Zoom focusing lens robot photovoltaic power generation unit complete machine

Abstract

The invention discloses a photovoltaic power generation unit of a zoom focusing lens robot, comprising a zoom focusing lens device, a bracket and a solar cell panel, wherein the zoom focusing lens device comprises a guide rail, a light-transmitting substrate, a fixed-focus focusing unit, a variable-distance lens group, a shading plate and a sliding drive mechanism; the fixed-focus focusing unit is arranged on the light-transmitting substrate; the variable-distance lens group is arranged on the light-transmitting substrate and is located on the side of the fixed-focus focusing unit; the variable-distance lens group comprises a plurality of zoom focusing units which are arranged in sequence close to each other, the zoom focusing unit has a protruding side and a recessed side, and the curvature of the light-transmitting surface of the zoom focusing unit increases exponentially; the shading plate is slidably connected to the guide rail, the shading plate corresponds to the variable-distance lens group one by one, the shading plate is provided with a plurality of light-transmitting grooves at intervals, and the light-transmitting grooves are arranged one by one with the zoom focusing units; the invention has small overall axial space occupancy, simple structure, high stability, high photovoltaic power generation efficiency and long service life.

Description

Technical Field

[0001] The invention relates to a photovoltaic power generation unit complete machine of a zoom focusing lens robot. Background Art

[0002] In order to adapt to the changes in external light intensity, such as in rainy weather with low light intensity, the focal length of the focusing lens needs to be reduced, and in the afternoon when the light intensity is relatively strong, the focal length of the focusing lens needs to be increased. For this purpose, a lens zoom structure has been proposed. However, the existing lens zoom structure usually achieves focal length adjustment by combining multiple lenses in overlap with a displacement mechanism. This zoom structure occupies a relatively large axial space and has a relatively complex structure, which makes the stability of the entire zoom structure poor and cannot be applied to occasions with limited axial space, such as solar power generation devices.

[0003] Therefore, the solar panels in the existing solar power generation devices do not have an optical focusing structure on the outside, and only rely on natural light for photovoltaic power generation. However, under natural conditions, the intensity of sunlight varies greatly, resulting in the current solar panels having very low photovoltaic power generation efficiency in rainy weather with low light intensity, or even being unable to generate photovoltaic power. When the sunlight intensity is relatively strong and the temperature is high, the sunlight shining on the solar panels causes the temperature of the panels to rise too high, shortening the service life of the solar panels. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a photovoltaic power generation unit of a zoom focusing lens robot.

[0005] To achieve the above object, the specific scheme of the present invention is as follows:

[0006] A photovoltaic power generation unit of a zoom focusing lens robot comprises a zoom focusing lens device, a bracket and a solar panel. The solar panel is installed below the zoom focusing lens device through the bracket.

[0007] The present invention further provides that the zoom focusing lens device comprises two guide rails, a light-transmitting substrate, two fixed-focus focusing units, two groups of variable-distance lens groups, two shading plates and two sliding drive mechanisms;

[0008] The light-transmitting substrate is fixed between the two guide rails; the two fixed-focus focusing units are symmetrically arranged at the middle of the bottom surface of the light-transmitting substrate; the two groups of variable-distance lens groups are both arranged at the bottom surface of the light-transmitting substrate and are symmetrically distributed on both sides of the two fixed-focus focusing units; each group of the variable-distance lens groups includes a plurality of variable-focus focusing units arranged in sequence, the light-transmitting surface of the variable-focus focusing unit is an involute structure, the variable-focus focusing unit has a protruding side and a concave side, the protruding side is arranged close to the middle of the light-transmitting substrate, and the curvature of the light-transmitting surface of the variable-focus focusing unit is The rate increases exponentially from the protruding side to the recessed side; the two ends of the two shading plates are slidably connected to the two guide rails and are located above the light-transmitting substrate; the two shading plates are symmetrically arranged with each other, and the two shading plates are arranged one by one with the two groups of variable-pitch lens groups; each of the shading plates is provided with a plurality of light-transmitting grooves spaced apart, and the plurality of light-transmitting grooves located on the same side are arranged one by one with the plurality of variable-focal-length focusing units located on the same side; the two sliding drive mechanisms are symmetrically distributed on the two guide rails, and are used to enable the two shading plates to slide back and forth synchronously.

[0009] Furthermore, in the present invention, the spacing between the plurality of light-transmitting grooves increases linearly outward from the middle of the light-transmitting substrate along a direction parallel to the guide rail, and the groove widths between the light-transmitting grooves are the same.

[0010] The present invention further comprises each of the sliding drive mechanisms comprising a dual-output shaft motor and two drive nuts, the dual-output shaft motor being fixed on the guide rail, the two drive nuts being respectively threadedly connected to the two output ends of the dual-output shaft motor, and the thread rotation directions of the two drive nuts being opposite, and the two drive nuts being respectively fixedly connected to the two shading plates.

[0011] The present invention further comprises that the middle portion of the guide rail is provided with a receiving groove for receiving the sliding drive mechanism; a guide groove is provided on the guide rail, the guide groove is communicated with the receiving groove, and the end of the shading plate is movably embedded in the guide groove.

[0012] In the present invention, the light-transmitting substrate is an acrylic plate or optical glass.

[0013] The beneficial effects of the present invention are as follows: the present invention drives the shading plate to move under different external light intensities, and cooperates with the curvature of the zoom focusing unit to increase exponentially from the protruding side to the recessed side, so that the light-transmitting groove corresponds to the different curvature parts of the zoom focusing unit, thereby realizing the adjustment of the focal length of the light, thereby adapting to different external light intensities. The overall axial space occupancy is small, the structure is simple, and there is no need to move each focusing unit, the stability is high, and it is suitable for solar power generation devices.

[0014] The present invention can greatly improve the photovoltaic power generation efficiency of the solar cell panel and is beneficial to prolonging the service life of the solar cell panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a stereogram of the present invention;

[0016] Figure 2 It is a stereogram of another viewing angle of the present invention;

[0017] Figure 3 is a stereoscopic diagram of a variable focal length focusing lens device of the present invention;

[0018] Figure 4 is a stereoscopic diagram of the zoom focusing lens device of the present invention from another viewing angle;

[0019] Figure 5 is an isometric side cross-sectional view of a variable focal length condenser lens device of the present invention;

[0020] Figure 6 is a perspective view of a sunshade of the present invention;

[0021] Explanation of the reference numerals: a1, variable focal length focusing lens device; a2, bracket; a3, solar cell panel; 1, guide rail; 2, light-transmitting substrate; 3, fixed focal length focusing unit; 4, variable distance lens group; 41, variable focal length focusing unit; 5, shading plate; 51, light-transmitting groove; 6, sliding drive mechanism; 61, dual output shaft motor; 62, driving nut. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the implementation scope of the present invention is not limited thereto.

[0023] like Figures 1 to 6 As shown, the zoom focusing lens robot photovoltaic power generation unit described in this embodiment includes a zoom focusing lens device a1, a bracket a2 and a solar panel a3, and the solar panel a3 is installed below the zoom focusing lens device a1 through the bracket a2.

[0024] In actual use, the variable focal length focusing lens device a1 changes the focal length so that the light is focused on the solar cell panel a3, thereby enhancing the effective illumination intensity of the solar cell panel a3 and improving the photovoltaic power generation efficiency of the solar cell panel a3 in rainy weather. When the illumination intensity is strong, the light will not be focused on the solar cell panel a3, thereby avoiding excessive temperature rise of the solar cell panel a3 and helping to extend the service life of the solar cell panel a3.

[0025] Based on the above embodiment, further, the zoom focusing lens device a1 comprises two guide rails 1, a transparent substrate 2, two fixed focal length focusing units 3, two groups of variable distance lens groups 4, two shading plates 5 and two sliding drive mechanisms 6;

[0026] The light-transmitting substrate 2 is fixed between the two guide rails 1; the two fixed-focus focusing units 3 are symmetrically arranged in the middle of the bottom surface of the light-transmitting substrate 2; the two groups of variable-distance lens groups 4 are both arranged on the bottom surface of the light-transmitting substrate 2, and are symmetrically distributed on both sides of the two fixed-focus focusing units 3; each group of the variable-distance lens groups 4 includes a plurality of variable-focus focusing units 41 arranged in sequence, the light-transmitting surface of the variable-focus focusing unit 41 is an involute structure, the variable-focus focusing unit 41 has a protruding side and a concave side, the protruding side is arranged close to the middle of the light-transmitting substrate 2, and the light-transmitting surface of the variable-focus focusing unit 41 is The curvature increases exponentially from the protruding side to the concave side; the two ends of the two shading plates 5 are slidably connected to the two guide rails 1 and are located above the light-transmitting substrate 2. The two shading plates 5 are symmetrically arranged with each other, and the two shading plates 5 correspond to the two groups of variable-length lens groups 4 one by one. Each of the shading plates 5 is spaced apart and provided with a plurality of light-transmitting grooves 51, and the plurality of light-transmitting grooves 51 located on the same side correspond to the plurality of variable-focus focusing units 41 located on the same side one by one; the two sliding drive mechanisms 6 are symmetrically distributed on the two guide rails 1, and are used to enable the two shading plates 5 to slide back and forth synchronously. In this embodiment, preferably, the light-transmitting substrate 2 is an acrylic plate or optical glass, which is low in cost.

[0027] When the present embodiment is actually used, the two groups of zoom lens groups 4 and the two fixed-focus focusing units 3 form a Fresnel lens structure. When the external light intensity is relatively strong, the two sliding drive mechanisms 6 synchronously drive the two shading plates 5 to move toward each other, that is, to move closer to the center, so that each light-transmitting groove 51 corresponds to a partial area of ​​the concave side of each zoom focusing unit 41. At this time, the light passes through the light-transmitting groove 51 through the light-transmitting substrate 2 and irradiates into a partial area of ​​the concave side of each zoom focusing unit 41. Since the curvature of the zoom focusing unit 41 increases exponentially from the protruding side to the concave side, the focal length of the zoom focusing unit 41 gradually increases from the protruding side to the concave side. Therefore, when the light is incident on the partial area of ​​the concave side, the light passes through the zoom focusing unit 41. After being refracted, the light is incident on the solar cell panel a3. Due to the increase in focal length, the light convergence point is not on the solar cell panel a3, thereby reducing the light intensity of the solar cell panel a3 and preventing the solar cell panel a3 from overheating. Similarly, when the external light intensity is relatively weak, the two sliding drive mechanisms 6 synchronously drive the two shading plates 5 to move, so that each light-transmitting groove 51 corresponds to the protruding side portion of each variable focal length focusing unit 41. Due to the decrease in focal length of the light, the light is focused on the solar cell panel a3 to enhance the effective light intensity of the solar cell panel a3 and improve the photovoltaic power generation efficiency of the solar cell panel a3 under weak light conditions. In this way, it adapts to changes in external light intensity and has a higher photovoltaic power generation efficiency.

[0028] This embodiment drives the shading plate 5 to move under different external light intensities, and cooperates with the curvature of the zoom focusing unit 41 to increase exponentially from the protruding side to the recessed side, so that the light-transmitting groove 51 corresponds to the different curvature parts of the zoom focusing unit 41, thereby realizing the adjustment of the focal length of the light, thereby adapting to different external light intensities. The overall axial space occupancy is small, the structure is simple, and there is no need to move each focusing unit. The stability is high and it is suitable for solar power generation devices.

[0029] This embodiment can greatly improve the photovoltaic power generation efficiency of the solar cell panel a3 and at the same time help to extend the service life of the solar cell panel a3.

[0030] Based on the above embodiment, further, the spacing between the plurality of light-transmitting grooves 51 increases linearly outward from the middle of the light-transmitting substrate 2 along a direction parallel to the guide rail 1, and the groove widths between the light-transmitting grooves 51 are the same. Through the above structural arrangement, the imaging continuity of each zoom focusing unit 41 is further ensured.

[0031] Based on the above embodiment, further, each of the sliding drive mechanisms 6 includes a dual-output shaft motor 61 and two drive nuts 62, the dual-output shaft motor 61 is fixed on the guide rail, the two drive nuts 62 are respectively threadedly connected to the two output ends of the dual-output shaft motor 61, and the thread rotation directions of the two drive nuts 62 are opposite, and the two drive nuts 62 are respectively fixedly connected to the two shading plates 5. In this way, the thread rotation directions of the two drive nuts 62 are opposite, and when the two output ends of the dual-output shaft motor 61 drive the drive nuts 62 to move, the movement directions of the two drive nuts 62 are opposite, so that the two shading plates 5 can be synchronously moved outward or inward, and the orientation of the light-transmitting groove 51 can be changed, thereby achieving the purpose of adjusting the focal length of the light, and the structure is simple, there is no need to move each focusing unit, and the stability is good.

[0032] Based on the above embodiment, further, the middle portion of the guide rail 1 is provided with an accommodating groove for accommodating the sliding drive mechanism 6. Through the above structural arrangement, the volume of the entire structure is further reduced.

[0033] Based on the above embodiment, further, a guide groove is provided on the guide rail 1, the guide groove is communicated with the accommodating groove, and the end of the sunshade 5 is movably embedded in the guide groove. Through the above structural setting, the volume of the entire structure can be further reduced, and at the same time, the guide groove is arranged to communicate with the accommodating groove so as to drive the fixed connection between the nut 62 and the sunshade 5, and the assembly is more convenient.

[0034] The above is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the protection scope of the patent application of the present invention.

Claims

1. A photovoltaic power generation unit robot with variable focal length focusing lens, characterized in that: It comprises a variable focal length condensing lens device (a1), a bracket (a2) and a solar cell panel (a3), wherein the solar cell panel (a3) ​​is installed below the variable focal length condensing lens device (a1) through the bracket (a2); The variable focal length condensing lens device (a1) comprises two guide rails (1), a light-transmitting substrate (2), two fixed focal length condensing units (3), two groups of variable focal length lens groups (4), two light shielding plates (5) and two sliding drive mechanisms (6); The light-transmitting substrate (2) is fixedly arranged between the two guide rails (1); The two fixed-focus focusing units (3) are symmetrically arranged in the middle of the bottom surface of the light-transmitting substrate (2); The two variable-length lens groups (4) are both arranged on the bottom surface of the transparent substrate (2) and are symmetrically distributed on both sides of the two fixed-focus focusing units (3); each variable-length lens group (4) comprises a plurality of variable-focus focusing units (41) arranged in sequence, the light-transmitting surface of the variable-focus focusing unit (41) being an involute structure, the variable-focus focusing unit (41) having a protruding side and a concave side, the protruding side being arranged close to the middle of the transparent substrate (2), and the curvature of the light-transmitting surface of the variable-focus focusing unit (41) increasing exponentially from the protruding side to the concave side; The two ends of the two light shielding plates (5) are slidably connected to the two guide rails (1) and are located above the light-transmitting substrate (2); the two light shielding plates (5) are symmetrically arranged with each other; the two light shielding plates (5) are arranged one by one with the two variable-focus lens groups (4); each of the light shielding plates (5) is provided with a plurality of light-transmitting grooves (51) at intervals; the plurality of light-transmitting grooves (51) located on the same side are arranged one by one with the plurality of variable-focus focusing units (41) located on the same side; The two sliding drive mechanisms (6) are symmetrically distributed on the two guide rails (1) and are used to enable the two shading plates (5) to slide back and forth synchronously.

2. The photovoltaic power generation unit of the zoom focusing lens robot according to claim 1 is characterized by: The spacing between the plurality of light-transmitting grooves (51) increases linearly outward from the middle of the light-transmitting substrate (2) along a direction parallel to the guide rail (1), and the groove widths between the light-transmitting grooves (51) are the same.

3. The photovoltaic power generation unit of the zoom focusing lens robot according to claim 1 is characterized by: Each of the sliding drive mechanisms (6) comprises a dual-output shaft motor (61) and two drive nuts (62); the dual-output shaft motor (61) is fixed on the guide rail (1); the two drive nuts (62) are respectively threadedly connected to the two output ends of the dual-output shaft motor (61); the threads of the two drive nuts (62) are in opposite directions; the two drive nuts (62) are respectively fixedly connected to the two shading plates (5).

4. The photovoltaic power generation unit of the zoom focusing lens robot according to claim 1 is characterized in that: The middle part of the guide rail (1) is provided with a receiving groove for receiving the sliding drive mechanism (6); a guide groove is provided on the guide rail (1), the guide groove is communicated with the receiving groove, and the end of the shading plate (5) is movably embedded in the guide groove.

5. The photovoltaic power generation unit of the zoom focusing lens robot according to claim 1, characterized in that: The light-transmitting substrate (2) is an acrylic plate or optical glass.

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