A solar energy collection device

Abstract

The utility model provides a kind of solar energy collection device, it is related to solar energy collection structure technical field, comprising: support;Light collection module is located on the support, including lens array and optical fiber bundle, wherein the end face of each optical fiber is located at the focal point position of each lens;Photovoltaic assembly is located on the support, including photovoltaic panel and energy storage module, to provide electric energy by collecting solar light passing through lens, solve the problem of inconvenient use of additional power supply required by existing solar light collection device.

Description

Technical Field

[0001] This utility model relates to the field of solar energy collection structure technology, and in particular to a solar energy collection device. Background Technology

[0002] With the continued growth of global energy demand, the development and utilization of clean and renewable alternative energy sources has become a global consensus. The core of solar energy utilization lies in the efficient, reliable, and economical collection of solar radiation energy, and its technical principles are mainly based on the photoelectric effect and photothermal conversion. Solar collectors output sunlight that can be used for lighting or heat collection. While they are energy output devices, they also consume electricity during operation. Currently, some solar collectors are connected to mains power, which greatly limits their application scenarios, and in areas where mains power is available, sunlight and heat can easily be converted into electricity. Furthermore, some solar collectors use an external battery, which may lead to frequent battery swapping or charging. Therefore, a solution is needed to address these issues. Utility Model Content

[0003] In order to overcome the above-mentioned technical defects, the purpose of this utility model is to provide a solar energy collection device to solve the problem that existing solar energy collection devices require additional power supply and are inconvenient to use.

[0004] This utility model discloses a solar energy collection device, comprising: support; A light-gathering module, located on the support, includes a lens array and an optical fiber bundle, wherein the end face of each optical fiber is located at the focal point of each lens. A photovoltaic module, located on the support, includes a photovoltaic panel and an energy storage module, which collects sunlight passing through the lens to provide electrical energy.

[0005] Preferably, the lens is made of polymethyl methacrylate, cyclic olefin copolymer, or cyclic olefin polymer. And / or, the inner diameter of the optical fiber does not exceed 250 micrometers.

[0006] Preferably, the light-collecting module is rotatably connected to the bracket; The device also includes a drive mechanism to drive the light-collecting module to rotate on the bracket.

[0007] Preferably, it further includes: The light-tracking mechanism is used to monitor the sun's position in real time, so that the drive mechanism rotates the light-collecting module according to the sun's position.

[0008] Preferably, it further includes: A control module that communicates with the light-tracking mechanism and the drive mechanism to monitor and control the operation of the drive mechanism and the light-tracking mechanism.

[0009] Preferably, the control module acquires the sun's position monitored by the light-tracking mechanism and autonomously controls the drive mechanism to rotate the light-collecting module.

[0010] Preferably, the energy storage module supplies power to the drive mechanism, the light-tracking mechanism, and the control module.

[0011] Preferably, the control module monitors the real-time power of the energy storage module to dynamically adjust the light-collecting module and / or photovoltaic panel.

[0012] Preferably, the control module is configured to: when the energy storage module's power level is detected to be lower than a threshold, autonomously control the light-collecting module and / or photovoltaic panel to allow sunlight to enter the lens array at a certain angle.

[0013] Preferably, the control module is configured to: autonomously control the light-collecting module and / or photovoltaic panel when the energy storage module's power level is detected to be no lower than a threshold, so that sunlight enters the lens array perpendicularly.

[0014] Compared with existing technologies, the above technical solution has the following advantages: 1. The solar energy collection device provided in this application arranges a photovoltaic panel behind the light-collecting module, so that the photovoltaic panel collects sunlight passing through the lens to generate electricity to charge the storage battery, and the storage battery powers the entire device without the need for an additional power input, thus solving the problem that existing solar energy collection devices require an additional power supply and are inconvenient to use. 2. This solar energy collection device utilizes a control module to control the rotation of the light-collecting module via a light-tracking component and an autonomous drive mechanism, thereby ensuring that the lens always follows the sun, improving collection efficiency. The electrical energy collected by the photovoltaic panel can also be integrated into the output of the light-collecting module to maximize the output of solar energy.

[0015] 3. By using the control module, when the battery power is insufficient, the light-collecting module can be automatically controlled to tilt slightly, so that the sunlight is no longer incident vertically. Most of the light is not collected by the optical fiber but is collected by the photovoltaic panel through the light-collecting module, which improves safety and stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an embodiment of the solar energy collection device described in this utility model; Figure 2 This is a schematic diagram of a structure in an embodiment of the solar energy collection device described in this utility model, showing sunlight passing through a lens array. Figure 3This is a schematic diagram of another structure of the solar energy collection device according to the present invention, showing sunlight passing through a lens array.

[0017] Figure label: 1-Bracket; 2-Light-collecting module; 21-Lens array; 22-Fiber bundle; 3-Photovoltaic panel; 4-Energy storage module; 5-Motor of drive mechanism; 6-Light-tracking mechanism; 7-Control module; 71-Photovoltaic controller; 8-Light-consuming device. Detailed Implementation

[0018] The advantages of this utility model are further illustrated below with reference to the accompanying drawings and specific embodiments.

[0019] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0020] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0021] It should be understood that, depending on the context, the word “if” as used here can be interpreted as “when”, “when”, or “in response to determination”.

[0022] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0024] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrating this invention and has no specific meaning in itself. Therefore, "module" and "part" can be used interchangeably.

[0025] Example: This example provides a solar energy collection device, such as... Figure 1 As shown, it includes: Support 1 can be a regular or irregular support, such as a rectangular support 1, which only needs to provide stable support; The light-collecting module 2 is located on the bracket 1, such as... Figure 1 It includes a lens array 21 and an optical fiber bundle 22, wherein the end face of each optical fiber is located at the focal point of each lens; specifically, the lens array 21 includes at least one column of lenses, which converge sunlight to the end face of the optical fiber through the top of each lens, thereby coupling it into the optical fiber. After the sunlight is propagated through the optical fiber, it is output to the optical device 8, which can be a device / system for converting sunlight into other energies.

[0026] A photovoltaic module, located on the support 1, includes a photovoltaic panel 3 and an energy storage module 4. It collects sunlight passing through the lens to provide electrical energy. The photovoltaic panel 3 can be located on one side of the bottom of the lens. Figure 1 Below the middle lens), the energy storage module 4 is connected to the photovoltaic panel 3 and stores the electrical energy output by the photovoltaic panel 3. The energy storage module 4 can be a battery, capacitor, etc.

[0027] It is understandable that the lens will focus sunlight, but some sunlight will still pass through the lens. In this embodiment, a photovoltaic panel 3 is arranged below the lens array 21 to further collect solar energy. The collected solar energy is collected in the energy storage module 4. The energy storage module 4 can directly provide the sunlight collected by the lens array 21 and convert it into solar energy output, thereby improving the solar energy collection efficiency. It can also be used independently as the power supply for the solar energy collection device, so there is no need to configure a separate battery power supply, reducing the situation of limited use.

[0028] Specifically, each lens in the lens array 21 is a complete lens. It can be understood that in this embodiment, the lens mainly focuses sunlight onto the optical fiber and partially penetrates into the photovoltaic panel 3. Therefore, it is necessary to ensure a certain light transmittance. Based on practical application considerations, the lens is formed by injection molding of transparent material. As a preferred embodiment, the material of the lens is selected from, but not limited to, polymethyl methacrylate (PMMA), cyclic olefin copolymer (COC), cyclic olefin polymer (COP), etc.; further preferably, the inner diameter of the optical fiber does not exceed 250 micrometers.

[0029] Therefore, the light-collecting module 2, composed of lens array 21 and fiber bundle 22, is transparent. During illumination, most sunlight is coupled into the optical fiber, and only a small portion of scattered light is not collected. It passes through lens array 21 and fiber bundle 22, reaches the bottom of the light-collecting module 2, and enters photovoltaic panel 3. Photovoltaic panel 3 can fully utilize the sunlight not collected by light-collecting module 2 to generate electricity. The electrical energy output by photovoltaic panel 3 is stored in a battery, which can then power the entire device / system.

[0030] Understandably, the size of the photovoltaic panel 3 is not less than the projected area of ​​the lens array 21, and can be slightly larger than the projected area of ​​the lens array 21, thereby increasing the area of ​​the photovoltaic panel that collects sunlight and reducing the situation where too little sunlight passes through the lens, resulting in low power of the energy storage module 4.

[0031] For safety reasons, a photovoltaic controller 71 can be connected behind the photovoltaic panel 3. This intelligent power management device, located between the photovoltaic panel 3 and the battery, provides protection. The photovoltaic controller 71 can be integrated into the control module 7 described below, or it can be arranged separately. Alternatively, the photovoltaic module described above can also be directly applied to solar panels. Other devices that can directly realize the conversion of light energy to electrical energy can also replace the application of the photovoltaic panel 3, and this should not be considered a limitation.

[0032] In this embodiment, the solar energy collection device may also include / integrate other modules / units / components / mechanisms to meet the usage requirements in different scenarios.

[0033] In this embodiment, as a preferred implementation, the light-collecting module 2 can also rotate to adjust according to the sun's position, ensuring that sunlight is always projected directly onto the top of the lens, thereby maximizing sunlight collection. Therefore, the device further includes a drive mechanism for driving the light-collecting module 2 to rotate on the support 1. The light-collecting module 2 is rotatably connected to the support 1 and its rotation can be controlled by the drive mechanism. Specifically, the drive mechanism may include a motor 5 and a drive rod acting on the light-collecting module 2. Figure 1The specific structure of the drive mechanism is not shown, but rotation is shown as an illustration (only motor 5 is shown). As a preferred arrangement, rotation in the horizontal direction and / or pitch (within a predetermined angle, such as 270°) can be driven by two motors 5.

[0034] Understandably, the drive mechanism can drive the light-collecting module 2 to rotate at a predetermined time according to predetermined instructions, such as rotating 10° at 8:00. The working parameters of the drive mechanism are set by pre-determining the sun position (such as by carrying a specific program). Alternatively, the rotation of the light-collecting module 2 can be controlled according to instructions issued by the server / terminal, or the rotation of the light-collecting module 2 can be manually controlled.

[0035] The purpose of any of the above rotation methods is to make the lens array 21 follow the sunlight (e.g., Figure 2 (As shown), to improve collection efficiency. Therefore, as a preferred implementation, autonomous control of the drive mechanism can be achieved. Specifically, the device also includes: a light-tracking mechanism 6, used to monitor the sun's position in real time, so that the drive mechanism rotates the light-collecting module 2 according to the sun's position. The light-tracking mechanism 6 can be, for example, a light-tracking sensor, a photosensitive unit, etc. The light-tracking mechanism 6 can be arranged on the bracket 1, or it can be fixed together with the lens array 21 and rotate together with it to track the light.

[0036] As an example, the light-tracking sensor collects signals containing the sun's position, which are then analyzed and processed by the light-tracking control system / equipment (which can be set up separately or integrated into the control module 7 described below). The system then sends instructions to the drive mechanism, enabling the light-tracking control system to precisely control the rotation angle of the lens driven by the motor 5, thereby achieving high-precision light tracking.

[0037] Furthermore, as a preferred embodiment, the aforementioned mechanisms / modules / units can be autonomously controlled. Specifically, the solar energy collection device may also include a control module 7, which communicates with the light-tracking mechanism 6, the drive mechanism, etc., to monitor and control the operation of the drive mechanism and the light-tracking mechanism 6. It is understood that the control module 7 can be mounted on the support 1, or even arranged to rotate together with the lens array 21, or it can be arranged as a remote module to perform autonomous and precise control through communication with the various mechanisms / modules (such as command interaction).

[0038] Specifically, achievable controls include: the control module 7 acquiring the sun's position monitored by the light-tracking mechanism 6 (which can be analyzed by the light-tracking control system (which can be implemented remotely or locally) as mentioned above), and autonomously controlling the drive mechanism to rotate the light-collecting module 2, thereby ensuring that the lens always follows the sunlight and that the sunlight always enters the lens under direct projection, thus improving the efficiency of solar energy collection.

[0039] Based on the above, the energy storage module 4 can optionally directly power the solar energy collection device without needing to connect a separate battery or the like. Therefore, the energy storage module 4 can power the drive mechanism (motor 5), the light-tracking mechanism 6, and the control module 7. Furthermore, the above-mentioned mechanisms / modules are examples, and in practice, other modules / mechanisms / units / structures can be connected / integrated to achieve different functions, such as heat dissipation. If the device also includes other devices / modules that perform other functions, the energy storage module 4 can also provide them with electrical energy.

[0040] As an optional implementation, considering that the energy in the energy storage module 4 comes from the photovoltaic panel 3, but the photovoltaic panel 3 is always located below the lens array 21, the energy of the energy storage module 4 depends on the sunlight passing through the lens. When there is a lot of sunlight focused in the lens, only a small portion of the sunlight is collected by the photovoltaic panel 3, and the energy storage module 4 may not be able to provide enough electricity.

[0041] Therefore, when the energy storage module 4 is low on power, the solar collection module 2 can be rotated to allow more sunlight to reach the photovoltaic panel 3. Thus, the control module 7 can be configured to monitor the real-time power of the energy storage module 4 to dynamically adjust the solar collection module 2.

[0042] The aforementioned dynamic adjustments can be implemented in various ways through the configuration control module 7, specifically, such as... Figure 2 As shown, in one implementation, when the power of the energy storage module 4 is detected to be no less than a threshold (such as 20% of the preset total power), the power is sufficient for the function of the entire device. The control module 7 autonomously controls the drive mechanism to rotate the light collection module 2, so that the sunlight enters the lens array 21 vertically (vertically relative to the lens, forming a positive projection). At this time, most of the sunlight is coupled into the optical fiber, completing the high-efficiency collection of sunlight.

[0043] As another implementation, such as Figure 3 As shown, when the energy storage module 4 is detected to be below a threshold (which can be the same as the threshold mentioned above, or a different threshold can be set separately), the control module 7 autonomously controls the drive mechanism to rotate the light-collecting module 2, so that sunlight enters the lens array 21 at a certain angle (tilted relative to the lens, which can form an oblique projection).

[0044] Furthermore, the photovoltaic panel 3 is located on the support 1 and can be fixed on the support 1 or rotate on the support 1, such as rotating autonomously or rotating synchronously with the light-collecting module 2 (such as being synchronously driven by the aforementioned drive mechanism, or having another drive mechanism separately arranged for the control of the photovoltaic panel). The photovoltaic panel 3 can also be dynamically adjusted when the light-collecting module 2 is dynamically adjusted.

[0045] Therefore, when the energy storage module 4's power is below the threshold, as an optional implementation, the control module 7 can control the solar collection module 2 and the photovoltaic panel 3 to rotate synchronously: keeping the solar collection module 2 and the photovoltaic panel 3 always parallel, and after the solar collection module 2 and the photovoltaic panel 3 rotate synchronously, they simultaneously form a certain tilt angle with the sunlight (the sunlight forms an oblique projection on both the lens and the photovoltaic panel 3), reducing the sunlight focused in the lens, allowing more sunlight to pass through the lens and illuminate the photovoltaic panel 3; as another optional implementation, the control module 7 can control the solar collection module 2 and the photovoltaic panel 3 to rotate relative to each other: specifically, the photovoltaic panel 3 can be fixed on the bracket 1 or kept in its current position on the bracket 1, and the solar collection module 2 can rotate (so that the lens forms a certain angle with the sunlight, reducing the focused sunlight) to allow more sunlight to illuminate the photovoltaic panel 3. At this time, the photovoltaic panel 3 can even be further rotated to follow the sun, so that more sunlight can illuminate the photovoltaic panel 3; or the photovoltaic panel 3 can be controlled to rotate, and the solar collection module 2 can be fixed on the bracket 1 or kept in its current position on the bracket 1, so that as the sun's position changes, more sunlight gradually illuminates the photovoltaic panel 3.

[0046] As an example, such as Figure 3 As shown, the photovoltaic panel 3 remains horizontal on the support 1. Due to the change in the sun's position, the sunlight forms a certain angle with the horizontal position. At this time, the lens array 21 does not rotate to a horizontal position to follow the sun; instead, each lens in the lens array 21 is adjusted to remain horizontal, so that the light-collecting module 2 is no longer directly facing the sun, thus allowing the sunlight to enter at an oblique angle. During oblique incidence, the light rays converged by the lenses deviate from their original focal point, and the sunlight is no longer fully coupled into the optical fiber. Most of the sunlight will reach the photovoltaic panel 3 through the optical fiber (at this point, the photovoltaic panel 3 can be optionally rotated to face the sunlight, further increasing the amount of sunlight entering the photovoltaic panel 3), thereby increasing the light intensity incident on the photovoltaic surface and improving power generation efficiency until the battery has sufficient charge. Optionally, the aforementioned power detection can also be implemented by a solar tracking control system, depending on the actual application scenario. This solar energy collection device can be integrated with or connected to other modules / components / devices / systems for application in different systems or scenarios.

[0047] Based on the above, in the device provided in this embodiment, the photovoltaic panel 3 is placed on the back of the solar collection module 2. By combining the photovoltaic panel 3 on the back with a battery, the problem of additional power supply for the solar energy collection device can be solved. By utilizing the cooperation between the photovoltaic panel 3 and the solar collection module 2, zero energy input can be achieved, and solar energy output can be maximized. No additional power input is required, and users do not need to charge frequently or connect to the grid, making the usage scenarios more flexible.

[0048] It should be noted that the embodiments of this utility model have better implementability and are not intended to limit this utility model in any way. Any person skilled in the art may use the above-disclosed technical content to change or modify it into equivalent effective embodiments. However, any modifications or equivalent changes and modifications made to the above embodiments based on the technical essence of this utility model without departing from the content of the technical solution of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A solar energy collection device, characterized in that, include: support; A light-gathering module, located on the support, includes a lens array and an optical fiber bundle, wherein the end face of each optical fiber is located at the focal point of each lens. A photovoltaic module, located on the support, includes a photovoltaic panel and an energy storage module, which collects sunlight passing through the lens to provide electrical energy.

2. The solar energy collection device according to claim 1, characterized in that: The lens is made of polymethyl methacrylate, cyclic olefin copolymer, or cyclic olefin polymer. And / or, the inner diameter of the optical fiber does not exceed 250 micrometers.

3. The solar energy collection device according to claim 1, characterized in that: The light-collecting module is rotatably connected to the bracket; The device also includes a drive mechanism to drive the light-collecting module to rotate on the bracket.

4. The solar energy collection device according to claim 3, characterized in that, Also includes: The light-tracking mechanism is used to monitor the sun's position in real time, so that the drive mechanism rotates the light-collecting module according to the sun's position.

5. The solar energy collection device according to claim 4, characterized in that: It also includes a control module; The control module communicates with the light-tracking mechanism and the drive mechanism to monitor and control the operation of the drive mechanism and the light-tracking mechanism.

6. The solar energy collection device according to claim 5, characterized in that: The control module acquires the sun's position monitored by the light-tracking mechanism and autonomously controls the drive mechanism to rotate the light-collecting module.

7. The solar energy collection device according to claim 6, characterized in that: The energy storage module supplies power to the drive mechanism, the light-tracking mechanism, and the control module.

8. The solar energy collection device according to claim 7, characterized in that: The control module monitors the real-time power of the energy storage module to dynamically adjust the light-collecting module and / or photovoltaic panel.

9. The solar energy collection device according to claim 8, characterized in that: The control module is configured as follows: When the energy storage module's power level is detected to be below a threshold, the system autonomously controls the light-collecting module and / or photovoltaic panel to allow sunlight to enter the lens array at a certain angle.

10. The solar energy collection device according to claim 8, characterized in that: The control module is configured as follows: When the energy storage module's power level is detected to be no lower than the threshold, the system autonomously controls the light-collecting module and / or photovoltaic panel to allow sunlight to enter the lens array perpendicularly.

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