Multi-optical-fiber light guiding and focusing solar condensation system and optical-fiber light guiding and focusing 3D printing system

Abstract

The utility model discloses a multi-optical-fiber light guiding and focusing solar condensation system and an optical-fiber light guiding and focusing 3D printing system, and belongs to the field of 3D printing. The multi-optical-fiber light guiding and focusing solar condensation system comprises a heliostat module and a convergence module, and the heliostat module determines the position of the sun so that sunlight can vertically enter the convergence module; the gathering module comprises a plurality of light gathering assemblies and can collect sunlight and transmit the sunlight to the optical fiber; the heliostat module comprises a double-axis tracking mechanism, the double-axis tracking mechanism comprises a base, a rotatable azimuth axis is arranged on the base, a rotatable pitch axis perpendicular to the azimuth axis is arranged on the azimuth axis, a mounting plate is fixed to the pitch axis, and a plurality of light condensation assemblies are arranged on the mounting plate; the azimuth axis and the pitch axis can rotate to adjust the azimuth angle and the elevation angle of the condensation assembly. The solar tracking module is used for tracking sunlight, so that the sunlight can vertically enter the converging module to ensure the condensing effect.

Description

Technical Field

[0001] This utility model belongs to the field of 3D printing, specifically relating to a solar concentrator system with multi-fiber light guiding and focusing and a fiber light guiding and focusing 3D printing system. Background Technology

[0002] The multi-fiber light guiding and focusing 3D printing system includes a focusing module that can collect sunlight. The focusing module includes multiple Fresnel light-concentrating components with multiple optical fibers connected to their respective light spots. The optical fibers transmit the light to a designated location, and the beam is shaped by two sets of lenses to converge the stray beams to a point. The filament feeder delivers the filament to the light spot, and the molten deposition model is formed on the printing platform.

[0003] However, the direction of sunlight changes over time. To ensure the concentrating effect of the concentrator, it is necessary to ensure that sunlight can be perpendicularly incident on the concentrating module. Therefore, a solar concentrating system with multi-fiber light guiding and focusing is proposed. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a solar concentrating system with multi-fiber light guiding and focusing and a fiber light guiding and focusing 3D printing system, thereby solving the problems in the prior art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A multi-fiber light-guiding and focusing solar concentrator system includes a heliostat module and a converging module. The heliostat module determines the position of the sun so that sunlight can be perpendicularly incident on the converging module. The converging module includes multiple concentrating components and can collect sunlight and transmit it to optical fibers.

[0007] The sun-fixing module includes a dual-axis tracking mechanism, which includes a base with a rotatable azimuth axis on the base and a rotatable pitch axis perpendicular to the azimuth axis. A mounting plate is fixed on the pitch axis, and multiple light-concentrating components are mounted on the mounting plate. Rotation of the azimuth and pitch axes can adjust the azimuth and elevation angles of the light-concentrating components to track sunlight, ensuring that sunlight is perpendicularly incident on the concentrating module and achieving a concentrating effect.

[0008] Furthermore, both the azimuth and pitch axes are driven to rotate by stepper motors.

[0009] Furthermore, the date-fixing module also includes a photoelectric tracking mechanism, which includes a photoelectric sensor and a silicon solar panel. The silicon solar panel is provided with a cross-shaped light-blocking column, which divides the silicon solar panel into four equal areas. Different incident angles of sunlight result in different light-receiving areas on the silicon solar panel. According to the signal from the photoelectric sensor, a command is issued to drive a stepper motor to rotate and adjust in the direction of the light-receiving area, and finally adjust the photoelectric sensor to align with the sun to achieve photoelectric tracking.

[0010] Furthermore, the focusing assembly includes a lens barrel, with Fresnel lenses and fiber optic connectors respectively disposed at both ends of the lens barrel. An optical fiber is connected to the fiber optic connector, and the Fresnel lenses collect sunlight and transmit it to the optical fiber.

[0011] Furthermore, the Fresnel lens has a diameter of 98 mm and a light transmittance of 93%.

[0012] Furthermore, the lens barrel is made of aluminum alloy.

[0013] Furthermore, the inner wall of the lens tube is coated with a reflective layer.

[0014] Furthermore, the Fresnel radius of the Fresnel lens is 50 mm.

[0015] Furthermore, the converging module includes 36 converging components.

[0016] Fiber optic light guiding and focusing 3D printing system, including the aforementioned multi-fiber light guiding and focusing solar concentrator system.

[0017] The beneficial effects of this utility model are:

[0018] 1. By setting a dual-axis tracking mechanism in the sun-fixing module, the dual-axis tracking mechanism is equipped with mutually perpendicular and rotatable azimuth and pitch axes. The rotation is driven by a stepper motor, thereby adjusting the azimuth and elevation angles of the concentrating component to track sunlight, so that sunlight can be perpendicularly incident on the concentrating module and ensure the concentrating effect.

[0019] 2. By setting a photoelectric tracking mechanism in the date-fixing module and setting a cross-shaped light-blocking column on the silicon solar panel, the silicon solar panel is divided into four equal areas. The light-emitting area on the silicon solar panel changes with the incident angle of sunlight. According to the photoelectric sensor signal, the stepper motor is driven to rotate and adjust towards the light-receiving area. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the solar concentrating system of this utility model;

[0022] Figure 2 This is a schematic diagram of the light-receiving area of ​​the silicon solar panel when sunlight is incident at different angles according to this utility model;

[0023] Figure 3 This is a schematic diagram of the dual-axis tracking mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the light-concentrating component structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the Fresnel lens converging principle of this utility model;

[0026] In the diagram: 1-Fresnel lens, 2-lens tube, 3-fiber optic connector, 4-fiber optic cable, 5-heliostat module, 6-converging module, 7-mounting plate, 8-focusing assembly, 9-azimuth axis, 10-pitch axis. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1 As shown, the multi-fiber guiding and focusing solar concentrator system includes a heliostat module and a focusing module. The heliostat module determines and follows the position of the sun, so that sunlight can be perpendicularly incident on the focusing module. The focusing module includes multiple focusing components to collect sunlight and transmit it to the optical fiber.

[0029] The date-fixing module includes a photoelectric tracking mechanism and a dual-axis tracking mechanism;

[0030] like Figure 3 As shown, the dual-axis tracking mechanism includes a base, a rotatable azimuth axis 9 on the base, a rotatable pitch axis 10 perpendicular to the azimuth axis 9, a mounting plate 7 fixed on the pitch axis 10, and multiple light-concentrating components 8 on the mounting plate 7. Both the azimuth axis and the pitch axis are driven to rotate by stepper motors, thereby adjusting the azimuth and elevation angles of the light-concentrating components to track sunlight, so that sunlight can be perpendicularly incident on the converging module to ensure the light-concentrating effect.

[0031] The photoelectric tracking mechanism includes a photoelectric sensor and a silicon solar panel. The silicon solar panel is equipped with a cross-shaped light-blocking column, which divides the silicon solar panel into four equal areas. The light-receiving area on the silicon solar panel varies depending on the incident angle of sunlight. The photoelectric sensor sends a command to drive a stepper motor to rotate in the direction of the light-receiving area to adjust the photoelectric sensor, and finally adjusts the photoelectric sensor to align with the sun to achieve photoelectric tracking.

[0032] The sunlight intensity signal is transmitted to the control center via an analog-to-digital converter. The electrical signals received by the photoelectric sensor at different locations are compared, amplified, compared, and processed. Then, a command is issued to drive the stepper motor to rotate and adjust, ultimately adjusting the photoelectric sensor to align with the sunlight, thus achieving photoelectric tracking.

[0033] Specifically, such as Figure 2 As shown, the cross-shaped shading column divides the solar silicon cells into four regions: A, B, C, and D. The angle between sunlight and the silicon cell plane is defined as θ, where 0° represents 0% of the area receiving sunlight and 1° represents 100% of the area receiving sunlight. When 0° < θ < 90°, solar silicon cells B and D receive sunlight, and the photoelectric sensor signals instruct stepper motors to rotate in the B and D directions for adjustment. Similarly, when 90° < θ < 120°, solar silicon cells A and C receive sunlight, and the photoelectric sensor signals instruct stepper motors to rotate in the A and C directions for adjustment. This continues until θ = 90°, at which point A = B = C = D = 1, ensuring uniform sunlight distribution across all four silicon cells, thus completing the solar timer.

[0034] like Figure 4 As shown, the focusing assembly 8 includes a lens barrel 2, with Fresnel lenses 1 and fiber optic connectors 3 respectively disposed at both ends of the lens barrel 2. Fiber optic connectors 3 are connected to fiber optic cables 4. The Fresnel lenses collect sunlight and transmit it to the fiber optic cables 4.

[0035] A Fresnel lens is a planar lens developed from a spherical lens. Since its continuous curved surface structure is the only part that converges light rays and forms an image, a Fresnel lens is obtained by removing the part that does not affect the curvature of the original lens, while retaining the effective refractive part. Figure 5 The diagram illustrates the converging principle of Fresnel lens 1. Due to its light weight, high transparency, stable performance, and excellent optical properties, polymethyl methacrylate (PMMA) has become the mainstream material for manufacturing Fresnel lens 1.

[0036] In this embodiment, the optical parameters of Fresnel lens 1 are shown in Table 1:

[0037] Table 1 Fresnel lens parameters

[0038]

[0039] In this embodiment, the lens barrel 2 is made of aluminum alloy and serves to protect against dust and fix the Fresnel lens 1. The inner wall of the lens barrel 2 is coated with a reflective layer to improve the collection efficiency. The fiber optic clip 3 is used to fix the fiber optic cable, ensuring that the fiber optic port is in a fixed position with the Fresnel focusing spot.

[0040] In this embodiment, the converging module 6 includes 36 converging components 8, which are equally distributed on both sides of the azimuth axis 9.

[0041] In this embodiment, the Fresnel radius is 50 mm, and the area of ​​sunlight gathered by a single Fresnel lens 1 is π × (0.05). 2 =0.00785m 2 Therefore, the total focusing area of ​​the 36 focusing modules is 36 × π × (0.05). 2 ≈0.28m 2 Based on a solar irradiance of 1350 W / m 2 Therefore, the total solar concentrating area can collect 1350 × 0.28 = 378 W of solar energy.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A solar concentrating system with multi-fiber light guiding and focusing, characterized in that, It includes a sun-fixing module and a converging module. The sun-fixing module determines the position of the sun so that sunlight can be incident perpendicularly on the converging module. The converging module includes multiple concentrating components and can collect sunlight and transmit it to optical fibers. The date-fixing module includes a dual-axis tracking mechanism, which includes a base, a rotatable azimuth axis on the base, a rotatable pitch axis perpendicular to the azimuth axis, a mounting plate fixed on the pitch axis, and multiple focusing components on the mounting plate; the rotation of the azimuth axis and the pitch axis can adjust the azimuth angle and elevation angle of the focusing components.

2. The solar concentrating system with multi-fiber light guiding and focusing according to claim 1, characterized in that, Both the azimuth and pitch axes are driven by stepper motors.

3. The solar concentrating system with multi-fiber light guiding and focusing according to claim 2, characterized in that, The date-fixing module also includes a photoelectric tracking mechanism, which includes a photoelectric sensor and a silicon solar panel. The silicon solar panel is provided with a cross-shaped light-blocking column, which divides the silicon solar panel into four equal areas. Different incident angles of sunlight result in different light-receiving areas on the silicon solar panel. Based on the signal from the photoelectric sensor, a stepper motor is driven to rotate in the direction of the light-receiving area to adjust the photoelectric sensor, and finally, the photoelectric sensor is adjusted to align with the sun to achieve photoelectric tracking.

4. The solar concentrating system with multi-fiber light guiding and focusing according to claim 1, characterized in that, The focusing assembly includes a lens tube, with Fresnel lenses and fiber optic connectors at both ends of the lens tube. An optical fiber is connected to the fiber optic connector, and the Fresnel lenses collect sunlight and transmit it to the optical fiber.

5. The solar concentrating system with multi-fiber light guiding and focusing according to claim 4, characterized in that, The Fresnel lens has a diameter of 98 mm and a light transmittance of 93%.

6. The solar concentrating system with multi-fiber light guiding and focusing according to claim 4, characterized in that, The lens barrel is made of aluminum alloy.

7. The solar concentrating system with multi-fiber light guiding and focusing according to claim 4, characterized in that, The inner wall of the lens barrel is coated with a reflective layer.

8. The solar concentrating system with multi-fiber light guiding and focusing according to claim 4, characterized in that, The Fresnel radius of the Fresnel lens is 50 mm.

9. The solar concentrating system with multi-fiber light guiding and focusing according to claim 1, characterized in that, The focusing module includes 36 focusing components.

10. A fiber optic light guiding and focusing 3D printing system, characterized in that, The solar concentrator system includes the multi-fiber light guiding and focusing system as described in any one of claims 1-9.

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