TWM471570U - Solar tracking apparatus - Google Patents

Abstract

The invention discloses a solar tracking for a solar energy collecting system. The solar tracking apparatus of the invention includes a supporting shelf, a frame, a controller, a first actuating device, a rotation member and a second actuating device. The supporting shelf defines a first rotation axis. The frame is rotatably mounted on the supporting shelf, and defines a second rotation axis. The first actuating device is operatively coupled to the frame, and is controlled by the controller to actuate the frame to rotate around the first rotation axis. The rotation member is rotatably mounted on the frame. The solar energy collecting system is mounted on the rotation member. The second actuating device is operatively coupled to the rotation member, and is controlled by the controller to actuate the rotation member to rotate around the second rotation axis.

Description

Chasing device

This creation relates to a solar tracking apparatus and, in particular, to a solar tracking device for use in a solar energy collection system.

Due to the increasing effects of the greenhouse effect, climate change and rising oil prices, and the emergence of important energy sources, the development of renewable energy (including solar energy, wind energy, geothermal energy, hydropower, biomass, etc.) has become very urgent. Renewable energy has not only become the focus of discussion at international conferences, but also an important item for countries to formulate energy policies. According to Refocus Weekly's report in May 2004, the current world's use of renewable energy only accounts for 1.3% of its potential, and the cost of some renewable energy power generation is gradually decreasing. Therefore, renewable energy can not only respond to the current green environmental trend, but also has potential for development. .

Among the aforementioned renewable energy developments, solar energy related applications are one of the more mature fields. Today, we collect solar energy and use it in two ways: (1) collecting heat energy; and (2) converting light energy. In terms of collecting heat, the small-scale use of people's livelihood is the solar water heater that we often see now. On a larger scale, there is a so-called collector solar power plant, which operates on the principle of concentrating sunlight as a mirror, and by concentrating the high heat generated by solar energy, vaporizes water to generate steam, which in turn drives the turbine. The generator produces electricity.

In addition, in terms of converting light energy, most of the so-called solar panels are used to convert light energy directly into electrical energy. Smaller types of solar panels, such as electronic computers, larger ones, such as many solar panels attached to the house. In order to achieve the purpose of power autonomy. Since the 1960s, satellites launched by the United States have used solar cells as a source of energy. In the energy crisis of the 1970s, people began to transfer the application of solar cells to the general livelihood use. At present, solar power devices have been widely used in countries such as the United States, Japan, and Israel, and are moving toward commercialization. In these countries, the United States established the world's largest solar power plant in California in 1983, which can generate up to 16 megawatts of electricity. Other countries in South Africa, Botswana, Namibia and southern Africa have also set up projects to encourage the installation of low-cost solar cell power systems in remote rural areas.

Further, in order to apply solar energy more efficiently to improve the efficiency of the solar device, many sun-tracking devices capable of tracking the position of the sun have been developed. The main purpose of these solar tracking devices is to carry the solar energy collection system and allow the sunlight to continuously illuminate the solar energy collection system to increase the amount of light collected by the solar energy collection system.

The prior art regarding the chasing device and the method of chasing the Japanese can be roughly divided into: (1) a heat-actuated form; (2) a photo detecting form; and (3) a pre-calculated form. .

In the case of a heat-actuated form of a solar-recovery device, for example, a sun-tracking device disclosed in U.S. Patent No. 4,027,651, which has a plurality of mirrors that reflect solar radiation energy to heat several reservoirs containing liquids to varying degrees. To create different pressures for rotating the tracker and the solar collector. There is also a sun-tracking device disclosed in U.S. Patent No. 4,498,456, which utilizes a plurality of tension wires made of a shape memory alloy process and a plurality of solar concentrators, which are heated by solar energy to exceed the temperature of the metamorphic temperature as the position of the sun changes. The line will pull the solar collector system to rotate.

The case of the light sensing form chasing the Japanese device, for example, the improvement of the solar water heater heat collecting plate disclosed by the Republic of China Patent No. I258559 and the intelligent chasing mechanism device, which uses the east-west and north-south direction photoresistors and things With the help of the north-south automatic chasing circuit board, the collector board can be kept at 90 degrees with the sun light at any time to obtain the maximum heat absorption efficiency. In addition, the structure of the solar tracking sensor disclosed in the Republic of China Patent No. 482283 is that the difference in illuminance obtained by the four photosensitive elements can cause a relative change in the internal impedance, and the signal generated by the change drives the motor in time to control the machine. The structure generates an action so that the mechanical structure together with the chasing sensor can be automatically adjusted to the angular position directly opposite the light source.

As for the method of searching for the date in advance, for example, a solar power system uses the astronomical sun position to calculate the azimuth and elevation to track the sun position, or to track the sun's trajectory, according to the earth's rotation of 15° per hour, the earth axis moves back and forth for one year. A parameter of 23.5° is designed to track the position of the sun.

However, most of the prior art sun-tracking devices are cumbersome sun-tracking devices, and the balance of the force is not balanced, which is easy to cause mechanical wear and is also difficult to resist excessive wind.

Therefore, one of the technical problems to be solved by the present invention is to provide a chasing device. In particular, the creation of the Japanese-originated device is relatively light, and the force distance design strives to balance, reduce mechanical wear and tear, and also has a design to withstand wind disasters.

A solar tracking device of one of the preferred embodiments of the present invention is for use in a solar energy collection system. The sun-tracking device of the present invention comprises a support frame, a frame, a controller, a first actuating device, a rotating member and a second actuating device. The support frame defines a first shaft. The frame is rotatably secured to the support frame and defines a second shaft. The first actuator is electrically coupled to the controller and operatively coupled to the frame. The first actuating device is controlled by the controller to actuate the frame about the first axis of rotation. The rotating member is rotatably fixed to the frame. The solar energy collection system is placed on the rotating member. A second actuating device is electrically coupled to the controller and operatively coupled to the rotating member. The second actuating device is controlled by the controller to actuate the rotating member to rotate about the second axis of rotation.

In a specific embodiment, the first actuating device is fixed to the support frame.

In a specific embodiment, the second actuating device is fixed to the frame

Further, the creation of the Japanese device also includes a weight element. The weight element is attached to the rotating member and is positioned opposite the solar collection system. The solar energy collection system balances the first force distance between the frame and the rotating member and the second force distance caused by the weight element to the frame and the rotating member.

Different from the prior art, the creation of the Japanese chase device is relatively light, low in manufacturing cost, easy to install, and balanced in design of the force distance, which can reduce mechanical wear and tear, and also has a design to withstand wind disasters.

The advantages and spirit of the present invention can be further understood by the following embodiments and the drawings.

1‧‧‧Chasing device

10‧‧‧Support frame

12‧‧‧Frame

122‧‧‧Bend

14‧‧‧First Actuator

16‧‧‧Rotating components

17‧‧‧ wind meter

18‧‧‧Second actuator

19‧‧‧ Weight components

L1‧‧‧First shaft

L2‧‧‧second shaft

2‧‧‧Solar collection system

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a daylighting device in accordance with a preferred embodiment of the present invention.

Figure 2 is a visual view of one of the changes in the creation of the Japanese device.

Please refer to Figure 1 and Figure 2. 1 is an external view of a day-tracking device 1 in accordance with a preferred embodiment of the present invention. Fig. 2 is a perspective view showing a change of one of the Japanese chasing devices 1 of the present invention.

The day chase device 1 of the present invention is used for the solar energy collection system 2. In Fig. 1, the solar energy collection system 2 is a solar cell, as an illustrative example. In another example, the solar energy collection system 2 can be a solar light collection and guidance system that is combined by a lens and a mirror.

As shown in FIG. 1, the creation of the sun-tracking device 1 includes a support frame 10, a frame 12, a controller (not shown in FIG. 1), a first actuating device 14, a rotating member 16, and a second actuating device 18. .

The support frame 10 defines a first rotation axis L1. The frame 12 is rotatably fixed to the support frame 10 and defines a second rotation axis L2. The first actuator 14 is electrically coupled to the controller and operatively coupled to the frame 12. The first actuating device 14 is controlled by the controller to actuate the frame 12 to rotate about the first axis of rotation L1.

In one embodiment, the first actuating device 14 is secured to the support frame 10.

In one embodiment, the first actuating device 14 comprises a stepper motor, a servo motor or a linear motor.

The rotating member 16 is rotatably fixed to the frame 12. The solar energy collection system 2 is placed on the rotating member 16.

In one embodiment, the rotating member 16 may be a plate member or a frame member to reduce the weight of the rotating member 16 itself.

The second actuating device 18 is electrically coupled to the controller and is operatively coupled to the rotating member 16. The second actuating device 18 is controlled by the controller to actuate the rotational member 16 to rotate about the second rotational axis L2. Thereby, the day-tracking device 1 of the present invention can meet the requirements of two rotation degrees of freedom for the general day-tracking device.

In one embodiment, the second actuating device 18 is secured to the frame 12.

In one embodiment, the second actuating device 18 comprises a stepper motor, a servo motor or a linear motor.

The day chase device 1 of the present invention can use the method of chasing the date in a pre-calculated form, and the solar calendar related to the position and orientation of the original chasing device 1 is stored in the controller in advance, and the controller is based on the date, time and solar calendar. Determining the azimuth and elevation of the sun position, thereby controlling the first actuating device 14, The two-position device 18 drives the angle at which the frame 12 and the rotating member 16 rotate. The finder device 1 of the present invention can also sense the azimuth and elevation of the sun position by using various types of related sensors (for example, a light sensor or the like), and then control the first actuating device 14 and the second actuating device. 18 drives the angle at which the frame 12 and the rotating member 16 rotate.

Further, also shown in Fig. 1, the Japanese tracking device 1 of the present invention further includes a weight element 19. The weight element 19 is fixed to the rotating member 16 and is positioned opposite the solar energy collection system 2. The solar energy collection system 2 balances the first force distance between the frame 12 and the rotating member 16 and the second force distance caused by the weight element 19 against the frame 12 and the rotating member 16. Thereby, the sun-filling device 1 of the present invention can reduce mechanical wear and tear, especially the mechanical wear of the first actuating device 14 and the second actuating device 18. The output torque of the first actuating device 14 and the second actuating device 18 can be small.

Further, also shown in FIG. 1, the Japanese tracking device 1 of the present invention further includes a wind meter 17. The wind meter 17 is electrically connected to the controller and is used to sense wind data. The controller receives the wind data sensed by the wind meter 17, and selectively controls the first actuating device 14 and the second actuating device 18 to actuate the frame 12 and the rotating member 16 to a predetermined position based on the wind data. That is, when the wind exceeds the preset threshold, the present day chasing device 1 can rotate the frame 12 and the rotating member 16 to a position that is less affected by the wind, generally rotating the frame 12 and the rotating member 16 parallel to the ground. It is avoided to destroy the components and components of the Japanese device 1 of the present creation due to the large wind force or even the typhoon.

In one embodiment, the distance between the weight element 19 and the rotating member 16 can be adjusted whereby the second force distance caused by the weight element 19 against the frame 12 and the rotating member 16 can be adjusted.

Referring to Figure 2, the solar energy collection system 2 is used to direct sunlight to travel along the optical path. In FIG. 2, the solar cell is still shown as an example of the solar energy collection system 2, instead of the solar light collection combined by the lens and the mirror. With the guidance system. In particular, the frame 12 has a curved portion 122. The curved portion 122 is positioned below the optical path. Thereby, the frame 12 does not block sunlight transmitted along the optical path. 2 has the same or similar structures and functions as those in FIG. 1, and will not be described here.

Based on the detailed description of the above preferred embodiments, it is believed that the sun-tracking device of the present invention is relatively light, has low manufacturing cost, is easy to install, and strives to balance the force distance design, thereby reducing mechanical wear and tear.

The features and spirit of the present invention are more clearly described in the above detailed description of the preferred embodiments, and are not intended to limit the scope of the present invention. On the contrary, the purpose is to cover all kinds of changes and equivalence arrangements within the scope of the patent application to which the present invention is intended. Therefore, the scope of the patent application filed by this creator should be interpreted broadly based on the above description so that it covers all possible changes and equivalent arrangements.

1‧‧‧Chasing device

10‧‧‧Support frame

12‧‧‧Frame

122‧‧‧Bend

14‧‧‧First Actuator

16‧‧‧Rotating components

17‧‧‧ wind meter

18‧‧‧Second actuator

19‧‧‧ Weight components

L1‧‧‧First shaft

L2‧‧‧second shaft

2‧‧‧Solar collection system

Claims (10)

A sun-tracking device for use in a solar energy collection system, the sun-tracking device comprising: a support frame defining a first rotating shaft; a frame rotatably fixed to the support frame and defining a second rotating shaft a controller; a first actuating device electrically coupled to the controller and operatively coupled to the frame, the first actuating device being controlled by the controller to actuate the frame to rotate about the first axis of rotation a rotating member rotatably secured to the frame, wherein the solar energy collection system is disposed on the rotating member; and a second actuating device electrically coupled to the controller and operatively coupled to the A rotating member, the second actuating device being controlled by the controller to actuate the rotating member to rotate about the second rotating shaft. The sun-tracking device of claim 1, wherein the first actuating device is fixed to the support frame. A sun-tracking device as claimed in claim 1, wherein the second actuating device is fixed to the frame. The sun-tracking device of claim 1, further comprising a weight element fixed to the rotating member and located at a position opposite to the solar energy collection system, wherein the solar energy collection system The rotating member causes a first force range and the weight element to cause a second force distance balance between the frame and the rotating member. The tracking device of claim 4, further comprising an air meter electrically connected to the controller and configured to sense a wind data, wherein the controller accepts the wind data and is selectively selected according to the wind data The first actuating device and the second actuating device are controlled to actuate the frame and the rotating member to rotate to a predetermined position. The solar tracking device of claim 1, wherein the solar energy collection system is configured to conduct sunlight along an optical path, and the frame has a curved portion that is positioned below one of the optical paths. The time following device of claim 1, wherein the first actuating device is selected from the group consisting of a stepping motor, a servo motor, and a linear motor. The time-stabilizing device of claim 1, wherein the second positioning device is selected from the group consisting of a stepping motor, a servo motor, and a linear motor. The sun-tracking device of claim 1, wherein the rotating member is a plate-like member. The sun-tracking device of claim 1, wherein the rotating member is a frame member.