JP3154115U - Double-sided light receiving solar panel and solar panel power generator - Google Patents

Abstract

The present invention provides a light-receiving solar cell panel of a double-sided light receiving type whose manufacturing cost is reduced, and a solar cell panel power generator with high power generation efficiency using at least one solar cell panel. For a double-sided light receiving solar cell panel, a plurality of solar cell modules are arranged on the front and back surfaces of a rectangular support body with their light receiving surfaces facing outward. Configured. As for the solar panel power generation device, four double-sided light receiving solar panels 1... Are assembled in a cross shape or X shape in a side view, or three double-sided light receiving solar panel 1 ·· was configured by using a solar cell panel assembly assembled in a perpendicular direction in a side view. [Selection] Figure 1

Description

Detailed description of the invention

  The present invention relates to a double-sided light-receiving solar cell panel and a solar cell panel power generator including the solar cell panel.

Conventional technology

For example, as shown in FIG. 1 of Patent Document 1, the conventional solar cell panel is fixed by being spread on the roof with the light receiving surface facing upward and the back surface facing the roof surface. Thus, one solar cell panel has a surface that is a light receiving surface and a non-light receiving surface that is an attachment surface.
In patent document 2, it is comprised so that the direction of two solar cell panels may track a movement of the sun using a sensor, and also in this structure, the surface which is a light-receiving surface in a solar cell panel, There is a non-light-receiving surface which is a mounting surface.
That is, the conventional solar cell panel is a single-sided light receiving type.

By the way, if the weather environment and the installation direction are the same, the power generation amount by the solar cell panel is proportional to the area of one side of the panel, and the power generation amount varies depending on the size of the panel.
For this reason, in the case of requiring a large amount of power generation, or in order to generate power efficiently with respect to the movement of sunlight in one day, in a single-sided light receiving solar cell panel, the area per sheet is increased, As shown in FIG. 1 of Document 1, the number of solar cell panels used is increased, or the solar tracking device shown in Patent Document 2 is required.
JP 2001-27605 A Utility Model Registration No. 3086861

Problems that the device tries to solve

  As shown in FIG. 1 of Patent Document 1, when solar panels are spread over the entire surface of the roof, efficient power generation corresponding to changes in the direction of the sun during the day is performed, but the roof surface has an elevation angle of sunlight. It is not always aimed at. In addition, as described in Patent Document 2, there are many cases where a solar cell panel is not installed on the entire roof surface.

  In the solar light tracking device described in Patent Document 2, since the change in the direction of the solar panel is performed obliquely in the lateral direction, the power generation efficiency is inferior in that it receives sunlight obliquely.

An object of the present invention is to provide a double-sided light receiving solar cell panel that has a high power generation amount per sheet, is lightweight, and has a low manufacturing cost.
Another object of the present invention is to provide a solar panel power generation device with high power generation efficiency using at least one double-sided light receiving solar panel.

Means for solving the problem

The double-sided light receiving solar panel according to claim 1 of the present invention is
A feature is that a plurality of solar cell modules are respectively disposed on the front and back surfaces of a rectangular support with each light receiving surface facing outward.

As described above, when the solar cell modules are disposed on one side surface and the other side surface of the rectangular support body, a single double-sided light receiving solar cell panel is obtained. For example, when a double-sided solar cell panel is erected so that one side faces east and the other side faces south, it generates power in the morning and afternoon sun except for noon.
In addition, even if one side of the double-sided solar cell panel receives direct sunlight and the other side is shaded, the other side of the solar cell module does not mean that no power is generated. The power generation efficiency is inferior, but power is generated. That is, power generation is performed on both sides of the solar cell panel.

  The double-sided light receiving solar cell panel according to the present invention is applied from a small size to a large size. As a small solar cell panel, for example, a portable panel having a size of 30 cm square for using a personal computer, a mobile phone, a TV, a lighting device, etc. in the outdoors can be cited. A large-sized solar cell panel is used, for example, in a solar cell power generation apparatus that is installed on the roof of a building, the ground, or the like and used as part of a household power source or a commercial power source.

  In the solar cell panel according to claim 2 of the present invention, the support further includes a base member and a frame member that are stacked two times, and the solar cell module is formed of the base member that is stacked two times. They are arranged on the front and back surfaces, respectively.

Although the said base member is used in order to face and fix the back surface of a solar cell module also in the conventional solar cell panel, in the conventional solar cell panel, one base member was used.
In the solar cell panel according to claim 2 of the present invention, the solar cell module is fixed to the base member on each of the front surface and the back surface so that wiring connection on the back surface of the solar cell module can be performed easily and in a short time. For this purpose, a two-layer base composed of one each was used.

And in the solar cell panel concerning Claim 3 of this invention, in the solar cell panel of Claim 1 or 2, the said support body has a grid | lattice-like base member and a frame member, The said solar cell module Are respectively disposed on the front surface and the back surface of the base member. That is, this lattice-shaped base member may also have a single-sheet structure or a two-layer structure.
Since the lattice-shaped base member reduces the weight of the solar cell panel and has many gaps, wiring is easy and suppresses a temperature rise in the solar cell panel.

  And in the solar cell panel which concerns on Claim 4 of this invention, In the solar cell panel of any one of Claims 1 thru | or 3, The electrode of the said solar cell module and the said are on the surface and back surface of the said base member. The wiring connecting the output terminal of the photovoltaic power generation panel is fixed.

The wiring is fixed to the front and back surfaces of the single base member structure, and is fixed to the front and back surfaces of the double base member structure.
Examples of the fixing of the wiring include one obtained by printing a conductive metal material such as copper foil on the front and back surfaces of the base member, and one obtained by fixing a conductive metal foil film tape such as a copper plate.

  And in the solar cell panel which concerns on Claim 5 of this invention, in the solar cell panel of any one of Claims 1 thru | or 4, sunlight is given to at least one of the circumference | surroundings of the said solar cell module by the said solar cell. A reflector that reflects toward the module is provided.

  Examples of the reflector include a mirror and a thin metal plate having a glossy surface such as stainless steel, and the angle with respect to the surface of the solar cell module may be adjusted. It is also possible to fold the reflector toward the surface of the solar cell module to make a front cover when the solar cell panel is not used.

Claims 6 to 10 are devised solar cell power generation devices, and the solar cell power generation device according to claim 6 is a power generation device including a plurality of solar cell panels,
Each of the solar cell panels is a double-sided light-receiving solar cell panel according to any one of claims 1 to 5, and is assembled in a direction in which four pieces spread in a cross shape or an X shape in a side view. The solar cell panel assembly is characterized in that it is attached to the footrest.

  When the four double-sided light-receiving solar cell panels are assembled in a direction that spreads in a cross shape or an X shape, the sunlight from the daytime from morning to evening is received on at least two surfaces.

  Further, in the solar cell panel power generator according to claim 7, the solar cell assembly is further freely adjustable in rotation with the cruciform or X-shaped center as a fulcrum by driving the motor. -ing

  The four double-sided light-receiving solar panels assembled in a cross-shaped or X-shaped spreading direction generate power with high efficiency even in a fixed orientation. A solar cell panel power generator according to claim 3 of the present invention is configured to realize highly efficient power generation.

  Further, in the solar panel power generation device according to claim 8, the driving of the motor is further configured to temporarily drive every predetermined time by setting a timer, and the solar panel power generation device according to claim 9. Then, the drive of the said motor is set as the structure driven temporarily based on the detection signal of the sensor which detects the elevation angle of sunlight.

The motor is driven by setting the timer, for example, every hour.
As a sensor for detecting the elevation angle of sunlight, for example, a known optical sensor such as a sensor described in Patent Document 2 or an optical sensor described in JP-A-2006-114634 is used.
The drive of the motor is greatly reduced by a reduction gear, and the direction of the solar cell panel is changed minutely. For this reason, it is preferable to use a pulse motor as the motor.

And the solar cell panel power generator concerning Claim 10 is a power generator provided with a plurality of solar cell panels,
Each of the solar cell panels is erected in the vertical direction in a side view, and the single-sided light reception on each side of the double-sided solar cell panel according to any one of claims 1 to 5. A solar cell panel assembly, and a solar cell panel assembly that is assembled with the light-receiving surface of each single-sided light-receiving solar cell panel facing upward or obliquely upward, and is attached to the footrest There is a feature.

The solar cell power generation device according to claim 10 is a solar cell panel of a type in which the angle between the solar cell panels constituting the solar cell panel assembly is fixed, i.e., it is not added to the movement of sunlight in one day. It is a power generation device.
The solar cell panel assembly in the solar cell power generation apparatus according to claim 10 receives direct sunlight during daytime on at least two surfaces regardless of time.

Effect of device

According to the double-sided light receiving solar cell panel according to claim 1, it is possible to obtain a single solar cell panel that is lightweight and suppresses the manufacturing cost, and the double-sided light receiving solar cell according to claim 2. According to the panel, the wiring connection on the back surface of the solar cell module can be performed easily and in a short time. According to the double-sided light receiving solar cell panel according to claim 3, the solar cell panel can be further reduced in weight and wired. To suppress the temperature rise in the solar cell panel.
According to the double-sided light receiving solar cell panel according to claim 4, it is possible to further simplify the wiring structure with reduced manufacturing time. According to the double-sided light receiving solar cell panel according to claim 5, The power generation efficiency can be further improved by using the reflector.

  And according to the solar panel power generation device according to claim 7, the power generation efficiency is high in that the sunlight of the daytime is received by at least two surfaces of the solar panel, and the installation location can be used efficiently, According to the solar cell panel power generator according to claim 8, further, the solar cell panel can be oriented so as to receive the solar radiation most efficiently, and according to the solar cell panel power generator according to claim 9. By doing so, the orientation control of the solar panel corresponding to the movement of sunlight during the day can be realized with a low-cost and reliable configuration of motor drive control using a timer. is there.

  And according to the solar cell panel power generator concerning Claim 10, the said double-sided light reception type solar cell panel erected in the perpendicular direction, and the one single-sided light reception type solar cell panel located on both sides thereof Thus, it is possible to provide a solar cell panel power generation device having a high power generation efficiency while using a solar cell panel assembly with a low cost and small size.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described in detail in the following embodiment section.

FIG. 1 is a side sectional view showing a double-sided light receiving solar cell panel according to an embodiment of the present invention, FIG. 2 is a perspective view, and FIG. 3 is an exploded perspective view.
In the double-sided solar cell panel 1 shown in FIGS. 1 and 2, a plurality of solar cell modules 8 and 8 are disposed on the front and back surfaces of the rectangular support 2 with the respective light-receiving surfaces facing outward. Has been.
And the surface (light-receiving surface) of each positive cell module 8 and 8 is covered with the protective transparent materials 9 and 9 which consist of either a transparent glass plate, a transparent resin plate, etc.
As the solar cell modules 8, conventionally known rectangular modules are used. The words on the front surface and the back surface are contents expressing one side of one side and the other side of the other in simple terms, and in the figure, words for the A side and the B side are shown.

  The support 2 is composed of a base member 3 constituted by a plate surface and a frame member 7 having a U-shaped cross section, and wirings 4 are fixed to both surfaces of the base member 3. The output terminal (connector) 5 of the wiring 4 is fixed to one end edge of. An output terminal housing 6 into which the output terminal 5 is inserted is attached to the frame member 7 a facing the output terminal 5. Electrodes located on the back surfaces of the solar cell modules 8, 8 are connected to the wiring 4 in an overlapping manner, whereby the power generated by the solar cell modules 8, 8 is output to the output terminal 5. The wiring 4 and the electrodes of the solar cell modules 8 and 8 may be made by well-known electrical connections other than those described above.

  FIG. 4 is a side sectional view showing a solar cell panel using a two-layer base member, and a slight gap is provided in the two-layer stack to suppress the temperature rise in the solar cell panel 1. is there. In the large-sized solar battery panel 1, air is forcibly introduced into the inside by a fan provided on the side of the panel 1 or natural wind is introduced through a ventilator provided on the side of the panel 1 or the like. Thus, the internal temperature rise may be suppressed more efficiently.

  FIG. 5 is a perspective view showing another structure of the support body. The support body 2 shown in this figure has a grid 2c on the lower surface for easy wiring and weight reduction.

  FIG. 6 is a perspective view showing an example in which a reflector is disposed around the solar cell module. A reflector 60 is provided around the solar cell module 8 to collect reflected light from the sunlight in the solar cell module 8. Thus, more efficient power generation may be performed.

Fig.7 (a) is the perspective view which showed the outline | summary of the solar cell panel electric power generating apparatus which concerns on 1st Embodiment of this invention, (b) is the block diagram of the electric system.
As shown in FIG. 7 (a), according to this solar cell power generation device 50, the four double-sided solar cell panels 1, 1,... The solar cell panel assembly 10 is provided. The solar cell panel assembly 10 is rotatably supported by a case-like lower frame 31 via a rotation shaft 11 provided at the center position. A motor 21 is disposed in one side of the lower frame 31, and a small-diameter spur gear 20 attached to the drive shaft tip of the motor 21 and a large-diameter flat gear attached to the tip of the rotary shaft 11. The gear 19 is engaged.

  The lower frame 31 is further supported by the base base 32 below the base frame 32 so as to be horizontally rotatable, thereby forming a leg base 30. A motor 16 is disposed in the lower portion of the lower frame 31, and a small-diameter spur gear 17 attached to the drive shaft tip of the motor 16 and a large-diameter flat gear fixed to the axial center position of the base base 31. The gear 15 is meshed.

The electric circuit of this solar cell panel power generator 50 is shown in FIG. 7B, for example.
According to FIG. 7 (b), the solar cell panel 1 and the series / parallel switching circuit 22 are connected by an electric signal line, and the series / parallel switching circuit 22 includes a secondary battery 23 and a DC / AC conversion circuit 24. Each is connected by an electric signal line, and the DC / AC conversion circuit 24 and the controller 25 are connected by an electric signal line. The controller 10 is connected with a power supply timer circuit 26 that automatically turns off the power supply at night, an optical sensor 27, and an operation panel 28 via electric signal lines. 21 is driven by a manual switch operation. Equipped with switches and power switches.

  The direct current generated by the solar cell panel 1 is converted into an alternating current by the direct current / alternating current conversion circuit 24 and transmitted to the controller 25 so that it can be externally output. The surplus DC current generated by the solar cell panel 1 is stored in the secondary battery 24 and is appropriately output from the secondary battery 24 toward the DC / AC conversion circuit 24.

8 and 9 both show the upper part of the solar cell power generation apparatus according to the first embodiment in a side sectional view.
As shown in these figures, the direction of sunlight during the daytime changes with time, but the four double-sided solar cell panels 1, 1,... Are shown in FIG. Even if the state stopped in the orientation is maintained, at least two single-sided solar cell panels 1, 1... Receive direct sunlight, so that highly efficient power generation is performed. In particular, since the adjacent light receiving surfaces are perpendicular to each other, the double-sided light receiving solar cell panels 1 and 1 at an angle of 90 ° receive direct sunlight and its reflected light to further improve the power generation efficiency. .

  In a more preferable form, as shown in FIG. 7 (a), the orientation of the solar cell panel assembly 10 is changed by driving the motor 21 to follow the inclination of sunlight during the day. When the motor 16 is driven to follow the slope of sunlight that varies depending on the season, more efficient power generation is performed.

FIG. 10 is a schematic view of a solar cell panel power generator according to a second embodiment of the present invention, and FIG. 11 is a side sectional view of the characteristic part.
In the solar cell power generation device 51 of the second embodiment, the solar cell panel assembly 10 includes a double-sided light-receiving solar cell panel 1 that is erected in the vertical direction in a side view and 120 ° on each side. A single-sided light receiving solar cell panel 1A, 1A positioned in an inclined direction is assembled.
The light-receiving surfaces of the single-sided light-receiving solar cell panels 1A and 1A are obliquely upward, and the directions of the double-sided light-receiving solar cell panel 1 and the single-sided light-receiving solar cell panels 1A and 1A are both fixed directions.
The solar panel assembly 10 in this direction efficiently generates power from morning to afternoon.

FIG. 12 is a schematic view of a solar panel power generator according to a third embodiment of the present invention.
In the solar cell power generation device 52 of the third embodiment, the solar cell panel assembly 4 includes a double-sided light-receiving solar cell panel 1 erected in the vertical direction in side view, The single-sided light-receiving solar cell panels 1A and 1A oriented in a right angle (horizontal) are assembled, and the directions of these double-sided light-receiving solar cell panels 1A and 1A are fixed directions. It is.
The solar cell panel assembly 4 in this direction efficiently generates power from morning to afternoon.

Side surface sectional drawing of the double-sided light reception type solar cell panel which concerns on this invention embodiment. Similarly perspective view. Similarly disassembled perspective view. Side surface sectional drawing of the solar cell panel using the base member of 2 sheets pile. The perspective view of the support body by another structure. The perspective view which showed the example which has arrange | positioned the reflecting plate around the positive battery module. (A) is the perspective view which showed the outline | summary of the solar cell panel electric power generating apparatus which concerns on 1st Embodiment of this invention, (b) is the block diagram of the electric system. Side surface sectional drawing which showed the upper part of the solar cell panel electric power generating apparatus by 1st Embodiment. Side surface sectional drawing which showed the upper part of the solar cell panel electric power generating apparatus by 1st Embodiment. The schematic diagram of the solar cell power generation device concerning a 2nd embodiment of the present invention. Side surface sectional drawing of the characteristic part similarly. The schematic diagram of the solar cell power generation device concerning a 3rd embodiment of the present invention.

DESCRIPTION OF SYMBOLS 1 Double-sided light reception type solar cell panel 1A Single-sided light reception type (conventional type) solar cell panel 2 Support body 3 Base member 4 Frame member 8 Solar cell module 9 Protective transparent material (transparent glass plate)
50 Solar Panel Power Generator 51 (of the First Embodiment) Solar Panel Power Generator 52 (of the Second Embodiment) Solar Panel Power Generator of the Third Embodiment

Claims (10)

  A double-sided solar cell panel, wherein a plurality of solar cell modules are respectively disposed on the front and back surfaces of a rectangular support with each light-receiving surface facing outward.   The said support body has a base member and frame member of 2 sheets, and the said solar cell module is each arrange | positioned at the surface and back surface of the said base member which overlapped 2 sheets. Solar panel.   The solar cell panel according to claim 1 or 2, wherein the support includes a lattice-like base member and a frame member, and the solar cell module is disposed on a front surface and a back surface of the base member, respectively. .   The solar cell according to any one of claims 1 to 3, wherein a wiring for connecting an electrode of the solar cell module and an output terminal of the photovoltaic power generation panel is fixed to a front surface and a back surface of the base member. panel.   The solar cell panel according to any one of claims 1 to 4, wherein a reflector that reflects sunlight toward the solar cell module is provided on at least one of the periphery of the solar cell module. A power generation device including a plurality of solar battery panels,
Each of the solar cell panels is a double-sided light-receiving solar cell panel according to any one of claims 1 to 5, and is assembled in a direction in which four pieces spread in a cross shape or an X shape in a side view. A solar panel power generation device, characterized in that the solar cell panel assembly is attached to the footrest.   The solar cell panel power generator according to claim 6, wherein the solar cell assembly is freely adjustable in rotation with the center of the cross shape or X shape as a fulcrum by driving of a motor.   The solar cell power generation device according to claim 7, wherein driving of the motor is configured to be temporarily driven every predetermined time by a timer setting.   The solar cell power generation apparatus according to claim 7, wherein the motor is driven temporarily based on a detection signal of a sensor that detects an elevation angle of sunlight. A power generation device including a plurality of solar battery panels,
Each of the solar cell panels is erected in the vertical direction in a side view, and the single-sided light reception on each side of the double-sided solar cell panel according to any one of claims 1 to 5. A solar cell panel assembly, and a solar cell panel assembly that is assembled with the light-receiving surface of each single-sided light-receiving solar cell panel facing upward or obliquely upward, and is attached to the footrest A solar panel power generator characterized by comprising:

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