Photovoltaic panel double-shaft tracking device

Abstract

The utility model provides a photovoltaic panel double-shaft tracking device which comprises a fixing frame, the fixing frame is hinged to a photovoltaic panel frame, a photovoltaic panel is installed on the photovoltaic panel frame, a telescopic rod with one end hinged to the photovoltaic panel frame is rotationally connected to the fixing frame, a stand column is vertically fixed to the lower end of the fixing frame, and the stand column is inserted into a vertical cylinder to be rotationally connected. The multiple stand columns located on the same straight line are in transmission connection with a rotating shaft coaxially fixed end to end, a shell capable of forming a cavity is fixed to the lower end of the vertical cylinder, worm wheels are fixedly connected to the stand columns in the shell in a sleeved mode, the rotating shaft penetrates through the shell and is rotationally connected with the shell, and spiral teeth are arranged on the rotating shaft located in the shell and meshed with the worm wheels. According to the photovoltaic panel double-shaft tracking device, the plurality of photovoltaic panels fixed on the same straight line can rotate synchronously, the plurality of photovoltaic panels can be controlled to rotate along with the azimuth angle of the sun only through one set of driving motor and a solar automatic tracking device, and the cost of photovoltaic equipment is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to a photovoltaic panel pitch and direction adjusting technology, in particular to a photovoltaic panel double-axis tracking device. BACKGROUND

[0002] The photovoltaic panel adjusts the pitch and direction through two rotating shafts, the pitch adjustment enables the photovoltaic panel to follow the altitude angle of the sun, and the direction rotation enables the photovoltaic panel to follow the azimuth angle of the sun, so that the purpose of tracking the direct sunlight is achieved.

[0003] The existing photovoltaic panel double-axis tracking device controls the rotating azimuth angle of the photovoltaic panel on each fixed frame through a separate driving motor. The driving motor needs to sense the light angle and intensity, and then accurately rotate the direction of the photovoltaic panel to make the sun directly irradiate on the photovoltaic panel, so that the maximum utilization rate is achieved and the power generation is improved. However, the cost of the driving motor for accurately controlling the rotating direction of the photovoltaic panel is high, and the driving motor is separately arranged on each fixed frame to control the rotation of the single fixed frame, which leads to the cost increase of the photovoltaic equipment. CONTENT OF THE INVENTION

[0004] The application provides a photovoltaic panel double-axis tracking device to solve the problem of high cost of the existing photovoltaic panel double-axis tracking device which controls the rotating direction through a separate driving motor.

[0005] The application provides a photovoltaic panel double-axis tracking device, which comprises a fixed frame, the fixed frame is hingedly connected with a photovoltaic panel frame, a photovoltaic panel is arranged on the photovoltaic panel frame, a telescopic rod with one end hingedly connected with the photovoltaic panel frame is rotationally connected to the fixed frame, a vertical column is vertically fixed to the lower end of the fixed frame, the vertical column is rotationally connected to a vertical cylinder, a plurality of vertical columns located on the same straight line are transmissionally connected with a rotating shaft coaxially fixed at the tail end, a shell capable of forming a cavity is fixed to the lower end of the vertical cylinder, a worm gear is sleeved and fixed to the vertical column in the shell, the rotating shaft penetrates through the shell and is rotationally connected with the shell, a helical tooth is arranged on the rotating shaft in the shell and is engaged with the worm gear.

[0006] Optionally, the tail ends of the two adjacent rotating shafts are coaxially fixed through a shaft coupling.

[0007] Optionally, a horizontal rod is transversely fixed to the upper end of the fixed frame, and a support for horizontally supporting the photovoltaic panel frame is fixed to the horizontal rod.

[0008] Optionally, the support is made of a magnet and can be magnetically fixed to the photovoltaic panel frame made of a magnetic material.

[0009] Optionally, the shell is provided with a maintenance opening capable of being opened and closed.

[0010] Optionally, a flange plate capable of being connected with a ground pre-buried part is fixed to the lower end of the vertical cylinder.

[0011] Compared with the prior art, the photovoltaic panel double-axis tracking device provided by the application has the beneficial effects that:

[0012] By engaging the rotating shaft with the worm gear and fixing the worm gear with the fixed frame, rotating the rotating shaft can make the photovoltaic panel rotate along the azimuth angle of the sun. A plurality of photovoltaic panels fixed on the same straight line are connected by the tail-to-head rotating shaft transmission, and can rotate synchronously. Only one set of driving motor and solar automatic tracking device is needed to control the rotation of the plurality of photovoltaic panels along the azimuth angle of the sun, thereby reducing the cost of photovoltaic equipment. At the same time, the worm gear and worm transmission connection rotating mode has a long service life and a self-locking function. When the photovoltaic panel is affected by wind force, the vertical column will not be driven to rotate in the reverse direction, and the stability effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0014] Figure 1 The structure schematic diagram of the photovoltaic panel double-axis tracking device provided by an embodiment of the application is shown in the figure.

[0015] Figure 2 The photovoltaic panel double-axis tracking device provided by an embodiment of the application is shown in the figure. Figure 1 The left view of the partial cross-sectional view is shown in the figure.

[0016] Figure 3 The cross-sectional view of the housing of the photovoltaic panel double-axis tracking device provided by an embodiment of the application is shown in the figure.

[0017] Figure 4 The rotating shaft connection schematic diagram of the photovoltaic panel double-axis tracking device provided by an embodiment of the application is shown in the figure.

[0018] Figure 5 The horizontal support schematic diagram of the photovoltaic panel of the photovoltaic panel double-axis tracking device provided by an embodiment of the application is shown in the figure.

[0019] Explanation of reference signs:

[0020] Fixed frame 1, photovoltaic panel frame 2, photovoltaic panel 3, telescopic rod 4, vertical column 5, vertical cylinder 6, worm gear 7, housing 8, rotating shaft 9, shaft coupling 10, cross bar 11, support 12, flange plate 13. DETAILED DESCRIPTION

[0021] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are clearly and completely described below. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0022] As shown in Figures 1-5 An embodiment of the present application provides a photovoltaic panel biaxial tracking device, which comprises a fixed frame 1, the fixed frame 1 is hinged with a photovoltaic panel frame 2, a photovoltaic panel 3 is installed on the photovoltaic panel frame 2, the fixed frame 1 is rotationally connected with an extension rod 4 having one end hinged with the photovoltaic panel frame 2, a vertical column 5 is vertically fixed at the lower end of the fixed frame 1, the vertical column 5 is rotationally connected by being inserted into a vertical cylinder 6, a plurality of vertical columns 5 located on the same straight line are drivingly connected with a rotating shaft 9 coaxially fixed at the end, a shell 8 capable of forming a cavity is fixed at the lower end of the vertical cylinder 6, a worm gear 7 is sleeved and fixed on the vertical column 5 in the shell 8, the rotating shaft 9 penetrates through the shell 8 and is rotationally connected therewith, the rotating shaft 9 located in the shell 8 is provided with a helical tooth and is engaged with the worm gear 7.

[0023] In use, a plurality of photovoltaic panels 3 arranged in a straight line through the fixed frame 1 and the photovoltaic panel frame 2 are connected through the rotating shaft 9 coaxially fixed at the end. The extension and contraction of the extension rod 4 can adjust the pitch angle of the photovoltaic panel frame 2 to control the photovoltaic panel 3, so that the photovoltaic panel 3 is adjusted along with the altitude angle of the sun. The rotating shaft 9 at the end is fixed with the output shaft of the servo motor, and rotating the rotating shaft 9 can drive the vertical column 5 to rotate through the worm gear 7 engaged therewith, so that the photovoltaic panel 3 rotates along with the azimuth angle of the sun. Rotating the rotating shaft 9 through the servo motor can synchronously rotate a plurality of photovoltaic panels 3 on the same straight line.

[0024] In the embodiment, the rotating shaft 9 is engaged with the worm gear 7, the worm gear 7 is fixed with the fixed frame 1, and rotating the rotating shaft 9 can make the photovoltaic panel 3 rotate along with the azimuth angle of the sun. A plurality of photovoltaic panels 3 fixed on the same straight line are drivingly connected through the rotating shaft 9 connected at the end, and can be synchronously rotated. Only one set of driving motor and solar automatic tracking device is needed to control a plurality of photovoltaic panels 3 to rotate along with the azimuth angle of the sun, thereby reducing the cost of photovoltaic equipment. At the same time, the driving connection rotating mode of the worm gear and the worm has a long service life and has a self-locking function. When the photovoltaic panel 3 is affected by wind force, the vertical column 5 will not be driven to rotate in the reverse direction, and the stability effect is good.

[0025] In a possible implementation, the two ends of the two adjacent rotating shafts 9 are coaxially fixed through a shaft coupling 10 respectively.

[0026] The shaft coupling 10 can not only play a role in connecting driving power, but also has the ability of overload protection, so that the machine part can be prevented from bearing excessive load. At the same time, it is convenient to disassemble and maintain the adjacent two rotating shafts 9.

[0027] In a possible implementation, the upper end of the fixed frame 1 is transversely fixed with a crossbar 11, and the crossbar 11 is fixed with a support 12 for horizontally supporting the photovoltaic panel frame 2.

[0028] In strong wind, the telescopic rod 4 is extended to horizontally set the photovoltaic panel frame 2 and the photovoltaic panel 3, so as to reduce the wind resistance. When the photovoltaic panel frame 2 is horizontal, the bottom surface is attached to the support 12, and the support 12 supports and stabilizes the photovoltaic panel frame 2, so as to reduce the shaking of the photovoltaic panel frame 2 and the photovoltaic panel 3 caused by the wind.

[0029] In a possible implementation, the support 12 is made of a magnet, and can be magnetically fixed with the photovoltaic panel frame 2 made of a magnetic material.

[0030] When the photovoltaic panel frame 2 is horizontal, the support 12 made of a magnet is magnetically fixed with the photovoltaic panel frame 2, so as to support and reinforce the photovoltaic panel frame 2 and the photovoltaic panel 3, and further reduce the shaking.

[0031] In a possible implementation, the shell 8 is provided with a maintenance opening capable of being opened and closed.

[0032] The rotating shaft 9 and the worm gear 7 in the shell 8 are maintained and cleaned through the maintenance opening.

[0033] In a possible implementation, the lower end of the vertical cylinder 6 is fixed with a flange plate 13 capable of being connected with a ground pre-buried part.

[0034] The vertical cylinder 6 is conveniently disassembled and fixed through the flange plate 13, and the photovoltaic equipment is installed according to the site condition.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that; they can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A biaxial tracking device for photovoltaic panels, comprising a fixed frame (1) hinged to a photovoltaic panel frame (2) on which a photovoltaic panel (3) is mounted, said fixed frame (1) being connected rotatably to an extension rod (4) having one end hinged to the photovoltaic panel frame (2), characterized in that: The lower end of the fixing frame (1) is vertically fixed with a stand column (5), the stand column (5) is rotatably connected in a vertical cylinder (6), a plurality of stand columns (5) located on the same straight line are drivingly connected with a rotating shaft (9) coaxially fixed at the end, the lower end of the vertical cylinder (6) is fixed with a shell (8) capable of forming a cavity, the stand column (5) in the shell (8) is fixedly sleeved with a worm wheel (7), the rotating shaft (9) penetrates through the shell (8) and is rotatably connected therewith, the rotating shaft (9) located in the shell (8) is provided with a helical tooth and is engaged with the worm wheel (7).

2. The photovoltaic panel dual axis tracking device according to claim 1, characterized in that: The two ends of the two adjacent rotating shafts (9) are coaxially fixed by a shaft coupling (10) respectively.

3. The photovoltaic panel dual axis tracking device according to claim 1, characterized in that: The upper end of the fixing frame (1) is transversely fixed with a horizontal rod (11), the horizontal rod (11) is fixed with a support (12) for horizontally supporting the photovoltaic panel frame (2).

4. The photovoltaic panel dual axis tracking device according to claim 3, characterized in that: The support (12) is made of a magnet and can be magnetically fixed with the photovoltaic panel frame (2) made of a magnetic material.

5. The photovoltaic panel dual axis tracking device according to claim 1, characterized in that: The shell (8) is provided with a maintenance opening capable of being opened and closed.

6. The photovoltaic panel biaxial tracking device according to any of claims 1-5, characterized in that: The lower end of the vertical cylinder (6) is fixed with a flange plate (13) capable of being connected with a ground pre-buried part.

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