Double-glass photovoltaic panel power generation system with reflector and adjustable reflection angle

Abstract

The utility model discloses a double-glass photovoltaic panel power generation system with a reflecting plate and an adjustable reflecting angle, which comprises a double-glass photovoltaic panel, the reflecting plate and a reflecting plate angle regulation and control mechanism, and the reflecting plate is arranged on the reflecting plate angle regulation and control mechanism; the double-glass photovoltaic panel is erected on the photovoltaic panel mounting bracket, and the reflector and the reflector angle regulation and control mechanism are arranged below the side part of the double-glass photovoltaic panel. And the reflector angle regulation and control mechanism drives the reflector to adjust the angle of the reflector, so that sunlight reflected by the reflector can irradiate the back surface of the double-glass photovoltaic panel, and the power generation gain of the back surface of the double-glass photovoltaic panel is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic power generation, and in particular relates to a double-glass photovoltaic panel power generation system with a reflector and an adjustable reflection angle. Background Art

[0002] Double-glass photovoltaic panels are composite photovoltaic panel structures consisting of two pieces of glass on the front and back and solar cells. Both the front and back sides of the double-glass photovoltaic panels can receive sunlight to generate electricity (the front of the double-glass photovoltaic panel is the main light-receiving surface, used to receive direct sunlight, while the back of the double-glass photovoltaic panel can receive reflected sunlight from the roof or ground). Therefore, double-glass photovoltaic panels have a higher power generation capacity than traditional single-glass photovoltaic panels. Double-glass photovoltaic panels also have the advantages of reducing the generation of snail patterns, reducing PID attenuation, extending the life cycle of components, and better weather resistance, and have a good application market.

[0003] At present, the back-side gain power generation of existing double-glass photovoltaic panels is not ideal. The main reason is that the reflection amount of reflected light from the roof or ground is poor and the reflection angle of the reflected light cannot be adjusted. Therefore, there is an urgent need for a double-glass photovoltaic panel power generation system with a reflector and an adjustable reflection angle. Utility Model Content

[0004] The utility model mainly aims to overcome the deficiencies of the prior art and provides a double-glass photovoltaic panel power generation system with a reflector and an adjustable reflection angle.

[0005] The utility model is realized through the following technical solutions:

[0006] A double-glass photovoltaic panel power generation system with a reflector and an adjustable reflection angle comprises: a double-glass photovoltaic panel, a reflector, and a reflector angle adjustment mechanism, wherein the reflector is mounted on the reflector angle adjustment mechanism; the double-glass photovoltaic panel is mounted on a photovoltaic panel mounting bracket, and the reflector and the reflector angle adjustment mechanism are arranged below the side of the double-glass photovoltaic panel.

[0007] In the above technical solution, the photovoltaic panel mounting bracket includes a base, a vertical support beam and a top support beam; the base includes two rows of front and rear support beams, the vertical support beams are vertically fixed on the base, the top support beams are installed on the vertical support beams through connecting parts, and the double-glass photovoltaic panel is installed on the top support beam.

[0008] In the above technical solution, the top support beam of the photovoltaic panel mounting bracket is arranged at an angle.

[0009] In the above technical solution, multiple rows of double-glass photovoltaic panels are arranged in the target installation area, and the multiple rows of double-glass photovoltaic panels are arranged in an intermittent manner. The reflector and the reflector angle control mechanism are set in the gap position between the two adjacent rows of double-glass photovoltaic panels in front and behind, so that the reflector can reflect sunlight to the back side of the double-glass photovoltaic panel corresponding to the front row.

[0010] In the above technical solution, the installation height of the reflective plate is lower than the installation height of the double-glass photovoltaic panel it illuminates.

[0011] In the above technical solution, the reflector angle adjustment mechanism is installed on the base of the photovoltaic panel mounting bracket of the double-glass photovoltaic panel in the rear row, thereby minimizing damage to the ground or roof.

[0012] In the above technical solution, the reflector angle control mechanism includes a reflector mounting frame, a rotary drive motor and a fixed mounting arm. The reflector is fixedly mounted on the reflector mounting frame, and the reflector mounting frame is rotatably mounted on the fixed mounting arm via a rotating shaft. The rotary drive motor is transmission-connected to the rotating shaft of the reflector mounting frame, and then the rotary drive motor drives the reflector mounting frame to adjust its rotation angle, that is, adjust the reflective angle of the reflector, so that the sunlight reflected by the reflector can illuminate the back of the double-glass photovoltaic panel.

[0013] The advantages and beneficial effects of the utility model are:

[0014] The double-glass photovoltaic panel power generation system of the present invention is equipped with a reflector and a reflector angle control mechanism. The reflector angle control mechanism drives the reflector to adjust its angle, so that the sunlight reflected by the reflector can illuminate the back of the double-glass photovoltaic panel, thereby increasing the back power generation gain of the double-glass photovoltaic panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a double-glass photovoltaic panel power generation system with a reflector and adjustable reflection angle according to the present invention.

[0016] Figure 2 This is a schematic diagram of the layout of the double-glass photovoltaic panel power generation system with reflectors and adjustable reflection angles of the present invention.

[0017] Figure 3 This is a schematic diagram of the principle of sunlight reflection and illumination between the reflective plate and the double-glass photovoltaic panel of the present invention.

[0018] Figure 4 Schematic diagram of the calculation principle of the angle between the reflector and the horizontal plane.

[0019] For ordinary technicians in this field, other relevant drawings can be obtained based on the above drawings without any creative work. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with specific embodiments.

[0021] Example 1

[0022] A double-glass photovoltaic panel power generation system with a reflector and adjustable reflection angle, see attached Figure 1 and attached Figure 2 The utility model comprises a double-glass photovoltaic panel 1, a reflector 2, and a reflector angle adjustment mechanism 3. The reflector 2 is mounted on the reflector angle adjustment mechanism 3. The reflector angle adjustment mechanism 3 drives the reflector 2 to adjust its angle, thereby allowing sunlight reflected by the reflector 2 to illuminate the back side of the double-glass photovoltaic panel 1, thereby increasing the back side power generation gain of the double-glass photovoltaic panel. The specific structural design of the utility model is described in detail below with reference to the accompanying drawings.

[0023] The double-glass photovoltaic panel 1 is mounted on a photovoltaic panel mounting bracket 4. Specifically, the photovoltaic panel mounting bracket 4 includes a base 4.1, a vertical support beam 4.2 and a top support beam 4.3; the base 4.1 includes two rows, front and rear, the vertical support beam 4.2 is vertically fixed on the base 4.1, the top support beam 4.3 is installed on the vertical support beam 4.2 through a connecting piece 4.4, the top support beam 4.3 is tilted, and the double-glass photovoltaic panel 1 is installed on the top support beam 4.3.

[0024] The reflector 2 and reflector angle control mechanism 3 are positioned in the gap between two adjacent rows of double-glass photovoltaic panels 1. Specifically, multiple rows of double-glass photovoltaic panels 1 are arranged in a staggered pattern within the target installation area. The reflector 2 and reflector angle control mechanism 3 are positioned in the gap between two adjacent rows of double-glass photovoltaic panels 1. This allows the reflector 2 to reflect sunlight onto the backside of the corresponding double-glass photovoltaic panel 1 in the preceding row.

[0025] Furthermore, the installation height of the reflector 2 is lower than the installation height of the double-glass photovoltaic panels 1 it illuminates. Furthermore, preferably, the reflector angle adjustment mechanism 3 is mounted on the base 4.1 of the photovoltaic panel mounting bracket 4 of the rear row of double-glass photovoltaic panels 1, thereby minimizing damage to the ground or roof (i.e., avoiding the need to duplicate a base specifically for mounting the reflector angle adjustment mechanism 3 on the ground or roof of the target installation area).

[0026] Furthermore, the reflector angle control mechanism 3 includes a reflector mounting frame 3.1, a rotary drive motor 3.2 and a fixed mounting arm 3.3. The reflector 2 is fixedly mounted on the reflector mounting frame 3.1, and the reflector mounting frame 3.1 is rotatably mounted on the fixed mounting arm 3.3 through a rotating shaft. The fixed mounting arm 3.3 is fixed on the base 4.1 of the photovoltaic panel mounting bracket 4 of the double-glass photovoltaic panel 1 in the rear row thereof. The rotary drive motor 3.2 is transmission-connected to the rotating shaft of the reflector mounting frame 3.1, and then the rotary drive motor 3.2 drives the reflector mounting frame 3.1 to adjust its rotation angle, that is, adjust the reflection angle of the reflector 2, so that the sunlight reflected by the reflector 2 can illuminate the back of the double-glass photovoltaic panel 1.

[0027] Example 2

[0028] Based on the first embodiment, this embodiment provides a method for controlling the angle of a reflector, by which the angle of the reflector is adjusted to maximize the amount of light reflected by the reflector on the back of the double-glass photovoltaic panel.

[0029] See attached Figure 3 , is a schematic diagram of the principle of sunlight reflection and illumination between the reflective plate and the double-glass photovoltaic panel of the present invention. In order to maximize the amount of light reflected by the reflective plate on the back of the double-glass photovoltaic panel, it is necessary to make the reflection range of the reflective plate for the received sunlight (i.e., the incident light in the figure) centered on the back of the entire double-glass photovoltaic panel.

[0030] According to the attached Figure 3 It can be seen that the height h1 of the center point O1 of the double-glass photovoltaic panel from the ground, the height h2 of the center point O2 of the reflector from the ground, and the straight-line distance s between the center points O1 of the double-glass photovoltaic panel and O2 of the reflector (i.e., the center distance) are fixed and can be actually measured; and the angle u between the reflector and the horizontal plane is the variable to be adjusted by the present invention, and the angle u can be adjusted by the rotation drive motor of the reflector angle control mechanism 3 so that the reflection range of the reflected light of the reflector to the received sunlight is centered and aligned with the back side of the entire double-glass photovoltaic panel.

[0031] The following is combined with Figure 4 , specifically explain the method for controlling the angle u between the reflector and the horizontal plane.

[0032] Real-time measurement of sunlight (i.e. Figure 4 The incident light in the image) is at an angle a relative to the horizontal plane;

[0033] The actual measurement results show the straight-line distance s between the center point O1 of the double-glass photovoltaic panel and the center point O2 of the reflector;

[0034] The actual measurement results show that the vertical distance difference △h between the center point O1 of the double-glass photovoltaic panel and the center point O2 of the reflector is △h=h1-h2.

[0035] According to the attached Figure 4 , we can get the following relationship:

[0036] m+c+u=90°;

[0037] m+m+c=a;

[0038] c=arcsin△h / s;

[0039] In the above formula, m is sunlight (i.e. Figure 4 The angle between the incident light and the vertical plane of the reflector is also the angle between the reflected light and the vertical plane of the reflector; c is the angle between the reflected light and the horizontal plane.

[0040] According to the above relationship, the formula for calculating the angle u between the reflector and the horizontal plane is obtained: u = 90° - (a + arcsin△h / s) / 2.

[0041] Since arcsin△h / s is a fixed value, the sunlight measured in real time (i.e. Figure 4 The angle a of the incident light relative to the horizontal plane is used. The value of u can be calculated in real time (according to the set time step) using the above u calculation formula.

[0042] The calculated u value is used as the target control angle of the rotary drive motor of the reflector angle control mechanism 3, and the PID control method is adopted to control the rotary drive motor of the reflector angle control mechanism 3 to adjust the angle of the reflector in real time, so as to maximize the amount of light reflected by the reflector on the back of the double-glass photovoltaic panel.

[0043] For ease of explanation, spatial relative terms such as "upper", "lower", "left", and "right" are used in the embodiments to illustrate the relationship between one element or feature shown in the figures and another element or feature. It should be understood that, in addition to the orientation shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "above" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0044] Moreover, relational terms such as “first” and “second” are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any actual relationship or order between these components.

[0045] The above is an exemplary description of the present invention. It should be noted that, without departing from the core of the present invention, any simple deformation, modification or other equivalent replacement that can be made by other technical personnel in this field without expending creative labor falls within the scope of protection of the present invention.

Claims

1. A double-glass photovoltaic panel power generation system with a reflector and adjustable reflection angle, characterized by: It includes a double-glass photovoltaic panel, a reflector and a reflector angle control mechanism, wherein the reflector is mounted on the reflector angle control mechanism; the double-glass photovoltaic panel is mounted on a photovoltaic panel mounting bracket, and the reflector and the reflector angle control mechanism are arranged at the lower side of the double-glass photovoltaic panel.

2. The double-glass photovoltaic panel power generation system with a reflector and adjustable reflection angle according to claim 1 is characterized by: The photovoltaic panel mounting bracket includes a base, a vertical support beam and a top support beam; the base includes two rows of front and rear support beams, the vertical support beams are vertically fixed on the base, the top support beams are installed on the vertical support beams through connecting parts, and the double-glass photovoltaic panel is installed on the top support beam.

3. The double-glass photovoltaic panel power generation system with a reflector and adjustable reflection angle according to claim 2 is characterized by: The top support beam of the photovoltaic panel mounting bracket is arranged obliquely.

4. The double-glass photovoltaic panel power generation system with a reflector and adjustable reflection angle according to claim 1 is characterized by: Multiple rows of double-glass photovoltaic panels are arranged in a staggered manner in the target installation area, and the reflector and reflector angle control mechanism are arranged in the gap between two adjacent rows of double-glass photovoltaic panels.

5. The double-glass photovoltaic panel power generation system with a reflector and adjustable reflection angle according to claim 1 is characterized in that: The installation height of the reflective plate is lower than the installation height of the double-glass photovoltaic panel it illuminates.

6. The double-glass photovoltaic panel power generation system with a reflector and adjustable reflection angle according to claim 4 is characterized in that: The reflector angle control mechanism is installed on the base of the photovoltaic panel mounting bracket of the double-glass photovoltaic panel in the rear row.

7. The double-glass photovoltaic panel power generation system with a reflector and adjustable reflection angle according to claim 1 is characterized in that: The reflector angle adjustment mechanism includes a reflector mounting frame, a rotation drive motor and a fixed mounting arm. The reflector is fixedly mounted on the reflector mounting frame, and the reflector mounting frame is rotatably mounted on the fixed mounting arm via a rotating shaft. The rotation drive motor is transmission-connected to the rotating shaft of the reflector mounting frame.

Images