Solar energy utilization equipment

Abstract

The solar energy utilization device of the present invention includes a light energy utilization device and a convex collector. The convex collector is filled with a transparent liquid. The convex collector has a light-transmitting convex side wall arranged at an angle, and can transmit sunlight from the light-transmitting convex side wall into the transparent liquid. The first light energy utilization part is arranged at the bottom of the accommodation cavity, and sunlight incident on the light-transmitting convex side wall from the transparent liquid undergoes a total reflection phenomenon, making it easier for the convex collector to concentrate sunlight on the first light energy utilization part. This prevents the sunlight from being reflected by the transparent liquid at the inner wall of the convex collector and then refracted from the light-transmitting convex side wall, and more sunlight is concentrated on the first light energy utilization part, improving the light concentration efficiency.

Description

[Technical field]

[0001] The present invention relates to a light energy conversion and utilization device. [Background technology]

[0002] With the reduction in cost and the increase in efficiency of solar power generation panels, the application of solar power generation systems is increasing. However, as the solar power generation systems are widely used, related problems arise, such as the increase in land cost, the cost of power plant maintenance (including cleaning dust and removing snow), and the difficulty of recovering solar power generation panels. Summary of the Invention [Problem to be solved by the invention]

[0003] SUMMARY OF THE PRESENT EMBODIMENTS The main object of the present invention is to provide a novel solar energy utilization device exhibiting a novel solar energy utilization structure. [Means for solving the problem]

[0004] Based on the above object, one embodiment of the present invention provides a solar energy utilization device, the solar energy utilization device comprising: The light energy utilization device includes a first light energy utilization section that receives sunlight and converts and utilizes the received sunlight. The convex light collector can be a solid lens or a containing cavity filled with a transparent liquid. The convex light collecting device is With respect to the center line of the light energy utilization device Inclined Convex The convex light collecting device has a light-transmitting convex sidewall disposed thereon. The sunlight can be transmitted from the light-transmitting convex sidewall to the solid lens or transparent liquid. The first light energy utilization unit is provided at the bottom of the convex light collecting device. In the convex light collecting device, sunlight incident from the solid lens or transparent liquid toward the light-transmitting convex sidewall creates a total reflection phenomenon, and the sunlight is concentrated toward the first light energy utilization unit.

[0005] In one embodiment, the convex light collecting device has a light-transmitting bottom wall, and the first light energy utilizing part is located below the light-transmitting bottom wall.

[0006] In one embodiment, the first light energy utilization unit is convex side It is connected to the wall and forms the bottom wall of the receiving cavity.

[0007] In one embodiment, a first light-guiding member is provided in the convex light-collecting device, and the first light-guiding member guides sunlight toward the first light energy utilization unit.

[0008] In one embodiment, the first light-guiding member is a Fresnel lens, and the Fresnel lens is vertically disposed within the convex light-collecting device.

[0009] In one embodiment, the Fresnel lens is disposed perpendicular to the light receiving surface of the first light energy utilization unit.

[0010] In one embodiment, a light collector is disposed outside the convex concentrator, and the light collector is arranged to transmit sunlight through the light transmitting portion of the convex concentrator. convex side It further includes a second light-guiding member for guiding the light toward the wall.

[0011] In one embodiment, the second light-guiding member is a reflective member disposed on one or both sides of the convex light-collecting device, and a reflective surface of the reflective member faces the convex light-collecting device.

[0012] In one embodiment, the second light-guiding member is fixedly connected to a convex light-concentrating device or a light energy utilization device, and the second light-guiding member has a hook tab for mounting the solar energy utilization device.

[0013] In one embodiment, the device further includes a sealed container, the light energy utilization device and the convex collector are disposed in the sealed container, the sealed container has a light transmitting surface, and the sunlight can be incident on the convex collector from the light transmitting surface, a working substance is provided in the sealed container, and the working substance is brought into contact with the light energy utilization device.

[0014] In one embodiment, the convex collector is in communication with the sealed container, the working substance is the same as the transparent liquid in the convex collector, and the transparent liquid covers the convex collector.

[0015] In one embodiment, the convex light collecting device is arranged in a sealed container, and the sealed container has a first external interface for the working substance to enter and exit the sealed container for utilizing the working substance.

[0016] In one embodiment, the light guiding device further includes a third light guiding member. The third light guiding member has a receiving cavity. The receiving cavity has a light reflective side wall and a light reflective bottom wall. The light energy utilization device and the convex light collecting device are disposed in the receiving cavity. The light energy utilization device has a second light energy utilization unit disposed in an opposite direction to the first light energy utilization unit. The second light energy utilization unit is disposed opposite to the light reflective bottom wall. The light reflective side wall and the light reflective bottom wall reflect a portion of the sunlight to the second light energy utilization unit.

[0017] In one embodiment, the light reflective bottom wall has a W-shaped reflective surface.

[0018] In one embodiment, the third light-guiding member has a light-transmitting top wall, the light-transmitting top wall, the light-reflective side walls and the light-reflective bottom wall enclose a sealed receiving cavity.

[0019] In one embodiment, the light source further includes a reflecting member and a supporting structure. The convex light collecting device and the light energy utilizing device are arranged upright or inverted, and the supporting structure ToThe light energy utilization device has a second light energy utilization unit disposed in a direction opposite to the first light energy utilization unit. The reflecting member is located below the convex light collecting device and the light energy utilization device, and reflects sunlight to the convex light collecting device and / or one of the second light energy utilization unit and the first light energy utilization unit.

[0020] In one embodiment, two convex condensing devices are provided corresponding to each light energy utilization device. The two convex condensing devices are a first convex condensing device and a second convex condensing device, respectively. The first convex condensing device is located above the first light energy utilization unit. The second convex condensing device is located below the second light energy utilization unit.

[0021] In one embodiment, the reflecting member is a Fresnel lens reflecting surface or a curved reflecting mirror. In one embodiment, the convex focusing device is a liquid lens. The first convex focusing device and / or the second convex focusing device are provided with a second external interface for the transparent liquid to enter and exit.

[0022] In one embodiment, the optical fiber further comprises a dust-proof device, in which the reflecting member, the support structure and the convex light-collecting device are disposed.

[0023] In one embodiment, the longitudinal cross section of the convex concentrator is polygonal, and the number of sides of the polygon is three or more. Effect of the Invention

[0024] The solar energy utilization device according to the above embodiment includes a light energy utilization device and a convex light collecting device. The convex light collecting device is a solid lens or a liquid lens filled with a transparent liquid. The convex light collecting device is a light-transmitting lens arranged at an angle. convex side Has walls and is light-transmitting convex side The first light energy utilization unit is provided at the bottom of the convex light collecting device, and the light is transmitted from the solid lens or the transparent liquid to the light transmitting unit. convex sideThe sunlight irradiated toward the wall forms a total reflection phenomenon, which makes it easier for the convex concentrator to concentrate the sunlight on the first light energy utilization part. After the sunlight is reflected by the inner wall of the convex concentrator, the light transmittance is increased. convex side The total reflection can avoid refraction from the wall, and can concentrate more sunlight on the first light energy utilization unit, improving the light concentration efficiency. Total reflection usually improves the angle of incidence of sunlight on the light energy utilization device, and reduces reflection losses. [Brief description of the drawings]

[0025] [Figure 1] 1 is a vertical cross-sectional view of a solar energy utilization device according to a first embodiment of the present invention. [Diagram 2] FIG. 4 is a vertical cross-sectional view of a solar energy utilization device according to a second embodiment of the present invention. [Diagram 3] FIG. 11 is a vertical cross-sectional view of a solar energy utilization device according to a third embodiment of the present invention, which can be installed lying down in high latitude regions. [Figure 4] FIG. 11 is a vertical cross-sectional view of a solar energy utilization device according to a fourth embodiment of the present invention, showing a double-sided light collecting structure. [Diagram 5] FIG. 13 is a vertical cross-sectional view of a solar energy utilization device according to a fifth embodiment of the present invention, showing an array-type double-sided light collecting structure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] The present invention will be described in more detail below with reference to the drawings through specific embodiments. Similar elements in different embodiments use related similar element numbers. In the following embodiments, many details are described to allow the present invention to be better understood. However, those skilled in the art can easily recognize that some features may be omitted or replaced by other elements, materials, and methods in various situations. In some cases, some operations related to the present invention are not shown or described in the specification, in order to avoid the core part of the present invention being buried in excessive description, and those skilled in the art do not need to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the field.

[0027] Moreover, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method descriptions may be reordered or adjusted in a manner apparent to one of ordinary skill in the art. Thus, the various orders in the specification and accompanying figures are merely for purposes of clarifying particular examples, and are not intended to imply a required order unless expressly stated that a particular order must be followed.

[0028] In this specification, the numbers themselves attached to components, such as "first", "second", etc., are used only to distinguish the objects described and do not have any order or technical meaning. In addition, "connection" and "coupling" in the present invention include direct and indirect connection (coupling) unless otherwise specified.

[0029] In this specification, positional relationships such as up and down are all relative and do not have an absolute meaning.

[0030] This embodiment provides a solar energy utilization device, which receives and utilizes sunlight to perform energy conversion, and converts the sunlight into electrical energy, thermal energy and other forms of energy for people to use.

[0031] The solar energy utilization device shown in this embodiment includes at least one light energy utilization device and at least one convex concentrating device.

[0032] The light energy utilization device includes a first light energy utilization unit that can receive sunlight and convert and utilize it. In one embodiment, the first light energy utilization unit and other light energy utilization units (such as a second light energy utilization unit described later) may be one or more of a photovoltaic power generation panel, a light heat utilization device, a photovoltaic and thermal energy integrated utilization device, and a light-concentrating light energy utilization device. The photovoltaic power generation panel generally refers to any device that directly converts light energy into electrical energy, and includes various semiconductor photovoltaic power generation panels, photovoltaic thin films, quantum dot photoelectric conversion devices, etc. In other embodiments, the first light energy utilization unit may also be another type of solar energy utilization conversion structure.

[0033] The convex light collecting device has a solid lens or a receiving cavity filled with a transparent liquid. convex side Has walls and is light-transmitting convex side Sunlight can be transmitted from the wall into the convex concentrator. convex side The convex concentrator with a wall can accommodate incident light with a larger deflection angle, and can accommodate not only north-south return deflection of sunlight but also east-west deflection of sunlight. convex side The walls may be formed with flat surfaces, angled surfaces, curved surfaces, or a combination of these surfaces.

[0034] The first light energy utilization unit is provided at the bottom of the convex light collecting device. convex side The sunlight incident on the wall forms a total reflection phenomenon, and the sunlight is concentrated on the first light energy utilization part. Here, the structure of the convex light concentrating device is a transparent liquid to a light-transmitting liquid. convex side The sunlight incident on the wall forms a phenomenon called total internal reflection (total reflection). That is, the sunlight reflected by the transparent liquid is transparent to the light. convex sideThe light does not exit the wall, or most of it does not exit, but continues to propagate within the convex light collecting device by total reflection, and is finally collected at the first light energy utilization section.

[0035] In this embodiment, the light transmittance convex side The wall has both light transmission and total reflection properties. Compared with the prior art, the convex concentrator can concentrate more sunlight to the first light energy utilization section under the same conditions, and can increase the concentration ratio. In addition, the incident angle of the light that is totally reflected to the light energy utilization device is improved. This reduces the reflection loss of the light energy utilization device, and improves the utilization efficiency of light energy.

[0036] Furthermore, the convex light collecting device collects all or most of the sunlight that has passed through it onto the light energy utilization device. To receive this sunlight, the light energy utilization device may be positioned outside the convex light collecting device, and a first light energy utilization part may be attached to the convex light collecting device so that the sunlight in the convex light collecting device is collected onto the first light energy utilization part. Alternatively, the first light energy utilization part may be directly installed in the receiving cavity, or the first light energy utilization part may form a part of the cavity wall of the light collecting groove body.

[0037] Specifically, in one embodiment, the convex light collecting device has a light-transmitting bottom wall. The first light energy utilization unit is attached to the outside of the light-transmitting bottom wall, for example, the first light energy utilization unit is fixedly connected to the outside of the convex light collecting device. In the convex light collecting device, the sunlight is concentrated on the first light energy utilization unit and enters the first light energy utilization unit.

[0038] In another embodiment, the convex light collecting device is a liquid lens, the light energy utilization device can be directly immersed in the transparent liquid, and the first light energy utilization portion can directly receive the sunlight transmitted through the transparent liquid.

[0039] In another embodiment, the first light energy utilization unit functions as a part of a convex light collecting device, and an outer wall (a surface receiving sunlight) of the first light energy utilization unit is light-transmitting. convex side It is directly or indirectly connected to the wall and forms the bottom wall of the receiving cavity.

[0040] The inner space of the convex light collector is partially or entirely filled with transparent liquid. In a preferred embodiment, the transparent liquid substantially fills the entire receiving cavity to achieve better effect.

[0041] When the convex light collecting device is used, light can be collected using one or more convex light collecting devices. Correspondingly, the light energy utilization device may have one or more first light energy utilization units, or one or more light energy utilization devices may be provided to be used in combination with the convex light collecting device. Alternatively, the light energy utilization device may be a light energy utilization device having a collector. For example, the light energy utilization device has a first light energy utilization unit on one side, or has a first light energy utilization unit on both sides.

[0042] In one embodiment, the convex light concentrator uses transparent glass or plastic to form a solid lens, or uses transparent glass or plastic to form a transparent containment cavity, and a transparent liquid, which may be purified water (water), antifreeze (a mixture of water and ethylene glycol), or other environmentally friendly transparent liquid (such as a mixture of water and glycerin), is filled into the containment cavity.

[0043] In addition, the transparent liquid can form a heat transfer structure directly or indirectly with the first light energy utilization part, and further plays a role in reducing temperature or absorbing heat with respect to the first light energy utilization part, thereby improving the light energy utilization rate.

[0044] Based on the above-mentioned inventive concept, the following will further describe with several different embodiments to better illustrate the invention.

[0045] Example 1 Referring to FIG. 1, the solar energy utilization device disclosed in this embodiment includes a convex collector 100 and a light energy utilization device 200. The convex collector 100 has a sealed structure and encloses a sealed receiving cavity, which is filled with a transparent liquid 130. The receiving cavity is a light-transmitting convex side The light energy utilization device 200 has a wall 110 and a light-transmitting bottom wall 120. The light energy utilization device 200 has a first light energy utilization section 210 (in the drawing, the first light energy utilization section 210 is shown together with the light-transmitting bottom wall 120 since it is in close contact with the light-transmitting bottom wall 120) located outside the light-transmitting bottom wall 120 and in close contact with the light-transmitting bottom wall 120, and capable of receiving sunlight and converting and utilizing the sunlight.

[0046] Of course, in another embodiment, the first light energy utilization part 210 of the light energy utilization device 200 may be the bottom wall of the convex light collecting device 100, and the light energy utilization device 200 and the convex light collecting device 100 may be integrally configured.

[0047] Figure 1 shows the optical transparency convex side This shows the process in which the incident light L is totally reflected by the wall 110 up to the light energy utilization device 200. This is one of the major differences between the present invention and other light-concentrating devices, in that the light-concentrating function is realized by fully utilizing the total reflection function of the transparent liquid 130 in the convex light-concentrating device 100. At the same time, the transparent liquid 130 is also used to cool or absorb heat from the light energy utilization device 200, thereby improving the light energy utilization rate of the light energy utilization device 200. That is, the light transmittance convex side The wall 110 simultaneously has two functions: it transmits incident light from the outside at one surface, and it totally reflects light from the transparent liquid 130 at one surface.

[0048] 1, in this embodiment, the longitudinal cross section of the convex light collector 100 (vertical direction is longitudinal, same below) is a triangular folded surface. In other embodiments, the cavity wall of the convex light collector 100 may be a curved or folded surface of other shapes, for example, a folded surface with a rectangular or pentagonal cross section. The longitudinal cross section of the convex light collector 100 may be another shape arranged in an upwardly convex shape.

[0049] Continuing to refer to FIG. 1, in this embodiment, the convex-type light collecting 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 provided at the center of the light-transmitting bottom wall 120 of the convex-type light collecting device 100. Meanwhile, in other embodiments, the convex-type light collecting device 100 may have an asymmetrical structure. In other embodiments, the light energy utilization device 200 may be provided at a position offset to one side of the light-transmitting bottom wall 120, and does not need to be located at the center of the light-transmitting bottom wall 120.

[0050] 1, in this embodiment, the size of the light-transmitting bottom wall 120 is the same as the size of the light-receiving surface (surface that receives sunlight) of the first light energy utilization unit 210. In other embodiments, the light-transmitting bottom wall 120 may be larger than the light-receiving surface area of ​​the first light energy utilization unit 210, or may be smaller than the light-receiving surface area of ​​the first light energy utilization unit 210.

[0051] Continuing to refer to FIG. 1, in this embodiment, convex side The wall 110 has a symmetrical structure (along the centerline C of the light energy utilization device 200), but in other embodiments, the wall 110 may be light-transmitting. convex side The wall 110 may be of asymmetric construction.

[0052] Example 2 Referring to FIG. 2, the solar energy utilization device disclosed in this embodiment includes a convex concentrating device 100 and a light energy utilization device 200. The solar energy utilization device 200 includes a convex concentrating device 100 and a light energy utilization device 200. The convex concentrating device 100 is a convex ...

[0053] The solar energy utilization device shown in this embodiment is distinguished from the first embodiment in that a first light guiding member 140 is provided in the convex light collecting device 100, and the first light guiding member 140 guides the sunlight toward the first light energy utilization unit 210. The guidance method is either refraction or reflection.

[0054] 2, in this embodiment, the first light-guiding member 140 is a Fresnel lens that is substantially perpendicular to the light-transmitting bottom wall 120 and deflects incident light toward the light-transmitting bottom wall 120. In one embodiment, the Fresnel lens can be a linear Fresnel lens, a double-sided Fresnel lens, or a double-sided linear Fresnel lens.

[0055] This vertically arranged Fresnel lens greatly improves the light deflection ability of the convex concentrator 100 in this embodiment and can be used to accommodate the east-west deflection of the sun, thus saving the sun tracking system.

[0056] Furthermore, in other embodiments, the first light-guiding member 140 may be a reflective member (e.g., a reflective Finnel lens), and may be disposed within the convex light-collecting device 100 at other angles, such as at an angle to the vertical.

[0057] 2, the solar energy utilization device shown in this embodiment differs from that in the first embodiment in that it further includes a second light guiding member 300. The second light guiding member 300 is provided on the outer side of the convex light collecting device 100, and guides sunlight toward the light-transmitting convex side wall 110 of the convex light collecting device 100.

[0058] 2, in this embodiment, the second light-guiding member 300 is a reflector disposed on one or both sides of the convex light collecting device 100, and the reflective surface of the reflector faces the convex light collecting device 100 to reflect sunlight to the convex light collecting device 100. In Fig. 2, the two second light-guiding members 300 form an opening structure with a large upper portion and a small lower portion, so that more sunlight is irradiated into the opening structure from the opening, and more sunlight is collected.

[0059] In other embodiments, the guidance method may be reflective or transmissive.

[0060] Further referring to FIG. 2, in this embodiment, the second light-guiding member 300 is fixedly connected to the convex light-concentrating device 100 or the light energy utilization device, and the second light-guiding member 300 has a hooking lug 310 for mounting the solar energy utilization device, and the entire solar energy utilization device is hooked onto another object or another solar energy utilization device through the hooking lug 310.

[0061] Example 3 Referring to FIG. 3, the solar energy utilization device disclosed in this embodiment includes a convex collector 100 and a light energy utilization device 200. Furthermore, the solar energy utilization device includes a sealed container 500. The convex collector 100 and the light energy utilization device 200 are arranged in the sealed container 500. The sealed container 500 can simultaneously provide protection such as dustproofing and waterproofing for both the convex collector 100 and the light energy utilization device 200. The sealed container 500 has a light-transmitting surface 530 formed of a light-transmitting material, and sunlight can be incident into the convex collector 100 from the light-transmitting surface 530. The light-transmitting surface 530 may be the upper surface of the sealed container 500, or one or more surfaces of the sealed container 500. In the sealed container 500, a working material 510 is provided that is in contact with the light energy utilization device 200 and can dissipate and cool the light energy utilization device 200 and utilize the heat.

[0062] In one embodiment, the convex collector 100 is a receiving cavity filled with a transparent liquid, and the receiving cavity is in communication with the sealed container 500. For example, the bottom or side of the convex collector 100 is in communication with the sealed container 500. The working material 510 is the same transparent liquid 130 as that in the convex collector 100, so that the transparent liquid 130 can flow between the cavity of the sealed container 500 and the convex collector 100. In one embodiment, the transparent liquid 130 can cover the convex collector 100, and the liquid level is higher than that of the convex collector 100, so that the transparent liquid 130 can be filled in the convex collector 100 and the liquid in the convex collector 100 can be prevented from decreasing.

[0063] In another embodiment, the convex light collector 100 is a solid lens. In this case, a working substance 510 can be accommodated in the sealed container 500, for example, air, water, or other liquid. At the same time, the sealed container 500 may have a first external interface 520 that is docked with an external pipe for the working substance 510 to enter and exit the sealed container 500, and the working substance 510 can be used to complete a heat cycle with the outside, generate electricity, and perform other operations such as providing hot water.

[0064] Further, referring to FIG. 3, in this embodiment, the convex light collecting device 100 having an asymmetric structure with respect to the center line C of the light energy utilization device 200 and the light transmitting convex side This shows a case where deviation in the directivity of sunlight is accommodated by the wall 110. This embodiment can be installed lying down in high latitude regions.

[0065] Of course, the convex light collecting device 100 or the light transmitting convex side The wall 110 may be designed symmetrically with respect to the center line C of the light energy utilization device 200.

[0066] 2, a first light-guiding member 140 may be disposed in the convex light collecting device 100 to guide the sunlight to the first light energy utilization unit 210. The guidance method may be either refraction or reflection.

[0067] 3, the solar energy utilization device further includes a second light-guiding member 300. The second light-guiding member 300 is disposed outside the convex-type light-concentrating device 100 and in the sealed container 500. convex side Directs sunlight towards wall 110.

[0068] Example 4 Referring to FIG. 4, the solar energy utilization device disclosed in this embodiment includes a convex light collecting device 100 and a light energy utilization device 200. Furthermore, the solar energy utilization device includes a third light guiding member 600. The third light guiding member 600 has a receiving cavity. The receiving cavity has a light reflective side wall 610 and a light reflective bottom wall 620, and the convex light collecting device 100 and the light energy utilization device 200 are disposed in the receiving cavity. The light energy utilization device 200 has a second light energy utilization unit 220 disposed in a direction opposite to the first light energy utilization unit 210, and the second light energy utilization unit 220 is disposed opposite to the light reflective bottom wall 620, and the light reflective side wall 610 and the light reflective bottom wall 620 reflect a part of the sunlight to the second light energy utilization unit 220. The light-reflective side walls 610 and bottom wall can be formed using a variety of materials and structures capable of reflecting, such as a reflecting mirror or a reflective Fresnel lens surface.

[0069] 4, in one embodiment, in the light energy utilization device 200, the first light energy utilization unit 210 is provided facing upward, and the second light energy utilization unit 220 is provided facing downward. The light reflective side wall 610 can reflect a portion of the sunlight to the convex light collecting device 100. A portion of the sunlight is incident on the lower side of the second light energy utilization unit 220 and is reflected to the second light energy utilization unit 220 by the light reflective side wall 610 and the light reflective bottom wall 620.

[0070] Continuing to refer to FIG. 4, in order to better reflect sunlight to the second light energy utilization unit 220, in one embodiment, the light reflective bottom wall 620 has a W-shaped reflective surface. Of course, the light reflective bottom wall 620 may have other shapes, such as a V-shape or a U-shape. In this embodiment, the light reflective bottom wall 620 is a simple W-shaped reflective surface. In other embodiments, the W-shaped reflective surface may be replaced with a reflective Fresnel lens surface.

[0071] In another embodiment, referring to FIG. 4 , the third light-guiding member 600 has a light-transmitting top wall 630, and the light-transmitting top wall 630, the light-reflective side walls 610 and the light-reflective bottom wall 620 are enclosed as a sealed accommodating cavity, so that the third light-guiding member 600 can provide protection such as dustproofing and waterproofing to the convex light-collecting device 100 and the light energy utilization device 200.

[0072] In addition, the area of ​​the light-transmitting bottom wall 120 may be the same as or different from the area of ​​the light-receiving surface of the first light energy utilization unit 210. Referring to Fig. 4, the area of ​​the light-transmitting bottom wall 120 is larger than the area of ​​the light-receiving surface of the second light energy utilization unit 220, and the sunlight entering this part from the transparent liquid 130 can enter the space below the second light energy utilization unit 220, so that the sunlight is reflected to the second light energy utilization unit 220 by the reflection of the light-reflective bottom wall 620, and the sunlight entering the second light energy utilization unit 220 is increased.

[0073] The solar energy utilization device shown in this embodiment has two light energy utilization sections 210, 220 and a third light-guiding member 600, which can further improve the light collection efficiency and at the same time is advantageous to improving the compactness and small size of the solar energy utilization device.

[0074] Example 5 5, the solar energy utilization device disclosed in this embodiment includes a convex light collecting device 100 and a light energy utilization device 200. Furthermore, the solar energy utilization device includes a reflecting member 800 and a support structure 900.

[0075] The convex type light collecting device 100 includes two, a first convex type light collecting device 101 and a second convex type light collecting device 102, and the light energy utilization device 200 has a second light energy utilization unit 220 separated from the first light energy utilization unit 210. The first convex type light collecting device 101 is located above the first light energy utilization unit 210, and the second convex type light collecting device 102 is located below the second light energy utilization unit 220. The first convex type light collecting device 101, the second convex type light collecting device 102, and the light energy utilization device 200 are attached to the support structure 900. The reflecting member 800 is located below the second convex type light collecting device 102 and the light energy utilization device 200, and reflects sunlight to the second convex type light collecting device 102 and / or the second light energy utilization unit 220. In this embodiment, the second convex type light collecting device 102 is a liquid lens filled with a transparent liquid 130. The reflecting member 800 can adopt various structures that enable reflection of sunlight, such as a U-shaped reflector or a reflective Fresnel lens.

[0076] Specifically, referring to Fig. 5, this embodiment shows an array-type structure. L in Fig. 5 is sunlight, and Fig. 5 shows the process in which the reflecting member 800 at the bottom reflects the sunlight to the second convex light collecting device 102, which also forms a total reflection phenomenon inside. The light transmittance of the second convex light collecting device 102 convex side Similarly, sunlight incident on the transparent liquid 130 in the second convex convex light collector 102 through the wall 110 is also optically transparent. convex side The light is totally reflected when it enters the wall 110, and is finally focused on the second light energy utilization unit 220. The second light energy utilization unit 220 may be provided on the outside of the light-transmitting bottom wall 120 of the second convex light-concentrating device 102, or may be the bottom wall of the second convex light-concentrating device 102 so as to be integral with the second convex light-concentrating device 102.

[0077] Referring to FIG. 5 , in one embodiment, the first convex-type light-collecting device 101 and / or the second convex-type light-collecting device 102 is provided with a second external interface 103 that can be connected to an external pipe for the transparent liquid 130 to flow in and out, so as to apply the transparent liquid 130 so that the transparent liquid 130 exchanges heat with an external heat circulation system, and to make maximum use of the thermal energy obtained from the transparent liquid 130.

[0078] The reflecting member may also be used in combination with a single convex type light collecting device. Referring to FIG. 5, in one embodiment, the second convex type light collecting device 102 may be eliminated, and only the first convex type light collecting device 101 may be provided on the light energy utilization device 200 having the first light energy utilization unit 210 and the second light energy utilization unit 220. In this case (arranging the convex type light collecting device 101 on the light energy utilization device 200), it is called an upright arrangement. In another embodiment, the first convex type light collecting device 101 may be eliminated, and only the second convex type light collecting device 102 may be arranged below the light energy utilization device 200 having the first light energy utilization unit 210 and the second light energy utilization unit 220. In this case (the light energy utilization device 200 is arranged on the convex type light collecting device 102), it is called an inverted installation. When the convex type light collecting devices 101 and 102 are arranged on both sides of the light energy utilization device 200, it is called a double-sided installation. FIG. 5 shows the double-sided installation.

[0079] Further, referring to FIG. 5, in one embodiment, the device further includes a dust prevention device 1000 (such as a dust cover), and the reflective member 800, the support structure 900, and the convex focusing device 100 are disposed within the dust prevention device 1000 to facilitate cleaning of dust.

[0080] 5, in one embodiment, the convex light collecting device 100 and the light energy utilization device 200 can be two or more pairs and can be used as a pair. A single reflecting member 800 and a dust prevention device 1000 can be shared between the convex light collecting device 100 and the light energy utilization device 200 of different pairs, or a corresponding reflecting member 800 and a dust prevention device 1000 can be provided separately.

[0081] In the above, the present specification has been described by applying specific examples, but these are only used to facilitate understanding of the present invention and are not used to limit the present invention. Those skilled in the art can modify the above specific examples based on the spirit of the present invention.

Claims

1. A solar energy utilization device including a light energy utilization device and a convex concentrating device, The light energy utilization device has a first light energy utilization unit that receives sunlight and converts and utilizes the sunlight, the convex concentrator is a solid lens; The convex-type light collecting device has a light-transmitting convex side wall arranged in a convex shape inclined with respect to a center line of the light energy utilization device, and sunlight can be transmitted through the solid lens from the light-transmitting convex side wall, The first light energy utilization unit is provided at a bottom of the convex light collecting device, In the convex-type light collecting device, sunlight incident from the solid lens toward the light-transmitting convex side wall undergoes a total reflection phenomenon, and the sunlight is collected toward the first light energy utilization unit, Further comprising a second light-guiding member which is a reflective member disposed on one or both sides of the convex light-collecting device outside the convex light-collecting device, a reflecting surface of the reflecting member facing the convex convex concentrating device and directing sunlight toward the light-transmitting convex side wall of the convex convex concentrating device; The reflecting member is fixedly connected to the convex light collecting device or the light energy utilization device, The reflective member has a hook for attaching the solar energy utilization device. A solar energy utilization device characterized by:

2. The first light energy utilization unit is superimposed on the bottom of the light-transmitting bottom wall of the convex light-collecting device, or the first light energy utilization unit forms the bottom wall of the convex light-collecting device.

2. The solar energy utilization device according to claim 1 .

3. A Fresnel lens serving as a first light guiding member is provided in the convex light collecting device, The Fresnel lens is disposed perpendicular to the light receiving surface of the first light energy utilization unit.

2. The solar energy utilization device according to claim 1 .

4. Further comprising a sealed container, The light energy utilization device and the convex light collecting device are provided in the sealed container, The sealed container has a light-transmitting surface through which sunlight can be incident on the convex light collecting device, and a working substance is accommodated in the sealed container, and the working substance is a substance that can be brought into contact with the light energy utilization device, dissipate heat and cool the light energy utilization device, and utilize the heat.

4. The solar energy utilization device according to claim 1, wherein the solar energy utilization device is a solar energy utilization device.

5. The convex light collecting device is arranged in a sealed manner, The sealed container has a first external interface for allowing the working substance to enter and exit the sealed container in order to utilize the working substance.

5. The solar energy utilization device according to claim 4.

6. The third light-guiding member further includes a receiving cavity, the receiving cavity having a light-reflective side wall and a light-reflective bottom wall; The light energy utilization device and the convex light collecting device are disposed in the receiving cavity; The light energy utilization device has a second light energy utilization unit arranged in a direction opposite to the first light energy utilization unit, The second light energy utilization unit is provided opposite the light reflective bottom wall, The light-reflective side wall and the light-reflective bottom wall reflect a portion of the sunlight to the second light energy utilization unit.

4. The solar energy utilization device according to claim 1, wherein the solar energy utilization device is a solar energy utilization device.

7. The light-reflective bottom wall has a W-shaped reflective surface.

7. The solar energy utilization device according to claim 6.

8. the receiving cavity has a light-transmitting top wall, the light-transmitting top wall, the light-reflective side walls and the light-reflective bottom wall forming the receiving cavity sealed; 7. The solar energy utilization device according to claim 6.

9. Further comprising a reflective member and a support structure; The convex light collecting 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 unit arranged in a direction opposite to the first light energy utilization unit, The reflecting member is located below the convex collecting device and the light energy utilization device, and reflects sunlight to the convex collecting device and / or one of the second light energy utilization unit and the first light energy utilization unit, The reflecting member is a Fresnel lens reflecting surface or a curved reflecting mirror.

4. The solar energy utilization device according to claim 1, wherein the solar energy utilization device is a solar energy utilization device.

10. Two convex condensing devices are provided corresponding to each light energy utilization device, and the two convex condensing devices are a first convex condensing device and a second convex condensing device, respectively; the first convex light collecting device is located above the first light energy utilization unit, The second convex light collecting device is located below the second light energy utilization unit, 10. The solar energy utilization device according to claim 9.

11. The longitudinal cross section of the convex light collecting device is a polygon, and the number of sides of the polygon is three or more.

4. The solar energy utilization device according to claim 1, wherein the solar energy utilization device is a solar energy utilization device.

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