TWI663370B - Module supporting apparatus and solar battery apparatus - Google Patents

Abstract

The invention provides a module support device and a solar cell device capable of enabling a large and one solar cell module in which a plurality of solar cell panels are arranged to track the sun, thereby reducing costs. The module supporting device of the present invention is configured with: a base 18 that fixes the module supporting device 10 to the ground; a rotating body 20 that rotates horizontally with respect to the base 18; and a horizontal rotation driving means 22, which rotates the rotating body 20; support 24, which supports the center of gravity of the solar cell module 16, up and down rotation driving means 26, which rotates the solar cell module 16 in the vertical direction; and control device 28, which controls horizontal rotation Driving of the driving means 22 and the vertical rotation driving means 26.

Description

Module support device and solar battery device

The invention of the present invention relates to a module support device for supporting a solar cell module in which a plurality of solar cell panels that are irradiated with sunlight to generate electricity are arranged in a flat plate shape, and a solar cell device including the module support device.

Conventionally, a solar cell device that uses a plurality of solar panels to generate electricity is well known. Each commercially available solar panel (with a size of about 1.4 to 2.0 m × 0.8 to 1.1 m) generates about 200 w of electricity. In order to carry out power generation using solar panels as a business, a minimum of 10 kw is required, so a minimum of about 50 solar panels is required. In order to improve the power generation efficiency, it is preferable to make the solar panel track the sunlight by the driving means of the supporting device that supports the solar panel. However, the weight of each solar cell panel is about 10 to 20 kg. In the case of a solar cell module in which about 50 solar cell panels are arranged in a flat plate shape, one module is about 500 kg to 1 ton. . Therefore, the load applied to the supporting device is large, and it is difficult to make a solar cell module formed by arranging 50 solar panels in a flat plate shape to track sunlight with one driving means.

Therefore, it is performed to track the sun every one or several solar panels (for example, refer to patent document 1). However, in order to track the sun for each solar panel or several solar panels, multiple tracking driving methods are required, and the cost of the solar cell device increases. [Prior Art Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2001-291890

[Problems to be solved by the invention]

The object of the invention of the present invention is to provide a module support device and a solar cell capable of arranging a large solar cell module in which a plurality of solar cell panels are arranged in a flat plate to track the sun without requiring multiple tracking driving means, thereby reducing costs. Device. [Technical means to solve the problem]

The module supporting device of the present invention supports the solar cell module formed by arranging a plurality of solar cell panels in a flat plate shape, so that the solar cell module tracks the sun, so that the solar cell module is horizontally and vertically. A directional rotator is characterized by comprising: a base that is fixed to the ground; a rotating body that rotates horizontally relative to the abutment; a horizontal rotation driving means that rotates the rotating body in the horizontal direction; a support body that Fixed on the rotating body and supporting the solar cell module at the center of gravity of the solar cell module; an up-and-down rotating driving means connected to the rotating body and the solar cell module, and connecting the solar cell module with the The connecting part moves up and down to rotate the solar cell module in the up and down direction; and a control device that sends a command signal to the horizontal rotation driving means and the up and down rotation driving means to control the horizontal and vertical directions of the solar cell module Rotation; and the support body and the up-down rotation drive The moving means and the connecting portion of the rotating body are configured to be away from each other in a horizontal direction opposite to the rotation center of the rotating body, and the distance from the rotating center of the rotating body to the supporting body is longer than the rotation of the rotating body. The distance from the center to the connecting portion is small, and the moment acting on the rotating body from the supporting body is balanced with the moment acting on the rotating body from the connecting portion. The solar cell module supporting device of the present invention is the above-mentioned module supporting device, characterized in that the control device includes: a moving path memory section that memorizes the movement path of the sun for one day according to the year, month, and day; and a timer, which updates the time at any time Data and sending; and a commanding unit, based on the data of the moving path memory unit and the time data sent by the timer, in a manner that the solar cell module becomes approximately perpendicular to the direction of light from the sun, The horizontal rotation driving means and the up-down rotation driving means send a command signal to make the solar cell module track the sun. The solar cell module support device of the present invention is the above-mentioned module support device, and is characterized in that the control device includes a time correction unit that receives time data from a radio wave and corrects the time data sent by the timer. The solar cell module supporting device of the present invention is the above-mentioned module supporting device, which is characterized by having a wind speed sensor that detects the wind speed near the supported solar cell module, and the instruction unit is configured to detect the wind speed When the wind speed detected by the device is above a certain wind speed threshold, a command signal is sent to the vertical rotation driving means in such a manner that the solar cell module becomes a horizontal retraction angle. The solar cell module supporting device of the present invention is the above-mentioned module supporting device, and is characterized in that it includes a temperature sensor that detects the temperature of the solar cell module, and is configured when the solar cell module is at the retreat angle, When the temperature detected by the temperature sensor is below a certain temperature threshold, the instruction unit sends a command signal to the up-and-down rotation driving means so that the solar cell module is tilted to a certain low-temperature angle. The solar cell module supporting device of the present invention is the above-mentioned module supporting device, and is characterized in that the instruction unit is configured such that when the solar cell module is tilted to the low-temperature angle, the wind speed detected by the wind speed sensor When the wind speed is above a certain threshold, a command signal is sent to the vertical rotation driving means in such a manner that the solar cell module becomes a certain retreat angle. The solar cell module supporting device of the present invention is the above-mentioned module supporting device, and is characterized in that: when the instruction unit is at the retreat angle of the solar cell module, when the wind speed sensor detects that When the wind speed threshold is fixed, based on the data of the moving path memory section and the time data sent by the timer, the solar cell module becomes approximately perpendicular to the irradiation direction of the light from the sun. The rotation driving means and the up-down rotation driving means send a command signal to make the solar cell module track the sun. The solar cell device of the present invention is characterized by including the above-mentioned module supporting device and a solar cell module supported by the module supporting device. [Effect of the invention]

According to the module support device and the solar cell device of the present invention, the support body, the up-and-down rotation driving means, and the connection portion of the rotation body with respect to the rotation center of the rotation body are spaced away from each other in the horizontal direction. Therefore, the two moments acting on the rotating body by the self-supporting body and the up-and-down rotary driving means around the point on the center of rotation in the rotating body can be made substantially equal and balanced. Thereby, the load on the rotating body from above becomes uniform without being biased, and the rotating body supporting the solar cell module can be smoothly rotated around the rotation center. Since the rotating body can be smoothly rotated around the rotation center, the size of the solar cell module can be increased. There is no need to track the sun for each solar panel or several solar panels, and multiple driving means for tracking are not needed, which can reduce the cost of a solar cell device.

According to the module support device and the solar cell device of the present invention, the control device includes a time correction unit that receives time data from the radio wave and corrects the time data sent by the timer, and can prevent the error accumulation of the time data sent by the timer from increasing. Therefore, the solar cell module can accurately track the sun and improve power generation efficiency. Radio waves refer to radio waves used by GPS or radio clocks.

According to a wind speed sensor provided to detect the wind speed near the solar cell module, and when the wind speed detected by the wind speed sensor is above a certain wind speed threshold, the command section of the control device is configured to change the solar cell module. The module support device and solar cell device of the present invention that sends a command signal to the up-and-down rotation driving means in a certain retreat angle can prevent the solar cell module from strong wind from the lateral direction and prevent the solar cell module from being deformed due to wind pressure. , Damage or floating. The retreat angle refers to an angle at which the solar cell module can avoid the cross wind, such as 0 °, 0.01 ° to 3.0 ° with respect to the horizontal direction. The retraction angle is preferably 0 ° with respect to the horizontal direction. The solar cell module can avoid strong wind, thereby realizing the enlargement of the solar cell module.

According to the temperature sensor provided to detect the temperature of the solar cell module, and configured to control the device when the temperature detected by the temperature sensor is below a certain temperature threshold when the solar cell module is at a retreat angle The instruction unit sends a command signal to the up-and-down rotation driving means to tilt the solar cell module to a certain low-temperature angle. The module support device and solar cell device of the present invention. When the solar cell module is a horizontal retreat angle, when the temperature When the temperature detected by the sensor is below a certain temperature threshold (for example, a certain temperature from -1 ° C to -10 °), it is considered as snowfall when the solar cell module is tilted to a certain low temperature angle (for example, relative Send a command signal to the up and down rotation driving means in such a manner that the horizontal direction is 5 °, 10 °, 20 °, 30 °, or 45 °. Therefore, when the temperature is below the temperature threshold, it is regarded as snowfall. The solar cell module is tilted to cause snow falling on the solar cell module to fall down, so that it is possible to prevent snow from accumulating on the horizontal solar cell module and on the solar cell module. The group load has the weight of snow.

Next, an embodiment of the present invention will be described in detail based on the drawings. In Figs. 1 to 4, reference numeral 10 denotes a module supporting device of the present invention, and reference numeral 12 denotes a solar cell device of the present invention. In FIG. 4, solid lines connecting each device, each device, or each control unit are communicably connected. Control of each device, each machine, or each control section is performed by a computer (not shown).

(Configuration) As shown in FIG. 2, the module support device 10 is configured to support a solar cell module 16 in which a plurality of solar cell panels 14 are arranged in a flat plate shape. As shown in FIG. 1 and FIG. 2, the solar cell module 16 is composed of a truss structure 15, a plurality of flat solar panels 14 arranged on the truss structure 15, and a truss holding member 17 that holds the truss structure 15. The truss structure 15 is composed of a plurality of base rods 70 combined in a manner of arranging and fixing a plurality of solar cell panels 14; a plurality of upper cross members 72 fixed to the base rod 70; and a plurality of upper cross members 72 connected thereto A plurality of diagonal members 74; and a plurality of lower cross members 76 connected to the diagonal members 74 and fixed to the truss holding member 17. As shown in FIGS. 1 and 2, the solar cell device 12 includes a module support device 10 and a solar cell module 16 supported by the module support device 10.

As shown in FIG. 1, the module supporting device 10 includes: a base 18 fixed to the ground; a rotating body 20 rotating in a horizontal direction relative to the base 18; a horizontal rotation driving means 22 for rotating the rotating body 20; A support body 24 on the body 20 and supporting the center of gravity of the solar cell module 16; a rotation driving means 26 for rotating the solar cell module 16 in the vertical direction; and a drive for controlling the horizontal rotation driving means 22 and the vertical rotation driving means 26 Control device 28 (shown in Figure 4).

As shown in FIG. 1, the base 18 includes a leg portion 31 fixed to a foundation 30, and a disk-shaped rotating body support member 32 that receives the rotating body 20 and is rotatably supported about a rotation center C. The rotating body 20 includes: a rotating plate 21; an internally toothed gear 34 fixed to the rotating plate 21; and an up-and-down rotary driving means 26 supported by the rotating plate 21 and supporting a position far away from the rotation center C by a distance L2 in the horizontal direction. The rotating shaft 27 is made rotatable. The internally toothed gear 34 is configured to have a hollow portion (not shown), and includes a plurality of internal teeth (not shown) along the inner periphery of the hollow portion, and rotates around the rotation center C. The rotating body supporting member 32 includes a bearing (not shown) that supports the internally toothed gear 34 in the horizontal direction (XY direction) on the inner periphery.

As shown in FIG. 1, the horizontal rotation driving means 22 includes a motor 36 fixed to the rotating body support member 32, and a gear 38 that meshes with the internal teeth of the internal gear 34 and rotates in the horizontal direction by the motor 36. That is, the horizontal rotation driving means 22 is configured to rotate the gear 38 meshed with the internal teeth of the internally toothed gear 34 in the horizontal direction, thereby rotating the rotating body 20 fixed to the internally toothed gear 34 in the horizontal direction. In addition, the horizontal rotation driving means 22 includes an encoder (not shown) that detects the horizontal rotation angle of the rotating body 20 and sends (feeds back) to the control device 28. The horizontal rotation driving means 22 is configured to perform feedback control so that the rotating body 20 rotates in a horizontal direction at an accurate angle based on a command signal from the control device 28.

As shown in FIG. 1, the support body 24 is composed of the following: fixed at a position of the rotation center C away from the distance L1 in the horizontal direction to the leg portion 42 of the rotation body 20; and separated from the rotation center C in the horizontal direction. A rotation shaft 25 that supports and allows the solar cell module 16 to rotate at a distance L1.

As shown in FIG. 1, the vertical rotation driving means 26 is provided with a hydraulic cylinder 48 rotatably supported by a rotation shaft 27 at a position away from the rotation center C in the horizontal direction by a distance L2. The hydraulic cylinder 48 includes a cylinder portion 44 and a piston 46. The cylinder portion 44 is further configured such that the vertical rotation driving means 26 includes a rotation shaft 52 that connects the piston 46 to the truss holding member 17 of the solar cell module 16, and the rotation shaft 52 moves up and down by expanding and contracting the piston 46 as shown in FIG. 3. As shown, the solar cell module 16 is rotated up and down. The vertical rotation driving means 26 includes an angle sensor (not shown) that detects the vertical rotation angle of the solar cell module 16 and sends (feeds back) the control device 28. The vertical rotation driving means 26 is configured to perform feedback control so that the solar cell module 16 rotates in the vertical direction at a correct angle based on a command signal from the control device 28.

As shown in FIG. 1, the support body 24 and the rotating shaft 27 that is a connecting portion with the cylinder portion 44 and the rotating body 20 are away from each other in the horizontal direction with respect to the rotation center C of the rotating body 20. The distance L1 between the support body 24 and the rotation center C is smaller than the distance L2 between the rotation shaft 27 and the rotation center C of the support body 24. The support body 24 supports the center of gravity of the solar cell module 16, and a load N1 = M caused by the weight M of the solar cell module 16 is applied. A load N2 caused by a part m of the weight of the solar cell module 16 is applied to the rotating shaft 27 due to the influence of the wind or the like that comes into contact with the solar cell module 16 from above. m <M, N1 = M> N2 = m. Therefore, the support body 24 and the rotation shaft 27 are balanced so that the two moments M1 (N1 * L1) and M2 (N2 * L2) acting on the rotation body 20 around the point on the rotation center C become approximately the same and balanced. The configuration is L1 <L2. The effect brought about by the balance of the two moments M1 and M2 is as follows.

As shown in FIG. 4, the control device 28 includes: a movement path memory unit 54 that memorizes the movement path of the sun for one day according to the year, month, and day; a timer 56 that updates the time information at any time and sends it; The time information stored in the timer 56 is a command unit 58 that sends a command signal to the horizontal rotation driving means 22 and the vertical rotation driving means 26 so that the solar cell module 16 becomes perpendicular to the irradiation direction of the light from the sun.

The data stored in the movement path memory unit 54 is data indicating the movement path of the sun in the place where the solar cell device 12 is installed based on the scientific chronology issued by the National Observatory, for example. The data indicating the movement path of the sun are, for example, the azimuth and the up-down angle of the sun as seen from the place where the solar cell device 12 is installed. The instruction unit 58 is configured to send instruction signals to the horizontal rotation driving means 22 and the vertical rotation driving means 26 at regular intervals (for example, every 4 minutes), so that the solar cell module 16 becomes perpendicular to the direction of light from the sun. In this way, the solar cell module 16 is rotated in the horizontal direction and the vertical direction. Therefore, the instruction unit 58 includes calculations for calculating the rotation angle of the horizontal rotation driving means 22 and the rotation angle of the vertical rotation driving means 26 based on the position data of the sun stored in the movement path memory unit 54 in the time data transmitted by the timer 56. (Not shown). When the time data sent by the timer 56 is a certain night time (for example, 17:00 to 6 o'clock), the instruction unit 58 is configured to stop the solar cell module 16 at a certain horizontal rotation angle and a certain vertical rotation angle. The night time is recorded in a night time recording section (not shown) of the command section 58. For example, it is comprised so that it may stop in a certain origin state (for example, the state shown in FIG. 1). During the night time when no power is generated, the horizontal rotation driving means 22 and the vertical rotation driving means 26 are not burdened. Night time can be changed.

As shown in FIG. 4, the control device 28 includes a time correction unit 62 that receives time data from the GPS 60 at regular intervals and corrects the time data transmitted by the timer 56. The time correction unit 62 is configured to prevent the error accumulation of the time data transmitted by the timer 56 from becoming large, so that the solar cell module 16 can accurately track the sun.

As shown in FIG. 4, the module supporting device 10 includes a wind speed sensor 64 that detects the wind speed near the solar cell module 16. The command unit 58 of the control device 28 is configured to include a wind speed threshold recording unit (not shown). When the wind speed detected by the wind speed sensor 64 is equal to or greater than a certain wind speed threshold (for example, 15 m / s), a solar battery is used. The module 16 sends a command signal to the vertical rotation driving means 26 in a horizontal manner. The wind speed threshold can be changed.

As shown in FIG. 4, the module supporting device 10 includes a temperature sensor 66 that detects the temperature of the solar cell module 16. The command unit 58 of the control device 28 is configured with a temperature threshold recording unit (not shown), and when the wind speed detected by the wind speed sensor 64 is equal to or higher than a certain wind speed threshold, and the solar cell module 16 is at a horizontal retraction angle, When the temperature detected by the temperature sensor 66 is below a certain temperature threshold (for example, -4 ° C), the solar cell module 16 is tilted to a certain low temperature angle (for example, 5 ° relative to the horizontal direction, 10 °, 20 °, 30 °, 45 °, etc.) to send a command signal to the up-and-down rotation driving means 26. The instruction unit 58 is configured to be considered as snowfall when the temperature is below the temperature threshold. The solar cell module 16 is tilted to cause the snow to fall on the solar cell module 16 to prevent snow from falling on the horizontal solar cell module 16. The weight of snow is loaded on the solar cell module 16. The temperature threshold can be changed.

(Function) (Initial setting) The module support device 10 records the night time (for example, 17:00 to 6:00) when the horizontal rotation driving means 22 and the vertical rotation driving means 26 are not driven in the command unit 58 of the control device 28. In addition, in the command unit 58 of the control device 28, a wind speed threshold (for example, 15 m / s) for retreating the solar cell module 16 is recorded in the wind speed threshold recording unit, and a temperature threshold value for detecting snowfall is recorded in the temperature threshold recording unit. (For example -4 ° C). The module supporting device 10 and the solar cell device 12 are stopped at a certain origin state (for example, the state shown in FIG. 1) during night time.

(Tracking of the Sun) During the daytime (for example, from 6 to 17 o'clock) of the module support device 10 and the solar cell device 12, the solar cell module 16 is tracked such that it becomes perpendicular to the direction of light from the sun. sun. The tracking of the sun is performed in such a manner that the calculation section of the command section 58 of the control device 28 calculates the rotation angle of the horizontal rotation driving means 22 and the vertical rotation driving based on the data of the movement path memory section 54 every 4 minutes. The rotation angle of the means 26, and the instruction unit 58 sends instruction signals to the horizontal rotation driving means 22 and the vertical rotation driving means 26.

(Retreat of the solar cell module 16) When the solar cell module 16 tracks the sun, when the wind speed sensor 64 detects a wind speed above the wind speed threshold, the command unit 58 of the control device 28 turns the solar cell module 16 to a horizontal level. The retraction angle method sends a command signal to the vertical rotation driving means 26. The solar cell module 16 is retracted from the strong wind from the lateral direction to prevent the solar cell module 16 from being deformed or damaged due to wind pressure.

When the solar cell module 16 is at the retreat angle, when the temperature detected by the temperature sensor 66 is below the temperature threshold, the instruction unit 58 may tilt the solar cell module 16 to a low temperature angle (for example, relative to the horizontal direction) It sends a command signal to the vertical rotation driving means 26 in a manner of 30 °). When the temperature detected by the temperature sensor 66 is below the temperature threshold, it is considered that during the snowfall, the solar cell module 16 is tilted to prevent snow from accumulating on the solar cell module 16, thereby preventing the solar cell module 16 deformation or damage.

However, when the solar cell module 16 is tilted to a low temperature angle, when the wind speed sensor 64 detects the wind speed above the wind speed threshold again, the command unit 58 of the control device 28 causes the solar cell module 16 to change again. The horizontal retreat angle sends a command signal to the vertical rotation driving means 26. That is, the solar cell module 16 is preferentially set to a retreat angle corresponding to the wind speed sensor 64 when the solar cell module 16 is tilted to a low temperature angle corresponding to the temperature sensor 66. The reason is that the solar cell module 16 is more deformed or damaged due to strong wind than the case where the solar cell module 16 is deformed or damaged due to snowfall.

In addition, when the solar cell module 16 is at a retreat angle, when the wind speed sensor 64 detects that a certain wind speed threshold is not reached within a certain time, based on the data of the moving path memory section 54 and the time data sent by the timer 56, A command signal is transmitted to the horizontal rotation driving means 22 and the vertical rotation driving means 26 so that the solar cell module 16 becomes perpendicular to the irradiation direction of light from the sun. That is, the solar cell module 16 is restarted to track the sun.

(Effect) According to the module supporting device 10 and the solar cell device 12 of the present invention, as shown in FIG. 1, the supporting body 24 and the rotating shaft 27 that is a connecting portion with the cylinder portion 44 and the rotating body 20 are rotated relative to the rotating body 20. The centers C are away from each other in opposite directions in the horizontal direction. Moreover, as explained in the above-mentioned configuration, the moments M1 (N1 * L1) and M2 (N2 * L2) acting on the rotating body 20 around the point on the center of rotation C in the rotating body 20 become approximately the same and are in equilibrium. Therefore, the load on the rotating body 20 from above becomes uniform without being biased, and the rotating body 20 supporting the solar cell module 16 via the support body 24 and the vertical rotation driving means 26 can smoothly rotate around the rotation center C. Since the rotating body 20 can be smoothly rotated around the rotation center C, the size of the solar cell module 16 can be increased. For example, as shown in FIG. 2, the solar cell module 16 includes 168 solar panels 14, and the rotating body 20 supporting the solar cell module 16 having a size of about 14300 × 23400 mm can be smoothly rotated around the rotation center C. , So that the solar cell module 16 can be enlarged.

As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment. For example, it may be a solar cell device 12 as shown in FIG. 5. In the solar cell device 12 shown in FIG. 5, a reflective sheet 78 is arranged on the upper surface of a plurality of lower cross members 76 of the truss structure 15. The reflective sheet 78 is made of a white or cream-colored resin film that is easy to reflect. In addition, as the solar cell panel 14, a person who can generate electricity even when light is incident on the rear surface is used. The structure of the solar cell device 12 shown in FIG. 5 includes a reflective sheet 78, and a solar panel 14 that can generate electricity even when light is incident on the back side is used. In addition, the solar cell device 12 is similar to the solar cells shown in FIGS. 1 and 2. The configuration of the battery device 12 is the same. The solar cell panel 14 constituting the solar cell module 16 shown in FIG. 1 and FIG. 2 may be configured to generate electricity even when light is incident on the back surface.

According to the solar cell device 12 shown in FIG. 5, light generated by diffuse reflection of sunlight, light passing through a gap between a plurality of solar cell panels 14, or light passing through a plurality of solar cell elements constituting the solar cell panel 14 The light in the gap is irradiated on the reflective sheet 78 and reflected, and is incident on the back surface of the solar cell panel 14. Therefore, it is possible to increase the amount of power generated by incident light on the back surface of the solar cell panel 14 and improve power generation efficiency. In this case, as long as the size of the truss structure 15 in the horizontal direction becomes larger and a larger reflection sheet 78 can be arranged, the power generation efficiency can be further improved.

As shown in FIG. 6 (a), the gaps 80 can also be formed by shifting the respective solar cell panels 14 in the arrangement direction. As shown in FIG. 6 (b), the gaps 82 can also be formed by shifting each solar cell panel 14 in the vertical direction. As shown in FIGS. 6 (c) and (d), the gaps 84 and 86 can also be formed by arranging the solar cell panels 14 obliquely. The wind passes through the gaps 80, 82, 84, and 86, thereby reducing the wind pressure of the wind that is in contact with the solar cell module 16, so that the solar cell module 16 can be enlarged.

As mentioned above, although embodiment of this invention was described based on drawing, this invention is not limited to the embodiment shown in figure. For example, the module support device and solar cell device of the present invention may be configured with a wind speed sensor that detects the wind speed near the solar cell module and a wind direction sensor that detects the wind direction near the solar cell module. When the wind speed detected by the wind speed sensor is above a certain wind speed threshold, the retraction angle of the solar cell module becomes the inclination angle of the upper side of the wind direction detected by the wind direction sensor and a slight decrease In this way, the command unit of the control device sends command signals to the horizontal rotation driving means and the vertical rotation driving means. The retreat angle in this case refers to an angle that enables the solar cell module to retreat from the horizontal wind and be inclined relative to the horizontal direction, such as 0.01 ° to 3.0 °. It is constructed in such a way that the cross wind must contact the surface of the solar cell module, so that it can correspond to the structure of the module support device that has a strong bearing capacity for the load from above caused by the solar cell module. The load bearing capacity of the solar cell module pushed from below is weak. The wind direction sensor is a rod-shaped member that is supported to rotate in a horizontal direction and has a vertical tail and other wings at the rear, and the tip is directed toward the upper stream of wind, or a person using an ultrasonic wave. The wind direction sensor is preferably an average value capable of outputting the wind direction for a certain time. In addition, the control means can also calculate the average value of the wind direction for a certain time.

In addition, the module supporting device of the present invention may be configured to manually rotate the solar cell module 16 in a horizontal direction or an up-down direction from a remote operation terminal. In addition, it may be configured with a camera capable of monitoring the solar cell module. When the amount of snow in the solar cell module is large, the solar cell module is manually rotated up and down to shake off the snow. The number of solar cell panels 14 constituting the solar cell module 16 and the size of the solar cell module 16 are not particularly limited.

10: Module supporting device 12: Solar cell device 14: Solar cell panel 15: Truss structure 16: Solar cell module 17: Truss holding member 18: Abutment 20: Rotating body 21: Rotating plate 22: Horizontal rotation driving means 24: Supports 25, 27, 52: Rotary shafts 26: Up-and-down rotary driving means 28: Control device 30: Foundations 31, 42: Legs 32: Rotary support members 34: Internal gear 36: Motor 38: Gear 44: Cylinder section 46: Piston 48: Hydraulic cylinder 54: Movement path memory section 56: Timer 58: Command section 60: GPS 62: Time correction section 64: Wind speed sensor 66: Temperature sensor 70: Base rod 72 : Upper cross member 74: oblique member 76: lower cross member C: rotation center N1, N2: load L1, L2: distance

FIG. 1 is a front view showing a module supporting device and a solar cell device of the present invention. FIG. 2 is a side view showing the module supporting device and the solar cell device of FIG. 1. FIG. 3 is a front view showing a state in which the module support device of FIG. 1 rotates a solar cell module up and down. FIG. FIG. 4 is a diagram showing the configuration of the module supporting device of FIG. 1 and the solar cell device of FIG. 2. FIG. 5 is a front view showing another embodiment of the module supporting device and the solar cell device of the present invention. (A) in FIG. 6 is a plan view showing another embodiment of a solar cell module supported by the module supporting device of the present invention, and (b) to (d) are views showing a module by the present invention Front view of another embodiment of the solar cell module supported by the supporting device.

Claims (8)

A module supporting device supports a solar cell module formed by arranging a plurality of solar cell panels in a flat plate shape, so that the solar cell module tracks the sun, and the solar cell module is horizontally oriented. And a person who rotates in the up and down direction and includes: a base that is fixed to the ground; a rotating body that rotates horizontally with respect to the abutment; a horizontal rotation driving means that rotates the rotating body in the horizontal direction; a support body that It is fixed on the rotating body, and supports the solar cell module at the center of gravity of the solar cell module; and an up-and-down rotating driving means is connected to the rotating body and the solar cell module, and is connected to the solar cell module by The connecting part moves up and down to rotate the solar cell module in the up and down direction; and a control device that sends a command signal to the horizontal rotation driving means and the up and down rotation driving means to control the horizontal and vertical directions of the solar cell module Rotation; and the support is connected with the up-down rotation driving means and the rotation body The part is configured to be away from each other in the horizontal direction opposite to the rotation center of the rotating body. The distance from the rotating center of the rotating body to the support body is longer than the distance from the rotating center of the rotating body to the up-and-down rotation driving means and the The distance between the connecting portions of the rotating body is small, and the torque acting on the rotating body from the support body is balanced with the torque acting on the rotating body from the up-and-down rotating driving means and the connecting portion of the rotating body. The module supporting device according to claim 1, wherein the control device includes: a moving path memory section that memorizes the movement path of the sun for one day according to the year, month, and day; a timer that updates the time data at any time and sends it; and a command section Based on the data of the moving path memory and the time data sent by the timer, the horizontal rotation driving means and the vertical rotation are performed in a manner that the solar cell module is substantially perpendicular to the irradiation direction of the light from the sun. The driving means sends a command signal to make the solar cell module track the sun. The module supporting device according to claim 2, wherein the control device includes a time correction unit that receives time data from an electric wave and corrects the time data transmitted by the timer. The module supporting device according to claim 2 or 3, further comprising a wind speed sensor for detecting a wind speed near the solar cell module supported, and the instruction unit is configured to detect the wind speed by the wind speed sensor. When the wind speed is above a certain threshold, a command signal is sent to the vertical rotation driving means in a manner that the solar cell module becomes a certain retreat angle. The module supporting device according to claim 4, comprising a temperature sensor that detects the temperature of the solar cell module, and is configured such that when the solar cell module is at the retreat angle, the temperature sensor When the detected temperature is below a certain temperature threshold, the command unit sends a command signal to the up-and-down rotation driving means such that the solar cell module is tilted to a certain low-temperature angle. The module supporting device according to claim 5, wherein the instruction unit is configured to: when the solar cell module is tilted to the low-temperature angle, when the wind speed detected by the wind speed sensor is above a certain wind speed threshold At this time, a command signal is sent to the up-and-down rotation driving means in such a manner that the solar cell module becomes a horizontal retreat angle. The module supporting device according to claim 4, wherein the instruction unit is configured to, when the solar cell module is at the retreat angle, when the wind speed sensor detects that a certain wind speed threshold is not reached within a certain time, Based on the data of the moving path memory section and the time data sent by the timer, the horizontal rotation driving means and the vertical rotation driving means are made so that the solar cell module is substantially perpendicular to the irradiation direction of the light from the sun. Send a command signal to make the solar cell module track the sun. A solar cell device includes the module support device according to any one of the above claims 1 to 7, and a solar cell module supported by the module support device.