Solar energy utilization device

Abstract

A solar energy utilization device includes a light energy utilization device (200) and a convex light collecting device (100). The convex light collecting device (100) is filled with a transparent liquid (130). The convex light collecting device (100) has a light-transmitting convex side wall (110) arranged obliquely, and sunlight can be transmitted from the light-transmitting convex side wall (110) to the transparent liquid (130). A first light energy utilization part (210) is arranged at the bottom of the accommodating cavity. Sunlight from the transparent liquid (130) to the light-transmitting convex side wall (110) forms a total reflection phenomenon, which is more convenient for the convex light collecting device (100) to converge sunlight to the first light energy utilization part (210), thereby avoiding the sunlight reflected by the inner wall of the convex light collecting device (100) to the transparent liquid (130) and then refracted from the light-transmitting convex side wall (110), so that more sunlight is converged to the first light energy utilization part (210), and the light collecting efficiency is improved.

Description

Technical Field

[0001] This application relates to a light energy conversion and utilization device. Background Technology

[0002] As the cost of photovoltaic panels decreases and their efficiency increases, solar energy systems are being used more and more widely. However, with the widespread application of solar energy systems, related problems have also emerged, such as increased land costs, power station maintenance costs (including dust cleaning and snow removal), and difficulties in recycling photovoltaic panels. Invention Overview

[0004] Technical issues

[0005] This application provides a novel solar energy utilization device to demonstrate a new solar energy utilization structure.

[0006] Solution to the problem

[0007] Technical solutions

[0008] To achieve the above objectives, one embodiment of this application provides a solar energy utilization device, comprising:

[0009] A light energy utilization device, wherein the light energy utilization device has a first light energy utilization unit capable of receiving and converting sunlight for utilization;

[0010] The device includes a convex focusing device, which is a solid lens or a cavity filled with a transparent liquid. The convex focusing device has an inclined, light-transmitting convex sidewall, through which sunlight can be transmitted to the solid lens or the transparent liquid. The first light energy utilization unit is located at the bottom of the convex focusing device. In the convex focusing device, sunlight incident from the solid lens or the transparent liquid onto the light-transmitting convex sidewall undergoes total internal reflection, converging the sunlight onto the first light energy utilization unit.

[0011] In one embodiment, the convex focusing device has a light-transmitting bottom wall, and the first light energy utilization part is located below the light-transmitting bottom wall.

[0012] In one embodiment, the first light energy utilization part is connected to the light-transmitting convex sidewall and forms the bottom wall of the accommodating cavity.

[0013] In one embodiment, the convex light-concentrating device is provided with a first light guide, which guides sunlight toward the first light energy utilization unit.

[0014] In one embodiment, the first light guide is a Fresnel lens, which is arranged vertically within the convex light-concentrating device.

[0015] In one embodiment, the Fresnel lens is disposed perpendicular to the light-receiving surface opposite to the first light-utilizing section.

[0016] In one embodiment, a second light guide is further included, which is disposed on the outside of the convex light-concentrating device to guide sunlight toward the light-transmitting convex sidewall of the convex light-concentrating device.

[0017] In one embodiment, the second light guide is a reflector disposed on one or both sides of the convex light-concentrating device, with the reflective surface of the reflector facing the convex light-concentrating device.

[0018] In one embodiment, the second light guide is fixedly connected to a convex light-concentrating device or a light energy utilization device, and the second light guide has a hanging ear for mounting the solar energy utilization device.

[0019] In one embodiment, the device further includes a sealed container, in which the light energy utilization device and the convex concentrator are disposed. The sealed container has a light-transmitting surface so that sunlight can enter the convex concentrator from the light-transmitting surface. The sealed container contains a working medium that is in contact with the light energy utilization device.

[0020] In one embodiment, the convex focusing device is connected to the closed container, and the working fluid is the same transparent liquid as that inside the convex focusing device, and the transparent liquid covers the convex focusing device.

[0021] In one embodiment, the convex focusing device is enclosed, and the enclosed container has a first external interface for the working medium to enter and exit the enclosed container to utilize the working medium.

[0022] In one embodiment, a third light guide is further included, the third light guide having a receiving cavity having a reflective sidewall and a reflective bottom wall, the light energy utilization device and the convex light focusing device being disposed in the receiving cavity, the light energy utilization device having a second light energy utilization part opposite to the first light energy utilization part, the second light energy utilization part being disposed facing the reflective bottom wall, the reflective sidewall and the reflective bottom wall reflecting part of the sunlight to the second light energy utilization part.

[0023] In one embodiment, the reflective bottom wall has a W-shaped reflective surface.

[0024] In one embodiment, the third light guide has a light-transmitting top wall, and the light-transmitting top wall, reflective side wall, and reflective bottom wall form a sealed receiving cavity.

[0025] In one embodiment, the device further includes a reflector and a support structure. The convex concentrator and the light energy utilization device are arranged upright or inverted and supported by the support structure. The light energy utilization device has a second light energy utilization part opposite to the first light energy utilization part. The reflector is located below the convex concentrator and the light energy utilization device to reflect sunlight onto the convex concentrator and / or one of the second light energy utilization part and the first light energy utilization part.

[0026] In one embodiment, each light energy utilization device is provided with two convex focusing devices, namely a first convex focusing device and a second convex focusing device. The first convex focusing device is located above the first light energy utilization part, and the second convex focusing device is located below the second light energy utilization part.

[0027] In one embodiment, the reflector is a Fresnel lens reflector or a curved reflector. In another embodiment, the convex focusing device is a liquid lens, and the first convex focusing device and / or the second convex focusing device are provided with a second external interface for the entry and exit of the transparent liquid.

[0028] In one embodiment, a dustproof device is also included, wherein the reflector, support structure, and convex focusing device are disposed in the dustproof device.

[0029] In one embodiment, the longitudinal cross-section of the convex focusing device is a polygon, and the polygon has three or more sides.

[0030] Beneficial effects of the invention

[0031] Beneficial effects

[0032] The solar energy utilization device according to the above embodiment includes a light energy utilization device and a convex concentrator. The convex concentrator is a solid lens or a liquid lens filled with a transparent liquid. The convex concentrator has an inclined, translucent convex sidewall, through which sunlight can be transmitted into the solid lens or the transparent liquid. A first light energy utilization section is located at the bottom of the convex concentrator. Sunlight incident from the solid lens or the transparent liquid onto the translucent convex sidewall undergoes total internal reflection, making it easier for the convex concentrator to focus sunlight onto the first light energy utilization section. This prevents sunlight from being reflected back into the convex concentrator by its inner wall and then refracted again through the translucent convex sidewall, allowing more sunlight to converge onto the first light energy utilization section and improving concentrating efficiency. Total internal reflection also typically improves the angle of incidence of sunlight onto the light energy utilization device, thereby reducing reflection losses.

[0033] Brief description of the accompanying drawings Attached Figure Description

[0034] Figure 1This is a longitudinal cross-sectional schematic diagram of the solar energy utilization device in the first embodiment of this application.

[0035] Figure 2 This is a longitudinal cross-sectional schematic diagram of the solar energy utilization device in the second embodiment of this application.

[0036] Figure 3 This is a longitudinal cross-sectional schematic diagram of the solar energy utilization device in the third embodiment of this application, which can be installed in a flat manner in high-latitude regions.

[0037] Figure 4 This is a longitudinal cross-sectional schematic diagram of the solar energy utilization device in the fourth embodiment of this application, showing a double-sided concentrating structure.

[0038] Figure 5 This is a longitudinal cross-sectional schematic diagram of the solar energy utilization device in the fifth embodiment of this application, showing an array-type double-sided concentrating structure.

[0039] Invention Embodiments

[0040] Embodiments of the present invention

[0041] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings. Similar elements in different embodiments are referred to by associated similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of this application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to this application are not shown or described in the specification. This is to avoid obscuring the core parts of this application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0042] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0043] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0044] The positional relationships such as "above" and "below" in this article are relative and do not have absolute meaning.

[0045] This embodiment provides a solar energy utilization device for receiving and utilizing sunlight to convert sunlight into electrical energy, heat energy, and other forms of energy for people's use.

[0046] The solar energy utilization device shown in this embodiment includes at least one light energy utilization device and at least one convex concentrator.

[0047] The solar energy utilization device has a first solar energy utilization unit capable of receiving and converting sunlight. In one embodiment, the first solar energy utilization unit and other solar energy utilization units (such as the second solar energy utilization unit described below) can be one or more of a photovoltaic panel, a solar thermal utilization device, a photovoltaic and thermal energy integrated utilization device, or a concentrating solar energy utilization device. The photovoltaic panel refers to any device that directly converts light energy into electrical energy, including various semiconductor photovoltaic panels, photovoltaic thin films, quantum dot photoelectric conversion devices, etc. In other embodiments, the first solar energy utilization unit can also be other forms of solar energy utilization and conversion structures.

[0048] The convex concentrator has a solid lens or an internal cavity filled with a transparent liquid. It features an inclined, translucent convex sidewall through which sunlight can be transmitted. This convex concentrator with its inclined translucent sidewall can accommodate incident light with larger deflection angles, addressing both the north-south and east-west deflections of sunlight. In one embodiment, the translucent convex sidewall can be composed of a plane, a folded surface, a curved surface, or a combination of these.

[0049] The first light energy utilization unit is located at the bottom of the convex light-concentrating device. In the convex light-concentrating device, sunlight incident from the solid lens or transparent liquid onto the light-transmitting convex sidewall undergoes total internal reflection, converging the sunlight onto the first light energy utilization unit. Specifically, the structure of the convex light-concentrating device is such that sunlight incident from the transparent material onto the light-transmitting convex sidewall undergoes total internal reflection (or total internal reflection). That is, sunlight reflected into the transparent material does not, or mostly does not, escape from the light-transmitting convex sidewall, but continues to propagate within the convex light-concentrating device under the action of total internal reflection, and ultimately converges onto the first light energy utilization unit.

[0050] In this embodiment, the translucent convex sidewall serves both to transmit light and to perform total internal reflection. Compared with the prior art, under the same conditions, this convex concentrating device can gather more sunlight onto the first light energy utilization unit, increasing the concentration ratio. Simultaneously, the incident angle of the totally internalized light is improved relative to the light energy utilization device; therefore, the reflection loss of the light energy utilization device is reduced, and the light energy utilization efficiency is improved.

[0051] Furthermore, this convex concentrator gathers all or most of the transmitted sunlight onto the light energy utilization device. To receive this sunlight, the light energy utilization device can be located outside the convex concentrator, with a first light energy utilization section attached to it, so that the sunlight within the convex concentrator can be focused onto the first light energy utilization section. Alternatively, the first light energy utilization section can be directly disposed within the receiving cavity, or it can form part of the cavity wall of the concentrating tank.

[0052] Specifically, in one embodiment, the convex concentrator has a light-transmitting bottom wall, and a first light-energy-utilizing part is attached to the outer side of the light-transmitting bottom wall, for example, the first light-energy-utilizing part is fixedly connected to the outer side of the convex concentrator. In the convex concentrator, sunlight converges towards the first light-energy-utilizing part and enters the first light-energy-utilizing part.

[0053] In another embodiment, the convex focusing device is a liquid lens, and the light energy utilization device can be directly immersed in a transparent liquid. The first light energy utilization part can directly receive sunlight transmitted from the transparent liquid.

[0054] In another embodiment, the first light energy utilization part is part of a convex light-concentrating device, and the outer wall of the first light energy utilization part (the side surface for receiving sunlight) is directly or indirectly connected to the light-transmitting convex side wall and forms the bottom wall of the accommodating cavity.

[0055] The convex focusing device is partially or completely filled with a transparent liquid. Preferably, in one embodiment, the transparent liquid substantially fills the entire accommodating cavity to achieve better results.

[0056] When utilizing this convex focusing device, one or more convex focusing devices can be used for focusing. Correspondingly, the light energy utilization device can have one or more first light energy utilization sections, or it can provide one or more light energy utilization devices for combined use with the convex focusing device. Alternatively, the light energy utilization device can be a light energy utilization device with a built-in focusing unit. For example, the light energy utilization device may have a first light energy utilization section on one side, or the light energy utilization device may have a first light energy utilization section on both sides.

[0057] In one embodiment, the convex focusing device uses a solid lens made of transparent glass or plastic, or uses a transparent cavity made of transparent glass or plastic, and places a transparent liquid inside the cavity. The transparent liquid can be pure water, antifreeze liquid (a mixture of water and ethylene glycol), or other environmentally friendly transparent liquids (such as a mixture of water and glycerin).

[0058] In addition, the transparent liquid can directly or indirectly form a heat transfer structure with the first light energy utilization unit, thereby cooling or absorbing heat from the first light energy utilization unit and improving the light energy utilization rate.

[0059] Based on the above inventive concept, the following describes several different embodiments to better demonstrate the invention of this application.

[0060] Example 1:

[0061] Please refer to Figure 1 The solar energy utilization device disclosed in this embodiment includes a convex concentrator 100 and a light energy utilization device 200. The convex concentrator 100 is a closed structure, forming a closed accommodating cavity filled with a transparent liquid 130. The accommodating cavity has a light-transmitting convex sidewall 110 and a light-transmitting bottom wall 120. The light energy utilization device 200 has a first light energy utilization part 210 capable of receiving and converting sunlight (the first light energy utilization part 210 is in close contact with the light-transmitting bottom wall 120 in the figure, so it is labeled together). The first light energy utilization part 210 is located outside the light-transmitting bottom wall 120 and is in close contact with the light-transmitting bottom wall 120.

[0062] Of course, in other embodiments, the first light energy utilization part 210 of the light energy utilization device 200 can serve as the bottom wall of the convex light-concentrating device 100, so that the light energy utilization device 200 and the convex light-concentrating device 100 form an integral structure.

[0063] Figure 1 The process of incident light L being totally reflected by the translucent convex sidewall 110 into the light energy utilization device 200 is shown. This is one of the main differences between this application and other focusing devices, namely, fully utilizing the total internal reflection function of the transparent liquid 130 in the convex focusing device 100 to achieve the focusing function. At the same time, the transparent liquid 130 can also be used to cool or absorb heat from the light energy utilization device 200, thereby improving the light energy utilization efficiency of the light energy utilization device 200. In other words, the translucent convex sidewall 110 has two functions: first, it transmits incident light from the outside through one surface, and then it totally reflects light from the transparent liquid 130 through another surface.

[0064] Please refer to Figure 1 In this embodiment, the longitudinal (vertical direction is considered longitudinal, the same below) cross-section of the convex focusing device 100 is a triangular folded surface. In other embodiments, the cavity wall of the convex focusing device 100 may also be a curved surface or a folded surface of other shapes, such as a folded surface with a quadrilateral or pentagonal cross-section. The longitudinal cross-section of the convex focusing device 100 may also be other shapes that are convex upwards.

[0065] Please continue to refer to this. Figure 1In this embodiment, the convex focusing device 100 has a symmetrical structure along the center line C of the light energy utilization device 200, and the light energy utilization device 200 is located at the center of the light-transmitting bottom wall 120 of the convex focusing device 100. In other embodiments, the convex focusing device 100 can be an asymmetrical structure. In other embodiments, the light energy utilization device 200 can also be located off to one side of the light-transmitting bottom wall 120, and does not necessarily have to be located at the center of the light-transmitting bottom wall 120.

[0066] Please continue to refer to this. Figure 1 In this embodiment, the size of the light-transmitting bottom wall 120 is the same as the size of the light-receiving surface (the side that receives sunlight) of the first light energy utilization part 210. In other embodiments, the light-transmitting bottom wall 120 may be larger or smaller than the light-receiving surface area of ​​the first light energy utilization part 210.

[0067] Please continue to refer to this. Figure 1 In this embodiment, the light-transmitting convex sidewall 110 has a symmetrical structure (along the center line C of the light energy utilization device 200), while in other embodiments, the light-transmitting convex sidewall 110 can be an asymmetrical structure.

[0068] Example 2:

[0069] Please refer to Figure 2 The solar energy utilization device disclosed in this embodiment includes a convex concentrator 100 and a solar energy utilization device 200.

[0070] One difference between the solar energy utilization device shown in this embodiment and that in Embodiment 1 is that the convex concentrator 100 is provided with a first light guide 140, which guides sunlight to the first light energy utilization unit 210. The guiding method can be refraction or reflection.

[0071] Please refer to Figure 2 In this embodiment, the first light guide 140 is a Fresnel lens that is substantially perpendicular to the light-transmitting bottom wall 120 and deflects the incident light toward the light-transmitting bottom wall 120. In one embodiment, the Fresnel lens may be a linear Fresnel lens, a double-sided Fresnel lens, or a double-sided linear Fresnel lens.

[0072] The vertically positioned Fresnel lens will greatly enhance the light deflection capability of the convex focusing device 100 in this embodiment, thereby adapting to the east-west deflection of the sun and saving on the solar tracking system.

[0073] In addition, in other embodiments, the first light guide 140 may also be a reflective element (e.g., a reflective Fresnel lens). The first light guide 140 may also be disposed at other angles within the convex light focusing device 100, such as being tilted at a certain angle relative to the vertical direction.

[0074] On the other hand, please continue to refer to Figure 2 Another difference between the solar energy utilization device shown in this embodiment and the first embodiment is that the solar energy utilization device further includes a second light guide 300. The second light guide 300 is disposed on the outside of the convex light concentrator 100 and is used to guide sunlight to the light-transmitting convex sidewall 110 of the convex light concentrator 100.

[0075] Please continue to refer to this. Figure 2 In this embodiment, the second light guide 300 is a reflector disposed on one or both sides of the convex light-concentrating device 100, with the reflective surface of the reflector facing the convex light-concentrating device 100, thereby reflecting sunlight to the convex light-concentrating device 100. Figure 2 In this structure, the two second light guides 300 form an opening structure that is larger at the top and smaller at the bottom, so that more sunlight can shine into the opening structure from the opening, thereby collecting more sunlight.

[0076] In other embodiments, the guiding method can be either reflection or transmission.

[0077] Further, please refer to Figure 2 In this embodiment, the second light guide 300 is fixedly connected to the convex light concentrator 100 or the light energy utilization device. The second light guide 300 has a hanging ear 310 for mounting the solar energy utilization device. For example, the entire solar energy utilization device can be hung on other objects or another solar energy utilization device by hanging the hanging ear 310.

[0078] Example 3:

[0079] Please refer to Figure 3 The solar energy utilization device disclosed in this embodiment includes a convex concentrator 100 and a light energy utilization device 200. Furthermore, the solar energy utilization device also includes a sealed container 500, within which the convex concentrator 100 and the light energy utilization device 200 are disposed. The sealed container 500 simultaneously provides protection for both the convex concentrator 100 and the light energy utilization device 200, such as dustproofing and waterproofing. The sealed container 500 has a light-transmitting surface 530 made of a light-transmitting material, allowing sunlight to enter the convex concentrator 100 through the light-transmitting surface 530. The light-transmitting surface 530 may be the top surface of the sealed container 500, or one or more surfaces of the sealed container 500. A working fluid 510 is disposed inside the sealed container 500, which is in contact with the light energy utilization device 200, enabling it to dissipate heat and cool the light energy utilization device 200, and utilizing this heat.

[0080] In one embodiment, the convex focusing device 100 is a cavity filled with a transparent liquid, which communicates with a closed container 500, for example, from the bottom or side of the convex focusing device 100. The working fluid 510 is the same transparent liquid 130 as that inside the convex focusing device 100, so that the transparent liquid 130 can flow between the cavity of the closed container 500 and the convex focusing device 100. In one embodiment, the transparent liquid 130 can cover the convex focusing device 100, with its liquid level higher than the convex focusing device 100, so that the convex focusing device 100 can be filled with the transparent liquid 130, and also prevents the liquid level inside the convex focusing device 100 from decreasing.

[0081] In another embodiment, the convex focusing device 100 is a solid-state lens. In this case, the sealed container 500 can store a working fluid 510, such as air, water, or other liquid. Simultaneously, the sealed container 500 can have a first external interface 520 for connection to an external pipeline, allowing the working fluid 510 to enter and exit the sealed container 500 for other applications, such as achieving heat circulation with the outside to provide hot water while generating electricity.

[0082] Further, please refer to Figure 3 This embodiment illustrates a method for addressing the directional shift of sunlight by using a convex focusing device 100 and a light-transmitting convex sidewall 110 with an asymmetrical structure relative to the centerline C of the light energy utilization device 200. This embodiment can be installed in a flat manner in high-latitude regions.

[0083] Of course, the convex focusing device 100 or the light-transmitting convex sidewall 110 can also be designed to be symmetrical about the center line C of the light energy utilization device 200.

[0084] Further, please refer to Figure 2 The convex light-concentrating device 100 may also include a first light guide 140, which guides sunlight to the first light energy utilization unit 210. The guiding method can be refraction or reflection.

[0085] Further, please refer to Figure 3 The solar energy utilization device also includes a second light guide 300. The second light guide 300 is disposed on the outside of the convex light concentrator 100 and located inside the enclosed container 500, and is used to guide sunlight to the light-transmitting convex sidewall 110 of the convex light concentrator 100.

[0086] Example 4:

[0087] Please refer to Figure 4The solar energy utilization device disclosed in this embodiment includes a convex concentrator 100 and a light energy utilization device 200. Furthermore, the solar energy utilization device also includes a third light guide 600. The third light guide 600 has a receiving cavity. The receiving cavity has a reflective sidewall 610 and a reflective bottom wall 620, and the convex concentrator 100 and the light energy utilization device 200 are disposed within the receiving cavity. The light energy utilization device 200 has a second light energy utilization section 220 opposite to the first light energy utilization section 210, and the second light energy utilization section 220 is disposed facing the reflective bottom wall 620. The reflective sidewall 610 and the reflective bottom wall 620 reflect a portion of sunlight to the second light energy utilization section 220. The reflective sidewall 610 and the reflective bottom wall can be made of various reflective materials and structures, such as a mirror or a reflective Fresnel lens surface.

[0088] Please refer to Figure 4 In one embodiment, the first light-utilizing part 210 of the light-utilizing device 200 is arranged facing upwards, and the second light-utilizing part 220 is arranged facing downwards. The reflective sidewall 610 can reflect a portion of sunlight to the convex focusing device 100. Some sunlight will enter below the second light-utilizing part 220 and be reflected onto the second light-utilizing part 220 by the reflective sidewall 610 and the reflective bottom wall 620.

[0089] Please continue to refer to this. Figure 4 To better reflect sunlight onto the second light-utilizing unit 220, in one embodiment, the reflective base wall 620 has a W-shaped reflective surface. Of course, the reflective base wall 620 can also be other shapes, such as V-shaped or U-shaped. In this embodiment, the reflective base wall 620 is a simple W-shaped reflective surface. In other embodiments, this W-shaped reflective surface can be replaced by a reflective Fresnel lens surface.

[0090] In another embodiment, please refer to Figure 4 The third light guide 600 has a light-transmitting top wall 630, and the light-transmitting top wall 630, the reflective side wall 610 and the reflective bottom wall 620 form a sealed receiving cavity, so that the third light guide 600 can protect the convex light-concentrating device 100 and the light energy utilization device 200, such as dustproof and waterproof.

[0091] Furthermore, the area of ​​the translucent bottom wall 120 can be the same as or different from the area of ​​the light-receiving surface of the first light-utilizing part 210. Please refer to [reference needed]. Figure 4 The area of ​​the translucent bottom wall 120 is larger than the area of ​​the light-receiving surface of the second light energy utilization section 220. Sunlight that enters this part from the transparent liquid 130 can enter the space below the second light energy utilization section 220 and be reflected by the reflective bottom wall 620 to the second light energy utilization section 220, thereby increasing the amount of sunlight entering the second light energy utilization section 220.

[0092] The solar energy utilization device shown in this embodiment has two light energy utilization sections 210 and 220 and a third light guide 600, which can further improve the light concentration efficiency and also help to improve the compactness and small size of the solar energy utilization device.

[0093] Example 5:

[0094] Please refer to Figure 5 The solar energy utilization device disclosed in this embodiment includes a convex concentrator 100 and a light energy utilization device 200. Furthermore, the solar energy utilization device also includes a reflector 800 and a support structure 900.

[0095] There are two convex focusing devices 100, namely a first convex focusing device 101 and a second convex focusing device 102. The light energy utilization device 200 has a second light energy utilization section 220 opposite to the first light energy utilization section 210. The first convex focusing device 101 is located above the first light energy utilization section 210, and the second convex focusing device 102 is located below the second light energy utilization section 220. The first convex focusing device 101, the second convex focusing device 102, and the light energy utilization device 200 are mounted on the support structure 900. The reflector 800 is located below the second convex focusing device 102 and the light energy utilization device 200 to reflect sunlight onto the second convex focusing device 102 and / or the second light energy utilization section 220. In this embodiment, the second convex focusing device 102 is a liquid lens, in which a transparent liquid 130 is disposed. The reflector 800 can be made of various structures that can reflect sunlight, such as a U-shaped reflector or a reflective Fresnel lens.

[0096] For details, please refer to Figure 5 This embodiment shows an array structure. Figure 5 The L in the middle represents sunlight. Figure 5 The diagram illustrates the process by which the bottom reflector 800 reflects sunlight to the second convex concentrator 102, where total internal reflection also occurs within the second convex concentrator 102. Sunlight entering the transparent liquid 130 within the second convex concentrator 102 from its translucent convex sidewall 110 is also totally reflected upon impact with the sidewall, ultimately converging onto the second light-utilizing unit 220. This second light-utilizing unit 220 can also be located outside the translucent bottom wall 120 of the second convex concentrator 102, or it can serve as the bottom wall of the second convex concentrator 102, forming an integral structure with it.

[0097] Please refer to Figure 5In one embodiment, the first convex focusing device 101 and / or the second convex focusing device 102 are provided with a second external interface 103, which can be connected to an external pipe for the transparent liquid 130 to enter and exit, thereby applying the transparent liquid 130, such as exchanging heat with an external heat circulation system, and making full use of the heat energy obtained by the transparent liquid 130.

[0098] The reflector can also be used in conjunction with a single convex focusing device. Please refer to [reference needed]. Figure 5 In one embodiment, the second convex focusing device 102 can be omitted, and the first convex focusing device 101 is only provided on the light energy utilization device 200 having the first light energy utilization section 210 and the second light energy utilization section 220. This situation (where the convex focusing device 101 is provided on the light energy utilization device 200) is called an upright configuration. In another embodiment, the first convex focusing device 101 can be omitted, and the second convex focusing device 102 is only provided below the light energy utilization device 200 having the first light energy utilization section 210 and the second light energy utilization section 220. This situation (where the light energy utilization device 200 is provided on the convex focusing device 102) is called an inverted configuration. The case where there are convex focusing devices 101 and 102 on both sides of the light energy utilization device 200 is called a bilateral configuration. Figure 5 This displays the settings for both sides.

[0099] Further, please refer to Figure 5 In one embodiment, a dustproof device 1000 (such as a dust cover) is also included, in which a reflector 800, a support structure 900 and a convex focusing device 100 are disposed to facilitate the cleaning of dust.

[0100] Furthermore, in one embodiment, please refer to Figure 5 The convex focusing device 100 and the light energy utilization device 200 can be in two or more sets for group use. Different sets of convex focusing devices 100 and light energy utilization devices 200 can share a reflector 800 and a dustproof device 1000, or they can have separate reflectors 800 and dustproof devices 1000.

[0101] The above examples illustrate this application only to aid in understanding and are not intended to limit the scope of the application. Those skilled in the art can make variations to the specific embodiments described above based on the principles of this application.

Claims

1. A solar energy utilization device, characterized in that, include: A light energy utilization device, wherein the light energy utilization device has a first light energy utilization unit capable of receiving and converting sunlight for utilization; And a convex focusing device, wherein the convex focusing device is a cavity filled with transparent liquid, the longitudinal section of the convex focusing device is a triangular fold, the convex focusing device has an inclined light-transmitting convex sidewall, and the sunlight can be transmitted from the light-transmitting convex sidewall into the transparent liquid; the first light energy utilization part is attached to the bottom of the convex focusing device, and the sunlight shining from the transparent liquid toward the light-transmitting convex sidewall in the convex focusing device forms a total internal reflection phenomenon, converging the sunlight onto the first light energy utilization part; It also includes a third light guide, which has a receiving cavity with a reflective sidewall and a reflective bottom wall. The light energy utilization device and the convex light focusing device are disposed in the receiving cavity. The light energy utilization device has a second light energy utilization part that is opposite to the first light energy utilization part. The second light energy utilization part is disposed facing the reflective bottom wall. The reflective sidewall and the reflective bottom wall reflect part of the sunlight to the second light energy utilization part.

2. The solar energy utilization device as described in claim 1, characterized in that, The convex focusing device has a light-transmitting bottom wall, and the first light energy utilization part is attached to the lower part of the light-transmitting bottom wall; or... The first light energy utilization section forms the bottom wall of the convex light-concentrating device.

3. The solar energy utilization device as described in claim 1, characterized in that, The convex focusing device is equipped with a first light guide. The first light guide is a Fresnel lens. The Fresnel lens is positioned perpendicular to the light-receiving surface of the first light-utilizing section.

4. The solar energy utilization device according to any one of claims 1 to 3, characterized in that, It also includes a second light guide, which is disposed on the outside of the convex light-concentrating device to guide sunlight toward the light-transmitting convex sidewall of the convex light-concentrating device. The second light guide is a reflector disposed on one or both sides of the convex light-concentrating device, with the reflective surface of the reflector facing the convex light-concentrating device.

5. The solar energy utilization device as described in claim 4, characterized in that, The second light guide is fixedly connected to the convex light-concentrating device or the light energy utilization device. The second light guide has a hanging ear for mounting the solar energy utilization device.

6. The solar energy utilization device according to any one of claims 1 to 3, characterized in that, It also includes a closed container, in which the light energy utilization device and the convex concentrator are disposed. The closed container has a light-transmitting surface so that sunlight can enter the convex concentrator from the light-transmitting surface. The closed container contains a working medium that is in contact with the light energy utilization device.

7. The solar energy utilization device as described in claim 6, characterized in that, The convex focusing device is connected to the closed container, and the working fluid is the same transparent liquid as that inside the convex focusing device, and the transparent liquid covers the convex focusing device.

8. The solar energy utilization device as described in claim 6, characterized in that, The convex focusing device is enclosed, and the enclosed container has a first external interface for the working medium to enter and exit the enclosed container to utilize the working medium.

9. The solar energy utilization device as described in claim 1, characterized in that, The reflective bottom wall has a W-shaped reflective surface.

10. The solar energy utilization device as described in claim 1, characterized in that, The third light guide has a light-transmitting top wall, and the light-transmitting top wall, reflective side wall, and reflective bottom wall form a sealed receiving cavity.

11. The solar energy utilization device according to any one of claims 1 to 3, characterized in that, It also includes a reflector and a support structure. The convex focusing device and the light energy utilization device are arranged upright or inverted and supported by the support structure. The light energy utilization device has a second light energy utilization part opposite to the first light energy utilization part. The reflector is located below the convex focusing device and the light energy utilization device to reflect sunlight onto the convex focusing device and / or one of the second light energy utilization part and the first light energy utilization part. The reflector is a Fresnel lens reflector or a curved reflector.

12. The solar energy utilization device as described in claim 11, characterized in that, Each light energy utilization device is provided with two convex focusing devices, namely a first convex focusing device and a second convex focusing device. The first convex focusing device is located above the first light energy utilization part, and the second convex focusing device is located below the second light energy utilization part.

13. The solar energy utilization device as described in claim 12, characterized in that, The first convex focusing device and / or the second convex focusing device are provided with a second external interface for the entry and exit of the transparent liquid.

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