JP4924724B2 - Solar panel - Google Patents

Description

  The present invention relates to a solar cell panel in which a plurality of solar cells are arranged.

  Solar cells that generate power using light such as the sun do not have the same power generation effect over the entire wavelength range of light, and the wavelength range of maximum efficiency is limited to some extent by the characteristics of the material itself. Therefore, when the efficiency of the solar cell is pursued, the wavelength range that can be used inevitably tends to be narrowed.

  Therefore, a so-called multi-layer solar cell (tandem solar cell) has been proposed in which a solar cell made of a material with different maximum efficiency wavelength regions is made into a thin film and a plurality of layers are stacked to expand the usable wavelength region. .

  In addition, using a fluorescent optical plate (in which a fluorescent substance is mixed inside) or a substrate coated with a fluorescent dye on a glass substrate, the wavelength of light is converted from a wavelength with low power generation efficiency to a wavelength with high power generation efficiency. And the solar cell module (refer the following patent document 1) of the structure made to inject into a solar cell is proposed.

  Furthermore, a solar cell is bonded to the end face of the optical plate capable of wavelength conversion (wavelength conversion optical plate) described above, and light is concentrated on the solar cell on the end face of the optical plate by the waveguide action (total reflection) of the optical plate. A solar cell module having a structure (see Patent Document 2 below) has been proposed.

  Moreover, the solar cell is not only used as a single solar cell (solar cell), but also a solar cell panel in which a plurality of solar cells are arranged in a plane direction (see Patent Document 3 below).

  When manufacturing this solar cell panel, the solar cell is as thin as 150 μm to 200 μm, so the solar cell is pasted on a tempered glass substrate, the surface is filled with resin, and the surface is further resin sheet And then, for example, an operation of fitting it in an aluminum frame was performed.

Japanese Patent Publication No.8-4147 JP-A-57-95675 JP-A-51-110985

  However, as described above, manufacturing a solar battery panel using solar cells requires operations such as attaching solar cells, filling a resin, coating a resin sheet, and fixing to a frame. There is a problem that the process becomes complicated and the manufacturing cost increases.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a solar cell panel that has high photoelectric conversion efficiency and can be easily manufactured at low cost.

  (1) The invention of claim 1 uses a flat plate solar cell and a wavelength conversion optical plate for converting the wavelength of sunlight, and laminates the solar cell in the thickness direction of the wavelength conversion optical plate. The solar cell module is a plate-shaped solar cell panel in which a plurality of the solar cell modules are arranged, and the wavelength of the solar cell module is such that light that has been wavelength-converted by the wavelength conversion optical plate is incident on the solar cell side. A solar cell module in which an end portion in the planar direction of the conversion optical plate is an end surface inclined with respect to the planar direction, and the plurality of solar cell modules are arranged side by side in the planar direction of the solar cell panel ( And a fixing portion for fixing an end portion of each solar cell module in the planar direction when the solar cell modules are arranged at a predetermined fixing position. Characterized by comprising.

  In the present invention, the wavelength conversion optical plate converts the light in a specific wavelength region into light having a different wavelength (light that increases the photoelectric conversion efficiency in the solar cell), and the converted light is incident on the solar cell. Have.

  Further, the oblique end face (for example, a plane) in the plane direction of the wavelength conversion optical plate is formed so as to be inclined at an angle of 90 ° <inclination angle θ <180 ° with respect to the plane direction. The light that has been wavelength-converted and condensed inside the optical plate is preferably reflected to the solar cell side at the plate end face and is incident on the solar cell. Therefore, the photoelectric conversion efficiency in the whole solar cell module and by extension, the whole solar cell panel is improved.

  Furthermore, in the present invention, for example, an ordinary Si solar cell is simply attached (with an optical adhesive or the like) in the thickness direction of the wavelength conversion optical plate, so that the effect of improving the power generation efficiency is obtained, so that the production is easy. Manufacturing costs can also be reduced.

  In particular, in the present invention, a solar cell is attached to a wavelength conversion optical plate (for example, having a thickness of 1 to 30 mm) that is not easily bent or bent, rather than a solar cell panel to which a conventional thin-film solar cell is attached. Since the plate-like solar cell module is fixed to the frame using a battery module, more specifically, a plurality of plate-like solar cell modules are aligned along the plane direction of the solar cell panel (the plane direction of the solar cell module itself is aligned) The solar cell panel can be easily manufactured at a low cost because it is arranged side by side and the planar ends of the solar cell modules are fixed by the frame fixing portions.

As the solar cell, for example, a thin film Si, CIGS, CdTe, GaAs, dye-sensitized type, organic dye type, or the like can be used.
The inclination angle θ is preferably in the range of 125 ° <θ <145 °.

(2) The invention of claim 2 is characterized in that the frame is provided with a wiring electrically connected to an electrode of the solar cell.
In the present invention, since the wiring is provided on the frame (particularly the fixing portion), when the solar cell module is fixed to the frame, the electrical connection between the electrode of the solar cell and the wiring of the frame can be easily performed.

  Therefore, when a plurality of solar cells are connected in series, for example, the solar cells can be connected to each other via the wiring formed in the fixed portion only by fixing the solar cell module to the fixed portion. Thereby, assembly manufacture becomes easy and it contributes to cost reduction.

  In addition, the electrode of the solar cell has been extended so that the electrode of the solar cell and the wiring of the frame are in contact with each other so that the electrode of the solar cell can be connected to the wiring of the frame, that is, when the solar cell module is fixed to the frame ( For example, it is desirable to form the wavelength conversion optical plate so as to be exposed at the end portion (end surface) in the planar direction.

(3) In the invention of claim 3, the solid portion is configured to engage with an oblique end surface of the wavelength conversion optical plate and to engage with a side opposite to the light incident side of the solar cell. Features.
In the present invention, the fixing portion of the frame engages with the oblique end surface of the wavelength conversion optical plate and the light-incident side (back side) of the solar cell, that is, the solar cell module is sandwiched from both sides in the plate thickness direction. Therefore, the solar cell module can be easily and reliably fixed to the frame.

(4) The invention of claim 4 is characterized in that the fixing portion has an oblique end face that abuts against the oblique end face of the wavelength conversion optical plate.
The present invention exemplifies the structure of the fixed portion, and the oblique end surface of the wavelength conversion optical plate and the oblique end surface of the fixed portion abut (for example, the entire surface abuts: the inclination angle is the same), The solar cell module can be securely fixed.

  (5) In the invention of claim 5, the frame has an upper frame for fixing the wavelength conversion optical plate from the light incident side, and a lower frame for fixing the solar cell from the opposite side to the light incident side. Features.

  In the present invention, since the frame includes the upper frame and the lower frame, the solar cell module can be easily and reliably fixed by sandwiching the solar cell module between the frames.

  (6) In the invention of claim 6, an auxiliary wavelength conversion optical plate is disposed on the surface of the frame on the sunlight incident side so that light can be incident on the wavelength conversion optical plate. Features.

  In the present invention, for example, by arranging an auxiliary wavelength conversion optical plate so as to cover the upper frame, sunlight can be used effectively without waste (that is, loss when using sunlight can be reduced). .

As the structure of the auxiliary wavelength conversion optical plate, the same structure as that of the wavelength conversion optical plate having an end face inclined in the plane direction can be adopted.
(7) The invention of claim 7 is characterized in that a reflecting member that reflects sunlight toward the end in the planar direction of the wavelength conversion optical plate is disposed between the adjacent solar cell modules.

  In the present invention, for example, a triangular prism-shaped reflecting member is arranged on a frame between adjacent solar cell modules, and sunlight is reflected on the inclined surface thereof, so that the sun is on the end side in the planar direction of the wavelength conversion optical plate. Since the light is incident, sunlight can be used effectively without waste (that is, loss when using sunlight can be reduced).

(8) The invention of claim 8 is characterized in that a cooling fin is provided on the side of the frame opposite to the sunlight incident side.
In the present invention, since the cooling fin is provided in the frame, there is an effect of suppressing the efficiency reduction due to the heat of the solar cell.

(9) The invention of claim 9 is characterized in that a thermoelectric element is provided between the frame and the cooling fin.
In the present invention, since a thermoelectric element (converting heat into electricity) is provided between the frame and the cooling fin, it is possible to generate power even by heat, and thus more effective use of solar energy. it can.

  (10) In the invention of claim 10, the plurality of solar cell modules and a part (for example, the upper frame) or the whole of the frame in which the plurality of solar cell modules are arranged are made of a translucent protective sheet or protective plate. It is characterized by being covered with.

Thereby, while being able to suppress the influence of humidity, dirt, such as dust, can be prevented.
(11) In the invention of claim 11, each solar electric module is covered with a translucent protective sheet or protective plate, and each solar cell module covered with the protective sheet or protective plate is fixed to the frame. And

  Thereby, while being able to suppress the influence of humidity, dirt, such as dust, can be prevented.

It is explanatory drawing which shows typically the state (AA cross section of Fig.2 (a)) which cut | disconnected the solar cell panel of Example 1 in the plate | board thickness direction. (A) The top view of the solar cell panel of Example 1, (b) The bottom view of the solar cell panel of Example 1. FIG. (A) The perspective view of the solar cell module used for Example 1, (b) The top view of the solar cell module. 4 is a graph showing spectral sensitivity characteristics of the solar cell of Example 1. (A) Explanatory drawing which shows typically the state (cross section in the position of BB of Fig.2 (a)) which cut | disconnected the solar cell panel of Example 2 in the plate | board thickness direction, (b) The sun of Example 2 Explanatory drawing which expands and shows the principal part of the cross section of a battery module, (c) The state (cross section in the position of AA of Fig.2 (a)) which cut | disconnected the solar cell module of Example 3 in the plate | board thickness direction. Explanatory drawing typically shown, (d) Explanatory drawing which shows typically the state (cross section in the position of BB of Fig.2 (a)) which cut | disconnected the solar cell module of Example 4 in the plate | board thickness direction. . (A) Explanatory drawing which shows typically the state (cross section in the position of AA of FIG. 2 (a)) which cut | disconnected the solar cell panel of Example 5 in the plate | board thickness direction, (b) The sun of Example 6 Explanatory drawing which shows typically the state (cross section in the position of AA of FIG. 2A) which cut | disconnected the battery panel in the plate | board thickness direction, (c) The solar cell module of Example 7 is cut | disconnected in the plate | board thickness direction FIG. 2 is an explanatory view schematically showing the state (cross section at the position AA in FIG. 2A), and FIG. 2D is a state in which the solar cell module of Example 8 is cut in the plate thickness direction (FIG. 2A). It is explanatory drawing which shows typically the cross section in the position of BB.

  Next, examples of the solar cell panel of the present invention will be described with some specific examples.

a) First, the configuration of the solar cell panel of this example will be described.
As shown in FIGS. 1 and 2, the solar cell panel 1 of the present embodiment includes a plurality of (for example, nine) plate-shaped solar cell modules on a lattice-shaped (for example, AB resin) resin frame 3. This is a plate-like member in which 5 is arranged and fixed in a plane direction.

  Among these, as shown in FIG. 3, the solar cell module 5 has a similar planar shape on one side (lower side in FIG. 3A) in the thickness direction of the wavelength conversion optical plate 9 having a square planar shape. A square solar cell 7 is bonded with a light-transmitting optical adhesive (for example, an optical silicon resin adhesive).

  The solar cell 7 is a Si single crystal battery having a length of 100 mm, a width of 100 mm, and a thickness of 200 nm, and has spectral characteristics (spectral sensitivity characteristics) as shown in FIG. As shown in the figure, it can be seen that this solar cell 7 hardly generates power in the ultraviolet light region of 400 nm or less. In the figure, the spectral sensitivity characteristic is indicated by a solid line, and the energy distribution of sunlight is schematically indicated by a broken line.

  The wavelength conversion optical plate 9 is a transparent and hard flat plate having a length of 100 mm, a width of 100 mm, and a thickness of 3 mm. An end face (four sides) 11 of the entire circumference in the plane direction (direction perpendicular to the plate thickness direction) is The solar cell 7 side is cut obliquely with respect to the plane direction (for example, inclined by 45 °) so as to be wide.

The wavelength conversion optical plate 9 is made of, for example, Lumilas G9 (trade name) and is made of Tb-added fluorescent glass (B ₂ O ₃ · CaO · SiO ₂ · La ₂ O ₃ · Tb ³⁺ ). This wavelength conversion optical plate 9 absorbs light in the ultraviolet region having a light wavelength of 400 nm or less and exhibits fluorescence at a wavelength of 545 nm.

  On the other hand, as shown in FIG. 1 and FIG. 2, the frame 3 is a member that spreads in a lattice pattern on the same plane (planar shape is square), and sandwiches the solar cell module 5 from the vertical direction in FIG. It is composed of an upper frame 13 and a lower frame 15. The upper frame 13 and the lower frame 15 are integrally fixed by screws 17.

  In the frame 3, nine solar cell modules 5 are opened at nine positions in order to accommodate the solar cell module 5 itself in a lattice shape so as to coincide with the plane direction of the solar cell module 5 itself and the plane direction of the solar cell panel 1 ( A housing part 19 having a square shape in plan view is provided.

And the fixing | fixed part 21 for fixing the edge part of the planar direction of the solar cell module 5 is provided in the inner peripheral part which faces the accommodating part 19 of the said flame | frame 3 as shown in FIG.
In detail, the inner peripheral part facing the accommodating part 19 of the upper frame 13 is on the fixed part side inclined at the same angle so as to abut the entire end face 11 of the wavelength conversion optical plate 9 in the plane direction. An end surface 23 is provided, and a fixed portion side vertical surface 25 extending from the fixed side end surface 23 toward the lower frame 15 is provided. On the other hand, the upper surface on the fixed portion side is in contact with the outer peripheral portion of the lower surface (the back surface opposite to the light incident side) of the solar cell 7 on the inner peripheral portion (the upper surface) facing the housing portion 19 of the lower frame 15. 27 is provided.

  Therefore, when the solar cell module 5 is sandwiched between the upper frame 13 and the lower frame 15 in the accommodating portion 19, the end portion of the solar cell module 5 is fixed by the fixing portion 21.

b) Next, the function of the solar cell panel 1 of the present embodiment will be described.
A part of sunlight incident on the solar cell module 5 from the outside generates fluorescence of 545 nm at the wavelength conversion optical plate 9, and the light (fluorescence) is reflected and condensed inside the wavelength conversion optical plate 9. Then, the light is incident on the oblique end surface 11 inclined at 45 ° of the wavelength conversion optical plate 9 and reflected, and is incident on the solar cell 7 from the back surface (opposite to the incident side) of the wavelength conversion optical plate 9.

  At the same time, incident light (non-fluorescent light) of the total reflection condition that is incident on the solar cell module 5 from the outside is also reflected on the end face 11 and is incident on the solar cell 7. Due to these effects, the photoelectric conversion amount in this portion is improved.

Moreover, since the light which does not enter into the end surface 11 among the 545 nm fluorescence generated in the wavelength conversion optical plate 9 enters the solar cell 7 as it is, the photoelectric conversion amount is slightly improved.
Further, since the glass constituting the wavelength conversion optical plate 9 is transparent, most of visible to infrared light passes through the wavelength conversion optical plate 9 and enters the solar cell 7 for photoelectric conversion.

c) Next, the manufacturing method of the solar cell panel 1 of the present embodiment will be briefly described.
For example, the upper frame 13 is arranged upside down (for example, upside down in FIG. 1). That is, it arrange | positions with the big opening of the accommodating part 19 facing up.

  The solar cell module 5 is stored in the opened accommodating portion 19 with the wavelength conversion optical plate 7 side down. Thereby, the oblique end surface 11 of the wavelength conversion optical plate 7 and the fixed portion side end surface 23 come into contact with each other.

Thereafter, the positions of the upper frame 13 and the lower frame 15 are aligned and fixed together with screws 17.
Thereby, the solar cell module 5 is fixed in the housing part 19 of the frame 3.

  d) In the present embodiment, the oblique end face 11 is formed on the wavelength conversion optical plate 9, so that the light that has been wavelength-converted and condensed inside the wavelength conversion optical plate 9 is preferably at the end face of the solar cell 7 side. And is incident on the solar cell 7. Therefore, the photoelectric conversion efficiency in the entire solar cell module 5 and eventually the entire solar cell panel 1 is improved.

  In addition, in this embodiment, the solar cell 7 is not a solar cell panel on which a conventional thin-film solar cell is attached, but a hard wavelength conversion optical plate 9 made of glass having a thickness of 3 mm that is not easily bent or bent. Since the solar cell modules 5 attached to each other are arranged and fixed to the frame 3, in detail, the solar cell module 5 is sandwiched between the upper and lower frames 13 and 15, and the end in the planar direction is fixed by the fixing portion 21. Therefore, the solar cell panel 1 can be easily manufactured at low cost.

  In particular, since the oblique end surface 11 of the wavelength conversion optical plate 9 and the end surface (fixed portion side end surface 23) are in contact with each other diagonally, the solar cell module 5 can be easily and reliably fixed.

Next, Example 2 will be described, but description of the same contents as Example 1 will be omitted.
As shown in FIG. 5 (a) and FIG. 5 (b) in which the main part is enlarged, the solar cell panel 21 of the present example is similar to the first example from the solar cell 23 and the wavelength conversion optical plate 25. A solar cell module 27 is fixed by being sandwiched by a frame 33 including an upper frame 29 and a lower frame 31.

  In particular, in the present embodiment, the wavelength conversion optical plate 25 is inclined in the plane direction so as to be electrically connected to the upper electrode 35 formed on one side (upper side in the figure) of the solar cell 23 in the plate thickness direction. A conductive layer 39 is formed on the end surface 37. The other electrode (lower electrode 41) of the solar cell 23 is formed on the surface opposite to the upper electrode 35 (lower side in the figure).

  On the other hand, an upper frame conductive layer 45 is formed on the upper frame 29 so as to abut the conductive layer 39 on the inclined end surface 37 of the wavelength conversion optical plate 25 on the inclined fixed portion side end surface 43. The upper frame conductive layer 45 extends so as to reach the lower frame 31.

  Further, a lower frame conductive layer 47 is formed on the upper surface of the lower frame 31 so as to come into contact with the lower electrode 41 of another adjacent solar cell 23. It extends in the plane direction (to the right in FIG. 5B) so as to be electrically connected to the lower end of the frame conductive layer 45.

  Therefore, in this embodiment, when the plurality of solar cell modules 27 are sandwiched and fixed between the upper frame 29 and the lower frame 31, the plurality of solar cells 23 can be automatically connected in series. Thereby, assembly manufacture becomes easy and there exists a remarkable effect that it contributes to cost reduction.

Next, although Example 3 is demonstrated, description of the content similar to Example 1 is abbreviate | omitted.
As shown in FIG. 5C, the solar cell panel 51 of the present example is similar to the first example in that the solar cell module 57 including the solar cell 53 and the wavelength conversion optical plate 55 is replaced by the upper frame 59 and the lower frame. It is fixed by being sandwiched by a frame 63 consisting of a frame 61.

  In particular, in the present embodiment, an auxiliary wavelength conversion optical plate 67 having an inclined end surface 65 (in the plane direction) similar to the wavelength conversion optical plate 55 on the upper surface side (sunlight incident side) of the upper frame 59. Is pasted.

The lower surface of the left and right ends of the auxiliary wavelength conversion optical plate 67 (the surface below the oblique end surface 65) is disposed so as to cover the end of the upper surface of the wavelength conversion optical plate 55.
Therefore, in this embodiment, the sunlight incident on the upper frame 59 side is wavelength-converted and condensed in the auxiliary wavelength conversion optical plate 67 and introduced into the wavelength conversion optical plate 55. It can be used effectively without waste. That is, the loss when using sunlight can be reduced.

Next, although Example 4 is demonstrated, description of the content similar to Example 1 is abbreviate | omitted.
As shown in FIG. 5 (d), the solar cell panel 71 of the present embodiment has a solar cell module 77 composed of a solar cell 73 and a wavelength conversion optical plate 75 similar to that of the first embodiment, for example, optically mounted on a lower frame 79. It is fixed with an adhesive.

  In particular, in this embodiment, a triangular prism reflection member 81 is fixed on the surface of the lower frame 61 exposed between adjacent solar cell modules 77 by, for example, an adhesive. The reflecting member 81 is obtained by forming a reflecting film (aluminum mirror) on the surface of a resin member or the like by vapor-depositing and sputtering aluminum. The reflecting member 81 is a member whose cross section perpendicular to the axial direction is a triangle (for example, a regular triangle).

  Therefore, in this embodiment, the sunlight that has entered between the solar cell modules 77 is reflected by the slope of the reflecting member 81 and is incident on the end side in the planar direction of the wavelength conversion optical plate 71, so that the sunlight is wasted. It can be used effectively. That is, the loss when using sunlight can be reduced.

Next, although Example 5 is demonstrated, description of the content similar to Example 1 is abbreviate | omitted.
As shown in FIG. 6 (a), the solar cell panel 91 of the present example is similar to the first example in that the solar cell module 97 including the solar cell 93 and the wavelength conversion optical plate 95 is replaced by the upper frame 99 and the lower frame. The frame 101 is fixed by being sandwiched between frames 103.

  In particular, in this embodiment, cooling fins (radiating fins) 105 are attached and fixed to the lower surface side of the lower frame 101 with, for example, an adhesive. Therefore, there is an effect of suppressing a decrease in efficiency due to heat of the solar cell 93.

  In this embodiment, the upper frame 99 and the lower frame 101 are fixed by screws 107 screwed from the upper frame 99 side.

Next, although Example 6 is demonstrated, description of the content similar to Example 5 is abbreviate | omitted.
As shown in FIG. 6B, the solar cell panel 111 of the present example is similar to the fifth example in that the solar cell module 117 composed of the solar cell 113 and the wavelength conversion optical plate 115 is replaced by the upper frame 119 and the lower frame. It is fixed by being sandwiched by a frame 123 made up of a frame 121.

  In particular, in this embodiment, a thermoelectric element 125 made of, for example, BiTe attached with an adhesive, for example, is provided on the lower surface side of the lower frame 121, and further, a cooling, for example, attached with an adhesive, on the lower surface side of the thermoelectric element 125 Fins (radiating fins) 127 are provided.

  Therefore, the effects of the fifth embodiment can be achieved, and power generation can be performed by heat, so that the energy of sunlight can be used more effectively.

Next, although Example 7 is demonstrated, description of the content similar to Example 1 is abbreviate | omitted.
As shown in FIG. 6C, the solar cell panel 131 of the present example is similar to the first example in that the solar cell module 137 including the solar cell 133 and the wavelength conversion optical plate 135 is replaced with the upper frame 139 and the lower frame 139. The frame 141 is sandwiched and fixed by a frame 143.

  In particular, in this embodiment, the solar cell module 137 and the upper frame 141 are covered with a translucent resin sheet (or resin plate) 145 made of, for example, (vinyl chloride), and the lower frame is formed from the outside (the lower side in the figure). 141 is fixed to the upper frame 139.

  Thereby, while being able to suppress the influence of humidity, dirt, such as dust, can be prevented.

Next, although Example 8 will be described, description of the same contents as Example 1 will be omitted.
As shown in FIG. 6 (d), the solar cell panel 151 of this example includes a solar cell module 157 composed of a solar cell 153 and a wavelength conversion optical plate 155, as in the first example. The frame 161 is sandwiched and fixed by a frame 163.

  In particular, in this embodiment, each solar cell module 157 is covered with a resin sheet (or resin plate) 165 made of, for example, (vinyl chloride), and is fixed by a lower frame 159 and an upper frame 161.

Thereby, while being able to suppress the influence of humidity, dirt, such as dust, can be prevented.
In addition, although the Example of this invention was described above, this invention is not limited to said specific Example, It can implement with a various form besides this within the scope of the present invention.

  For example, light other than sunlight can be used.

1, 21, 61, 71, 91, 111, 131, 151 ... Solar cell panel 3, 13, 63, 103, 123, 143, 163 ... Frame 5, 27, 57, 77, 97, 117, 137, 157 ... Solar cell module 7, 23, 53, 73, 93, 113, 133, 153 ... Solar cell 9, 25, 55, 67, 75, 95, 115, 135, 155 ... Wavelength conversion optical plate 11, 37, 65 ... End face 13, 29, 59, 99, 119, 139, 159 ... Upper frame 15, 31, 61, 79, 101, 121, 141, 161 ... Lower frame 19 ... Storage part 21 ... Fixing part 81 ... Reflecting member

Claims (11)

A plate in which a plurality of solar cell modules in which a flat solar cell and a wavelength conversion optical plate that converts the wavelength of sunlight are used and the solar cells are laminated and laminated in the thickness direction of the wavelength conversion optical plate are arranged. A solar cell panel,
As the solar cell module, the end in the planar direction of the wavelength conversion optical plate is inclined with respect to the planar direction so that the light wavelength-converted by the wavelength conversion optical plate enters the solar cell side. Using the solar cell module as the end face,
And while providing the frame which arranges the plurality of solar cell modules side by side in the plane direction of the solar cell panel,
A solar cell panel, wherein the frame includes a fixing portion that fixes an end portion of each solar cell module in a planar direction when the solar cell modules are arranged at a predetermined fixing position.   The solar cell panel according to claim 1, wherein the frame includes a wiring electrically connected to an electrode of the solar cell.   The said solid part is provided with the structure engaged with the light incident side and the opposite side of the said solar cell while engaging the diagonal end surface of the said wavelength conversion optical plate. Solar panel.   4. The solar cell panel according to claim 3, wherein the fixing portion includes an oblique end face that abuts against an oblique end face of the wavelength conversion optical plate.   The said frame has an upper frame which fixes the said wavelength conversion optical board from the light-incidence side, and a lower frame which fixes the said solar cell from the light-incident side and the other side. A solar cell panel according to the above.   6. The auxiliary wavelength conversion optical plate is disposed on the surface of the frame on the sunlight incident side so that light can be incident on the wavelength conversion optical plate. The solar cell panel of Claim 1.   The reflective member which reflects sunlight in the edge part side of the planar direction of the said wavelength conversion optical board was arrange | positioned between the said adjacent solar cell modules, The any one of Claims 1-5 characterized by the above-mentioned. Solar panel.   The solar cell panel according to any one of claims 1 to 7, further comprising a cooling fin on a side opposite to the sunlight incident side of the frame.   9. The solar cell panel according to claim 8, further comprising a thermoelectric element between the frame and the cooling fin.   The plurality of solar cell modules and a part or the whole of the frame in which the plurality of solar cell modules are arranged are covered with a translucent protective sheet or protective plate. The solar cell panel of Claim 1.   10. Each solar electric module is covered with a translucent protective sheet or protective plate, and each solar cell module covered with the protective sheet or protective plate is fixed to the frame. The solar cell panel as described in.

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