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Sun tracking system pressure differential driving system

a technology of driving system and solar energy, applied in the field of solar energy tracking system, can solve the problem that the actual light intensity in the shadow is slightly higher than the light intensity sensed by the photosensor b>101/b>

Inactive Publication Date: 2009-04-23
LIN JEFFERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present patent is related to a sun tracking system for a solar panel that collects and converts solar energy. The technical effects of the patent include a sun tracking system based on pressure difference, which allows for more accurate tracking of the sun's movement and ensures optimal solar energy conversion. Additionally, the patent describes a system that includes a pressure tank and a control unit to adjust the solar panel based on the pressure difference between two pressure tanks, which is created due to the shadow of the wall caused by the sun's movement. The pressure difference driven device uses cylinders and a driven rod to generate a push or pull force, which is proportional to the pressure difference between the two pressure tanks. This allows for a more precise and synchronized adjustment of the solar panel to maximize sun energy conversion."

Problems solved by technology

The drawback of the prior art shown in FIG. 1 is that the environmental light intensity sensed by photo sensor 101 is slightly higher then the actual light intensity in the shadow due to light reflection noise.

Method used

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  • Sun tracking system pressure differential driving system
  • Sun tracking system pressure differential driving system
  • Sun tracking system pressure differential driving system

Examples

Experimental program
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Effect test

first embodiment

[0013]FIG. 2. shows this invention.

[0014]In a sun tracking system with a pressure differential driving system for a solar panel 105: a first pressure tank 201 is located on a first side of the solar panel 105 to provide a first pressure; a second pressure tank 202 is located on a second side, e.g., opposite to the first side of the solar panel 105 to provide a second pressure; a first wall 211 is located beside the first pressure tank 201; a second wall 212 is located beside the second pressure tank 202; and a control system 26 is coupled to the two pressure tanks 201, 202 to adjust the solar panel 105 according to a pressure difference between the two pressure tanks 201, 202.

[0015]When the sun is above the solar panel 105, each of the photoelectric units 108 receives equal light intensity from the sun. However, when the sun shifts sideway, e.g., left as shown in FIG. 2, the shadow of the wall 212 gradually covers the second pressure tank 202 and therefore prevents the sun light fro...

second embodiment

[0018]FIG. 3. shows this invention.

[0019]FIG. 3 shows that the control unit 26 shown in FIG. 2 can be implemented with a pressure difference driven device 23 and an adjusting structure 25. The pressure difference driven device 23 has a first cylinder 231 coupled to the first gas pressure tank 201, a second cylinder 232 coupled to the second gas pressure tank 202. The first cylinder 231 has a pressure equal to that of the first pressure tank 201. The second cylinder 232 has a pressure equal to that of the second pressure tank 202. The cylinders 231, 232 are mechanically coupled to a driven rod 233. The driven rod 233 is still when there is no pressure difference between the two cylinders 231, 232. A pull force can be generated to the driven rod 233 if the pressure of the first cylinder 231 is greater than the pressure of the second cylinder 232, and vice versa, a push force can be generated to the driven rod 233 if the pressure of the first cylinder 231 is smaller than the pressure o...

third embodiment

[0020]FIG. 4. shows this invention.

[0021]FIG. 4 shows a pressure valve 27 coupled to the pipe 241 for adjusting the pressure of the coolant flow.

[0022]FIG. 5. shows a block diagram of embodiments of this invention.

[0023]FIG. 5 shows that a first coolant tank 201 generates a first pressure; a second coolant tank 202 generates a second pressure. The first pressure and the second pressure are coupled to a control system 26 for detecting the difference of the two pressures. The control system 26 is coupled to a driving structure to adjust the solar panel 105 according to the pressure difference of the two pressures.

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Abstract

A first coolant tank is arranged on first side of a solar energy collecting panel, a second coolant tank is arranged on second side of the solar energy collecting panel. A first wall is arranged beside the first coolant tank, a second wall is arranged beside the second coolant tank. When the sun shifts, one of the coolant tanks is covered partially by one of the walls and hence receives less heat than the other. The pressure difference between the two coolant tanks is used to adjust the solar energy collecting panel so that the panel tracks the sun to receive maximum heat.

Description

RELATED APPLICATIONS[0001]The present application is based on, and claims priority from Taiwan Application Serial Number 096138763, filed Oct. 17, 2007, the entire disclosure of which is incorporated by reference herein.TECHNICAL FIELD[0002]This disclosure relates to a sun tracking system for a solar panel that collects and converts solar energy into electricity or heat. More specifically, this disclosure relates to a sun tracking system based on pressure difference.BACKGROUND[0003]FIG. 1 Prior Art[0004]FIG. 1 shows a solar panel 105 having a conventional sun tracking system. The tracking system comprises four photo sensors 101,102,103,104 encircled by a sleeve 120. The four sensors are located in the center of the top surface of the solar panel 105. Photoelectric units 108 for collecting and converting solar energy into electricity are distributed on the top surface of the solar panel 105. The sleeve 120 has an opening for detecting the direction and / or movement of the sun through ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F24J2/38F24S50/20
CPCF24J2/38G01S3/7861Y02E10/50Y02E10/47H01L31/042H02S20/32F24S50/20
Inventor TSAI, HSI-HSUNJENG, DUNG-SHENGFENG, HUI-PING
Owner LIN JEFFERY