JP2002158368A - Solar battery module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar battery module provided with both of a light- transmitting function and a both-side power generation function. SOLUTION: Solar cells 2, 2,... of a both-side power generation type are arranged with light-transmission parts 2b, 2b,... provided between each of them, and a light reflection panel 6 provided with light passing-through parts 6a, 6a,... is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a solar cell module having a light transmitting function.

[0002]

2. Description of the Related Art A solar cell module having a light transmitting function is used as a window material or a skylight material. FIG. 13 is a longitudinal sectional view showing a configuration of a conventional solar cell module having a light transmitting function.

[0003] In the drawing, reference numeral 2a denotes a solar cell element, which is formed by separating several to several tens of solar cell elements 2a, 2a, ... into light-transmitting portions 2b, 2b, ... for transmitting sunlight. Are arranged. The areas of the light transmitting portions 2b, 2b,... Are determined in consideration of the required amount of collected light. The solar cell elements 2a, 2
are connected in series or in parallel using the wiring 7 so that they can be connected to a terminal box from which the power generated by the solar cell elements 2a, 2a,.

[0004] The connected solar cell elements 2a, 2a,
Are sandwiched by a translucent synthetic resin sheet 3 (for example, an EVA resin sheet), and the outside thereof is sandwiched by a translucent plate 1 using a translucent tempered glass material and a translucent film 4 using a transparent plastic film. , Thermocompression bonding, synthetic resin sheet 3
Are crosslinked, cured, and integrated, and the periphery of the light transmitting plate 1 and the light transmitting film 4 is fitted into a frame 5 made of aluminum to form a solar cell module.

When the above-described solar cell module is used as a window material, the light-transmitting plate 1 is used in a vertical position facing the sun rays 8. At this time, the solar cell elements 2a, 2a,... Use the solar rays 8 for power generation and shut off, but the light transmitting plate 1 and the light transmitting film 4 transmit the sunlight 8 with almost no attenuation. Lighting from the sections 2b, 2b,.

On the other hand, a solar cell module having a double-sided power generation function is also known. FIG. 14 is a longitudinal sectional view showing a configuration of a conventional solar cell module having a double-sided power generation function.

The solar cell module is a solar cell module having a light-transmitting function as described above.
A light reflecting plate 6 using an aluminum plate having the same shape and area as the light-transmitting film 4 not covered with the frame 5 is used instead of the solar cell elements 2, 2,. ,
It is bonded to the light transmitting film 4 using a light transmitting adhesive (for example, polyurethane resin). Others
The same parts as those in FIG. 13 are denoted by the same reference numerals, and description thereof will be omitted.

When the solar cell module as described above is used as a window material, it is used vertically with the light transmitting plate 1 side facing the sun rays 8. At this time, the sunlight 8 enters the solar cell elements 2, 2,... And contributes to power generation, and the sunlight 8 transmitted through the light-transmitting plate 1 and the light-transmitting film 4 is reflected by the light reflecting plate 6 and .. Are incident on the back surfaces of the elements 2, 2,... And contribute to power generation, thereby enabling double-sided power generation.

[0009]

A conventional solar cell module having a light-transmitting function shown in FIG. 13 includes light-transmitting portions 2b, 2b,
, The ratio of the area of the solar cell elements 2a, 2a,... To the area of the solar cell module is limited, the power generation efficiency is low, and the conventional solar cell module having the dual-sided power generation function of FIG. When the entire surface on the light transmitting film 4 side is covered with the light reflecting plate 6 for effective use, there is a problem that lighting cannot be performed.

The present invention has been made to solve such a problem, and a plurality of light reflecting members of a solar cell module having a double-sided power generation function are arranged at intervals so that a part of the incident solar rays can be obtained. Passes between the light reflecting member and the light reflecting member and contributes to daylighting, and a part of sunlight reflected by the light reflecting member enters the back surface of the solar cell element and contributes to power generation, and It is an object of the present invention to provide a solar cell module that can effectively use the function and the double-sided power generation function.

Another object of the present invention is to provide a light reflecting member of a solar cell module having a double-sided power generation function, wherein a part of the incident sunlight passes through the light passing part to receive light. And a part of the sunlight reflected by the light reflecting member is incident on the back surface of the solar cell element and contributes to the power generation, thereby providing a solar cell module capable of effectively utilizing the light transmission function and the double-sided power generation function. It is in.

Another object of the present invention is to provide a solar cell module capable of seeing through the outdoors from the indoor side or the indoors from the outdoor side by providing a light passing portion at a position not shielded by the solar cell element. To provide.

[0013] Another object of the present invention is to provide a solar cell which can be prevented from seeing outdoors from the indoor side or indoors from the outdoor side by providing a light passage portion at a position shielded by the solar cell element. To provide modules.

[0014]

The solar cell module according to the first invention comprises a plurality of double-sided power generation solar cell elements.
In a solar cell module arranged in a plane with an interval to be a light transmitting portion, a plurality of light reflecting members are arranged separately on one surface side of the solar cell element.

[0015] A solar cell module according to a second aspect of the present invention is characterized in that the light reflecting member has an area larger than the solar cell element and is arranged so as to overlap with each of the solar cell elements.

[0016] A solar cell module according to a third aspect of the present invention is characterized in that the light reflecting member is disposed so as to overlap the light transmitting portion.

A solar cell module according to a fourth aspect of the present invention is a solar cell module in which a plurality of double-sided power generation type solar cell elements are arranged in a plane with an interval serving as a light transmitting portion. A light reflecting member provided with a light transmitting portion for transmitting light is disposed on one side of the light reflecting member.

The solar cell module according to a fifth aspect of the present invention is characterized in that the light passing portion is provided at a position where a part or all of the light passing portion overlaps the light transmitting portion.

A solar cell module according to a sixth aspect is characterized in that the light passing portion is provided at a position shielded by the solar cell element.

In the first invention, a light passing portion is formed between the light reflecting member and the light reflecting member, and a part of the incident solar ray is incident on the surface of the solar cell element to contribute to power generation, The other part of the sun ray passes through the light transmitting part, a part of the sun ray transmitted through the light transmitting part passes through the light passing part and contributes to lighting, and the other part of the sun ray enters the light reflecting member. Then, part of the sunlight reflected by the light reflecting member is incident on the back surface of the solar cell element and contributes to power generation, and the other part of the sunlight is reflected by the back surface of the solar cell element and passes through the light passage portion. The light transmission function and the double-sided power generation function can be effectively used by contributing to lighting.

According to the second aspect of the present invention, since the light reflecting member does not overlap with the entire light transmitting portion, it is possible to see through the light transmitting portion from the indoor side to the outdoor or from the outdoor side to the indoor.
In addition, when the light passing portion generated between the light reflecting member and the light reflecting member is located at a position where the sunlight is incident, a portion of the sunlight passing through the light transmitting portion passes through the light without entering the light reflecting member. Since the light passes through the section, direct light can be collected.

Further, when the light passing portion is covered by the shadow of the solar cell element, a part of the sunlight passing through the light transmitting section does not directly enter the light transmitting section and the light reflecting member and the back surface of the solar cell element. Diffuse reflection between the light source and part of the diffusely reflected sunlight passes through the light passage and contributes to daylighting. The light transmission function and the double-sided power generation function can be used effectively without reduction.

According to the third aspect of the present invention, since the light reflecting member overlaps the entire light transmitting portion, it is possible to prevent the outside from the indoor side or the inside from the outdoor side. In addition, when the light passing portion generated between the light reflecting member and the light reflecting member is covered by the shadow of the solar cell element, a part of the sunlight passing through the light transmitting portion does not directly enter the light transmitting portion. Irregularly reflected between the reflective member and the back surface of the solar cell element, part of the diffusely reflected sunlight passes through the light passage portion and contributes to lighting, so that it does not collect direct light, it collects indirect light, In addition, the light transmission function and the double-sided power generation function can be effectively used with almost no decrease in the amount of power generation by daylighting.

Further, when the light passing portion is located at a position where sunlight is incident, a portion of the sunlight passing through the light transmitting portion passes through the light passing portion without entering the light reflecting member.
It can receive direct light.

In the fourth aspect of the invention, a part of the incident sunlight is incident on the surface of the solar cell element to contribute to power generation, and the other part of the sunlight transmits through the light transmitting part, A part of the sunlight passing through the light-passing part contributes to lighting, the other part of the sunlight enters the light reflection member, and a part of the sunlight reflected by the light reflection member is a solar cell element. Incident on the back surface of the solar cell element to contribute to power generation, the other part of the solar ray is reflected by the back surface of the solar cell element, passes through the light passing portion and contributes to daylighting, effectively enabling the light transmission function and the double-sided power generation function. Available. Further, by providing the light transmitting portion on one light reflecting member, the manufacturing process can be simplified.

In the fifth aspect, since the light passing portion is not shielded by the solar cell element, it is possible to see through the light transmitting portion from the indoor side to the outdoor or from the outdoor side to the indoor.
In addition, when the light passage portion is located at a position where sunlight is incident,
Part of the sunlight passing through the light-transmitting portion passes through the light-passing portion without entering the light-reflecting member, so that direct light can be collected.

When the light transmitting portion is covered by the shadow of the solar cell element, a part of the sunlight passing through the light transmitting section does not directly enter the light transmitting section, and the light reflecting member and the back surface of the solar cell element are not covered. Light is diffused and reflected, and a part of the diffused sunlight passes through the light passage and contributes to lighting, so indirect light is collected without collecting direct light, and the amount of power generation is reduced by lighting. Thus, the light transmission function and the double-sided power generation function can be used effectively.

According to the sixth aspect, since the light passage portion is shielded by the solar cell element, it is possible to prevent seeing from the indoor side to the outside or from the outdoor side to the indoor. In addition, when the light passing portion is covered by the shadow of the solar cell element, a part of the sunlight passing through the light transmitting section does not directly enter the light transmitting section and is between the light reflecting member and the back surface of the solar cell element. Irregularly reflected, part of the diffusely reflected sunlight passes through the light passage part and contributes to daylighting, so indirect light is collected without collecting direct light,
In addition, the light transmission function and the double-sided power generation function can be effectively used with almost no decrease in the amount of power generation by daylighting.

Further, when the light passing portion is located at a position where the sunlight is incident, a part of the sunlight passing through the light transmitting portion passes through the light passing portion without being incident on the light reflecting member. Can be lit.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings showing the embodiments. Embodiment 1. FIG. 1 is a plan view showing a configuration of a solar cell module according to Embodiment 1 of the present invention, and FIG.
FIG. 2 is a sectional view taken along line II-II of FIG.

Several to several tens of solar cell modules of the double-sided power generation type (for example, HIT solar cell elements)
, Between the solar cell elements 2, 2,... And the solar cell elements 2, 2,.
Are regularly and planarly arranged in the row direction and the column direction with an interval of 1 times the translucent portions 2b. The solar cell elements 2, 2,...
(For example, an EVA resin sheet), the outside of which is sandwiched between a light-transmitting plate 1 using a light-transmitting tempered glass material and a light-transmitting film 4 using a transparent plastic film, subjected to thermocompression bonding, and subjected to a synthetic resin sheet. The light-transmitting plate 1 and the light-transmitting film 4 are fitted into a frame 5 made of aluminum.

The light reflecting plates 6, 6,...
An aluminum plate having an area of 1.1 to 2 times that of 2,
A light-transmissive film 4 made of a plastic plate or the like, having a diffusely reflecting surface, and using a light-transmitting adhesive (for example, polyurethane resin) with the centers of the respective solar cell elements 2, 2,.
Are bonded by the same number as the solar cell elements 2, 2,. The area of the light transmitting plates 2b, 2b,... And the area of the light reflecting plates 6, 6,. Decide in consideration.

The solar cell elements 2, 2,...
(For example, a connecting copper plate conductive wire solder-plated on a copper plate) and connected in series or in parallel, and connected to a terminal box 9 for taking out the power generated by the solar cell elements 2, 2,. I have.

When the above-described solar cell module is used as a window material, the light-transmitting plate 1 is used in a vertical position facing the sun rays 8. At this time, the surfaces of the solar cell elements 2, 2,... Are cut off by using the solar rays 8 for power generation, but the translucent plate 1 and the translucent film 4 transmit the solar rays 8 almost without attenuating. Since a part of the sunlight 8 incident from the light parts 2b, 2b,... Is reflected by the light reflecting plates 6, 6,. The solar cell module can generate power on both sides.

A part of the sunlight 8 entering from the light transmitting portions 2b, 2b,... Passes through the light passing portions 6a, 6a,. To do
The solar cell module can receive direct light.
Also, the light transmitting portions 2b, 2b,... And the light transmitting portions 6a, 6a,
Can be seen from the indoor side to the outside or from the outdoor side to the inside. Furthermore, since the back surfaces of the solar cell elements 2, 2, ... are hidden behind the light reflecting plates 6, 6, ... from the indoor side, the aesthetic appearance of the solar cell module is improved.

The light-transmitting film 4 is usually a light-transmitting film thinner than the light-transmitting plate 1 in order to suppress the thickness of the entire solar cell module. When a sheet, a light-transmitting plate, or the like is used, the distance between the solar cell elements 2, 2,... And the light reflecting plates 6, 6,. And the power generation efficiency is improved.

Embodiment 2 FIG. 3 is a plan view showing a configuration of a solar cell module according to Embodiment 2 of the present invention,
FIG. 4 is a sectional view taken along line IV-IV in FIG. The solar cell module has substantially the same shape and area as the translucent film 4 fitted in the frame 5 instead of the light reflecting plates 6, 6,... Of the solar cell module according to the first embodiment described above. A light reflection plate 6 b provided with a plurality of holes having an appropriate hole diameter and an appropriate aperture ratio as light passing portions is bonded to the light transmitting film 4.

Depending on the material of the light reflecting plate 6b, the hole diameter of the light passing portion of the light reflecting plate 6b may be selected depending on the material of the light reflecting plate 6b, such as the ease of drilling, the size of the drilling jig, and the prevention of deformation during drilling. Determined in consideration of conditions. Further, the aperture ratio of the light reflecting plate 6b is determined in consideration of conditions such that the outdoor scenery can be viewed from the indoor side and a sufficient amount of collected light and power generation can be secured. For example, a hole diameter of 0.5 to 5 is formed on an aluminum plate having a thickness of 50 to 200 μm.
mm holes are provided at an aperture ratio of 20 to 50%. The light passing portion is provided on the entire surface of the light reflecting plate 6b, but the solar cell elements 2, 2,.
It does not have to be provided at a position overlapping with. In addition, the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

When the above-described solar cell module is used as a window material, the light-transmitting plate 1 is used in a vertical position facing the sun rays 8. At this time, the surfaces of the solar cell elements 2, 2,... Are cut off by using the solar rays 8 for power generation, but the translucent plate 1 and the translucent film 4 transmit the solar rays 8 almost without attenuating. Since a part of the sunlight 8 incident from the light parts 2b, 2b,... Is reflected on the light reflecting plate 6b and is incident on the back surfaces of the solar cell elements 2, 2,. Double-sided power generation becomes possible. In addition, since a part of the sunlight 8 incident from the light transmitting portions 2b, 2b,... Passes through the light passing portion and enters the room, the solar cell module can receive direct light. In addition, the light transmitting section 2
b, 2b, ... and from the indoor side to the outdoor through the light passage section,
Alternatively, it is possible to see through the indoor from the outdoor side.

The solar cell module comprises a light reflecting plate 6b
However, since a single member is used, the manufacturing process is simplified.
The light reflection plate 6b may be fitted and attached to the frame 5. At this time, the light reflecting plate 6b may be in close contact with the light transmitting film 4 or may be placed at an appropriate distance from the light transmitting film 4. When the distance between the solar cell elements 2, 2,... And the light reflecting plate 6b is increased, the amount of light incident on the solar cell elements 2, 2,.

Embodiment 3 FIG. 5 is a plan view showing a configuration of a solar cell module according to Embodiment 3 of the present invention,
FIG. 6 is a sectional view taken along line VI-VI of FIG.

The solar cell element 2 of the solar cell module
, Are arranged in a row in a row with almost no space between the solar cell elements 2, 2,... To form a horizontal solar cell element row, and between the solar cell element row and the solar cell element row. Are arranged in a plane so as to be spaced apart from each other in the vertical direction. The area of the light transmitting portions 2b, 2b,.
The determination is made in consideration of the required amount of collected light.

The frame 5 has a portion for fixing the solar cell elements 2, 2,... Sealed between the light transmitting plate 1 and the light transmitting film 4, and There is provided a portion for fitting the light reflection plate 6 to the light transmitting film 4 side with an appropriate distance therebetween. The distance between the solar cell elements 2, 2,... And the light reflecting plate 6 depends on the thickness of the entire solar cell module and the case where the distance between the solar cell elements 2, 2,. Are determined in consideration of the power generation efficiency and the like that are improved by increasing the amount of incident light on the solar cell elements 2, 2,.

The light reflecting plate 6 is, for example, an aluminum plate having the same shape and the same area as the light transmitting film 4.
a, 6a,... are provided. The light passing portions 6a, 6
a,... have a slit shape that is long in the lateral direction, the length is substantially equal to the length of the solar cell element row, and the width is the light transmitting portion 2b,
2b,..., The amount of power generation on the front and back surfaces of the solar cell element, the amount of collected light, and the like. Also, the light reflection plate 6
Are arranged so that the direct light of the sunlight 8 transmitted through the light transmitting portions 2b, 2b,... Does not enter, and the light passing portions 6a, 6a,.
Are mounted on the frame 5 so as not to be shielded by the solar cell elements 2, 2,. In addition, the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

When the above-described solar cell module is used as a window material, the light-transmitting plate 1 is used in a vertical position facing the sun rays 8. At this time, the surfaces of the solar cell elements 2, 2,... Are cut off by using the solar rays 8 for power generation, but the translucent plate 1 and the translucent film 4 transmit the solar rays 8 almost without attenuating. The direct light of the sunlight 8 incident from the light parts 2b, 2b,... Is reflected by the light reflection plate 6 and is incident on the back surfaces of the solar cell elements 2, 2,. The solar cell module can generate power on both sides with almost no reduction.

The light reflection plate 6 and the solar cell elements 2, 2,
Since a part of the sunlight 8 irregularly reflected with the back surface of the solar cell module passes through the light passing portions 6a, 6a, and enters the room, the solar cell module emits indirect light without collecting direct light. It becomes possible to daylight. Further, the light transmitting portions 2b, 2
.. and the light passing sections 6a, 6a,..., it is possible to see the outdoors from the indoor side or the indoors from the outdoor side. Also, from the indoor side, the back surfaces of the solar cell elements 2, 2, ... are hidden by the back surface of the light reflection plate 6, so that the aesthetic appearance of the solar cell module is improved. Further, since the light reflecting plate 6 is formed using one member, the manufacturing process is simplified.

Embodiment 4 FIG. 7 is a plan view showing a configuration of a solar cell module according to Embodiment 4 of the present invention,
FIG. 8 is a sectional view taken along line VIII-VIII in FIG.

In the solar cell module, light passing portions 6a, 6a,... Are shielded by solar cell elements 2, 2,. And a light reflection plate 6 attached to the frame 5. In addition, the same portions as those in the third embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The solar cell module as described above can be prevented from seeing from the indoor side to the outside or from the outdoor side to the indoor through the light transmitting portions 6a, 6a,... And the light transmitting portions 2b, 2b,. , The light reflecting plate 6 and the solar cell elements 2, 2,.
A part of the light diffusely reflected between the light transmitting portions 6a and 6
a, ..., can be used as a wall material or a roof material capable of daylighting. The shape of the light passing portions 6a, 6a,... Is not limited to the slit shape as in the third embodiment, but may be a square, a circle, or the like provided at a position corresponding to the arrangement of each solar cell element 2, 2,. .

Embodiment 5 FIG. 9 is a plan view showing a configuration of a solar cell module according to Embodiment 5 of the present invention,
FIG. 10 is a cross-sectional view taken along line XX of FIG.

The solar cell module has a light reflection plate in which re-reflection plates 6c, 6c,... Are provided between the light transmission plate 4 and the light reflection plate 6 of the solar cell module of the third embodiment. A plate 6 is provided. The re-reflectors 6c, 6c,...
Are also light reflecting members, and each of the slit-shaped light passing portions 6a, 6
When a,... are formed, one side in the vertical direction and two sides in the horizontal direction are cut and bent at a right angle along the remaining one side in the vertical direction. At this time, the re-reflecting plates 6c, 6c,... Are provided above the light passing portions 6a, 6a,.
In addition, the same portions as those in the third embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The solar cell module as described above includes the re-reflectors 6c and 6c among the solar rays 8 reflected by the light reflector 6.
When there is no c,..., the sunlight 8 returning from the light transmitting portions 2b, 2b,... to the outdoor side is further reflected by the re-reflectors 6c, 6c,. be able to. For this reason, the amount of light incident on the solar cell elements 2, 2,... Is increased, and the power generation efficiency is improved. Also, the re-reflection plate 6c,
By bonding and integrating the light reflecting plate 6 and the light transmitting film 4 via 6c,..., The strength of the entire solar cell module is improved.

Embodiment 6 FIG. 11 is a plan view showing a configuration of a solar cell module according to Embodiment 6 of the present invention, and FIG. 12 is a cross-sectional view taken along line XII-XII of FIG.

The solar cell module comprises the solar cell elements 2, 2,... Of the solar cell module of the fifth embodiment described above.
Are vertically arranged, and the light-transmitting portions 2b, 2b,... And the light-passing portions 6a, 6a,. In addition, the same portions as those in the fifth embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The solar cell module as described above is used vertically as the window material on the east side of the building with the light transmitting plate 1 side facing the solar rays 8 and the solar rays 8 incident from east, southeast, and south. The light is reflected by the light reflection plate 6 and the re-reflection plates 6c, 6c,. For this reason, the amount of light incident on the solar cell elements 2, 2,... Is increased, and the power generation efficiency is improved. Note that a similar solar cell module may be used as a window material on the west side of the building.

[0056]

According to the solar cell module of the present invention,
By arranging a plurality of light reflecting members of a solar cell module having a double-sided power generation function at an interval, a light passing portion is generated between the light reflecting members and the light reflecting members, and a part of the incident solar rays is reflected by the sun. Light incident on the surface of the battery element and contributing to power generation, the other part of the sunlight transmits through the light-transmitting part, and part of the sunlight transmitted through the light-transmitting part passes through the light transmitting part and contributes to lighting. The other part of the sunlight is incident on the light reflecting member, a part of the sunlight reflected by the light reflecting member is incident on the back surface of the solar cell element and contributes to power generation, and the other part of the sunlight is the sun. The light is reflected by the back surface of the battery element, passes through the light passage portion, and contributes to daylighting, so that the light transmission function and the double-sided power generation function can be effectively used.

Further, by providing a light transmitting portion on the light reflecting member of the solar cell module having the double-sided power generation function, a part of the incident sunlight is incident on the surface of the solar cell element and contributes to the power generation. The other part of the light beam passes through the translucent part,
Part of the sunlight transmitted through the light-transmitting part passes through the light-passing part and contributes to daylighting, and the other part of the sunlight enters the light-reflecting member, and part of the sunlight reflected by the light-reflecting member is Light incident on the back surface of the solar cell element and contributes to power generation, the other part of the solar ray is reflected by the back surface of the solar cell element and passes through the light passing portion to contribute to daylighting. Can be used effectively. At this time, the manufacturing process can be simplified by providing the light transmitting portion on one light reflecting member.

Further, by providing the light passing portion so that the direct sunlight enters, the direct light is collected and the light transmitting function and the double-sided power generating function can be effectively used. In addition, by providing a light passing portion so as to be covered by the shadow of the solar cell element, it does not collect direct light, collects indirect light, and has a light-transmitting function with almost no reduction in power generation amount. The two-sided power generation function can be used effectively.

Further, by providing the light transmitting portion so as to overlap with the light transmitting portion, it is possible to see the outdoors from the indoor side or the indoors from the outdoor side. In addition, by providing the light passage portion so as to be shielded by the solar cell element, it is possible to prevent the outside from the indoor side or the inside from the outdoor side.

Further, by hiding the back surface of the solar cell element with a light reflecting member, the appearance can be improved. Furthermore,
By changing the shape and arrangement of the light reflecting member, or changing the shape and arrangement of the light passing portion provided in the light reflecting member, a window material,
The present invention has excellent effects, for example, it can be used for various purposes such as skylight materials, wall materials, and roof materials.

[Brief description of the drawings]

FIG. 1 is a plan view showing a configuration of a solar cell module according to Embodiment 1 of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a plan view showing a configuration of a solar cell module according to Embodiment 2 of the present invention.

FIG. 4 is a sectional view taken along line IV-IV of FIG.

FIG. 5 is a plan view showing a configuration of a solar cell module according to Embodiment 3 of the present invention.

FIG. 6 is a sectional view taken along line VI-VI of FIG. 5;

FIG. 7 is a plan view showing a configuration of a solar cell module according to Embodiment 4 of the present invention.

FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 7;

FIG. 9 is a plan view showing a configuration of a solar cell module according to Embodiment 5 of the present invention.

FIG. 10 is a sectional view taken along line XX of FIG. 9;

FIG. 11 is a plan view showing a configuration of a solar cell module according to Embodiment 6 of the present invention.

FIG. 12 is a sectional view taken along line XII-XII in FIG. 11;

FIG. 13 is a longitudinal sectional view showing a configuration of a conventional solar cell module having a light transmitting function.

FIG. 14 is a longitudinal sectional view showing a configuration of a conventional solar cell module having a double-sided power generation function.

[Explanation of Signs] 2 solar cell element 2b light transmitting portion 6 light reflecting plate 6a light transmitting portion 6b light reflecting plate

Claims (6)

[Claims] 1. A plurality of double-sided power generation solar cell elements,
A solar cell module having a plurality of light reflecting members spaced apart from one surface side of the solar cell element, wherein the plurality of light reflecting members are spaced apart from each other in a planar manner with an interval serving as a light transmitting portion. 2. The solar cell module according to claim 1, wherein the light reflecting member has an area larger than the solar cell element, and is arranged so as to overlap with each of the solar cell elements. 3. The solar cell module according to claim 1, wherein the light reflecting member is disposed so as to overlap with the light transmitting part. 4. A plurality of double-sided power generation solar cell elements,
In a solar cell module arranged in a plane with an interval to be a light transmitting section, a light reflecting member provided with a light passing section for transmitting light is arranged on one surface side of the solar cell element. A solar cell module, comprising: 5. The solar cell module according to claim 4, wherein the light transmitting portion is provided at a position where part or all of the light transmitting portion overlaps the light transmitting portion. 6. The solar cell module according to claim 4, wherein the light passing portion is provided at a position shielded by the solar cell element.