TW201813281A - Photoelectric conversion device - Google Patents

Abstract

The purpose of the present invention is to make it possible for a photoelectric conversion device to comprise more photoelectric conversion panels and to stabilize the positional relationship among connected photoelectric conversion panels. The present invention enables the achievement of a photoelectric conversion device which comprises: a photoelectric conversion panel having one or more plate-like photoelectric conversion modules; and a connection part which comprises a flexible conductive member and is capable of mechanically and electrically joining the photoelectric conversion modules and an add-in photoelectric conversion module of an add-in photoelectric conversion panel with each other in a detachable manner. With respect to this photoelectric conversion device, if D1 is the thickness of the conductive member and W1 is the width of the conductive member in a direction that is perpendicular to both the connecting direction and the thickness direction of the conductive member, D1 and W1 satisfy the relational expression W1 ≥ 3D1.

Description

   Photoelectric conversion device   

The invention relates to a photoelectric conversion device

In recent years, in response to increasing demand for environmental power generation devices that generate electricity from the external environment, it is desired that users can use portable devices such as smartphones, personal computers, and tablet computers even when they are out of town without a commercial power source.

As a portable power generation device, for example, Patent Document 1 discloses a photoelectric conversion device having a sheet-like solar cell. This sheet-like solar cell is sandwiched from above and below by a sheet-like transparent film member having flexibility and stretchability. A plurality of solar battery cells arranged at a predetermined interval and a flexible conductive member connected to the electrodes of each solar battery cell are configured. According to such a photoelectric conversion device, a sheet-shaped solar cell is spread out during use, and the power generated by the solar cell can be taken out and used by an external device. Moreover, when not in use, the sheet-shaped solar cell can be folded, and it is easy to store and transport.

In addition, for example, Patent Document 2 discloses a solar power generation device (photoelectric conversion device), in which a solar cell panel is connected to an extension solar panel through a cable, thereby enabling the addition of a solar cell panel. According to such a photoelectric conversion device, it is possible to add a solar cell panel as needed, and to increase power supply power.

Advance technical literature

Patent Document 1: Japanese Patent Application Laid-Open No. 9-51118

Patent Document 2: Japanese Patent Application Laid-Open No. 2003-92423

The photoelectric conversion device disclosed in Patent Document 1 tends to be miniaturized in order to ensure portability, and there may be a case where a single unit cannot provide sufficient power. In addition, although the photoelectric conversion device disclosed in Patent Document 2 can increase the power supply by adding a solar cell panel (photoelectric conversion panel), the photoelectric conversion panels are connected by cables. The positional relationship is unstable, and there is still room for improvement in usability.

Therefore, an object of the present invention is to provide a photoelectric conversion device capable of solving the above-mentioned problems, adding a photoelectric conversion panel, and stabilizing a positional relationship between the photoelectric conversion panels.

An object of the present invention is to effectively solve the above-mentioned problems. The photoelectric conversion device of the present invention includes a photoelectric conversion panel having one or more plate-shaped photoelectric conversion modules, a connecting portion including a flexible conductive member, and The photoelectric conversion module and the additional photoelectric conversion module of the additional photoelectric conversion panel can be mechanically and electrically attached and detached. Assuming that the thickness of the conductive member is D ₁ , the connection direction and thickness direction of the conductive member are along. If the width in the vertical direction of both sides is W ₁ , then the relationship of W ₁ ≧ 3D ₁ is satisfied. With such a structure, a photoelectric conversion panel can be added, and the positional relationship between the connected photoelectric conversion panels can be stabilized.

Here, in the photoelectric conversion device of the present invention, assuming that the width in the vertical direction along both the connection direction and the thickness direction of the photoelectric conversion module is W ₂ , it is better to satisfy the relationship of W ₂ ≧ W ₁ . With such a structure, since the conductive member is not larger than the photoelectric conversion module in the width direction, the usability of the connection portion is improved.

In addition, in the photoelectric conversion device of the present invention, assuming that the thickness of the photoelectric conversion module is D ₂ , the relationship of D ₂ ≧ D ₁ is preferably satisfied. With such a structure, since the conductive member is not larger than the photoelectric conversion module in the thickness direction, the usability of the connection portion is improved.

In the photoelectric conversion device of the present invention, assuming that the length along the connection direction of the conductive member is L ₁ , the relationship of W ₁ ≧ L ₁ is preferably satisfied. With such a structure, deformation is unlikely to occur between the photoelectric conversion panel and the additional photoelectric conversion panel, and stability is improved.

In the photoelectric conversion device of the present invention, the connection portion includes a first connection member provided on the photoelectric conversion panel, and a second connection member provided on the additional photoelectric conversion panel, the first connection member, and the second connection member. The connecting members are detachable from each other. The conductive member is preferably disposed between the photoelectric conversion panel and the first connection member, and / or between the additional photoelectric conversion panel and the second member. With such a structure, even when no additional photoelectric conversion panel is added to the photoelectric conversion device, it is not necessary to separately manage the connection portion, and the usability is improved.

Moreover, in the photoelectric conversion device of the present invention, one of the first connection member and the second connection member has a guide rail, and the other has a guide member, which can be opposed to each other in a direction different from the connection direction. It is better that the guide rail slides and engages. With such a structure, since the direction in which the first connection member and the second connection member are detached and connected are different from each other, the stress applied to the photoelectric conversion device during detachment can be reduced.

In the photoelectric conversion device of the present invention, it is preferable that the connection portion further includes a reinforcing member directly coupled to at least one of the first connection member and the second connection member. With such a structure, the first connection member and the second connection member can be reinforced, and at the same time, the stability when the photoelectric conversion module and the additional photoelectric conversion module are attached and detached through the connection portion can be improved.

In the photoelectric conversion device of the present invention, the connection portion includes a third connection member provided on the photoelectric conversion panel and the additional photoelectric conversion panel, respectively, and an additional connection body. The additional connection body includes: a first conductive member as the conductive member; and a fourth connection member provided on both sides of the first conductive member, respectively, and preferably attachable and detachable to the third connection member. With such a structure, when no additional photoelectric conversion panel is added, the additional connector can be connected to only the photoelectric conversion panel, only to the additional photoelectric conversion panel, or separately managed from both. It is also easy to replace the additional connecting body with a new one.

In the photoelectric conversion device of the present invention, it is preferable that the additional connecting body further includes a reinforcing member directly coupled to the fourth connecting member. With this structure, the fourth connection member can be reinforced, and at the same time, the stability when the photoelectric conversion module and the additional photoelectric conversion module are attached and detached through the connection portion can be improved.

The photoelectric conversion device of the present invention further includes a second conductive member as the conductive member. Among the third connection members, a third connection member provided in the photoelectric conversion panel, the photoelectric conversion module disposed along the outer periphery of the photoelectric conversion panel through the second conductive member and disposed in the photoelectric conversion module is good. With such a structure, the flexibility of the connection portion can be improved.

Moreover, in the photoelectric conversion device of the present invention, the photoelectric conversion modules are arranged in a matrix, and a third connecting member provided on the photoelectric conversion panel among the third connecting members is provided on the photoelectric through the second conductive member Among the conversion modules, the photoelectric conversion modules arranged at the end in the row direction and the end in the column direction are preferred. With such a structure, the photoelectric conversion panel and the additional photoelectric conversion panel can be arranged neatly.

In the photoelectric conversion module of the present invention, it is preferable that the third connection members are not connected to each other. With such a structure, it is possible to connect the third connection members only when an additional connection body is used, and thus it is possible to prevent the third connection portions from being inadvertently connected.

Further, in the photoelectric conversion module of the present invention, the additional connection body moves the fourth connection member with respect to the two opposite third connection members in a direction perpendicular to the opposite direction. The third connecting member is preferably detachable. With such a structure, the stability of the connection can be improved with respect to an external force applied to the connection portion.

In addition, the photoelectric conversion module of the present invention further includes a circuit portion, and the fourth connection member is preferably included. With such a structure, the circuit portion can be connected to the third connection member that is not used in the connection of the photoelectric conversion panel or the additional photoelectric conversion panel, and therefore, the degree of freedom in disposing the circuit portion can be improved.

Further, in the photoelectric conversion module of the present invention, it is preferable that the connection portion can attach and detach the photoelectric conversion panel and the additional photoelectric conversion panel in a row direction and / or a column direction. With such a structure, usability is further improved.

In the photoelectric conversion module of the present invention, the photoelectric conversion panel and the additional photoelectric conversion panel can be folded through the connection portion. With such a structure, the storageability is improved.

In addition, the photoelectric conversion module of the present invention further includes a supplementary connection section capable of mechanically connecting the photoelectric conversion module and the additional photoelectric conversion module. With such a structure, the photoelectric conversion module and the additional photoelectric conversion module can be more stably connected.

According to the present invention, a photoelectric conversion device can be provided. This photoelectric conversion device can be provided with a photoelectric conversion panel, and the positional relationship between the photoelectric conversion panels can be stabilized.

1‧‧‧photoelectric conversion device

10‧‧‧ photoelectric conversion panel

11, 11a ~ 11i‧‧‧ photoelectric conversion module

12‧‧‧ Connection Department

20, 20a, 20b ‧‧‧ Connection

21, 21a, 21b ‧‧‧ conductive members

21’‧‧‧The first conductive member

21 ”‧‧‧The second conductive member

22, 22a, 22b ‧‧‧ the first connection member

23, 23a, 23b‧‧‧ 2nd connecting member

24‧‧‧3rd connection member

25‧‧‧The fourth connection member

26, 26a, 26b ‧‧‧ Reinforcing members

27‧‧‧ guide rail

28‧‧‧Guide members

30‧‧‧ Extension connector

40‧‧‧Circuit Department

50, 50a, 50b, 50c ‧‧‧ Extension photoelectric conversion panel

51、51a ~ 51i‧‧‧Added photoelectric conversion module

52‧‧‧ Extension connection

60‧‧‧ Extension connection

S, S’‧‧‧ Hollow Section

D ₁ ‧‧‧Thickness of conductive member

D ₂ ‧‧‧Thickness of photoelectric conversion module

L ₁ ‧‧‧ Length of conductive member

W ₁ ‧‧‧Width of conductive member

W ₂ ‧‧‧Width of photoelectric conversion module

FIG. 1 is a top view showing a schematic structure of a photoelectric conversion device according to an embodiment of the present invention.

Fig. 2 is a front view showing a schematic structure of the photoelectric conversion device shown in Fig. 1.

FIG. 3 is a top view showing an enlarged structure of a part of the photoelectric conversion device shown in FIG. 1.

FIG. 4 is an enlarged front view showing a part of the structure of the photoelectric conversion device shown in FIG. 1.

FIG. 5 is a schematic view (part 1) of a folded photoelectric conversion device.

Fig. 6 is a schematic view showing a state of a folded photoelectric conversion device (part 2).

FIG. 7 is a top view showing an example of another addition direction of the photoelectric conversion device shown in FIG. 1.

FIG. 8 is a top view showing an example in which the additional photoelectric conversion panels are arranged in rows and columns to the photoelectric conversion device shown in FIG. 1.

Fig. 9 is a top view showing a third modification of the connecting portion.

Fig. 10 is a top view showing a modification of the photoelectric conversion panel.

Fig. 11 is a top view showing a second modified example of the connecting portion.

Fig. 12 is a top view showing a third modification of the connecting portion.

FIG. 13 is a top view showing an example (part one) of the addition of a photoelectric conversion device including the connection portion shown in FIG. 12.

Fig. 14 is a top view showing an example (part 2) of an addition of a photoelectric conversion device including a connection portion shown in Fig. 12.

FIG. 15 is a top view showing an example (No. 3) of the addition of a photoelectric conversion device including the connection portion shown in FIG. 12.

Fig. 16 is a top view showing an example (No. 4) of the addition of a photoelectric conversion device having a connection portion shown in Fig. 12;

Fig. 17 is a top view showing an example (No. 5) of the addition of a photoelectric conversion device including the connection portion shown in Fig. 12.

FIG. 18 is a top view showing an example (No. 6) of the addition of a photoelectric conversion device including the connection portion shown in FIG. 12.

Hereinafter, embodiments of the present invention will be described. In addition, in this specification, the thickness direction refers to a direction perpendicular to the paper surface of the top view of the photoelectric conversion device such as FIG. It means the opposite direction. The horizontal plane direction is a plane direction perpendicular to the thickness direction.

Hereinafter, a photoelectric conversion device 1 according to an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a top view of a photoelectric conversion device according to an embodiment of the present invention, and FIG. 2 is a front view.

As shown in FIGS. 1 and 2, the photoelectric conversion device 1 includes a photoelectric conversion panel 10, a connection portion 20, and a circuit portion 40. In addition, FIGS. 1 and 2 also show an extension photoelectric conversion panel that can be added to the photoelectric conversion device 1.

The photoelectric conversion panel 10 includes a plate-shaped photoelectric conversion module 11 (11a to 11i). Here, the plate shape means that it has a relatively large shape in a horizontal plane direction perpendicular to the thickness direction compared to the thickness direction. The number of the photoelectric conversion modules 11 included in the photoelectric conversion panel 10 is exemplified by nine in the first figure, but one or more may be sufficient. When the photoelectric conversion panel 10 has a plurality of photoelectric conversion modules 11, the photoelectric conversion panel 10 has a connection portion 12 connecting the outer edge portions between the photoelectric conversion modules 11, and the photoelectric conversion modules 11 are mechanically connected to each other through the connection portion 12. And is electrically connected to the horizontal plane. Although the example in which the photoelectric conversion modules 11 are arranged in a matrix is shown in FIG. 1, the arrangement is not limited to this.

The top view of the photoelectric conversion module 11 in this example is rectangular. The thickness of the photoelectric conversion module 11 is preferably 3 mm or less in consideration of the manufacturing technology. The lower limit of the thickness of the photoelectric conversion module 11 is preferably about 10 μm. In order to impart environmental resistance to the photoelectric conversion module 11, it can be covered with an exterior material. The photoelectric conversion module 11 preferably has a certain degree of flexibility. The photoelectric conversion module 11 preferably covers the outer periphery with a frame of a rigid member. Accordingly, it is possible to suppress flexure and deformation of the photoelectric conversion module 11 due to the stress generated by the connection portion 12.

The photoelectric conversion module 11 includes a photoelectric conversion unit (not shown) provided to be capable of receiving incident light from above. The photoelectric conversion unit is a solar cell element that converts incident light such as sunlight, indoor light, and the like into electric power output. The photoelectric conversion module 11 further includes a base material (not shown) for supporting the photoelectric conversion unit, and a take-out wiring (not shown) for taking out electric power generated by the photoelectric conversion unit. The photoelectric conversion module 11 transmits electric power generated by the photoelectric conversion unit to the circuit portion 40 through the connection portion 12 or other photoelectric conversion modules 11. In addition, the photoelectric conversion unit provided in the photoelectric conversion module 11 may be provided in a direction other than the upper direction, and for example, it may be provided so that it can receive incident light from below.

The types of solar cells constituting the photoelectric conversion unit are roughly classified into an inorganic type using an inorganic material and an organic type using an organic material. Inorganic solar cells include Si-based Si, compounds using compounds, and the like. Organic solar cells include thin-film vapor deposition using organic pigments, polymer coatings using conductive polymers, and thin-film coatings using conversion semiconductors. They are composed of titanium, organic pigments, and electrolytes. Pigment sensitization and so on. The solar cells constituting the photoelectric conversion unit include organic-inorganic hybrid solar cells, solar cells using perovskite-based compounds, and the like. As the photoelectric conversion unit of this embodiment, a dye-sensitized solar cell made of a plastic film or the like is more suitable. However, the photoelectric conversion unit of this embodiment mode is not limited to the above-mentioned manufacturing of a plastic film, and the method is not limited as long as it is also thin.

The connecting portion 12 connects the photoelectric conversion modules 11 in the row direction and the column direction in this example. Specifically, the connecting portion 12 includes a flexible conductive member (for example, a conductive cable or an elastic substrate), and mechanically and electrically connects the photoelectric conversion modules 11 in the row direction and the column direction. The connection portion 12 may include a covering member for protection and / or reinforcement. In addition, the connecting portion 12 may be formed of a flexible member, and any adjacent photoelectric conversion modules 11 may be mechanically connected but not electrically connected.

The connecting portion 12 is configured to fold the photoelectric conversion module 11 capable of being connected together through the connecting portion 12. From the standpoint of ease of folding, the connecting portion 12 is more flexible than the photoelectric conversion module 11.

The connection portion 20 includes a flexible conductive member 21, a first connection member 22, a second connection member 23, and a reinforcing member 26. The connection portion 20 is a member capable of mechanically and electrically attaching and detaching one photoelectric conversion module 11 in the photoelectric conversion panel 10 and one additional photoelectric conversion module 51 in the additional photoelectric conversion panel 50. For example, FIG. 1 and FIG. 2 show that the connection portion 20 includes a connection portion 20a capable of mechanically and electrically attaching and detaching the photoelectric conversion module 11c and the additional photoelectric conversion module 51a, and the photoelectric conversion module 11i and an extension The photoelectric conversion module 51g is a mechanically and electrically connected connection portion 20b.

The first connection member 22 is provided in one photoelectric conversion module 11 in the photoelectric conversion panel 10. The second connection member 23 is provided in one of the additional photoelectric conversion modules 51 among the additional photoelectric conversion panels 50. Here, the first connection member 22 and the second connection member 23 are detachable from each other. The attachment and detachment mechanism between the first connection member 22 and the second connection member 23 is, for example, a mechanism in which one opening is inserted and fitted by the other to form a connected state, and the other is formed to be in an unconnected state when the other is discharged. At this time, the conductive member 21 is provided between one photoelectric conversion module 11 connected to the photoelectric conversion panel 10 and the first connection member 22, and / or one extension connected to the additional photoelectric conversion panel 50. Between the photoelectric conversion module 51 and the second connection member 23. For example, the connection portion 20a is provided with a conductive member 21a between the photoelectric conversion module 11c and the first connection member 22a. The connection portion 20b is provided with a conductive member 21a between the additional photoelectric conversion module 51g and the second connection member 23b.

In this manner, the conductive member 21 is provided between the photoelectric conversion module 11 and the first connection member 22, and / or is connected between the additional photoelectric conversion module 51 and the second connection member 23. When attaching and detaching the photoelectric conversion module 11 and the additional photoelectric conversion module 51 through the connection portion 20, the application should be reduced and finally the first connection member 22 or the second connection member 23 should be reduced. In addition, since the connecting portion 20 is configured by a member provided on the photoelectric conversion panel 10 and the additional photoelectric conversion panel 50, even when the additional photoelectric conversion panel 50 is not added to the photoelectric conversion device 1, it is unnecessary. In addition, the connection section 20 is managed, and the handling is improved.

The reinforcing member 26 is a rigid member, and is directly connected to at least one of the first connection member 22 and the second connection member 23. Specifically, the reinforcing member 26 is directly coupled to one of the first connection member 22 and the second connection member 23 provided with the conductive member 21. For example, FIGS. 1 and 2 show that the reinforcing member 26 has a reinforcing member 26a directly connected to the first connecting member 22a provided with the conductive member 21a, and a reinforcing member 26a directly connected to the second connecting member 23b provided with the conductive member 21b. Reinforcing member 26b. The reinforcing member 26 is provided so as to cover, for example, the first connection member 22 or the second connection member 23 and the conductive member 21.

As described above, the photoelectric conversion device 1 includes the reinforcing member 26 directly coupled to the first connecting member 22 or the second connecting member 23 provided with the conductive member 21, so that the first connecting member 22 or the second connecting member 23 can be reinforced, and At the same time, the stability when mounting the photoelectric conversion module 11 and the additional photoelectric conversion module 51 through the connecting portion 20 is improved. In addition, the reinforcing member 26 can also function as a holding portion, and is used to provide holding when an additional photoelectric conversion module 50 is to be added.

When the circuit unit 40 supplies power generated by the photoelectric conversion panel 10 or the additional photoelectric conversion panel 50, it increases or decreases the voltage, and then outputs it to, for example, an external rechargeable battery or an external device through an interface (not shown). . The circuit portion 40 is not limited to the shape shown in FIG. 1 and can be any shape. The circuit portion 40 and the photoelectric conversion panel 10 may be connected to each other by using the same connection portion as the connection portion 20 as shown in FIG. 1, or they may be integrally configured.

The photoelectric conversion device 1 may further include an auxiliary connection portion that mechanically connects one photoelectric conversion module 11 in the photoelectric conversion panel 10 and one of the additional photoelectric conversion modules 51 in the additional photoelectric conversion panel 50. Here, the auxiliary connection part capable of being mechanically connected means a connection part that can only be mechanically connected but not electrically connected. In the connection between the photoelectric conversion panel 10 and the extension photoelectric conversion panel 50 shown in FIG. 1, for example, any one of the connection portion 20 a and the connection portion 20 b can be used as an auxiliary connection portion. By providing such an auxiliary connection portion, the connection stability between the photoelectric conversion panel 10 and the extension photoelectric conversion panel 50 is improved.

The extension photoelectric conversion panel 50 includes a plate-like extension photoelectric conversion module 51 (51a to 51i). Although the number of the additional photoelectric conversion modules 51 included in the additional photoelectric conversion panel 50 is shown in FIG. 1 as an example, it may be one or more. When the additional photoelectric conversion panel 50 includes a plurality of additional photoelectric conversion modules 51, the additional photoelectric conversion panel 50 includes an additional connection portion 52, and the additional photoelectric conversion modules 51 are mechanically and electrically connected to each other through the additional connection portion 52. Sex is on a horizontal plane. Although the example in which the photoelectric conversion modules 51 are arranged in a matrix form is shown in FIG. 1, the arrangement is not limited to this.

FIG. 3 is an enlarged top view of a part of the structure including the connection portion 20 of the photoelectric conversion device 1 (the photoelectric conversion module 11 and the additional photoelectric conversion module 51 that can be attached to and detached from the connection portion 20). Figure 4 is a front view of the same figure. As shown in FIGS. 3 and 4, assuming that the thickness of the conductive member 21 is D ₁ and the direction perpendicular to the connection direction and thickness direction of the conductive member 21 (hereinafter simply referred to as the “width direction”) is W ₁ , then The relationship W ₁ ≧ 3D ₁ is satisfied. That is, the width W ₁ of the conductive member 21 is three times or more the thickness D ₁ . In this way, the width W _{1 of} the conductive member 21 is three times or more the thickness D ₁ , and in the state where the photoelectric conversion device 50 is added to the photoelectric conversion device 1, the flexibility of the conductive member 21 can be a certain degree. While maintaining the flexibility between the photoelectric conversion panel 10 and the additional photoelectric conversion panel 50, the integration between the photoelectric conversion panel 10 and the additional photoelectric conversion panel 50 is improved while improving the stability.

Furthermore, assuming that the width in the width direction of the photoelectric conversion module 11 is W ₂ , the relationship of W ₂ ≧ W ₁ is established. That is, by setting the width W _{1 of the} conductive member 21 to be smaller than the width W _{2 of the} photoelectric conversion module 11, the conductive member 21 does not become larger than the photoelectric conversion module 11 in the width direction, so the connection portion 20 Improved usability.

In addition, if the thickness of the photoelectric conversion module 11 is D ₂ , the relationship of D ₂ ≧ D ₁ will be established. That is, the thickness D _{1 of the} conductive member 21 is equal to or less than the thickness D _{2 of the} photoelectric conversion module 11. As described above, when the thickness D _{1 of the} conductive member 21 is equal to or smaller than the thickness D _{2 of the} photoelectric conversion module 11, the conductive member 21 does not become larger than the photoelectric conversion module 11 in the thickness direction, and thus the usability of the connection portion 20 is improved.

If the length along the connection direction of the conductive member 21 is L ₁ , the relationship of W ₁ ≧ L ₁ is established. That is, the width W _{1 of the} conductive member 21 is equal to or longer than the length L ₁ . In this way, by setting the width W _{1 of} the conductive member 21 to be longer than the length L ₁ , deformation and the like are unlikely to occur between the photoelectric conversion panel 10 and the extension photoelectric conversion panel 50, and stability is improved.

FIG. 5 is a schematic view showing a state in which the photoelectric conversion device 1 with the added photoelectric conversion panel 50 is folded (part one). FIG. 5 (a) is a front view before folding, and FIG. 5 (b) is a folding. Rear front view. As shown in FIG. 5 (a), the photoelectric conversion device 1 is provided with an additional photoelectric conversion panel 50 connected through the connection portion 20. In addition, Fig. 5 (a) shows an example in which a plurality of (two) extension photoelectric conversion panels 50 are connected through the extension connection portion 60. The extension connection portion 60 has a flexible conductive member and can be mechanically and electrically attached to and detached from the extension photoelectric conversion panel 50. For example, the extension connection portion 60 can have the same structure as the connection portion 20.

The folding of the connection portion 20 causes the photoelectric conversion panel 10 and the extension photoelectric conversion panel 50 to overlap, and as shown in FIG. 5 (b), a state where the photoelectric conversion panel 10 and the extension photoelectric conversion panel 50 overlap in the thickness direction is formed. In addition, Fig. 5 (b) shows an example in which the plurality of extension photoelectric conversion panels 50 are folded through the extension connection portion 60.

As described above, since the photoelectric conversion device 1 can fold the photoelectric conversion panel 10 and the additional photoelectric conversion panel 50 and overlap the additional photoelectric conversion panel 50 on the photoelectric conversion panel 10, the storage performance is improved. In addition, even when the plurality of additional photoelectric conversion panels 50 are added to the photoelectric conversion device 1, the plurality of additional electric conversion panels 50 can be folded through the additional connection portion 60 to improve the storageability.

FIG. 6 is a schematic view showing a state in which the photoelectric conversion device 1 with the added photoelectric conversion panel 50 is folded (second). FIG. 6 (a) is a front view before folding, and FIG. 6 (b) is a Front view of the folded state between the conversion modules 11. Fig. 6 (c) is a front view of the state where the photoelectric conversion panel 10 and the extension photoelectric conversion panel 50 are further folded from the state of Fig. 6 (b). In FIGS. 6 (b) and 6 (c), for the sake of simplification, illustrations of the connecting portion 12 and the additional connecting portion 52 are omitted.

As shown in FIG. 6 (a), the photoelectric conversion panels 10 constitute the photoelectric conversion modules 11 and are arranged in rows and columns, and adjacent photoelectric conversion modules 11 can be folded. Here, for example, the photoelectric conversion module 11 (11b, 11e, 11h) folded into the second column is first overlapped on the photoelectric conversion module 11 (11a, 11d, 11g) in the first column, and then folded into the third column The photoelectric conversion modules 11 (11c, 11f, 11i) are superimposed on them.

Next, the photoelectric conversion modules 11 (11d, 11e, 11f) folded in the second row are superimposed on the photoelectric conversion modules 11 (11a, 11b, 11c) in the first row, and then folded into the photoelectric conversion modules in the third row. Group 11 (11g, 11h, 11i) overlaps them. By such folding, as shown in FIG. 6 (b), the photoelectric conversion panel 10 forms a state in which all the photoelectric conversion modules 11 are overlapped in the thickness direction.

Here, as shown in FIG. 6 (a), the photoelectric conversion panel 50 for the extension can be configured in the same manner as the photoelectric conversion module 10, and the photoelectric conversion modules 51 can be arranged in rows and columns. Can be folded. In this case, for example, the additional photoelectric conversion module 51 (51b, 51e, 51h) folded into the second column is superimposed on the additional photoelectric conversion module 51 (51a, 51d, 51g) in the first column, and then The additional photoelectric conversion modules 51 (51c, 51f, 51i) folded into the third column are superimposed on them.

Next, the additional photoelectric conversion module 51 (51d, 51e, 51f) folded into the second line is superimposed on the additional photoelectric conversion module 51 (51a, 51b, 51c) in the first line, and then folded into the third line The additional photoelectric conversion modules 51 (51g, 51h, 51i) are added on top of them. By such folding, as shown in FIG. 6 (b), the addition of the photoelectric conversion panel 50 forms a state in which all the photoelectric conversion modules 51 are overlapped in the thickness direction.

Then, the folded extension photoelectric conversion panel 50 is superimposed on the folded photoelectric conversion panel 10 through the folding of the connection portion 20, and as shown in FIG. 6 (c), the folded photoelectric conversion panel 10 and the folded photoelectric conversion panel 10 are formed. The state where the additional photoelectric conversion panel 50 is overlapped. In this manner, by folding the folded photoelectric conversion panel 10 and the folded extension photoelectric conversion panel 50 further, the storageability is further improved.

In addition, the connection portion 20 can attach and detach the photoelectric conversion panel 10 and the additional photoelectric conversion panel 50 in the row direction and / or the column direction. Specifically, any one of the connection portions 20a and 20b shown in FIGS. 1 and 2 can attach and detach the photoelectric conversion panel 10 and the additional photoelectric conversion panel 50 in the row direction, as shown in FIG. 7, The connection portion 20 may attach and detach the photoelectric conversion panel 10 and the extension photoelectric conversion panel 50 along the column direction. In addition, the photoelectric conversion device 1 may include a connection portion 20 capable of attaching and detaching the photoelectric conversion panel 10 and the additional photoelectric conversion panel 50 in the row direction, and a photoelectric conversion device 10 capable of attaching and detaching the photoelectric conversion panel 10 and the additional photoelectric conversion panel 50 in the column direction. Connection section 20.

As shown in FIG. 8, the photoelectric conversion device 1 can be provided with an additional photoelectric conversion device 50 a along the row direction, and an additional photoelectric conversion device 50 b along the column direction. In the column direction and the row direction of the additional photoelectric conversion panel 50b, the additional photoelectric conversion panel 50c is added. That is, the photoelectric conversion panels 10 and the additional photoelectric conversion panels 50 a to 50 c may be arranged in a matrix.

At this time, adjust the size of the connection portion 20 and the extension connection portion 60, the interval between the photoelectric conversion panel 10 and the extension photoelectric conversion panel 50a, the extension photoelectric conversion panel 50b, and the extension photoelectric conversion panel 50c (that is, the row direction). Interval) is better. In addition, the sizes of the connection portion 20 and the extension connection portion 60 are adjusted, the interval between the photoelectric conversion panel 10 and the extension photoelectric conversion panel 50b, the extension photoelectric conversion panel 50a, and the extension photoelectric conversion panel 50c (that is, the column direction interval). ) Consistent is better. In addition, the row-direction interval and the column-direction interval need not coincide.

In this way, the interval between the photoelectric conversion panel 10 and the additional photoelectric conversion panel 50 is adjusted so that the row-direction interval and the column-direction interval between the panels are respectively consistent. Therefore, a plurality of additional photoelectric conversion panels 50 are added in rows and columns. Under the shape stability will be improved.

FIG. 9 is a top view showing a first modification of the connecting portion 20. The connection portion 20 may have a guide rail in one of the first connection member 22 and the second connection member 23, and the other may have a guide member that slides and engages with the guide rail in a different direction than the connection direction. . For example, as shown in FIG. 9, the first connection member 22 includes a guide rail 27, and the second connection member 23 includes a guide member 28. The guide member 28 extends in a direction (for example, a width direction) different from the connection direction. The guide rail 27 internally defines a hollow portion S corresponding to the guide member 28. When the guide member 28 slides on the guide rail 27 along the extending direction, the guide rail 28 is engaged with the guide rail 27 in the hollow portion S, and can be attached to and detached from the guide rail 27.

As described above, one of the first connection member 22 and the second connection member 23 has a guide rail, and the other has a guide member that slides and engages with the guide rail in a direction different from the connection direction. With this structure, since the direction in which the first connection member 22 and the second connection member 23 are attached and detached is different from the connection direction, the stress applied to the photoelectric conversion device 1 during attachment and detachment can be reduced.

The photoelectric conversion panel 10 is not limited to the photoelectric conversion modules 11 arranged in a matrix. For example, as shown in FIG. 10 (a), a single photoelectric conversion module 11 may be used. Similarly, as shown in FIG. 10 (a), the additional photoelectric conversion panel 50 may be configured by a single additional photoelectric conversion module 51. In addition, as shown in FIG. 10 (b), the photoelectric conversion panel 10 may be configured by connecting a plurality of photoelectric conversion modules 11 arranged on a straight line through a connecting portion 12.

FIG. 11 is a top view showing a second modification of the connecting portion 20. As shown in FIG. 11, the connection portion 20 of the second modification includes a third connection member 24 provided in any of the photoelectric conversion modules 11 in the photoelectric conversion panel 10, and a connection member 20 provided in the additional photoelectric conversion panel 50. The third connection member 24 and the extension connection body 30 of the optional extension photoelectric conversion module 51. Here, the additional connection body 30 includes a first conductive member 21 ′ as the conductive member 21, and a fourth connection member that is provided on both sides of the first conductive member 21 ′ and is detachable from the third connection member 24. 25. That is, the attachment connector 30 can be attached to or detached from any one of the photoelectric conversion panel 10 and the extension photoelectric conversion panel 50.

As described above, the connection section 10 includes an attachment connector 30 attached to or detached from any one of the photoelectric conversion panel 10 and the extension photoelectric conversion panel 50. As a result, when the photoelectric conversion device 1 is not provided with the extension photoelectric conversion panel 50, The extension connector 30 can be connected to only the photoelectric conversion panel 10, the extension connector 30 can be connected to only the extension photoelectric conversion panel 50, or it can be managed separately from both. In addition, it is easy to replace the additional connecting body 30 with a new member.

As shown in FIG. 11, the additional connection body 30 according to the second modification includes a reinforcing member 26 directly coupled to the fourth connection member 25. In this manner, the extension connection body 30 includes at least one reinforcing member 26 directly coupled to the fourth connection member 25, can reinforce the fourth connection member 25, and can lift and remove the photoelectric conversion module 11 and the extension photoelectricity through the connection portion 20. Stability when converting module 51. In addition, the reinforcing member 26 can also function as a gripping portion, and provides gripping when the extension connector 30 and the photoelectric conversion module 11 or the extension photoelectric conversion module 51 are detached.

FIG. 12 is a top view showing a third modified example of the connecting portion 20. As shown in FIG. 12, the connection portion 20 of the third modification example includes the same photoelectric conversion module provided in the photoelectric conversion panel 10 as the connection portion 20 of the second modification example in FIG. 11. The third connecting member 24 of 11, the third connecting member 24 of the optional photoelectric conversion module 51 provided in the additional photoelectric conversion panel 50, and the additional connecting body 30. In addition, the additional connecting body 30 according to the third modified example includes the first conductive member 21 ′ as the conductive member 21 and is provided on both sides of the first conductive member 21 ′ similarly to the connection portion 20 of the second modified example. The fourth connection member 25 is detachable from the third connection member 24. In addition, the additional connecting body 30 of the third modified example includes a reinforcing member 26 directly coupled to the fourth connecting member 25 in the same manner as the additional connecting body 20 of the second modified example. As described above, the connection portion 20 of the third modification has the same structure as the connection portion 20 of the second modification, and thus has the same effect as the connection portion of the second modification.

The connection portion 20 of the third modification has the following structure in addition to the above-mentioned structure common to the connection portion 20 of the second modification. That is, as shown in FIG. 12, in the third modification, the fourth connection member 25 is arranged from the reinforcing member 26 provided at both ends of the first conductive member 21 ′ to be perpendicular to the first conductive member 21 ′ and the reinforcement. The direction of the connection direction of the members 26 extends. Here, in the example shown in FIG. 12, the two fourth connecting members 25 provided on the two reinforcing members 26 are arranged on the same side as the reinforcing member 26 (the lower side in FIG. 12). ). In the third modified example, a hollow portion S ′ is defined inside the third connecting member 24 and is detachable from the fourth connecting member 25. When the fourth connecting member 25 is inserted into the hollow portion S 'and engages, it forms with When the fourth connection member 25 is connected, when the fourth connection member 25 is discharged from the hollow portion S ′, the fourth connection member 25 is not connected to the fourth connection member 25. In addition, a hollow portion may be defined inside the fourth connecting member, and the third connecting portion 24 may be inserted into the hollow portion and engaged to form a connected state.

In the third modified example, the additional connection body 30 constitutes two third connection members 24 disposed opposite to each other (the third connection member 24 provided in the photoelectric conversion module 11 in FIG. 12 and the additional photoelectric device) The third connection member 24 of the conversion module 51) can move the fourth connection member 25 and the third connection member in a vertical direction (upward and downward directions in FIG. 12) in the opposite direction (left-right direction in FIG. 12). The connection members 24 are attached and detached. In this way, in the third modification, the additional connecting body 30 is moved relative to the two third connecting members 24 in a direction perpendicular to the opposite direction (connecting direction) to form a connected state, so that external force can be increased. Connection stability when applied to the connection portion 20. The third connection members 24 are not connectable to each other. That is, the third connection member 24 is connected to the other third connection members 24. Therefore, the third connection members 24 can be connected only when the additional connection body 30 is used, and therefore, the third connection members 24 can be prevented from being inadvertently connected.

Further, as shown in FIG. 12, the connection portion 20 of the third modification example further includes a second conductive member 21 ″ as the conductive member 21. Then, the third connection members 24 are respectively provided through the second conductive member 21 ″ The photoelectric conversion module 11 and the additional photoelectric conversion module 51. As described above, the 3 connecting member 24 is provided on the photoelectric conversion module 11 and the additional photoelectric conversion module 51 through the second conductive member 21 ″ having flexibility, so that the flexibility of the connecting portion 20 can be improved. When the flexibility of the second conductive member 21 ″ can ensure the flexibility of the connection portion 20, the first conductive member 21 ′ may be a highly rigid member.

13 to 18 show examples of adding the photoelectric conversion device 1 including the connection portion 20 of the third modification. As shown in FIG. 13, the third connection member 24 provided with the photoelectric conversion panel 10 among the third connection members 24 passes through the second conductive member 21 ″ and is provided in the photoelectric conversion module 11 along the photoelectric conversion panel 10. The photoelectric conversion module 11 arranged on the outer periphery. Similarly, the third connection member 24 provided with the additional photoelectric conversion panel 50 among the third connection members 24 is also provided in the additional photoelectric conversion module through the second conductive member 21 ". Among the 51, the additional photoelectric conversion module 51 is arranged along the outer periphery of the additional photoelectric conversion panel 50. In the example shown in FIG. 13, the third connection member 24 passes through the second conductive member 21 ″ and is provided in each module (photoelectric conversion module) located at the center of each side of the outer periphery of the photoelectric conversion panel 10 and the additional photoelectric conversion panel 50 11 or additional photoelectric conversion module 51). In this way, the third connection member 24 is provided in at least one module disposed on each side of the photoelectric conversion panel 10 and the additional photoelectric conversion panel 50, so that the direction of addition is not limited, Increased degrees of freedom.

As shown in FIG. 13, the additional connection portion 60 may have the same structure as the connection portion 20 of the third modification. Thereby, any two of the photoelectric conversion panel 10 and the plurality of additional photoelectric conversion panels 50 can be freely connected and added using the extension connection body 30 using a common member. Therefore, the degree of freedom of arrangement is improved, and the usability is improved. . As shown in FIG. 13, the circuit unit 40 may include a fourth connection member 25. Thereby, the circuit portion 40 can be connected to the third connection member 24 which is not used in the connection of the photoelectric conversion panel 10 or the additional photoelectric conversion panel 50, and therefore, the degree of freedom in the arrangement of the circuit portion 40 is improved.

Further, as shown in FIG. 13, an additional connection body 30 connects two adjacent third connection members 24. Therefore, the usability of the added photoelectric conversion device 1 is improved, and connection stability such as strength is also improved.

FIG. 14 is an example in which the size of the photoelectric conversion panel 10 and the extension photoelectric conversion panel 50 are different. In the example shown in FIG. 14, the third connection member 24 is provided in each module (the photoelectric conversion module 11 and the additional photoelectric conversion module 51) through the second conductive member 21 ″ and is arranged at the end in the row direction and Modules in the column direction end. With such a structure, even when the photoelectric conversion panel 10 and the extension photoelectric conversion panel 50 are different in size, the row direction ends of the photoelectric conversion panel 10 and the extension photoelectric conversion panel 50 can be aligned. It can be arranged neatly because it is an end part in a column or a column direction.

The photoelectric conversion panel 10 and the extension photoelectric conversion panel 50 are electrically connected in parallel with each other. Therefore, the photoelectric conversion panel 10 and the additional photoelectric conversion panel 50 are not affected by the number of modules configured, and the output voltages are equal to each other. In order to achieve such a structure, for example, when the power generation voltages of the photoelectric conversion module 11 and the additional photoelectric conversion module 51 are equal, the number of series connection of the photoelectric conversion modules 11 in the photoelectric conversion panel 10 and the number of additional The number of serial connection of the additional photoelectric conversion modules 51 in the photoelectric conversion panel 50 may be equal to each other.

FIG. 15 is an example in which the photoelectric conversion panel 50 for installation is further added in the state shown in FIG. 14. In this manner, even when the additional photoelectric conversion panel 50 is added, the positions of the row-direction end or the column-direction end between the additional photoelectric conversion panels 50 can be aligned and arranged.

Further, as shown in FIG. 16, the third connection member 24 may be provided only on, for example, two adjacent sides among the four sides among the photoelectric conversion panel 10 and the additional photoelectric conversion panel 50. Even with such a structure, as shown in FIG. 16, the extension connecting body 30 is arranged, and all the photoelectric conversion panels 10 and the extension photoelectric conversion panel 50 can be arranged in a shortest distance while being neatly arranged. In addition, as shown in FIG. 16, the fourth connection member 25 may have a structure in which the third connection member 24 can be inserted only from the inside of each side of the photoelectric conversion panel 10 and the additional photoelectric conversion panel 50.

As shown in FIG. 17, the two fourth connection members 25 of the additional connection body 30 are not limited to being disposed on the same side of the reinforcing member 26, and may be disposed on opposite sides of each other (upper side and lower side in FIG. 17). side). By using such an extension connector 30, as shown in FIG. 17, the photoelectric conversion panel 10 and the extension photoelectric conversion panel 50 can be arranged with a high degree of freedom while changing the overall shape in various ways according to the purpose. . Thereby, for example, it can be arranged while avoiding a shadowy place to improve the overall power generation efficiency, or it can be arranged in a shape corresponding to the installation place.

In addition, as shown in FIG. 18, the photoelectric conversion panel 10 and the plurality of extension photoelectric conversion panels 50 may be connected to each other at a plurality of locations by extension connection bodies 30. In this way, by connecting the panels to each other at a plurality of locations, it is possible to arrange them more stably and neatly. In addition, in a case where the panels are connected to each other at a plurality of positions, as long as one part includes a part connected with the extension connecting body 30, other parts may replace the extension connecting body 30 and use the same Mechanical connector with same shape but not electrically connected.

As described above, using the connection portion 20 of the third modification example, the photoelectric conversion panel 10 and the additional photoelectric conversion panel 50 can be attached and detached with a simple operation, and can be used in various forms in accordance with the use situation.

The foregoing content only shows one embodiment of the present invention. In the scope of the patent application, various changes can be added without any explanation. For example, although the configuration of each constituent element is described using rows and columns, the rows and columns are defined for convenience of description only, and the two can be interchanged with each other.

In addition, although the photoelectric conversion module 11 included in the photoelectric conversion device 1 has been described as rectangular in the top view, it is not limited to such a shape, and may be, for example, a polygon such as a hexagon or an ellipse.

According to the present invention, it is possible to provide a photoelectric conversion device capable of adding a photoelectric conversion panel and stabilizing a positional relationship between the connected photoelectric conversion panels.

Claims (17)

A photoelectric conversion device includes: a photoelectric conversion panel having one or more plate-shaped photoelectric conversion modules; a connecting portion including a flexible conductive member, and the photoelectric conversion module and an additional photoelectric conversion panel. The additional photoelectric conversion module is mechanically and electrically attached and detached. Assuming that the thickness of the conductive member is D ₁ and the width in the vertical direction along the connection direction of the conductive member and the thickness direction is W ₁ , then W ₁ is satisfied. ≧ 3D ₁ relationship. According to the photoelectric conversion device described in item 1 of the scope of patent application, assuming that the width in the vertical direction along both the connection direction and the thickness direction of the photoelectric conversion module is W ₂ , then the relationship of W ₂ ≧ W ₁ is satisfied. According to the photoelectric conversion device described in item 1 or 2 of the scope of patent application, assuming that the thickness of the photoelectric conversion module is D ₂ , the relationship of D ₂ ≧ D ₁ is satisfied. The photoelectric conversion device according to item 1 or 2 of the scope of patent application, wherein assuming that the length along the connection direction of the conductive member is L ₁ , the relationship of W ₁ ≧ L ₁ is satisfied.     The photoelectric conversion device according to item 1 or 2 of the scope of patent application, wherein the connection portion includes a first connection member provided on the photoelectric conversion panel and a second connection member provided on the additional photoelectric conversion panel. The 1 connection member and the second connection member are detachable from each other, wherein the conductive member is provided between the photoelectric conversion panel and the first connection member, and / or between the additional photoelectric conversion panel and the second member.         The photoelectric conversion device according to item 5 of the scope of patent application, wherein one of the first connection member and the second connection member has a guide rail, and the other has a guide member, which can be along the connection direction. Different directions slide and engage with the guide rail.         The photoelectric conversion device according to item 5 of the scope of patent application, wherein the connection portion further includes a reinforcing member directly coupled to at least one of the first connection member and the second connection member.         The photoelectric conversion device according to item 1 or 2 of the scope of application for a patent, wherein the connection portion includes: a third connection member respectively provided on the photoelectric conversion panel and the additional photoelectric conversion panel; and an additional connection body, wherein the The additional connection body includes: a first conductive member as the conductive member; and a fourth connection member provided on both sides of the first conductive member and attachable to and detachable from the third connection member.         The photoelectric conversion device according to item 8 of the scope of patent application, wherein the additional connecting body further includes a reinforcing member directly coupled to the fourth connecting member.         The photoelectric conversion device described in item 8 of the scope of patent application, further includes: a second conductive member as the conductive member, wherein the third connecting member provided in the photoelectric conversion panel among the third connecting members will pass through The second conductive member is disposed in the photoelectric conversion module of the photoelectric conversion module, which is arranged along the outer periphery of the photoelectric conversion panel.         The photoelectric conversion device according to item 10 of the scope of patent application, wherein the photoelectric conversion modules are arranged in a row and column shape, and among the third connection members, the third connection member provided on the photoelectric conversion panel passes through the second The conductive member is provided in the photoelectric conversion module of the photoelectric conversion module, which is arranged at the end portion in the row direction and the end portion in the column direction.         The photoelectric conversion module according to item 8 of the scope of patent application, wherein the third connection members are not connectable to each other.         The photoelectric conversion module according to item 8 of the scope of patent application, wherein the additional connecting body is moved in a direction perpendicular to the opposing direction with respect to the two opposing third connecting members, thereby enabling The fourth connection member is attachable to and detachable from the third connection member.         The photoelectric conversion module according to item 8 of the scope of patent application, further comprising: a circuit section including the fourth connection member.         According to the photoelectric conversion module described in item 1 or 2 of the scope of patent application, the connection part can attach and detach the photoelectric conversion panel and the additional photoelectric conversion panel in the row direction and / or the column direction.         The photoelectric conversion module according to item 1 or 2 of the scope of patent application, wherein the photoelectric conversion panel and the additional photoelectric conversion panel can be folded through the connecting portion.         The photoelectric conversion module described in item 1 or 2 of the scope of the patent application, further includes: an auxiliary connection portion capable of mechanically connecting the photoelectric conversion module and the additional photoelectric conversion module.