JPH075923A - Automatic pyramidical solar tracking device - Google Patents

Abstract

PURPOSE:To provide an automatic solar tracking device which includes two pairs of vertical and horizontal turning solar batteries attached symmetrically to each other on the counter faces of an equilateral pyamid and also to provide a device which can always make the direction of a solar energy utilizing device coincide with the direct solar radiating direction and can receive the maximum energy. CONSTITUTION:A gear is attached to each rotary axis of a gyroscope, and two pairs of vertical and horizontal turning solar batteries of the same characteristic, shape and area are attached symmetrically on the counter faces of an equilateral pyramid and at the center of a vertical/horizontal turning enable structure via the motors 7 and 8. Then, the difference of output generated between each pair of the counter faces is applied to a load resistance and both motors 7 and 8 respectively after amplification, etc. The motors 7 and 8 stop when the output difference is equal to 0. Under such conditions, the pyramid 1 directly faces the sun and automatically tracks it. Furthermore, it is possible to know the rotational angle set in the east-west horizontal direction and also to know the angle of elevation against the horizontal direction. Thus, the position of the sun can be found.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic solar tracking device and a solar energy utilization device such as solar heat and a solar cell which utilizes the automatic solar tracking device.

[Prior Art] As an automatic solar tracking device, there is a computerized device that is obtained from latitude, longitude, altitude, date and time, etc., and a solar energy utilization device is simply a solar panel at an angle corresponding to latitude. There is a device that uses the optical fiber bundle.

[Problems to be Solved by the Invention] In the conventional technique for automatically tracking the sun, it is very expensive or inaccurate, and the solar energy utilization device does not always receive the maximum amount of solar energy. There is an urgent need for an economical and accurate automatic solar tracking system.

[0004] [Means for Solving the Problem] A gear (9) is attached to each rotary shaft of a gyroscope, and a motor (7, 8) installed on each of the rotary shafts enables horizontal and vertical turning of the structure (3). Two pairs of solar cells having the same characteristics, shape, and area in the center, one for horizontal turning and the other for vertical turning (2)
Are mounted symmetrically on each confronting face of the equilateral quadrangular pyramid (1) or in the same opened shape, and the differential output of each pair is provided with a load resistor (4) and a motor (7, 8). )
Or the output is amplified and sent to the motor, the rotation is reduced by the gear (9), etc., and the head is turned in the direction in which the difference output is reduced. When each difference is 0, each motor (7, 8)
Stops, and the sun can be tracked and fixed on the line of intersection on each pair of symmetry axes, that is, on the line that passes through the vertices of the equilateral quadrangular pyramid (1) and is perpendicular to the bottom surface. Therefore, the motor (7,
From the total amount of rotation in 8), the position of the sun can be known from the rotation angle of the horizontal axis (east-west direction) from the starting point and the rotation angle of the vertical axis (angle of attack from the horizontal). In this way, the solar cells of each pair are automatically turned horizontally and vertically independently to track and determine the sun that moves every moment. The solar energy utilization device has the same turning structure as the tracking device (Fig. 3) and the motor current of the tracking device is amplified and sent to the motor of the utilization device for automatic turning, or from the sun position determined by this tracking device to the computer As a result, the normal direction of the solar heat collecting parabola or the light receiving surface of the solar cell or the like is always matched with the direct sunlight direction of the sun, and the maximum solar energy is always received.

[Operation] In each pair of solar cells of the automatic solar tracking device, one positive electrode and the other negative electrode, and one negative electrode and the other positive electrode are connected. Between the two connections, insert an appropriate resistor (4) and motor (7, 8) in series, or amplify each output and feed it to the horizontal (7) and vertical turning motors (8), The gear (9) or the like is used to slow down the rotation, and the equilateral square pyramid (1) is turned in the direction in which its output decreases. Usually, there is a difference in the angle toward the sun between the solar electrodes on the opposite surface, and as a result, there is a difference in the received light energy received.
A current proportional to the output difference flows, each motor is rotated in the direction in which the difference output decreases, and this equilateral square pyramid (1) is rotated until it becomes 0, and the center of this equilateral square pyramid (1) is always maintained. Track the sun so that it lies on the axis.

[Brief description of drawings]

 [Fig. 1] Solar cell on the equilateral quadrangular pyramid of the present invention [Fig. 2] Face-to-face generated output amplifier circuit for turning motor of the present invention [Fig. 3] Automatic solar tracking device of the present invention [Fig. 4] Solar energy of the present invention Utilization device [Explanation of symbols] 1 Equilateral square pyramid 2 Solar cell 3 Pair solar cell 4 Resistance 5 Amplifier 6 Turning motor 7 Horizontal turning motor 8 Vertical turning motor 9 Gear 10 Support arm 11 Support 12 Bearing 13 Solar energy usage Panel 14 Solar cell turning motor 15 Panel surface turning screw leg

Claims (2)

[Claims] [Claim 1] A gear (9) is attached to each rotary shaft of the gyroscope, and a motor (7,
According to 8), two pairs of solar cells (2) having the same characteristics, shapes, and areas of a pair for horizontal turning and a pair for vertical turning are equidistant at the center of the structure capable of horizontal and vertical turning (FIG. 3). A quadrangle pyramid (1) or a similar open shape is provided on each confronting face in a symmetrical manner, and the differential output of each pair is amplified and sent to each motor to automatically set the sun. A device for tracking. [Claim 2] The turning structure of the solar energy utilization device is the same as that of the solar tracking device according to claim 1, the motor (7, 8) currents of the solar tracking device are respectively amplified, and A solar energy utilization device for automatically tracking the sun by supplying it to a motor in parallel with it, and a lever shaft of the utilization device for the motor (14)
A device that makes it possible to rotate and expand and contract so that the sun position determined by the sun tracking device can be tracked by computer control.