the outer frame 210 includes a first frame 210a, a second frame 210b, a third frame 210c, and a fourth frame 210d, wherein the first frame 210a and the second frame 210b are opposite to each other, and the third frame 210c and The fourth frame sides 210d are opposed to each other. The manner of connecting the first bezel 210a, the second bezel 210b, the third bezel 210c, and the fourth bezel 210d may be by the following connection. For example, the first frame 210a, the second frame 210b, the third frame 210c, and the fourth frame 210d may be welded by the joints of the first frame 210a, the second frame 210b, the third frame 210c, and the fourth frame 210d. , Pull the rivets or the locking screws to connect to each other.

The first auxiliary rib 220a, the second auxiliary rib 220b and the third auxiliary rib 220c are respectively bridged to the first frame 210a and the second frame 210b to strengthen the structural strength of the frame structure 200. As shown in FIG. 1, the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c are arranged not only parallel to each other but also parallel to the first bezel 210a and the second bezel 210b. In detail, the second auxiliary rib 220b is located between the first auxiliary rib 220a and the third auxiliary rib 220c, and the distance D1 between the first auxiliary rib 220a and the third frame 210c and the third auxiliary rib 220c and the fourth frame The distance D4 between the sides 210d is a, the distance D2 between the first auxiliary rib 220a and the second auxiliary rib 220b, and the distance D3 between the second auxiliary rib 220b and the third auxiliary rib 220c are respectively b, where b /a is 1.0 to 1.5. In the present embodiment, the distance D1 and the distance D4 are, for example, 30 cm to 45 cm, and further, for example, 35 cm to 40 cm, the distance D2 and the distance D3 are, for example, 40 cm to 50 cm, and further, for example, 42.5 cm to 47.5 cm.

Referring to FIG. 4, further, the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c respectively include a first I-shaped body 222 having a top portion 222a and a bottom portion 222b and connected to the first I-shaped body. A pair of

first fixing portions

224a, 224b on opposite sides of the main body 222 are as shown in Fig. 4, wherein Fig. 4 only shows a cross section of the second auxiliary rib 220b. Further, the first I-shaped body 222 and the

first fastening portions

224a, 224b are, for example, integrally formed. In addition, the I-shaped body can assume an I-shape or an I-shape.

Referring to FIG. 5, in addition, the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c may be combined with the outer frame 210 through the

first fixing portions

224a, 224b from the outside by using the locks P1, P2, respectively. Fixed, as shown in FIG. 5, wherein FIG. 5 only shows a cross section of the second auxiliary rib 220b at the first fixing portion 224a. In detail, the first frame 210a has two fixing holes PH1, PH2 opposite to each other and corresponding to the first fixing portion 224a, and the second frame 210b has two solids facing each other and corresponding to the first fixing portion 224a. The holes PH3 and PH4 are connected, so that the lock P1 can penetrate from the fixing hole PH1 and sequentially enter the fixing hole PH2 and the first fixing portion 224a. The locking member P2 can penetrate from the fixing hole PH3 and enter sequentially. The fixing hole PH4 and the first fixing portion 224a are fixed to fix the fixing holes PH1, PH2, PH3, PH4 and the first fixing portion 224a to each other.

In addition, referring to FIG. 1 and FIG. 4 simultaneously, the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c may further include an alignment groove 226 disposed at the bottom 222b of the first I-shaped body 222, And the first frame 210a and the second frame 210b may also be provided corresponding to the alignment groove 226 Multiple alignment marks 212. In this way, when the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c are assembled with the outer frame 210, the alignment groove 226 and the alignment mark 212 are aligned with each other, thereby being effective. Reduce assembly time and increase production efficiency.

In addition, the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c and the solar cell module 100 further include an adhesive layer 230 respectively, so that the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary The rib 220c is attached to the solar cell module 100 as shown in FIGS. 4 and 5. In detail, since the solar cell module 100 has a texture fragile property, and the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c have a relatively high hardness, the solar cell module 100 is not only made by using the adhesive layer 230. The force can be uniformly dispersed to the frame structure 200, and the adhesive layer 230 can also absorb the stress generated by the first auxiliary rib 220a, the second auxiliary rib 220b and the third auxiliary rib 220c to support the solar cell module 100, thereby providing effective The supporting force and the solar cell module 100 are prevented from being damaged or broken. Further, the material of the adhesive layer 230 is, for example, a foam double-sided tape.

As described above, the thickness of the substrate 120 of the solar cell module 100 may be less than 1.0 mm. In general, the weight of the solar cell module 100 is reduced as compared with a known solar cell module having a substrate thickness of at least 3.0 mm, but the mechanical strength of the substrate 120 is also much reduced, and the center of the substrate 120 is also more susceptible to serious occurrence. The phenomenon of bending. In view of this, in the solar device 10 of the present embodiment, the frame structure 200 has the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c, and the first auxiliary rib 220a and the second auxiliary rib 220b. And the third auxiliary ribs 220c respectively include a first I-shaped body 222 and a pair of

first fixing portions

224a, 224b, whereby when the solar device 10 is subjected to an external force, the first auxiliary rib 220a, the second auxiliary rib 220b and the first The three auxiliary ribs 220c can not only disperse the stress and shear force received by the solar cell module 100, but also increase the stress intensity that the solar device 10 can withstand. As a result, the solar device 10 of the present invention has a good mechanical strength while achieving a light weight through the thickness of the substrate 120 of less than 1.0 mm.

Hereinafter, features of the present invention will be more specifically described by performing mechanical load simulation tests using an embodiment of the solar device 10. While the following examples are described, the invention should not be construed restrictively by the examples described below.

The mechanical load simulation test is to calculate the deformation amount of the solar device 10 using the Abaqus simulation software, wherein the simulation test condition is: the elastic modulus of the auxiliary rib is set to 65 GPa, the Pusong ratio (Poisson's ratio) is set to 0.33, uniformly or vertically providing a pressure of 5400 Pa to the front side or 2400 Pa to the back side; and the solar device 10 used is: the thickness of the substrate 120 is 0.85 mm, the distance D1 and the distance D4 are 33 cm. The distance D2 and the distance D3 were 43.3 cm, and the weight was 10.5 kg. The calculation results are shown in Table 1.

Table 1

In addition, under this simulation condition, a comparative experiment is to perform a mechanical load simulation test on the solar device 10 after removing the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c. The simulation results show that whether the pressure of 5400 Pa is provided on the front side or the pressure of 2400 Pa on the back side causes cracking of the substrate 120, which causes the solar device 10 to fail. In short, if it is generally known that solar devices do not have the problem of substrate cracking without the auxiliary ribs. In addition, according to different customers' demand for products, there are different specifications. The high standard requires simulation results to provide 5400Pa under the pressure on the front side, and the deformation amount is below 25.00mm to meet the product demand; while under the pressure of 2400Pa on the back side The deformation amount is less than 12.00mm to meet the product requirements. The usual standard requires that the simulation result meets the product requirements under the pressure of 5400 Pa on the front side and the deformation amount of 27.00 mm or less. Under the pressure of 2400 Pa on the back side, the deformation amount is 13.00 mm or less to meet the product requirements.

Based on Table 1, it can be seen that in the embodiment, the solar device 10 having a thickness of 0.85 mm and a weight of only 10.5 kg is still within the normal specifications of the product, but still has an improved space in mechanical strength to meet the requirements. High standard products require standards.

Further, in the present embodiment, the

first fixing portions

224a and 224b are disposed at the center of the first I-shaped body 222, but the present invention is not limited thereto. The

first fastening portion

224a, 224b may be disposed at any position on the first I-shaped body 222, wherein it is preferably disposed at the top 222a of the first I-shaped body 222, depending on the actual mechanical strength requirements of the product. As shown in Figure 6. In detail, the inertia of the auxiliary rib (the first auxiliary rib 220a, the second auxiliary rib 220b, or the third auxiliary rib 220c) is different as the

first fixing portions

224a, 224b are disposed on the first I-shaped body 222 The moments will be different, wherein the greater the moment of inertia of the auxiliary ribs, the greater the stress that the auxiliary ribs can withstand. That is It is said that when the

first fixing portions

224a, 224b are disposed on the top portion 222a of the first I-shaped body 222, the auxiliary ribs (the first auxiliary rib 220a, the second auxiliary rib 220b or the third auxiliary rib 220c) have a large inertia Moment.

By verifying by the Pro-E simulation software, it can be obtained that when the

first fixing portions

224a, 224b are disposed at the center of the first I-shaped body 222 (as shown in FIG. 4), the moment of inertia is 15157 kg·m 2 ; When the fixing

portions

224a and 224b are disposed on the top portion 222a of the first I-shaped body 222 (as shown in FIG. 6), the moment of inertia is 17078 kg·m 2 . Therefore, as a result of the simulation verification, it is understood that the

first fixing portions

224a, 224b are disposed at the top portion 222a of the first I-shaped body 222.

Further, in the present embodiment, the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c are respectively bridged to the first bezel 210a and the second bezel 210b, but the present invention is not limited thereto. In other embodiments, the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c may also be bridged to the third frame 210c and the fourth frame edge 210d, respectively.

In addition, although the registration groove 226 is disposed at the bottom 222b of the first I-shaped body 222 in the present embodiment, the present invention is not limited thereto. In other embodiments, the alignment groove 226 may also be disposed at the top 222a of the first I-shaped body 222.

In addition, in the present embodiment, the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c respectively include the first I-shaped body 222 and the

first fixing portions

224a, 224b, but the present invention is not limited thereto. this. In other embodiments, the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c have a b/a relationship of 1.0 to 1.5 between the third frame 210c and the fourth frame edge 210d. The outer shape of the auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c may be only strip shapes.

7 is a bottom plan view of a solar device in accordance with another embodiment of the present invention. Fig. 8 is a schematic cross-sectional view taken along line D-D' of Fig. 7. Fig. 9 is a schematic cross-sectional view taken along line E-E' of Fig. 7. Referring to FIG. 7 and FIG. 1 simultaneously, the solar device 20 of FIG. 7 is similar to the solar device 10 of FIG. 1 described above, and thus the same components as those of FIG. 1 are denoted by the same reference numerals and will not be described again.

The difference between the solar device 20 of FIG. 7 and the solar device 10 of FIG. 1 is that the solar device 20 of FIG. 7 further includes four sub-brackets 300a, 300b, 300c, 300d connected to the second auxiliary ribs 220b, respectively. In detail, the extending direction of the sub-brackets 300a, 300b, 300c, 300d and the extending direction of the second auxiliary rib 220b intersect each other, and extend outward from the second auxiliary rib 220b, and the lengths of the sub-brackets 300a, 300b, 300c, 300d It can be 40mm to 500mm respectively.

Further, the sub-brackets 300a, 300b, 300c, 300d respectively include a second I-shaped body 310 having a top portion 310a and a bottom portion 310b, and a pair of second solid portions connected to opposite sides of the second I-shaped body 310. The connecting

portions

312a, 312b and the extending portion 314 extending from the bottom portion 310b of the second I-shaped body 310 are as shown in FIG. 8 and FIG. 9, wherein FIG. 8 only shows that the sub-bracket 300a and the sub-bracket 300b are fixed in the second. The section at portion 312a and FIG. 9 only depict a section of sub-bracket 300a.

In addition, the sub-brackets 300a, 300b, 300c, and 300d may be coupled and fixed to the bottom portion 222b of the first I-shaped body 222 of the second auxiliary rib 220b by the extending portion 314, respectively. In detail, referring to FIG. 7 and FIG. 8 , the sub-brackets 300 a , 300 b , 300 c , 300 d can respectively lock the first I-shaped body 222 by penetrating the lock P3 from the outside of the bottom 222 b of the first I-shaped body 222 . The bottom portion 222b and the extension portion 314 are fixed to the bottom portion 222b of the first I-shaped body 222.

In addition, the sub-brackets 300a, 300b, 300c, and 300d and the solar cell module 100 further include an adhesive layer 320 respectively, so that the sub-brackets 300a, 300b, 300c, and 300d are attached to the solar cell module 100, and the sub-frames 300a, The 300b, 300c, and 300d are bottomed by the solar cell module 100, as shown in FIGS. 8 and 9. The adhesive layer 320 has the same function as the adhesive layer 230, and the material of the adhesive layer 320 is, for example, a foam double-sided tape.

In the solar device 20 of the present embodiment, the frame structure 200 includes, in addition to the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c, four sub-brackets 300a connected to the second auxiliary rib 220b. , 300b, 300c, 300d, and extending outward from the second auxiliary rib 220b, the lengths of the sub-brackets 300a, 300b, 300c, 300d are respectively 40mm to 500mm, whereby when the solar device 20 is subjected to an external force, in addition to the first auxiliary The sub-brackets 300a, 300b, 300c, and 300d can further disperse the stress and shear force received by the solar cell module 100, and further improve the functions provided by the ribs 220a, the second auxiliary ribs 220b, and the third auxiliary ribs 220c. The stress intensity that the solar device 20 can withstand. As a result, the solar device 20 having a thickness of the substrate 120 of less than 1.0 mm and achieving weight reduction also has good mechanical strength.

Hereinafter, the features of the present invention will be more specifically described by performing a mechanical load simulation test using an embodiment of the solar device 20. While the following examples are described, the invention should not be construed restrictively by the examples described below.

In addition to using the solar device 20 for the simulation test, the amount of deformation is calculated in the same conditions and manner as when the solar device 10 is subjected to the simulation test, and evaluated by the same standard, wherein the solar device 20 is: the thickness of the substrate 120 is 0.85. Mm, distance D1 and distance D4 are 33cm, The distance D2 and the distance D3 are 43.3 cm, the weight is 10.75 kg, and the second auxiliary rib 220b extends outward, and the lengths of the sub-brackets 300a, 300b, 300c, and 300d are respectively 125 mm, and the results are shown in Table 2. .

Table 2

Based on Tables 1 and 2, the solar device 20 provided with the sub-brackets 300a, 300b, 300c, and 300d has a relatively good mechanical strength and a weight of only 10.75 kg as compared with the solar device 10.

In addition, in the present embodiment, the solar device 20 includes four sub-brackets 300a, 300b, 300c, and 300d connected to the second auxiliary rib 220b, but the present invention is not limited thereto as long as the first auxiliary rib 220a and the second auxiliary It is within the scope of the invention to connect a sub-bracket to one of the rib 220b and the third auxiliary rib 220c.

In addition, in the present embodiment, the sub-brackets 300a, 300b, 300c, and 300d respectively include the second I-shaped body 310 and the pair of

second fixing portions

312a and 312b connected to the second I-shaped body 310, but the present invention Not limited to this. In other embodiments, the sub-brackets 300a, 300b, 300c, 300d may also include only the second I-shaped body 310.

Further, in the present embodiment, the extending portion 314 extends from the bottom portion 310b of the second I-shaped body 310 and is fixed to the bottom portion 222b of the first I-shaped body 222, but the present invention is not limited thereto. In other embodiments, the extension 314 may also extend from the top 310a of the second I-shaped body 310 and be secured to the top 222a of the first I-shaped body 222.

Further, in the present embodiment, the

second fixing portions

312a, 312b are disposed at the center of the second I-shaped body 310, but like the

first fixing portions

224a, 224b, according to the actual product demand for mechanical strength The

second fixing portions

312a, 312b may be disposed at any one of the positions on the second I-shaped body 310.

Figure 10 is a bottom plan view of a solar device in accordance with yet another embodiment of the present invention. Referring to FIG. 10 and FIG. 7 simultaneously, the solar device 30 of FIG. 10 is similar to the solar device 20 of FIG. 7 described above, and thus the same components as those of FIG. 7 are denoted by the same reference numerals and will not be described again.

The difference between the solar device 30 of FIG. 10 and the solar device 20 of FIG. 7 is that the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c of the solar device 30 of FIG. 10 are connected. A sub-bracket is connected, wherein the sub-brackets 400a, 400b, 400c, 400d are connected to the first auxiliary rib 220a, and the sub-brackets 400e, 400f, 400g, 400h are connected to the second

auxiliary rib

220b, 400i, 400j, 400k, 400l are connected to the The three auxiliary ribs 220c; and the solar device 20 of FIG. 7 has only the second auxiliary ribs 220b connected to the sub-brackets 300a, 300b, 300c, 300d.

Similarly, in the solar device 30 of the present embodiment, the frame structure 200 includes a first auxiliary rib 220a, a second auxiliary rib 220b, and a third auxiliary rib 220c, and further includes a first auxiliary rib 220a and a second. 12 sub-brackets 400a, 400b, 400c, 400d, 400e, 400f, 400g, 400h, 400i, 400j, 400k, 400l of the auxiliary rib 220b and the third auxiliary rib 220c, thereby when the solar device 30 is subjected to an external force, In addition to the functions provided by the first auxiliary rib 220a, the second auxiliary rib 220b, and the third auxiliary rib 220c, the sub-brackets 400a, 400b, 400c, 400d, 400e, 400f, 400g, 400h, 400i, 400j, 400k, 400l can further The stress and shear force received by the solar cell module 100 are dispersed, and the stress intensity that the solar device 30 can withstand is further improved. As a result, the solar device 30 having a thickness of the substrate 120 of less than 1.0 mm and achieving weight reduction also has good mechanical strength.

Hereinafter, the features of the present invention will be more specifically described by performing mechanical load simulation tests using an embodiment of the solar device 30. While the following examples are described, the invention should not be construed restrictively by the examples described below.

Except that the solar device 30 is used for the simulation test, the amount of deformation is calculated under the same conditions and manner as when the solar device 10 is subjected to the simulation test, and evaluated by the same standard, wherein the solar device 30 is: the substrate 120 has a thickness of 0.85. Mm, distance D1 and distance D4 are 33cm, distance D2 and distance D3 are 43.3cm, weight is 11.25kg, and extend outward from the second auxiliary rib 220b, sub-brackets 400a, 400b, 400c, 400d, 400e, 400f, 400g The examples of 400h, 400i, 400j, 400k, and 400l are respectively 125 mm, and the results are shown in Table 3.

table 3

Based on Table 1, Table 2, and Table 3, compared to the solar device 10 and the solar device 20, the sub-brackets 400a, 400b, 400c, 400d, 400e, 400f, 400g, 400h, 400i, 400j, 400k, 400l are provided. The solar device 30 has the best mechanical strength and weighs only 11.25 kg.

In summary, in the solar device of the embodiment of the present invention, the frame structure has three auxiliary ribs, and each of the auxiliary ribs includes an I-shaped body and a pair of fixing portions, so that even the thickness of the substrate of the solar cell module Less than 1.0 mm, the solar device still has good mechanical strength. That is to say, the solar device of the present invention has both good mechanical strength and a lightweight design. Further, in the solar device of the present invention, the auxiliary rib can be fixed to the outer frame by the pair of fixing portions, whereby the members of the solar device can be effectively simplified and the erection time can be shortened. In addition, the mechanical strength of the solar device can be further improved by providing a sub-bracket connected to the auxiliary rib.

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

Claims

A solar device comprising:

a solar cell module;

a frame structure, the solar cell module is embedded in the frame structure, wherein the frame structure comprises:

An outer frame includes a first frame, a second frame, a third frame, and a fourth frame connected to each other, wherein the first frame and the second frame are opposite to each other, and the third frame and the first frame Four frame edges are opposite each other;

a first auxiliary rib, a second auxiliary rib and a third auxiliary rib are respectively connected to the first frame and the second frame, and the first auxiliary rib, the second auxiliary rib and the third auxiliary The ribs include:

a first I-shaped body;

A pair of first fastening portions are coupled to opposite sides of the first I-shaped body.
The solar device of claim 1 further comprising a plurality of fasteners, wherein the first frame and the second frame are provided with a plurality of fastening holes corresponding to the first fastening portions, and the locks The fixing holes are respectively inserted into the corresponding fixing holes and the first fixing portions to lock the fixing holes and the first fixing portions.
A solar device according to claim 1 or 2, wherein the pair of first fastening portions are connected to the bottom of the first I-shaped body or the top of the first I-shaped body.
The solar device according to claim 1 or 2, wherein the first auxiliary rib, the second auxiliary rib, and the third auxiliary rib are arranged in parallel with each other, and the second auxiliary rib is located at the first auxiliary rib and the third Between the auxiliary ribs, and the distance between the first auxiliary rib and the third frame and the distance between the third auxiliary rib and the fourth frame edge are respectively a, the first auxiliary rib and the second auxiliary The distance between the ribs and the distance between the third auxiliary rib and the second auxiliary rib are respectively b, wherein b/a is 1.0 to 1.5.
The solar device according to claim 1 or 2, further comprising at least one sub-bracket connected to at least one of the first auxiliary rib, the second auxiliary rib, and the third auxiliary rib, and the at least one sub-bracket The solar cell module is bottomed.
The solar device of claim 5 wherein each sub-bracket comprises:

a second I-shaped body;

An extension extends from a bottom of the second I-shaped body or a top of the second I-shaped body and is fixed to a top of the first I-shaped body or a bottom of the first I-shaped body.
The solar device of claim 6 wherein each of the sub-brackets further includes a pair of second securing portions coupled to opposite sides of the second I-shaped body.
The solar device of claim 5, wherein each sub-bracket extends outwardly from the first auxiliary rib, the second auxiliary rib or the third auxiliary rib, and each sub-bracket has a length of 40 mm to 500 mm.
The solar device according to claim 5, wherein an extending direction of each of the sub-brackets and an extending direction of the first auxiliary rib, the second auxiliary rib or the third auxiliary rib intersect each other.
The solar device of claim 1 wherein the solar cell module comprises:

a backboard

a substrate positioned above the backing plate;

a solar cell disposed between the backplane and the substrate;

A cladding layer encloses the solar cell and is in contact with the substrate.
The solar device according to claim 10, wherein the material of the substrate comprises glass, and the thickness of the substrate is less than 1.0 mm.
The solar device of claim 1 , wherein the first auxiliary rib, the second auxiliary rib and the third auxiliary rib further comprise a pair of bit grooves respectively disposed at the top of the first I-shaped body or the first a bottom of the I-shaped body, and the first frame and the second frame are provided with a plurality of alignment marks corresponding to the alignment groove.