Combination structure of solar energy utilization units

Abstract

A solar energy utilization unit and its combined structure, the solar energy utilization unit includes a light energy utilization device 100, a liquid light collecting device 200, and a reflecting structure 300. The liquid light collecting device has a receiving cavity filled with a transparent liquid. The liquid light collecting device is formed as a structure capable of transmitting the sunlight of the light energy utilization device 100 to the first light energy utilization unit and / or totally reflecting it. A light reflecting cavity is formed between the reflecting structure, the second light energy utilization unit, and the liquid light collecting device, and the sunlight incident into the light reflecting cavity can be reflected by the reflecting structure and reach the second light energy utilization unit. This structure allows the sunlight to be absorbed and utilized from both sides of the first light energy utilization unit and the second light energy utilization unit facing each other of the light energy utilization device, improving the efficiency of condensing and utilizing the sunlight.

Description

[Technical field]

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

[0002] Solar energy utilization devices are used to recycle solar energy, for example to generate solar power through solar panels. As the cost of solar panels decreases and their efficiency increases, the use of solar energy utilization devices is becoming more and more common. However, it is possible to further improve the concentration efficiency of solar energy for current low-magnification concentrating solar power generation devices. Summary of the Invention

[0003] The present disclosure mainly provides a new type of solar energy utilization unit and its combined structure to present a new solar energy utilization structure.

[0004] Based on the above object, in one embodiment, the present invention provides a solar energy utilization unit including a light energy utilization device, a liquid concentrator, and a reflecting structure.

[0005] The light energy utilization device has a first light energy utilization unit and a second light energy utilization unit arranged opposite each other, and the first light energy utilization unit and the second light energy utilization unit are capable of receiving, converting, and utilizing sunlight.

[0006] The liquid light collecting device has a storage cavity filled with a transparent liquid. The storage cavity has a light-transmitting cavity wall, and the sunlight can reach the transparent liquid by passing through the light-transmitting cavity wall. The light energy utilization device is disposed inside or outside the storage cavity, or forms a cavity wall of the storage cavity. The first light energy utilization part is disposed facing the liquid light collecting device or the transparent liquid. The liquid light collecting device is formed as a structure capable of transmitting sunlight to the first light energy utilization part and / or totally reflecting the sunlight.

[0007] A light inlet for allowing sunlight to enter is provided between the reflection structure and the liquid light collecting device. A light reflecting cavity connected to the light inlet is formed between the reflection structure, the second light energy utilization unit, and the liquid light collecting device. Sunlight entering the light reflecting cavity can be reflected by the reflection structure and reach the second light energy utilization unit.

[0008] In one embodiment, the light reflecting cavity is disposed adjacent to at least one side of the liquid light collecting device and the light energy utilization device, and below the second light energy utilization portion.

[0009] In one embodiment, the reflective structure is a groove-shaped structure having an internal reflective surface for reflecting sunlight to the second light energy utilization section, and the light energy utilization device and the liquid concentrating device are disposed within the groove-shaped structure.

[0010] In one embodiment, one sidewall of the groove-shaped structure overlaps a portion of a cavity wall of the liquid light collector, and another opposing sidewall is spaced away from the liquid light collector to form the light reflecting cavity.

[0011] In one embodiment, a portion of the cavity wall is an optically transparent cavity wall.

[0012] In one embodiment, two opposing side walls of the groove-shaped structure are both spaced apart from the liquid light collector to form the light reflecting cavity.

[0013] In one embodiment, the cavity wall of the liquid light collector facing the light reflecting cavity is a light transmissive cavity wall, a single-sided reflective cavity wall or a double-sided reflective cavity wall.

[0014] In one embodiment, the liquid collector has a structure that is wider at the top and narrower at the bottom, and at least a top wall of the liquid collector is a translucent cavity wall, thereby allowing sunlight to pass through the top wall and reach the transparent liquid.

[0015] In one embodiment, the optical fiber further includes a light-transmitting cover, which together with the reflecting structure and / or the liquid light-collecting device forms a sealed structure, and the optical energy utilization device is disposed within the sealed structure.

[0016] In one embodiment, the light energy utilization device, the liquid light concentrating device and the reflecting structure extend in the same direction to form an elongated shape.

[0017] Based on the above object, as one embodiment, the present invention provides a combined structure of solar energy utilization units including at least two of the solar energy utilization units described above.

[0018] In one embodiment, the solar energy utilization units are arranged in parallel, and a cavity accommodating a heat-utilizing working medium, a secondary battery, and / or a control circuit board is formed between adjacent solar energy utilization units.

[0019] In one embodiment, the solar energy utilization units are arranged in parallel, and the reflecting structures of at least two adjacent solar energy utilization units are connected, and a cavity is formed with the two adjacent liquid collectors. A second light energy utilization device and a second liquid collector located below the second light energy utilization device are arranged in the cavity, and the second light energy utilization device has a first light energy utilization section and a second light energy utilization section arranged facing each other. The first light energy utilization section of the second light energy utilization device is arranged facing upward to receive sunlight incident from above. In order to receive sunlight focused by the second liquid collector, the second light energy utilization section of the second light energy utilization device faces the second liquid collector or is used as a cavity wall of the second liquid collector.

[0020] In one embodiment, the second liquid light collector is wider at the top and narrower at the bottom, and the narrower lower portion of the second liquid light collector is connected to the reflective structures of the two adjacent solar energy utilization units to form respective light reflective cavities with the two adjacent solar energy utilization units.

[0021] In one embodiment, a gap is provided between the cavity wall of the second liquid light collecting device and the adjacent liquid light collecting devices on both sides, and a partial area of ​​the light reflecting cavity extends to the gap.

[0022] In one embodiment, at least a portion of the cavity wall of the second liquid light collector facing the liquid light collectors on both sides is a light-transmitting cavity wall.

[0023] In one embodiment, the second liquid light collector and the adjacent liquid light collectors on either side of the second liquid light collector share a cavity wall or the two cavity walls of the adjacent second liquid light collector and liquid light collector overlap, the shared or overlapping cavity wall being a light-transmitting cavity wall or a double-sided reflective cavity wall.

[0024] In one embodiment, the cavity wall of the second liquid collector and the solar energy utilization units on both sides each form the light-reflecting cavity, and at least a portion of the cavity wall of the second liquid collector facing the light-reflecting cavity is a light-transmitting cavity wall.

[0025] In one embodiment, the second liquid concentrator and the reflecting structures of the solar energy utilization units on both sides are connected in a thermally conductive manner.

[0026] In one embodiment, the liquid concentrators of adjacent solar energy utilization units are separated from each other so that separate cavities are formed, or are within one cavity.

[0027] The solar energy utilization unit according to the above embodiment includes a light energy utilization device, a liquid light collecting device, and a reflecting structure. The light energy utilization device has a first light energy utilization section and a second light energy utilization section that are arranged facing each other. The first light energy utilization section and the second light energy utilization section can receive, convert, and utilize sunlight. The liquid light collecting device has a storage cavity filled with a transparent liquid. The light energy utilization device is arranged inside or outside the storage cavity, or forms a cavity wall of the storage cavity. The first light energy utilization section is arranged facing the liquid light collecting device or the transparent liquid. The liquid light collecting device is formed as a structure that can transmit sunlight to the first light energy utilization section and / or totally reflect it. A light entrance port for allowing sunlight to enter is provided between the reflecting structure and the liquid light collecting device. A light reflection cavity connected to the light entrance port is formed between the reflecting structure, the second light energy utilization section, and the liquid light collecting device. The sunlight entering the light reflecting cavity can be reflected by the reflecting structure and reach the second light energy utilization unit. This structure allows the sunlight to be absorbed and utilized from both sides of the first light energy utilization unit and the second light energy utilization unit facing each other in the light energy utilization device, improving the efficiency of collecting and utilizing the sunlight. [Brief description of the drawings]

[0028] [Figure 1] 1 is a schematic vertical cross-sectional view of a solar energy utilization unit according to one embodiment of the present invention. [Diagram 2] 1 is a schematic vertical cross-sectional view of an assembled structure of a solar energy utilization unit according to one embodiment of the present invention. [Diagram 3] 10 is a schematic vertical cross-sectional view of an assembled structure of a solar energy utilization unit according to another embodiment of the present invention. FIG. [Figure 4] 10 is a schematic vertical cross-sectional view of an assembled structure of a solar energy utilization unit according to another embodiment of the present invention. FIG. [Diagram 5]10 is a schematic vertical cross-sectional view of an assembled structure of a solar energy utilization unit according to another embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] The present invention will be described in more detail below with reference to the drawings through specific embodiments. For similar parts in different embodiments, relevant similar part symbols are adopted. Many detailed descriptions in the following embodiments are provided to allow a better understanding of the present invention. However, those skilled in the art can easily recognize that some features can be omitted in different situations or can be replaced by other parts, materials and methods. In order to avoid the core part of the present invention being buried in excessive description, some operations according to the present invention may not be shown or described in the specification. For those skilled in the art, it is not necessary to describe these related operations in detail, and those skilled in the art can fully understand the related operations based on the description in this specification and general technical knowledge in the field.

[0030] It should be noted that the features, operations, or characteristics described herein may be combined in any suitable manner to form various embodiments. Also, the steps or actions in the method descriptions may be reordered or adjusted in a manner that would be apparent to one of ordinary skill in the art. Thus, any order in the specification and drawings is merely for the purpose of clarifying one embodiment, and does not imply a required order unless specifically stated that a particular order must be followed. The part numbers in this specification, 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" described in the present invention includes direct and indirect connection unless otherwise specified.

[0031] In this specification, positional relationships such as up and down are relative and do not have an absolute meaning.

[0032] The present embodiment provides a solar energy utilization unit that is used to receive and utilize sunlight to perform energy conversion and convert the sunlight into electrical energy, thermal energy and other forms of energy for people to use. The present embodiment also provides a combination structure that uses the solar energy utilization units in combination, so as to further improve the concentration and utilization efficiency of the solar energy through combination.

[0033] 1 to 5. The solar energy utilization unit C in this embodiment includes a light energy utilization device 100, a liquid light collecting device 200, and a reflecting structure 300.

[0034] The light energy utilization device 100 has a first light energy utilization unit 110 and a second light energy utilization unit 120 arranged opposite to each other. The first light energy utilization unit 110 and the second light energy utilization unit 120 can receive, convert, and utilize sunlight. In one embodiment, the light energy utilization device 100 may be one or more of a double-sided solar cell panel, a light heat utilization device, a photovoltaic and thermal energy integrated utilization device, and a light-concentrating type light energy utilization device. The solar cell panel generally refers to a device that directly converts light energy into electrical energy, and includes various semiconductor solar cell panels, film-type solar cells, quantum dot photoelectric conversion elements, etc. In other embodiments, the first light energy utilization unit 110 and the second light energy utilization unit 120 may be other types of solar energy utilization conversion structures.

[0035] The liquid light collecting device 200 has a containing cavity filled with a transparent liquid 201. A part or all of the cavity walls of the containing cavity are transparent cavity walls (for example, may include one or more of a transparent side wall 220, a transparent top wall 210, and a transparent bottom wall 230), and sunlight can reach the transparent liquid 201 through the transparent cavity walls. The liquid light collecting device 200 is formed as a structure that can transmit sunlight to the first light energy utilization unit 110 and / or can totally reflect the sunlight. That is, the sunlight incident into the transparent liquid 201 can directly transmit through the transparent liquid 201 to reach the first light energy utilization unit 110, can be reflected to the first light energy utilization unit 110 by the total reflection phenomenon caused between the transparent liquid 201 and the transparent cavity walls, or can be reflected toward the first light energy utilization unit 110 through some reflective cavity walls. In order to realize total reflection, the structure of the liquid light collector 200 is set as follows. The sunlight incident on the light-transmitting cavity wall from the transparent liquid 201 at a certain angle can cause the phenomenon of total reflection (or total internal reflection). That is, the sunlight from a certain angle does not exit from the light-transmitting cavity wall, but continues to propagate through the liquid light collector 200 by the action of total reflection, and is finally converged on the first light energy utilization unit 110. In a given design, the sunlight incident on the light-transmitting cavity wall from the transparent liquid 201 at other angles can be transmitted to the reflection structure 300, where it can be concentrated on the second light energy utilization unit 120 of the light energy utilization device 100. To prevent this transmission phenomenon from occurring, the corresponding cavity walls can be set as single-sided or double-sided reflective cavity walls, so that the sunlight can be prevented from exiting the liquid light collector 200 from these cavity walls.

[0036] Please refer to FIG. 1 to FIG. 5. In some embodiments, the receiving cavity has a transparent top wall 210, a transparent side wall 220, and a transparent bottom wall 230. The transparent side wall 220 is arranged at an incline, and the sunlight in the transparent liquid 201 can pass through the transparent side wall 220 to reach the reflection structure 300, or can be totally reflected on the first light energy utilization unit 110 of the light energy utilization device 100. The liquid light collecting device 200 having the inclined transparent side wall 220 can accommodate incident light with a larger deflection angle, and can accommodate not only the north-south return deflection of the sunlight, but also the east-west deflection of the sunlight. In one embodiment, the transparent side wall 220 may be composed of one or a combination of a flat surface, a folded surface, and a curved surface. In another embodiment, at least a part of the transparent side wall 220 may be set as a single-sided or double-sided reflecting surface. The light-transmitting side wall 220 in this embodiment not only transmits light but also totally reflects it. Compared to the conventional technology, under the same conditions, the liquid light collecting device 200 can collect more sunlight to the first light energy utilization unit 110, and the light collecting efficiency is improved.

[0037] The light energy utilization device 100 is disposed inside or outside the containing cavity, or forms a cavity wall of the containing cavity. The first light energy utilization unit 110 is disposed facing the liquid light collecting device 200 or the transparent liquid 201. In the containing cavity, the sunlight is concentrated on the first light energy utilization unit 110 by a phenomenon of total reflection of at least a part of the sunlight from the transparent liquid 201 to the light-transmitting cavity wall.

[0038] Specifically, the light energy utilization device 100 may be disposed outside the liquid light collecting device 200. The first light energy utilization unit 110 is attached to the liquid light collecting device 200 so that sunlight in the liquid light collecting device 200 is collected on the first light energy utilization unit 110. Alternatively, the first light energy utilization unit 110 may be disposed within a housing cavity, or may form a part of the cavity wall of the liquid light collecting device 200. The above structure may also be used and disposed between a second liquid light collecting device 600 and a second light energy utilization device 700, which will be described later.

[0039] 1 to 5, in one embodiment, the liquid light collecting device 200 has a light-transmitting bottom wall 230 made of a light-transmitting material. The first light energy utilization unit 110 is joined to the outside of the light-transmitting bottom wall 230, and for example, the first light energy utilization unit 110 is fixed to the outside of the liquid light collecting device 200. In the liquid light collecting device 200, sunlight is collected on the first light energy utilization unit 110.

[0040] In another embodiment, the light energy utilization device 100 may be immersed in the transparent liquid 201, and the first light energy utilization unit 110 can directly receive the sunlight transmitted through the transparent liquid 201.

[0041] In another embodiment, the first light energy utilization part 110 is used as part of the liquid collecting device 200, and the outer wall (the side for receiving sunlight) of the first light energy utilization part 110 is directly or indirectly connected to the translucent side wall 220 to form the bottom wall of the storage cavity.

[0042] A part or the whole of the space in the liquid light collector 200 (or the second liquid light collector 600) is filled with the transparent liquid 201. In one embodiment, the transparent liquid 201 is preferably filled almost completely in the entire receiving cavity to obtain a better effect. In this embodiment, the transparent liquid 201 is used as a light propagation medium. In one embodiment, the transparent liquid 201 may be deionized purified water, glycerin, alcohol, ethylene glycol, or a mixture thereof. The same or different transparent liquids can be used for the liquid light collector 200 and the second liquid light collector 600 to achieve different effects.

[0043] In addition, the transparent liquid 201 can directly or indirectly form a heat transfer structure with the first light energy utilization unit 110 and the second light energy utilization unit 120. This provides a cooling effect or a heat absorption effect on the first light energy utilization unit 110 and the second light energy utilization unit 120, improving the light energy utilization rate.

[0044] Please refer to FIG. 1 to FIG. 5. Furthermore, a light inlet for allowing sunlight to enter is provided between the reflecting structure 300 and the liquid light collecting device 200. A light reflecting cavity 310 connected to the light inlet is formed between the reflecting structure 300 and the second light energy utilization unit 120 and the liquid light collecting device 200. The cavity wall of the liquid light collecting device 200 facing the light reflecting cavity 310 may be a light-transmitting cavity wall, a single-sided reflecting cavity wall facing the transparent liquid 201 or the light reflecting cavity 310, or a double-sided reflecting cavity wall. Sunlight may enter the light reflecting cavity 310 from the light inlet, and in some embodiments, the sunlight may pass through a light-transmitting cavity wall (e.g., a light-transmitting side wall 220 or another light-transmitting cavity wall) of the liquid light collecting device 200 to reach the light reflecting cavity 310. The reflecting structure 300 allows sunlight entering the light reflecting cavity 310 to be reflected and reach the second light energy utilization unit 120, so that more sunlight can be absorbed and utilized by the second light energy utilization unit 120.

[0045] The light reflecting cavity 310 is disposed in contact with at least one side surface of the liquid light collecting device 200 and the light energy utilization device 100 and below the second light energy utilization section 120, thereby more effectively converging the sunlight toward the second light energy utilization section 120. For example, the light reflecting cavity 310 may be disposed around the liquid light collecting device 200 and the light energy utilization device 100, or may be disposed so as to be in contact with only one or more side surfaces of the liquid light collecting device 200 and the light energy utilization device 100. This allows the sunlight that reaches these regions to be received, and a portion of the sunlight outside the light receiving range of the liquid light collecting device 200 is reflected to reach the second light energy utilization section 120 of the light energy utilization device 100 and the liquid light collecting device 200, thereby improving the light collecting efficiency of the light energy utilization device 100.

[0046] Please refer to FIG. 1 to FIG. 5. In some embodiments, the reflection structure 300 is disposed on the outside and bottom of the liquid light collector 200, for example, so as to contact one or more side surfaces of the convex liquid light collector 200. The reflection structure 300 has a reflection surface. The reflection surface may be various structures capable of reflecting sunlight, such as a reflective Fresnel lens, a reflecting mirror, or a highly reflective coating. The reflection structure 300 can not only directly collect sunlight on the second light energy utilization unit 120, but also collect sunlight toward the liquid light collector 200. In particular, when the cavity wall facing the light reflecting cavity 310 of the liquid light collector 200 is a light-transmitting cavity wall (for example, the light-transmitting side wall 220), the reflection structure 300 can expand the range of the liquid light collector 200 that receives sunlight, and can collect more sunlight on the liquid light collector 200. For example, sunlight is reflected by the reflecting structure 300 to reach the light-transmitting sidewall 220 of the liquid light collecting device 200, and is finally guided to the first light energy utilization unit 110. Even if the sunlight passes through the liquid light collecting device 200, the sunlight is refracted by the transparent liquid, and thus the sunlight is reflected by the reflecting structure 300 to more easily reach the second light energy utilization unit 120 of the light energy utilization device 100.

[0047] The reflecting structure 300 may be any structure that can be realized to achieve the above functions and effects. Please refer to Figures 1 to 5. In some embodiments, the reflecting structure 300 is a groove-shaped structure having an internal reflective surface for reflecting sunlight to the second light energy utilization unit 120, and the light energy utilization device 100 and the liquid light collecting device 200 are disposed in the groove-shaped structure.

[0048] As shown in Fig. 1, in some embodiments, one side wall of the reflecting structure 300, which is a groove-shaped structure, overlaps with a part of the cavity wall of the liquid collector 200 (the cavity wall on the right side of the liquid collector 200 as shown in the figure), and the other opposing side wall is spaced apart from the liquid collector 200 to form a light reflecting cavity 310. This structure makes the overall structure of the solar energy utilization unit more compact. Also, in some embodiments, when a part of the cavity wall (the cavity wall on the right side of the liquid collector 200 as shown in the figure) is a light-transmitting cavity wall, it can also receive sunlight incident from this side (the right side as shown in the figure).

[0049] In another embodiment, both of the two opposing side walls of the groove-shaped structure are spaced apart from the liquid light-collecting device 200 to form a light-reflecting cavity 310. That is, the light-reflecting cavity 310 is disposed at least on both opposing sides of the liquid light-collecting device 200, so that the coverage of the light-reflecting cavity 310 is enlarged and more sunlight can be incident into the light-reflecting cavity 310.

[0050] Furthermore, the liquid light collecting device 200 may have a regular or irregular shape as long as it can achieve the above-mentioned objectives. Considering that sunlight is incident from above, in order to receive more sunlight, the liquid light collecting device 200 has a structure that is wide at the top and narrow at the bottom, and at least the top wall of the liquid light collecting device 200 is a translucent cavity wall, which allows the sunlight to pass through the top wall and reach the transparent liquid 201.

[0051] Please refer to Figures 1 to 5. In one embodiment, the liquid light collector 200 has a wedge-shaped vertical cross section, and the top wall 210 is larger than the bottom wall 230 to achieve a light collecting effect. Of course, this shape is only an example, and the vertical cross section may have other shapes, such as an inverted triangle, a bowl shape, etc.

[0052] In addition, a light-transmitting cover 400 is further provided to prevent dust and facilitate cleaning. The light-transmitting cover 400 forms a sealed structure together with the reflecting structure 300 and / or the liquid light collecting device 200, and the light energy utilization device 100 is disposed in the sealed structure. Please refer to Figs. 1 to 5. In one embodiment, the reflecting structure 300 is sealed by the light-transmitting cover 400 to form a sealed structure. The light-transmitting cover 400 may be a Fresnel lens surface or other light-transmitting structure.

[0053] Furthermore, in order to expand the sunlight receiving range, in one embodiment, the light energy utilization device 100, the liquid light collecting device 200, and the reflecting structure 300 extend in the same direction to form an elongated shape. For example, the vertical cross sections shown in Figures 1 to 5 extend along a direction perpendicular to the paper surface to form an elongated shape.

[0054] In another aspect, the present invention further provides a combined structure of solar energy utilization units including at least two of the solar energy utilization units shown in any of the above embodiments, which can improve the efficiency of collecting and utilizing sunlight.

[0055] 2 and 3, in some embodiments, the solar energy utilization units are arranged in parallel, and a cavity 501 accommodating a heat-utilizing working medium 503, a secondary battery, and / or a control circuit board is formed between adjacent solar energy utilization units. The heat-utilizing working medium 503 can not only be used for heat conversion and utilization, but also can cool the solar energy utilization unit and improve the conversion efficiency of the solar energy utilization unit.

[0056] As shown in FIG. 4 and FIG. 5, in some embodiments, the solar energy utilization units are arranged in parallel, and the reflecting structures 300 of at least two adjacent solar energy utilization units are connected to each other, and form a cavity 501 with the two adjacent liquid collectors 200. A second liquid collector 600 and a second light energy utilization device 700 are arranged in the cavity 501. The second light energy utilization device 700 has the same structure as the light energy utilization device 100 described above. The second light energy utilization device 700 is arranged facing each other and has a first light energy utilization section 710 and a second light energy utilization section 720. The first light energy utilization section 710 of the second light energy utilization device 700 is arranged facing upward to receive sunlight incident from above. The structure of the second liquid collector 600 is the same as the structure of the liquid collector 200 described above, but which cavity wall is a light-transmitting cavity wall and which cavity wall is a non-light-transmitting cavity wall may be selected based on the actual effect. The second liquid collecting device 600 is disposed below the second light energy utilization device 700. In order to receive the sunlight focused by the second liquid collecting device 600, the second light energy utilization section 720 of the second light energy utilization device 700 faces the second liquid collecting device 600 or is used as a cavity wall of the second liquid collecting device 600. By further adding a second liquid collecting device 600 and a second light energy utilization device 700 between adjacent solar energy utilization units, more sunlight can be collected and utilized, and the light utilization efficiency of the entire combined structure is further improved.

[0057] 4 and 5, the cavity 501 may be a sealed cavity 501. The second liquid light collector 600 may be of any feasible shape or structure. For example, in one embodiment, the second liquid light collector 600 is wide at the top and narrow at the bottom (FIG. 4 is one example). The narrow lower portion of the second liquid light collector 600 is connected to the reflecting structures 300 of the two adjacent solar energy utilization units, forming respective light reflecting cavities 310 with the two adjacent solar energy utilization units.

[0058] See Fig. 4. In one embodiment, a gap is provided between the cavity wall of the second liquid collector 600 and the liquid collectors 200 adjacent to both sides thereof, and a portion of the light reflecting cavity 310 extends to the gap, thereby allowing sunlight to be reflected and reach the second liquid collector 600.

[0059] At this time, in order to be able to receive the sunlight incident through the light reflecting cavity 310, in one embodiment, at least a portion of the cavity wall 620 of the second liquid light collecting device 600 facing the liquid light collecting devices 200 on both sides is a light-transmitting cavity wall.

[0060] In one embodiment, the second liquid collector 600 and the adjacent liquid collectors 200 on either side of it share a cavity wall or the two cavity walls of the adjacent second liquid collector 600 and liquid collector 200 overlap (FIG. 5 is one example). The shared or overlapping cavity wall is a transparent cavity wall or a double-sided reflective cavity wall.

[0061] At this time, in order to receive the sunlight incident through the light reflecting cavity 310, in one embodiment, the cavity wall 620 of the second liquid collector 600 forms the solar energy utilization units and the light reflecting cavity 310 on both sides, respectively, and at least a portion of the cavity wall 620 of the second liquid collector 600 facing the light reflecting cavity 310 is a light-transmitting cavity wall.

[0062] See Fig. 5. In one embodiment, the second liquid collector 600 has a vertical cross section in the shape of an inverted pentagon. By configuring the inverted pentagon structure, the height of the combined structure and the temperature of the light energy utilization device 100 can be significantly reduced.

[0063] In order to transfer and utilize thermal energy and perform heat dissipation, in some embodiments, the second liquid collector 600 and the reflective structures 300 of the solar energy utilization units on both sides are connected in a thermally conductive manner.

[0064] In one embodiment, the liquid concentrators 200 of adjacent solar energy utilization units are separated from each other so that separate cavities are formed, or are within one cavity.

[0065] Based on the above inventive concept, the present invention is further described below through several different embodiments to better illustrate the present invention.

[0066] <Embodiment 1> Please refer to Fig. 1. The first embodiment discloses a solar energy utilization unit C, and Fig. 1 is a schematic vertical cross-sectional view of the solar energy utilization unit C. Note that the vertical and horizontal directions referred to in the first embodiment and other embodiments are all based on the illustrated arrangement direction. When the solar energy utilization device is actually used, the direction may be adjusted according to the topography and latitude and longitude, so the illustrated arrangement direction may differ from the actual arrangement direction of the solar energy utilization device.

[0067] The solar energy utilization unit C includes a light energy utilization device 100, a liquid collector 200, a reflecting structure 300, and a light-transmitting cover 400 (optional). The liquid collector 200 has a sealed structure and forms a sealed containing cavity filled with a transparent liquid 201. The liquid collector 200 has a light-transmitting top wall 210, a light-transmitting side wall 220, and a light-transmitting bottom wall 230. The dashed lines in FIG. 1 indicate that the cavity walls are transparent surfaces.

[0068] The light energy utilization device 100 is disposed below the liquid light collecting device 200, and has an upward-facing first light energy utilization section 110 and a downward-facing second light energy utilization section 120 that can receive, convert, and utilize sunlight. The first light energy utilization section 110 is disposed in close contact with the light-transmitting bottom wall 230 of the liquid light collecting device 200 so that sunlight can pass through the light-transmitting bottom wall 230 and enter the first light energy utilization section 110. In FIG. 1, the light-transmitting bottom wall 230 and the first light energy utilization section 110 are in close contact with each other, and therefore are shown as one unit.

[0069] Of course, in other embodiments, the first light energy utilization part 110 of the light energy utilization device 100 may be used as the bottom wall of the liquid collecting device 200 so that there is no need to separately arrange the light-transmitting bottom wall 230. Alternatively, the first light energy utilization part 110 of the light energy utilization device 100 may be arranged within the accommodation cavity of the liquid collecting device 200.

[0070] Please refer to FIG. 1. The reflecting structure 300 is disposed on the outside and bottom of the elongated liquid light collecting device 200. Between the reflecting structure 300, the liquid light collecting device 200 and the second light energy utilization unit 120, a light reflecting cavity 310 is formed, and the light reflecting cavity 310 has a light inlet for allowing sunlight to enter the reflecting structure 300 of the light reflecting cavity 310. By the reflecting structure 300, a part of the sunlight incident into the light reflecting cavity 310 is reflected to reach the second light energy utilization unit 120, and a part of the sunlight incident into the light reflecting cavity 310 is reflected to reach the light-transmitting side wall 220 of the liquid light collecting device 200, and then enters the inside of the liquid light collecting device 200. Specifically, between the reflecting structure 300 and the elongated liquid light collecting device 200, a gap is provided to form a light inlet of the light reflecting cavity 310.

[0071] Please continue to refer to FIG. 1. In a more specific embodiment, the reflection structure 300 is a groove-shaped structure. The groove-shaped structure has an internal reflective surface for reflecting sunlight to the second light energy utilization unit 120. One sidewall of the groove-shaped structure overlaps with one light-transmitting sidewall 220 of the elongated liquid light collector 200 (the two may overlap or share one wall), and the other opposite sidewall is spaced apart from the reflection structure 300. For example, the illustrated right sidewall of the reflection structure 300 is connected to the illustrated right light-transmitting sidewall 220. The left sidewall is away from the illustrated left elongated liquid light collector 200, and is provided with a light entrance of the reflection structure 300 for sunlight to enter.

[0072] FIG. 1 shows the convergence of two incident lights L1 and L2. The first is a process in which the incident light L1 is refracted by the transparent top wall 210 of the elongated liquid light collecting device 200, and then is totally reflected by the transparent side wall 220 to reach the first light energy utilization unit 110. That is, the light collecting effect is realized by fully utilizing the refraction and total reflection functions of the transparent liquid 201 in the liquid light collecting device 200. That is, the transparent side wall 210 has the following two functions at the same time. First, it transmits the incident light from the outside through one surface, or transmits the light from the transparent liquid 201 to the reflection structure 300. Second, it totally reflects the light from the transparent liquid 201 at one surface. The incident light L2 is reflected by the side of the reflection structure 300, and then is reflected at the bottom of the reflection structure 300 to reach the second light energy utilization unit 120. The transparent liquid 201 may also be used to cool or absorb heat from the light energy utilization device 100 and improve the light energy utilization efficiency of the light energy utilization device 100.

[0073] In order to expand and widen the solar light receiving range of the whole unit, in one embodiment, the light energy utilization device 100, the liquid light collecting device 200 and the reflecting structure 300 extend along the same direction (i.e., the horizontal direction perpendicular to the paper surface of FIG. 1) to form an elongated shape. FIG. 1 shows a vertical cross section at an unspecified position in the extension direction. Of course, the unit may be designed as a simple structure. For example, the vertical cross section at any position in the extension direction of the unit has the shape shown in FIG. 1.

[0074] See Figure 1. For dust and snow protection, the reflective structure 300 is enclosed by a light-transmitting cover 400 to form a structure.

[0075] The first embodiment may be used in situations where light tends to be strong, for example, in high latitude locations, where it can be mounted vertically or horizontally.

[0076] <Embodiment 2> Please refer to Figure 2. The second embodiment provides a combination structure in which a solar energy utilization unit is applied. Figure 2 is a schematic vertical cross-sectional view of the combination structure. Figure 2 shows the situation in which two solar energy utilization units are used together.

[0077] In this combined structure, the solar energy utilization units are arranged in parallel, and a cavity 501 containing a heat-utilizing working medium 503 such as water is formed between two adjacent solar energy utilization units. A heat-utilizing working medium flow pipe 504 for exchanging heat with the outside is arranged in the cavity 501. Furthermore, the cavity 501 may be used to accommodate structures such as a secondary battery and / or a control circuit board, which makes the entire combined structure more compact and the appearance more compact.

[0078] Please refer to Fig. 2. The cavity 501 between two adjacent solar energy utilization units is approximately in the shape of a triangle (isosceles triangle) (this shape is merely an example, and the cavity 501 may be designed in various possible shapes as shown in Figs. 3 to 5), and a sealing member 500 may be provided at the bottom of the cavity 501 to seal the cavity 501. The sealing member 500 can cooperate with the reflective structures 300 of the solar energy utilization units on both sides to jointly form the cavity 501.

[0079] In order to achieve a greater concentration rate, in one embodiment, the opposing cavity walls (e.g., side walls 220') of the liquid collectors 200 of the two solar energy utilization units are configured to have one-sided or two-sided reflective surfaces, thereby preventing sunlight within the liquid collector 200 from penetrating the cavity walls and reaching the outside of the liquid collector 200.

[0080] Furthermore, in order to expand and widen the range of sunlight reception by the entire unit, in one embodiment, the light energy utilization device 100, the liquid light collecting device 200 and the reflecting structure 300 extend along the same direction (i.e., the horizontal direction perpendicular to the paper surface of FIG. 2) to form an elongated shape. FIG. 2 shows a vertical cross section at an unspecified position in the extension direction. Of course, the unit may be designed as a simple structure. For example, the vertical cross section at any position in the extension direction of the unit has the shape shown in FIG. 2.

[0081] <Embodiment 3> As shown in Fig. 3, the third embodiment provides a combined structure to which a solar energy utilization unit is applied, the combined structure including at least two solar energy utilization units according to any of the above embodiments.

[0082] In the third embodiment, the light-transmitting sidewall 220 located outside the liquid light-collecting device 200 (close to the reflecting structure 300) is a folded surface, and the portion 221 close to the light-transmitting bottom wall has a different inclination angle from the other portions and is flatter. In other embodiments, the portion 221 may be steeper. For this purpose, by setting different inclination angles for each portion of the light-transmitting sidewall 220, for example, the light-transmitting sidewall 220 has at least two regions with different inclination angles, a part of the light in the liquid light-collecting device 200 is refracted by the light-transmitting sidewall 220 to reach the reflecting structure 300, and then is focused by the reflecting structure 300 on the second light energy utilization unit 120 of the light energy utilization device 100. The other part of the light is directly focused on the first light energy utilization unit 110 of the light energy utilization device 100 in the form of total reflection by the light-transmitting sidewall 220.

[0083] In the third embodiment, the opposing light-transmitting side walls 220 of the two liquid light collectors 200 are both flat surfaces. In other embodiments, the two light-transmitting side walls 220 may be folded or curved surfaces.

[0084] Between the two solar energy utilization units, a cavity 501 is provided, which can be for example the area between two adjacent reflecting structures 300 or other structures. When illuminated by sunlight, the cavity 501 becomes a high temperature area, where thermal energy can be utilized.

[0085] Please refer to Fig. 3. In the third embodiment, two solar energy utilization units are arranged in parallel with mirror symmetry (non-mirror symmetry may be used in other embodiments), and a cavity sealed by a relatively large sealing member 500 is formed between the reflecting structures 300 of the adjacent solar energy utilization units. A heat-utilizing working medium 503 for transferring thermal energy is accommodated in the cavity 501. A heat-utilizing working medium flow pipe 504 for exchanging heat with the outside is further arranged in the cavity 501.

[0086] In one embodiment, the heat-utilizing working medium 503 is cold water. The combined structure in embodiment 3 can also provide hot water for thermal energy utilization along with power generation.

[0087] <Embodiment 4> As shown in FIG. 4, the fourth embodiment provides a combination structure in which two solar energy utilization units C and C' are applied together.

[0088] Please refer to Fig. 4. The difference between embodiment 4 and embodiment 3 is that the reflecting structures 300 of at least two adjacent solar energy utilization units are connected and form a cavity 501 with two adjacent liquid collectors 200. A second liquid collector 600 and a second light energy utilization device 700 are disposed in the cavity 501. The second light energy utilization device 700 has the same structure as the above-mentioned light energy utilization device 100. The first light energy utilization section 710 of the second light energy utilization device 700 is disposed facing upward in order to receive sunlight incident from above. The second liquid collector 600 is disposed below the second light energy utilization device 700. In order to receive the sunlight focused by the second liquid collecting device 600, the second light energy utilization section 720 of the second light energy utilization device 700 faces the second liquid collecting device 600 or is used as a cavity wall of the second liquid collecting device 600, thereby enabling more sunlight to be collected and utilized, and further improving the light utilization efficiency of the entire combined structure.

[0089] 4, the second liquid collecting device 600 has a structure in which the vertical cross section is an inverted triangle, and has two light-transmitting side walls 620. A second light energy utilization device 700 is disposed on the top of the inverted triangular second liquid collecting device 600. Due to the inverted triangular structure of the second liquid collecting device 600, the height of the combined structure is significantly reduced.

[0090] In one embodiment, the two liquid light collectors 200 and 600 may be integrated by a one-piece molding process or may be manufactured separately and then assembled.

[0091] In one embodiment, the reflecting structures 300 of the two liquid light collectors 200 may also be integrated by a one-piece molding process or manufactured separately and then assembled.

[0092] In the fourth embodiment, the side walls of the two liquid collectors 200 facing the second liquid collector 600 are light-transmitting side walls 220. In other embodiments, a part of the side walls may be configured as a double-sided reflective surface.

[0093] In one embodiment, the second liquid collector 600, which is an inverted triangle, is in thermal contact with the reflecting structure 300 in order to reduce the temperature of the transparent liquid 201 in the two liquid collectors 200 and the light energy utilization device 100.

[0094] <Embodiment 5> As shown in FIG. 5, the fifth embodiment provides a combination structure in which two solar energy utilization units are applied together.

[0095] Please refer to Fig. 5. The difference between embodiment 5 and embodiment 4 is that a second liquid light collecting device 600 having an inverted pentagonal vertical cross section and two light-transmitting side walls 620 is disposed between the two liquid light collecting devices 200. A second light energy utilization device 700 is disposed on top of the second liquid light collecting device 600. Due to the pentagonal structure of the second liquid light collecting device 600, the height of the combined structure is significantly reduced.

[0096] Also, in the fifth embodiment, the two liquid light collectors 200 and the second liquid light collector 600 share a cavity wall or have overlapping cavity walls. The side walls of the two liquid light collectors 200 facing the second liquid light collector 600 (i.e., the shared cavity wall or the overlapping cavity wall) have double-sided reflective surfaces. When the cavity walls overlap, the overlapping cavity wall may be a transparent cavity wall or a double-sided reflective cavity wall. When the overlapping cavity wall is a transparent cavity wall and the same transparent liquid is used for the second liquid light collector and the liquid light collector, the overlapping cavity wall can naturally be omitted, which reduces costs.

[0097] In one embodiment, the two liquid light collectors 200 and 600 may be integrated by a one-piece molding process or may be manufactured separately and then assembled.

[0098] Similarly, the reflecting structures 300 of the two liquid light collectors 200 may be integrated by a one-piece molding process or may be manufactured separately and then assembled.

[0099] In one embodiment, the second liquid collector 600 and the reflecting structure 300 are in thermal contact for the purposes of heat dissipation and thermal conduction.

[0100] Here, the pentagon is merely a rough shape, as the second liquid collector 600 may be any other polygonal shape depending on the needs of thermal contact, hydraulic deformation, or other considerations.

[0101] Although the present invention has been described in detail above using specific examples, the above embodiments are merely for the purpose of deepening understanding of the present invention and are not intended to limit the present invention. Those skilled in the art can modify the above specific embodiments based on the concept of the present invention.

Claims

1. A solar energy utilization unit including a light energy utilization device, a liquid concentrating device, and a reflecting structure, The light energy utilization device has a first light energy utilization unit and a second light energy utilization unit arranged opposite each other, and the first light energy utilization unit and the second light energy utilization unit are capable of receiving, converting, and utilizing sunlight, the liquid light collecting device has a storage cavity filled with a transparent liquid, the storage cavity has a light-transmitting cavity wall, the sunlight can reach the transparent liquid by passing through the light-transmitting cavity wall, the light energy utilization device is disposed inside or outside the storage cavity, or forms a cavity wall of the storage cavity, the first light energy utilization part is disposed facing the liquid light collecting device or the transparent liquid, and the liquid light collecting device is formed as a structure capable of transmitting the sunlight to the first light energy utilization part and / or totally reflecting the sunlight, A solar energy utilization unit characterized in that a light inlet for allowing sunlight to enter is provided between the reflective structure and the liquid light collecting device, and a light reflecting cavity connected to the light inlet is formed between the reflective structure, the second light energy utilization section, and the liquid light collecting device, and sunlight entering the light reflecting cavity can be reflected by the reflective structure and reach the second light energy utilization section.

2. The solar energy utilization unit according to claim 1, characterized in that the light reflecting cavity is arranged in contact with at least one side of the liquid concentrating device and the light energy utilization device and below the second light energy utilization section.

3. The solar energy utilization unit described in claim 1, characterized in that the reflective structure is a groove-shaped structure having an internal reflective surface for reflecting sunlight to the second light energy utilization section, and the light energy utilization device and the liquid concentrating device are arranged within the groove-shaped structure.

4. The solar energy utilization unit described in claim 3, characterized in that one side wall of the groove-shaped structure overlaps a portion of the cavity wall of the liquid concentrator, and the other opposing side wall is spaced from the liquid concentrator, forming the light-reflecting cavity.

5. 5. The solar energy utilization unit according to claim 4, wherein a portion of the cavity wall is a light-transmitting cavity wall.

6. The solar energy utilization unit according to claim 3 , wherein the two opposing side walls of the groove-shaped structure are both spaced apart from the liquid light concentrating device to form the light reflecting cavity.

7. A solar energy utilization unit described in any one of claims 1 to 6, characterized in that the cavity wall of the liquid concentrating device facing the light-reflecting cavity is a light-transmitting cavity wall, a single-sided reflective cavity wall or a double-sided reflective cavity wall.

8. The solar energy utilization unit according to any one of claims 1 to 7, characterized in that the liquid collector has a structure that is wider at the top and narrower at the bottom, and at least a top wall of the liquid collector is a translucent cavity wall, thereby allowing sunlight to pass through the top wall and reach into the transparent liquid.

9. A solar energy utilization unit as described in any one of claims 1 to 8, further comprising a translucent cover, the translucent cover forming an enclosed structure together with the reflective structure and / or the liquid collecting device, and the light energy utilization device being disposed within the enclosed structure.

10. 10. The solar energy utilization unit according to claim 1, wherein the light energy utilization device, the liquid concentrating device and the reflecting structure extend in the same direction to form an elongated shape.

11. A combined structure of solar energy utilization units comprising at least two of the solar energy utilization units according to any one of claims 1 to 10.

12. The combination structure described in claim 11, characterized in that the solar energy utilization units are arranged in parallel, and a cavity accommodating a heat-utilizing working medium, a secondary battery and / or a control circuit board is formed between adjacent solar energy utilization units.

13. The combination structure according to claim 11, characterized in that the solar energy utilization units are arranged in parallel, the reflective structures of at least two adjacent solar energy utilization units are connected, and a cavity is formed with the two adjacent liquid collecting devices, a second light energy utilization device and a second liquid collecting device located below the second light energy utilization device are arranged in the cavity, the second light energy utilization device has a first light energy utilization section and a second light energy utilization section arranged facing each other, the first light energy utilization section of the second light energy utilization device is arranged facing upward to receive sunlight incident from above, and the second light energy utilization section of the second light energy utilization device faces the second liquid collecting device to receive sunlight focused by the second liquid collecting device, or is used as a cavity wall of the second liquid collecting device.

14. The combination structure described in claim 13, characterized in that the second liquid collector is wider at the top and narrower at the bottom, and the narrower lower portion of the second liquid collector is connected to the reflective structures of two adjacent solar energy utilization units, thereby forming respective light reflective cavities with the two adjacent solar energy utilization units.

15. The combination structure according to claim 14, characterized in that a gap is provided between the cavity wall of the second liquid collecting device and the liquid collecting devices adjacent to both sides thereof, and a portion of the light reflecting cavity extends to the gap.

16. 16. The combination structure according to claim 14 or 15, wherein at least a part of the cavity wall of the second liquid collector facing the liquid collectors on both sides is a light-transmitting cavity wall.

17. The combination structure of claim 13, characterized in that the second liquid collecting device and the adjacent liquid collecting device on both sides share a cavity wall, or the two cavity walls of the adjacent second liquid collecting device and the liquid collecting device overlap, and the shared or overlapping cavity wall is a transparent cavity wall or a double-sided reflective cavity wall.

18. The combination structure described in claim 13, characterized in that the cavity wall of the second liquid concentrating device and the solar energy utilization units on both sides each form the light reflecting cavity, and at least a portion of the cavity wall of the second liquid concentrating device facing the light reflecting cavity is a light-transmitting cavity wall.

19. The combination structure according to claim 13, wherein the second liquid light collecting device and the reflecting structures of the solar energy utilization units on both sides are connected in a thermally conductive manner.

20. The combination structure according to claim 11, characterized in that the liquid concentrators of adjacent solar energy utilization units are separated from each other so as to form separate cavities or are within one cavity.

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