TW202101897A - Solar cell module - Google Patents

Abstract

A solar cell module includes a first series battery pack and a second series battery pack. The first series battery pack includes a plurality of first solar cells and a plurality of first wire groups connecting the first solar cells in series. The second series battery pack is disposed above the first series battery pack and includes a plurality of second solar cells and a plurality of second wire groups connected in series with the second solar cells. The first solar cells and the second solar cells are arranged in a first direction. There are a plurality of first gaps between the first solar cells and a plurality of second gaps between the second solar cells, such that the first solar cells receive light respectively from the second gaps. A ratio of a length and a width of each of the first and second solar cells is not less than 2 and not greater than 6.

Description

Solar cell module

This disclosure relates to a solar cell module.

In recent years, as the problem of energy shortages has become increasingly serious, various alternative energy sources have continued to emerge. Among the many alternative energy sources, the solar energy industry is the most promising. Solar cells can convert light energy into electrical energy, and sunlight is the main source of light energy. Since solar cells do not generate greenhouse gases during the conversion process, a green energy environment can be realized.

With the progress and development of the solar energy industry, solar cells have recently been widely used in various electronic products. However, how to effectively use solar energy and improve the efficiency of solar cells in energy conversion is still a major challenge.

One technical aspect of the present disclosure is a solar cell module including at least one first series battery pack and at least one second series battery pack. The first series battery group includes a plurality of first solar cells and a plurality of first wire groups connected in series with the first solar cells. The first solar cells are arranged along the first direction, and there are a plurality of first gaps between the first solar cells. The length of the first solar cell The ratio to the width is greater than or equal to 2 and less than or equal to 6. The second series battery pack is placed above the first series battery pack and includes a plurality of second solar cells and a plurality of second wire groups connected in series with the second solar cells. The second solar cells are arranged along the first direction, and there are a plurality of second gaps between the second solar cells, so that the first solar cells receive light from the second gaps respectively. The ratio of the length to the width of the second solar cell is greater than or equal to 2 and less than or equal to 6.

In an embodiment of the present disclosure, the first direction is the width direction of the first solar cell.

In an embodiment of the present disclosure, the distance of the first gap is approximately equal to the width of the second solar cell, and the distance of the second gap is approximately equal to the width of the first solar cell.

In an embodiment of the present disclosure, the first wire group includes a plurality of first wires arranged in parallel, and the second wire group includes a plurality of second wires arranged in parallel.

In an embodiment of the present disclosure, the number of first wires in the first wire group and the number of second wires in the second wire group are respectively 2 to 20.

In an embodiment of the present disclosure, the solar cell module further includes a bus line for electrically connecting the first series battery pack and the second series battery pack.

In an embodiment of the present disclosure, the number of the first series battery pack is plural, and the number of the second series battery pack is plural, and the number of the first solar cells is the same as the number of the second solar cells.

In an embodiment of the present disclosure, the number of the first solar cells is an odd number, and the first solar cells in the adjacent first series battery groups are arranged staggered, and the second solar cells in the adjacent second series battery groups Battery staggered row Column.

In an embodiment of the present disclosure, the number of the first solar cells is an even number, and the first solar cells in the adjacent first series battery group are arranged in parallel, and the second solar cells in the adjacent second series battery group are arranged in parallel. The batteries are arranged in parallel.

In an embodiment of the present disclosure, the solar cell module further includes an insulating layer, and the insulating layer is located between the first series battery pack and the second series battery pack to electrically insulate the first series battery pack and the second series battery pack .

Another technical aspect of the present disclosure is a solar cell module including a backplane and a plurality of battery layers in series and parallel. The series-parallel battery layer is placed above the backplane. The series-parallel battery layer includes a plurality of series-connected battery packs. The series battery pack includes a plurality of solar cells and a plurality of wire sets of the series solar cells. The ratio of the length to the width of the solar cell is greater than or equal to 2 and less than or equal to 6. The vertical projections of the solar cells in the tandem cell layer on the backplane do not overlap or partially overlap each other.

In an embodiment of the present disclosure, the solar cells in the series battery pack are arranged along the width direction of the solar cells.

In an embodiment of the present disclosure, the wire group includes a plurality of wires arranged in parallel, and the number of wires in the wire group is 2 to 20.

In an embodiment of the present disclosure, the solar cell module further includes a bus line for electrically connecting the battery layers in series.

In one embodiment of the present disclosure, the solar cell module further includes a plurality of insulating layers, which are respectively located between the series battery layers to electrically insulate the series battery layers.

According to the above embodiments of the present disclosure, the second solar cell is placed above the first solar cell, and there is a first gap between the first solar cells, and there is a second gap between the second solar cells, and the first solar cells are separated from each other. The second gap is exposed, so that the first solar cells can receive light from the second gap, respectively. With such a double-layer structure, the first solar cell and the second solar cell in the top view angle are adjacent to each other, and the first solar cell and the second solar cell in the side view angle are staggered up and down. . In this way, although the first solar cell and the second solar cell are closely arranged on the side of the solar cell module facing the solar light source (that is, the side presented from the upper view angle), the first solar cell and the second solar cell are actually The two solar cells are in a staggered relationship, so there is no need to worry about short circuits between the first solar cell and the second solar cell due to the short distance between them. In addition, because the solar cell module formed with this structure does not have to consider the factor of the horizontal distance between the solar cells, more solar cells can be installed in the unit area, and then receive more sunlight, effectively increasing the solar cell modules In the light-receiving area and effective power generation area. In addition, in addition to the above-mentioned double-layer structure, the solar cell module of the present disclosure can also be a multilayer structure. In the multi-layer structure, the vertical projections of each solar cell in each series cell layer on the backplane do not overlap or partially overlap each other, so it can ensure that each solar cell in the solar cell module can receive sunlight. To achieve the purpose of effective use of sunlight.

100, 100a, 100b, 100c, 100d, 100e‧‧‧Solar cell module

110‧‧‧First series battery pack

112‧‧‧The first solar cell

113‧‧‧First gap

114‧‧‧The first wire group

116‧‧‧First wire

120‧‧‧Second series battery pack

122‧‧‧Second solar cell

123‧‧‧Second gap

124‧‧‧Second wire group

126‧‧‧Second wire

130‧‧‧Confluence line

140‧‧‧Cover plate

150‧‧‧Back plate

160‧‧‧Transparent insulating layer

210a, 210b‧‧‧First series battery layer

220a, 220b‧‧‧second series battery layer

230‧‧‧Series and parallel battery layer

230a‧‧‧Top series battery layer

230b‧‧‧Intermediate series battery layer

230c‧‧‧Bottom series battery layer

240‧‧‧Solar battery pack

242, 242a, 242b, 242c‧‧‧Solar cell

243a, 243b, 243c‧‧‧Gap

250‧‧‧Wire Set

252‧‧‧Wire

P1, P2, P3‧‧‧Projection

W, W1, W2‧‧‧Width

L, L1, L2‧‧‧Length

In order to make the above and other objectives, features, advantages and embodiments of the present invention more obvious and understandable, the detailed description of the attached drawings is as follows: Figure 1 shows a top view of a solar cell module according to an embodiment of the present disclosure.

FIG. 2 shows a side view of a solar cell string according to an embodiment of the present disclosure.

FIG. 3 shows a top view of a solar cell module according to another embodiment of the present disclosure.

FIG. 4 shows a top view of a solar cell module according to another embodiment of the present disclosure.

FIG. 5 shows a side view of a solar cell module according to an embodiment of the present disclosure.

FIG. 6 is a top view of the first series battery layer according to an embodiment of the present disclosure.

FIG. 7 is a top view of the second series battery layer according to an embodiment of the present disclosure.

FIG. 8 is a top view of a solar cell module obtained by electrically connecting the first series cell layer in FIG. 6 and the second series cell layer in FIG. 7.

FIG. 9 is a top view of the first series battery layer according to another embodiment of the present disclosure.

FIG. 10 is a top view of a second series battery layer according to another embodiment of the present disclosure.

FIG. 11 is a top view of a solar cell module obtained by electrically connecting the first series cell layer in FIG. 9 and the second series cell layer in FIG. 10.

FIG. 12 is a top view of a solar cell module according to another embodiment of the present disclosure.

Fig. 13 shows a side view of the solar cell module of Fig. 12.

Hereinafter, a plurality of implementation manners of the present disclosure will be disclosed in schematic form. For the sake of clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this disclosure. In other words, in some implementations of this disclosure, these practical details are unnecessary. In addition, in order to simplify the drawings, some conventionally used structures and elements will be shown in a simple schematic manner in the drawings.

It should be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected" to another element, it can be directly on or connected to the other element, or Intermediate elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements. As used herein, "connection" can refer to physical and/or electrical connection. Furthermore, "electrical connection" or "coupling" can mean that there are other elements between two elements.

As used herein, "approximately", "approximately", or "substantially" includes the stated value and the average value within the acceptable deviation range of the specific value determined by a person of ordinary skill in the art, taking into account the measurement in question and the A certain amount of measurement-related error (ie, the limitation of the measurement system). For example, "about" can mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±10%, ±5%. Furthermore, the "about", "approximate" or "substantially" used herein can select a more acceptable deviation range or standard deviation based on optical properties, etching properties or other properties, and not one standard deviation can be applied to all properties .

FIG. 1 shows a top view of a solar cell module 100 according to an embodiment of the present disclosure. FIG. 2 shows a side view of a solar cell string according to an embodiment of the present disclosure. Referring to FIGS. 1 and 2 at the same time, the solar cell module 100 includes at least one first series battery pack 110 and at least one second series battery pack 120. The first series battery group 110 includes a plurality of first solar cells 112 and a plurality of first wire groups 114 connecting the first solar cells 112 in series. The first solar cells 112 are arranged along the first direction, and there are a plurality of first gaps 113 between the first solar cells 112. The ratio of the length L1 to the width W1 of the first solar cell 112 is greater than or equal to 2 and less than or equal to 6. The second series battery group 120 is located on the first series battery group 110 and includes a plurality of second solar cells 122 and a plurality of second wire groups 124 connected in series with the second solar cells 122. The second solar cells 122 are arranged along the first direction, and there are a plurality of second gaps 123 between the second solar cells 122, so that the first solar cells 112 receive light from the second gaps 123 respectively. The ratio of the length L2 to the width W2 of the second solar cell 122 is greater than or equal to 2 and less than or equal to 6.

In this embodiment, the second solar cell 122 is placed above the first solar cell 112, and the first solar cell 112 has a first gap 113, and the second solar cell 122 has a second gap 123, and A solar cell 112 is exposed from the second gap 123 respectively, so that the first solar cell 112 can receive light from the second gap 123 respectively. Using such a double-layer structure, the first solar cell 112 and the second solar cell 122 at the top view angle (that is, the viewing angle of FIG. 1) are adjacent to each other, while the side view angle (that is, the view of FIG. 2 The first solar cell 112 and the second solar cell 122 under the viewing angle are staggered up and down. In this way, although the solar cell module 100 faces It can be seen that the first solar cell 112 and the second solar cell 122 are arranged adjacent to each other on the side facing the sun light source (that is, the side presented from the upper view angle), but in fact the first solar cell 112 and the second solar cell 122 are mutually aligned The relationship is staggered up and down, so there is no need to worry about short circuits between the first solar cell 112 and the second solar cell 122 due to the short distance.

In this embodiment, the first solar cells 112 in the first series battery pack 110 and the second solar cells 122 in the second series battery pack 120 are both arranged in parallel along the first direction, and the first direction referred to here is It is the width W1 (or width W2) direction of the first solar cell 112 (or the second solar cell 122). In other words, the first series battery pack 110 and the second series battery pack 120 are arranged parallel to each other (as shown in FIG. 2).

Referring to Figures 1 and 2 at the same time, since the distance of the second gap 123 is approximately equal to the width W1 of the first solar cell 112, if viewed from above, the first solar cell 112 will not only be exposed from the second gap 123, but also They are closely arranged with adjacent second solar cells 122 respectively. In the same way, since the distance of the first gap 113 is approximately equal to the width W2 of the second solar cell 122, if viewed from the downward angle, the second solar cell 122 is exposed from the first gap 113 and is also connected to the adjacent first The solar cells 112 are closely arranged. That is, in the horizontal direction, there is almost no distance between the first solar cell 112 and the second solar cell 122 (that is, the distance approaches zero).

Since the distance between the first gap 113 and the second gap 123 is approximately equal to the width W2 of the second solar cell 122 and the width W1 of the first solar cell 112, the first solar cell 112 and the second solar cell 122 can be facing the sun light source. The side (that is, the side presented from the top view) is tight The state of the arrangement. Since the solar cell module 100 formed with this structure does not have to consider the factor of the horizontal distance between the first solar cell 112 and the second solar cell 122, more solar cells can be arranged in a unit area, thereby receiving more sun. The solar cell module 100 effectively increases the light-receiving area and the effective power-generating area in the solar cell module 100 without paying extra large costs.

Referring to FIGS. 1 and 2 at the same time, one end of the first wire group 114 in the first series battery group 110 is electrically connected to the upper surface of the first solar cell 112 (for example, connected to the upper surface of the first solar cell 112). The positive electrode of the first solar cell 112), and the other end is electrically connected to the lower surface of the first solar cell 112 (for example, connected to the negative electrode located on the lower surface of the first solar cell 112). In the same way, one end of the second wire group 124 in the second series battery group 120 is electrically connected to the upper surface of the second solar cell 122 (for example, connected to the positive electrode located on the upper surface of the second solar cell 122), and the other end It is electrically connected to the lower surface of the second solar cell 122 (for example, connected to the negative electrode located on the lower surface of the second solar cell 122).

In an embodiment of the present disclosure, the first wire group 114 includes a plurality of first wires 116 arranged in parallel, and the second wire group 124 includes a plurality of second wires 126 arranged in parallel, and the first wire group 114 in each first wire group 114 The number of one wire 116 and the number of second wires 126 in each second wire group 124 can be 2 to 20, but is not limited thereto, and the number can be determined according to the needs of the designer. Specifically, please refer to FIGS. 3 and 4. FIG. 3 illustrates a top view of a solar cell module 100a according to another embodiment of the present disclosure, and FIG. 4 illustrates a solar cell module 100a according to another embodiment of the present disclosure. The top view of the battery module 100b. As shown in FIGS. 3 and 4, in the solar cell module 100a, the first wire 116 in each first wire group 114 and the first wire 116 in each second wire group 124 are The number of the two wires 126 is 6 respectively; and in the solar cell module 100b, the numbers of the first wires 116 in each first wire group 114 and the second wires 126 in each second wire group 124 are respectively 14 articles. In addition, the cross section of the first wire 116 and the second wire 126 may be circular, but not limited to this. In other embodiments, the cross section of the first wire 116 and the second wire 126 may have various geometric shapes (For example, rectangle, triangle or polygon, etc.).

Referring to Figure 1, the solar cell module 100 further includes a bus line 130. The bus line 130 is disposed at one end of the first series battery pack 110 and the second series battery pack 120, and is connected to the first end of the first series battery pack 110. The wire group 114 is connected to the second wire group 124 at the end of the second series battery group 120. The bus line 130 can flow the current of the first series battery pack 110 and the second series battery pack 120, and further electrically connect to other electronic devices. Since the bus line 130 is located at the end of the solar cell module 100, there is no need to reserve an additional bus line 130 space in the middle section of the solar cell module 100 for combining the first wire group 114 and the second wire group 124. As a result, the area where the solar cell can be installed in the solar cell module 100 is increased, thereby increasing the light receiving area and the effective power generation area in the solar cell module 100.

FIG. 5 shows a side view of the solar cell module 100 according to an embodiment of the present disclosure. In this embodiment, a cover plate 140 can be further provided on the light receiving side of the solar cell module 100, and a back plate 150 can be provided on the backlight side of the solar cell module 100. The cover 140 may be a material with high light transmittance, such as transparent glass or transparent plastic, to protect the first series battery pack 110 and the second series battery pack 120 from direct impact by external forces and allow sunlight to pass through. The back plate 150 faces the light receiving of the first series battery pack 110 and the second series battery pack 120 The surface can be coated with reflective coating to increase light utilization. In addition, the solar cell module 100 can also be located between the cover 140 and the first series battery pack 110, between the first series battery pack 110 and the second series battery pack 120, and between the second series battery pack 120 and the back plate 150. A transparent insulating layer 160 is provided therebetween. The transparent insulating layer 160 can be used to electrically isolate the first series battery pack 110 and the second series battery pack 120, and protect the first series battery pack 110 and the second series battery pack 120 from water. Oxygen corrodes and can combine the layers to form a strong and durable solar cell module 100. In this embodiment, the transparent insulating layer 160 may be made of a material including ethylene-vinyl acetate (EVA), but it is not used to limit the disclosure.

FIG. 6 is a top view of the first series cell layer 210a according to an embodiment of the present disclosure. FIG. 7 is a top view of the second series battery layer 220a according to an embodiment of the present disclosure. Referring to FIG. 6, in this embodiment, the number of the first series battery pack 110 may be plural, and they are arranged in parallel along the second direction, and the first solar cells 112 in the adjacent first series battery pack 110 are staggered. Arranged to further form a first series battery layer 210a. Similarly, referring to Figure 7, the number of the second series battery packs 120 can be plural, and they are arranged in parallel along the second direction. The second solar cells 122 in the adjacent second series battery packs 120 are arranged alternately, and further A second series cell layer 220a is formed. The second direction referred to here is the length L1 (or length L2) direction of the first solar cell 112 (or the second solar cell 122), that is, the second direction and the first direction are two directions perpendicular to each other.

Referring to FIGS. 6 and 7 at the same time, in this embodiment, the number of first solar cells 112 in the first series cell layer 210a is equal to the number of the second series cell layer 210a. The number of the second solar cells 122 in the pool layer 220a should be an odd number, and the number of the first solar cells 112 and the number of the second solar cells 122 should remain the same. In this way, the first series battery layer 210a and the second series battery layer 220a can have the same voltage, so that the parallel connection of the first series battery layer 210a and the second series battery layer 220a will not cause a voltage difference. The solar cell module 100 cannot operate smoothly.

FIG. 8 is a top view of the solar cell module 100c obtained by connecting the first series cell layer 210a of FIG. 6 and the second series cell layer 220a of FIG. 7 in parallel. As shown in Figure 8, the first solar cell 112 in the solar cell module 100c is exposed from the second gap 123 (as shown in Figure 7), and from the top view angle, the first solar cell 112 and the second solar cell 112 The batteries 122 are closely arranged with each other. In addition, from the top viewing angle, if one of the first solar cells 112 is the center, the front, back, left, and right directions are the second solar cells 122; in the same way, if one of the second solar cells is used 122 is the center, and the front, back, left, and right directions are the first solar cells 112.

Specifically, in order to maintain the number of first solar cells 112 in the first series cell layer 210a and the number of second solar cells 122 in the second series cell layer 220a to be odd numbers, respectively, and to make the number of first solar cells 112 equal to The number of the second solar cells 122 is the same, and the number of the first solar cells 112 in the adjacent first series battery pack 110 should be n and (n+1) respectively (n is a positive integer), and in the vertical direction The number of second solar cells 122 corresponding to the above should be (n+1) and n respectively. By arranging in this way, the solar cell module 100c as shown in Fig. 8 can be formed.

Figure 9 illustrates the first series circuit according to an embodiment of the present disclosure Top view of pool layer 210b. FIG. 10 is a top view of the second series battery layer 220b according to an embodiment of the present disclosure. Referring to FIG. 9, in this embodiment, the number of the first series battery pack 110 can be plural, and they are arranged in parallel along the second direction (that is, the length L1 direction of the first solar cell 112) in the horizontal direction, so that The first solar cells 112 in the adjacent first series battery pack 110 are arranged in parallel to each other, further forming a first series battery layer 210b. Similarly, referring to Figure 10, the number of the second series battery packs 120 can be plural, and they are arranged in parallel along the second direction (that is, the length L2 direction of the second solar cell 122) in the horizontal direction, so that adjacent The second solar cells 122 in the second series battery group 120 are arranged in parallel to each other, further forming a second series battery layer 220b.

Referring to FIGS. 9 and 10 at the same time, in this embodiment, the number of first solar cells 112 in the first series cell layer 210b and the number of second solar cells 122 in the second series cell layer 220b should both be an even number. And the number of first solar cells 112 in the first series cell layer 210b and the number of second solar cells 122 in the second series cell layer 220b should remain the same. In this way, the first series battery layer 210b and the second series battery layer 220b can have the same voltage, so that the parallel connection of the first series battery layer 210b and the second series battery layer 220b will not cause a voltage difference. The solar cell module 100 cannot operate smoothly.

FIG. 11 is a top view of a solar cell module 100d obtained by connecting the first series battery layer 210b of FIG. 9 and the second series battery layer 220b of FIG. 10 in parallel. As shown in Fig. 11, the first solar cell 112 in the solar cell module 100d is exposed from the second gap 123 (as shown in Fig. 8), and from the top view angle, the first solar cell 112 and the second solar cell 112 The batteries 122 are closely arranged Column. In addition, from the top viewing angle, if one of the first solar cells 112 is taken as the center, the front and rear directions are both the second solar cell 122, and the left and right directions are both the first solar cell 112. ; Similarly, if one of the second solar cells 122 is the center, the front and rear directions are the first solar cells 112, and the left and right directions are the second solar cells 122.

Specifically, in order to maintain the number of first solar cells 112 in the first series cell layer 210b and the number of second solar cells 122 in the second series cell layer 220b to be even numbers, respectively, and to make the number of first solar cells 112 equal to The number of the second solar cells 122 is the same. The number of the first solar cells 112 in the adjacent first series battery group 110 should be m (m is a positive integer), and the second solar cell 112 corresponds to the second in the vertical direction. The number of solar cells 122 should also be m. By arranging in this way, the solar cell module 100d as shown in Fig. 11 can be formed.

Referring to FIGS. 8 and 11 at the same time, as described above, the bus line 130 in the solar cell module 100c can sink the current of the first series cell layer 210a and the second series cell layer 220a, and the solar cell module 100d The bus line 130 in can flow the current of the first series battery layer 210b and the second series battery layer 220b. Specifically, the confluence referred to here includes a variety of different circuit connection modes (such as series, parallel, parallel after series, series after parallel, or a combination thereof, etc.), that is, the confluence line 130 can converge each series in various ways The current of the battery layer is illustrated here with Figures 6 to 8 as examples.

For example, referring to FIGS. 6 and 7 at the same time, when the adjacent first series battery packs 110 in the first series battery layer 210a are connected in series When electrically connected, and adjacent second series battery packs 120 in the second series battery layer 220a are also electrically connected in series, the bus line 130 can connect the first series battery layer 210a with the second series battery layer. 220a are further connected in parallel to form the solar cell module 100c as shown in FIG. 8. Conversely, when the adjacent first series battery packs 110 in the first series battery layer 210a are electrically connected in parallel, and the adjacent second series battery packs 120 in the second series battery layer 220a are also electrically connected in parallel. When electrically connected in parallel, the bus line 130 can further connect the first series cell layer 210a and the second series cell layer 220a in series to form the solar cell module 100c as shown in FIG. 8. Referring to FIGS. 6 and 7 at the same time, in addition to the two circuit connection methods described above, the bus line 130 can also electrically connect the first series battery layer 210a and the second series battery layer 220a in other ways. For example, two adjacent first series battery packs 110 on the left side of the first series battery layer 210a and two adjacent second series battery packs 120 on the left side of the second series battery layer 220a can be connected in series. The two adjacent first series battery packs 110 on the right side of the first series battery layer 210a and the two adjacent first series battery packs 120 on the right side of the second series battery layer 220a are electrically connected. Electrical connection in series. Subsequently, the first series battery layer 210a and the second series battery layer 220a on the left side in series and the first series battery layer 210a and the second series battery layer 220a on the right side are further connected in parallel by the bus line 130 to form a The solar cell module 100c shown in Figure 8. However, the present disclosure is not limited to the above, and the bus line 130 can flow the current of each battery layer in series in any suitable manner.

According to the above-mentioned embodiment of the present disclosure, the second solar cell 122 is placed above the first solar cell 112, and the first solar cell 112 has There is a first gap 113 and the second solar cells 122 have a second gap 123 between them, and the first solar cells 112 are exposed from the second gaps 123 respectively, so that the first solar cells 112 can receive light from the second gaps 123 respectively. With such a double-layer structure, the first solar cell 112 and the second solar cell 122 in the top view angle are adjacent to each other, and the first solar cell 112 and the second solar cell 122 in the side view angle are present Staggered state. In this way, although on the side of the solar cell modules 100, 100a, 100b, 100c, and 100d facing the sun light source (the side presented from the top view), it can be seen that the first solar cell 112 and the second solar cell 122 are close to each other. However, in fact, the first solar cell 112 and the second solar cell 122 are in a staggered relationship with each other. Therefore, there is no need to worry about the short circuit between the first solar cell 112 and the second solar cell 122 due to the close distance. In addition, because the solar cell modules 100, 100a, 100b, 100c, and 100d formed with this structure do not have to consider the factor of the horizontal distance between the solar cells, more solar cells can be installed per unit area, effectively increasing the solar cell module Light-receiving area and effective power generation area in groups 100, 100a, 100b, 100c, 100d.

FIG. 12 is a top view of a solar cell module 100e according to another embodiment of the present disclosure. Fig. 13 shows a side view of the solar cell module 100e of Fig. 12. Referring to FIGS. 12 and 13 at the same time, in another embodiment of the present disclosure, the solar cell module 100e may include a back plate 150 and a plurality of battery layers 230 in series and parallel. The series-parallel battery layer 230 is placed above the back plate 150. Similar to the foregoing embodiment, each series-parallel battery layer 230 includes a plurality of series-connected battery packs 240 (only one series-connected battery pack 240 is shown in FIGS. 12 and 13). Each series battery 240 includes a plurality of solar cells 242 and series solar cells A plurality of lead groups 250 of the battery 242 can be used. The solar cells 242 in each series battery group 240 are arranged along the width W direction of the solar cells 242, and the ratio of the length L to the width W of the solar cells 242 is greater than or equal to 2 and less than or equal to 6.

It should be understood that in addition to being electrically connected to each other in series, the series-connected battery packs 240 on the same layer can also be electrically connected to each other in parallel or a combination of series and parallel. Therefore, in this embodiment, the term "series-parallel battery layer" refers to a battery layer formed by electrically connecting the series battery packs 240 of the same layer to each other by any suitable method.

Specifically, the solar cell module 100e is different from the solar cell modules 100-100d in the number of battery layers 230 in series and parallel. In this embodiment, the number of battery layers 230 in series and parallel connections may be greater than 2, that is, in addition to the double-layer structure in the above embodiment, the multilayer structure in this embodiment may also be included. For example, referring to FIGS. 12 and 13, FIGS. 12 and 13 respectively show a top view and a side view of a solar cell module 100e when the number of battery layers 230 in series and parallel connections is three. It should be understood that the number of series and parallel battery layers 230 is not limited to 3, and the designer can adjust the number of series and parallel battery layers 230 configured according to actual needs.

In this embodiment, each wire group 250 includes a plurality of wires 252 arranged in parallel along the length L direction of the solar cell 242, and the number of wires 252 in each wire group 250 is 2 to 20, but not limited to This is a limit, and the number can be determined according to the needs of the designer. In addition, the solar cell module 100e further includes a bus line 130. The bus line 130 is disposed at one end of the solar cell module 100e and is connected to the wire group 250 at the end of each series-parallel cell layer 230. As in the above embodiment, the bus line 130 can converge each series and parallel The current of the battery layer 230 is further electrically connected to other electronic devices. In addition, the bus line 130 can flow the current of each series-parallel battery layer 230 in any suitable manner.

As shown in Figure 13, the solar cell module 100e can also be provided with a transparent layer between the cover 140 and the series-parallel battery layer 230, between each series-parallel battery layer 230, and between the series-parallel battery layer 230 and the back plate 150. The insulating layer 160 and the transparent insulating layer 160 can be used to electrically isolate each series-parallel battery layer 230 and protect the solar cell module 100e from water and oxygen corrosion, and can be combined to form a strong and durable solar cell module 100e. In this embodiment, the transparent insulating layer 160 may be made of a material including ethylene-vinyl acetate (EVA), but it is not used to limit the disclosure.

The connection relationships, materials, and functions of the remaining components in the solar cell module 100e are the same as the above-mentioned solar cell modules 100 to 100d, and therefore will not be repeated.

As shown in FIG. 13, in this embodiment, the series-parallel battery layer 230 includes a top series battery layer 230a, a middle series battery layer 230b, and a bottom series battery layer 230c. There are a plurality of gaps 243a between the solar cells 242a in the top series cell layer 230a; there are a plurality of gaps 243b between the solar cells 242b in the middle series cell layer 230b; and the solar cells 242c in the bottom series cell layer 230c have A plurality of gaps 243c. The solar cell 242b is exposed from the gap 243a, and the solar cell 242c is exposed from the gaps 243a, 243b. That is, the solar cell 242b can receive light from the gap 243a, and the solar cell 242c can receive light from the gaps 243a, 243b. In this embodiment, the solar cells 242a, 242b, 242c have approximately the same width W, In addition, the distance between the solar cells 240 in the same series-parallel battery layer 230 (that is, the width of the gaps 243a, 243b, and 243c) is approximately twice the width W of the solar cell 240. However, the arrangement relationship and distance between each solar cell 242 in each series-parallel battery layer 230 are not limited to the arrangement shown in FIG. 12 and FIG. 13, and the designer can adjust it according to actual needs. In addition, when the number of series-parallel battery layers 230 is greater than 3, the arrangement relationship between each solar cell 242 in each series-parallel battery layer 230 may also contain many possibilities, which are not to limit the disclosure.

As shown in Figure 13, in the solar cell module 100e, the vertical projection of the solar cell 242a in the top series cell layer 230a on the back plate 150 is P1, the solar cell 242b in the middle series cell layer 230b is on the back plate 150 The vertical projection on the top is P2, and the vertical projection of the solar cell 242c in the bottom series battery layer 230c on the back plate 150 is P3. In this embodiment, the projections P1, P2, and P3 do not overlap or partially overlap each other. Specifically, the projections P1, P2, and P3 do not overlap regardless of whether they are viewed from the bottom view angle (that is, the side of the solar cell module 100e facing away from the solar light source) or the side view angle (that is, the viewing angle in FIG. 13). That is to say, if viewed from the top view angle (that is, the side of the solar cell module 100e facing the solar light source), each series and parallel battery layer 230 (in this embodiment, the top series battery layer 230a, the middle Each solar cell 242 (in this embodiment, solar cells 242a, 242b, 242c) in the series cell layer 230b and the bottom series cell layer 230c), in this way, each solar cell module 100e can be secured The solar cells 242 can receive sunlight to achieve the purpose of effective use of sunlight.

According to the above-mentioned embodiments of the present disclosure, the double The layer structure makes the first solar cell and the second solar cell adjacent to the top view angle, while the first solar cell and the second solar cell are staggered up and down from the side view angle, so there is no need to worry The short circuit between the first solar cell and the second solar cell is caused by the short distance. In addition, the solar cell module formed with this structure can provide more solar cells per unit area, effectively increasing the light-receiving area and effective power generation area in the solar cell module. In addition, in addition to the above-mentioned double-layer structure, the solar cell module of the present disclosure can also be a multilayer structure. In the multi-layer structure, the vertical projections of each solar cell in each series cell layer on the backplane do not overlap or partially overlap each other, so it can ensure that each solar cell in the solar cell module can receive sunlight. To achieve the purpose of effective use of sunlight.

Although this disclosure has been disclosed in the above implementation manner, it is not intended to limit this disclosure. Anyone who is familiar with this technique can make various changes and modifications without departing from the spirit and scope of this disclosure. Therefore, this disclosure is protected The scope shall be subject to those defined in the attached patent scope.

110‧‧‧First series battery pack

112‧‧‧The first solar cell

113‧‧‧First gap

114‧‧‧The first wire group

120‧‧‧Second series battery pack

122‧‧‧Second solar cell

123‧‧‧Second gap

124‧‧‧Second wire group

Claims (15)

A solar cell module includes: at least one first series battery pack, including: a plurality of first solar cells arranged along a first direction, wherein there are a plurality of first gaps between the first solar cells, and each The ratio of the length to the width of the first solar cells is greater than or equal to 2 and less than or equal to 6; and a plurality of first wire groups are connected in series with the first solar cells; and at least one second battery group in series is placed in the first Above a series battery pack, it includes: a plurality of second solar cells arranged along the first direction, wherein there are a plurality of second gaps between the second solar cells, so that the first solar cells are separated from the first solar cells. Two gaps receive light, and the ratio of the length to the width of each of the second solar cells is greater than or equal to 2 and less than or equal to 6; and a plurality of second wire groups are connected in series with the second solar cells. The solar cell module according to claim 1, wherein the first direction is a width direction of each of the first solar cells. The solar cell module according to claim 1, wherein the distances of the first gaps are approximately equal to the widths of the second solar cells, and the distances of the second gaps are approximately equal to the widths of the first solar cells. width degree. The solar cell module according to claim 1, wherein each of the first wire groups includes a plurality of first wires arranged in parallel, and each of the second wire groups includes a plurality of second wires arranged in parallel. The solar cell module according to claim 4, wherein the number of the first wires in each of the first wire groups and the number of the second wires in each of the second wire groups are respectively 2 to 20 articles. The solar cell module according to claim 1, further comprising a bus line for electrically connecting the first series battery pack and the second series battery pack. The solar cell module according to claim 1, wherein the number of the at least one first series battery pack is plural, and the number of the at least one second series battery pack is plural, and the number of the first solar cells The number is the same as the number of the second solar cells. The solar cell module according to claim 6, wherein the number of the first solar cells is an odd number, and the first solar cells in each of the adjacent first series battery groups are staggered, and The second solar cells in each of the adjacent second series battery groups are arranged alternately. The solar cell module according to claim 6, wherein the number of the first solar cells is an even number, and the first solar cells in each of the adjacent first series battery groups are arranged in parallel, and The second solar cells in each of the adjacent second series battery groups are arranged in parallel. The solar cell module according to claim 1, further comprising an insulating layer located between the first series battery pack and the second series battery pack to electrically insulate the first series battery pack and the second series battery pack Battery. A solar cell module includes: a backplane; and a plurality of series and parallel battery layers placed above the backplane, and each of the series and parallel battery layers includes: a plurality of series battery packs, each of the series batteries The group includes a plurality of solar cells and a plurality of wire groups connected in series with the solar cells, wherein the ratio of the length to the width of each of the solar cells is greater than or equal to 2 and less than or equal to 6, and the solar cells in the series of battery layers The vertical projections of the batteries on the backplane do not overlap or partially overlap each other. The solar cell module according to claim 11, wherein the solar cells in each of the series battery packs are arranged along the width direction of the solar cells. The solar cell module according to claim 11, wherein Each of the wire groups includes a plurality of wires arranged in parallel, and the number of the wires in each of the wire groups is 2 to 20. The solar cell module of claim 11 further includes a bus line for electrically connecting the series cell layers. The solar cell module according to claim 11 further includes a plurality of insulating layers respectively located between the series battery layers to electrically insulate the series battery layers.

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