JP3234404U - Solar energy utilization device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar energy utilization device capable of receiving more sunlight by an optical energy converter and improving light energy utilization efficiency. SOLUTION: The solar energy utilization device includes a condensing device 100 and a light energy utilization device 200, and the light energy utilization device is located in the condensing device. There are at least two photoenergy converters 210, which are staggered so that some photoenergy converters are farther away from the concentrator opening 101 than other photoenergy converters and inside the concentrator. Close to, a light entry area is left between the light energy utilization device and the edge of the opening, allowing sunlight to enter the light collector from the light entry area. The light energy converter has a first operating unit and a second operating unit provided so as to face each other, and can absorb and utilize sunlight from both the front and back surfaces. The number of light energy converters is increased, the light energy converters are arranged so as to be provided alternately, and the light collecting action of the light collecting device is added. [Selection diagram] Fig. 1

Description

The present invention relates to a light energy conversion utilization device.

Solar energy systems are being used more and more as the cost and efficiency of solar panels increase. However, with the widespread use of solar energy systems, the related issues are endless, such as increased land costs, power plant maintenance (including dust cleaning and snow removal) costs and solar. There is a problem that it is difficult to collect the panel.

The present invention mainly provides a new type of solar energy utilization device.

In one embodiment of the present invention, the solar energy utilization device is
A condensing device that has a groove shape, an opening, and a light reflecting surface on the inner wall.
An optical energy utilization device having at least two optical energy converters having a first operating unit and a second operating unit, which is located inside the condensing device, and the first operating unit collects light. It is provided toward the inner wall of the light device and can absorb the sunlight reflected from the inner wall, and the second operating portion is provided so as to turn its back to the inner wall and face outward toward the opening. It is possible to absorb sunlight incident from the opening direction of the condensing device, the at least two light energy converters are provided alternately, and some light energy converters are other light energy converters. A light entering region is left between the light energy utilization device and the edge of the opening, and sunlight is emitted from the light entering region of the condensing device. Includes a light energy utilization device that allows you to get inside.

The solar energy utilization device of the above embodiment includes a condensing device and a light energy utilization device. This light energy utilization device is located in the condensing device. There are at least two of these optical energy converters, and at least two optical energy converters are provided alternately, and some optical energy converters have more condensing device openings than other optical energy converters. Close to the interior of the condensing device, leaving an incoming light area between the light energy utilization device and the edge of the opening, allowing sunlight to enter the condensing device from the light entering area. .. This light energy converter has a first operating unit and a second operating unit provided so as to face each other, and can absorb and utilize sunlight from both the front and back surfaces. By increasing the number of light energy converters, arranging at least two light energy converters in a staggered manner, and adding the condensing action of the condensing device, the light energy converters can receive more sunlight. As a result, the efficiency of light energy utilization is improved.

It is a longitudinal sectional schematic diagram of the solar energy utilization apparatus by one Embodiment of this invention. It is a longitudinal sectional schematic diagram of the solar energy utilization apparatus by another embodiment of this invention. It is a longitudinal sectional schematic diagram of the solar energy utilization apparatus according to still another embodiment of this invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings according to specific embodiments. Similar reference numerals are adopted for similar devices in different embodiments. In the following embodiments, many detailed descriptions are intended to help you better understand the present invention. However, one of ordinary skill in the art can readily recognize that some features can be omitted in various situations or replaced with other elements, materials and methods. In some cases, some relevant operations of the present invention are not shown or described in the specification, which means that the core part of the present invention is buried by overstatement. This is to avoid it. A person skilled in the art does not need a detailed description of these related operations, and the description in the specification and general technical knowledge in the art will give a complete understanding of the related operations.

It should be noted that the features, operations or features described herein can be combined with any suitable embodiment to form various embodiments. Also, each step or action in the description of the method can be reordered or adjusted in a manner obvious to those skilled in the art. As such, the various sequences in the specification and drawings are intended only to articulate an embodiment and imply a mandatory sequence unless it is stated that the order must be adhered to. is not it.

Part numbers in the text, such as "first" and "second", are only used to distinguish the objects described and have no order or technical meaning. Unless otherwise specified, the "connection" described in the present invention includes both direct and indirect connections.

The present invention provides a solar energy utilization device used for conversion of solar energy, for example, for photoelectric conversion and photothermal conversion.

As shown in FIGS. 1 to 3, this solar energy utilization device includes a condensing device 100 and a light energy utilization device 200. The light collecting device 100 has a groove shape and has an opening 101. The opening 101 is provided facing the sun so that it can receive sunlight. The inner wall 110 of the condensing device 100 has a light reflecting surface for reflecting sunlight on the light energy utilization device 200. Of course, in some embodiments, the entire inner wall 110 may be provided as a light reflecting surface. In some other embodiments, the light reflecting surface may be only part of the inner wall 110.

The light energy utilization device 200 is located in the condensing device 100 and has at least two light energy converters 210. Each light energy converter 210 has a first operating unit and a second operating unit. This light energy converter can be various devices capable of converting sunlight, and has one or more kinds of light energy conversion modules such as photoelectric conversion and photothermal conversion. In one embodiment, the first operating unit is a photoelectric conversion device or a photothermal conversion device, and the second operating unit is a photoelectric conversion device or a photothermal conversion device.

The first operating unit is provided toward the inner wall 110 of the condensing device 100, and can absorb the sunlight reflected from the inner wall 110. The second operating unit is provided outward with the back to the inner wall 110 toward the opening 101, and can absorb sunlight incident from the direction of the opening 101 of the condensing device 100.

In one embodiment, the light energy converters 210 are staggered. As shown in FIGS. 1 to 3, some light energy converters 210 are closer to the inside of the condensing device 100 than the other light energy converters 210, away from the opening 101. An incoming light region is left between the light energy utilization device 200 and the edge of the opening 101 so that sunlight can enter the light collecting device 100 from the light entering region. The sunlight reflected by the inner wall 110 of the condensing device 100 may be in various directions, and the alternately provided method increases the range of light received by the light energy converter 210, and the light energy converter 210 receives light. The 210 can absorb more reflected light in different directions, increases the amount of sunlight received by the light energy converter 210, and improves the light energy utilization efficiency of the light energy converter 210.

As shown in FIGS. 1 to 3, in one embodiment, the light energy converter 210 is a double-sided solar panel, that is, whether the first operating unit and the second operating unit are both solar panels. Alternatively, the first operating unit and the second operating unit are two surfaces of the solar panel that are exposed to light on both sides, respectively. A solar panel refers to any device that directly converts light energy into electrical energy, and includes various semiconductor solar panels, thin-film solar cells, quantum dot solar cells, and the like.

In another embodiment, the optical energy utilization device 200 may simultaneously have an endothermic medium (water, molten salt, etc.) for absorbing the thermal energy of sunlight, in addition to including the double-sided solar panel. The light energy utilization device 200 can be used not only for power generation but also as thermal energy. The light energy utilization device 200 may have a transparent container, and the endothermic medium may be provided in the transparent container.

In another embodiment, the light energy converter 210 may have one surface as a photoelectric conversion device and the other surface as a photothermal conversion device. Alternatively, both sides of the light energy converter 210 are photothermal converters or other devices.

In order to further increase the concentration of sunlight, in one embodiment, between adjacent light energy converters 210, the sunlight is transferred to the light energy converter 210 and / or the inner wall, as shown in FIGS. It is connected by a double-sided reflective member 220 that reflects on the 110. The double-sided reflecting member 220 reflects sunlight and reflected light that cannot reach the light energy converter 210 more, and then reflects the light directly or through the inner wall 110 of the condensing device 100 or the like. After that, the light energy converter 210 is irradiated to further increase the absorption of sunlight by the light energy converter 210.

In one relatively specific embodiment, as shown in FIGS. 1-3, it has at least three light energy converters 210 arranged in a triangle. One of the light energy converters 210 is located at the opening 101, and the other two light energy converters 210 are inside the condensing device 100. Of these three light energy converters 210, the back surface of the central light energy converter 210 collects more sunlight on the double-sided reflective members 220 on both sides, and the light energy utilization efficiency of the light energy converter 210. Can be improved. Under the same light energy utilization efficiency, the light receiving area of the entire three light energy converters 210 is further reduced, and the cost is further reduced.

In one relatively specific embodiment, as shown in FIGS. And any of the light transmitting members is provided, and the three light energy converters 210 and the corresponding double-sided reflecting member 220 or the light transmitting member form a W shape. In this configuration, the first operating unit or the second operating unit of each light energy converter 210 can form a light guide structure that opens outward, and more sunlight can be first emitted. It can be collected in the moving part of the above or the second moving part, and the light energy utilization efficiency is further improved. Of course, in other embodiments, these light energy converters 210 may form staggered structures of other shapes.

In order to correspond to the configuration of the W-shaped light energy converter 210, in one embodiment, as shown in FIG. 1, the bottom wall 120 of the condensing device 100 may form a corresponding W-shaped structure. good. Of course, in another embodiment, the condensing device 100 may be an ordinary concave groove, the groove surface may be a curved surface, or may be composed of a plurality of folded surfaces, and the inner wall may be W-shaped. Reflective member may be provided.

The light energy utilization device 200 is usually located in the opening 101 of the condensing device 100, and as shown in FIGS. 1 to 3, in one embodiment, the light energy utilization device 200 is the opening of the condensing device 100. Located in the center of the 101, on both sides of the light energy utilization device 200, light entry regions are formed between the edges of the opening 101, and sunlight is collected from both sides of the light energy utilization device 200 in the condensing device 100. Allows entry and increases the amount of light entering. In particular, as shown in FIGS. 1 and 3, when the condensing device 100 is provided so that the opening 101 faces upward, sunlight can be more easily put into the condensing device 100 by the light entering regions on both sides thereof. can.

In one embodiment, the light energy utilization device 200 is usually located in the center of the opening 101 of the condensing device 100, and the entire solar energy utilization device exhibits a generally symmetrical structure. Of course, this solar energy utilization device does not necessarily have to form a symmetrical structure, and in other embodiments, it may exhibit an asymmetrical structure.

Of course, in some embodiments, the light collector 100 may be provided vertically or diagonally and its opening 101 may be provided laterally. At this time, one side of the light energy utilization device 200 is connected to the one side edge of the opening 101 of the light collecting device 100, and the other side of the light energy utilization device 200 and the other side edge of the opening 101. Form an incoming light region with and. As shown in FIG. 2, preferably, sunlight is incident from diagonally above, so that the lower side of the light energy utilization device 200 is connected to the lower edge of the opening 101 of the light energy utilization device 100 to utilize the light energy. An incoming light region is formed between the upper side of the device 200 and the upper edge of the opening 101. This is convenient for receiving sunlight.

Further, as compared with the light collecting action of the simple light collecting device 100, more sunlight can be collected toward the light energy utilization device 200 by adding the light guide member. As shown in FIGS. 1 and 2, in one embodiment, a light guide member 300 for guiding sunlight to the inner wall 110 of the light energy utilization device 200 and / or the light condensing device 100 is provided in the light entry region. ..

As shown in FIGS. 1 and 2, in one embodiment, the light guide member 300 has a first light reflecting surface and a second light reflecting surface. The first light reflecting surface is provided toward the inner wall 110 to reflect sunlight on the light reflecting surface of the inner wall 110, and further reflects sunlight from the light reflecting surface of the inner wall 110 to the light energy utilization device 200. Used. The second light reflecting surface is provided toward the light energy utilization device 200 and is used to reflect sunlight to the light energy utilization device 200 or the double-sided reflection member 220. Of course, in some embodiments, the light guide member 300 may be a single-sided light reflecting member or a lens capable of refracting sunlight.

In one embodiment, the light guide member 300 adjusts its angle according to the latitude situation so that sunlight entering from above can reach the light energy utilization device 200 by one or a plurality of reflections. It is possible to do.

In another embodiment, the light guide member 300 may use a refraction method to guide sunlight. For example, in one embodiment, the light guide member 300 is a lens (such as a Fresnel lens) that can refract sunlight into at least one of an inner wall 110, a light energy converter 210, and a double-sided reflective member 220.

Further, as shown in FIGS. 1 to 3, a light transmitting cover 400 is further included in one embodiment in order to perform a function of preventing dust and facilitating cleaning. The light transmitting cover 400 covers the opening 101 and forms a closed mounting cavity together with the condensing device 100. The light energy utilization device 200 is mounted in the mounting cavity.

In one embodiment, the light transmissive cover 400 may be ordinary clear glass, plastic, Fresnel condensing lens or other light transmissive material.

Further, as shown in FIG. 3, in one embodiment, the sealed mounting cavity is filled with a transparent liquid 500 for cooling, and the light energy utilization device 200 is at least partially a transparent liquid 500. Soaked in. The transparent liquid 500 can lower the temperature of the light energy utilization device 200 and the condensing device 100 as a refrigerant.

In another embodiment, a closed cavity is formed between the at least two adjacent light energy converters 210, and the cavity is filled with a clear liquid 500 for cooling. As shown in FIG. 1, one cooling cavity is surrounded between the three light energy converters 210 and the light transmission cover 400 in this embodiment, specifically below the central light energy converter 210. A transparent member 230 is provided so as to surround one cooling cavity. A transparent liquid 500 for cooling is contained in this cooling cavity. In another embodiment, the light energy converter 210 may be open type or may not be provided with the transparent liquid 500.

The transparent liquid 500 may be water, a transparent coolant from which freezing is prevented (salt water, a mixed solution of water and alcohol, etc.), or the like, and the transparent liquid 500 is the temperature of the light energy utilization device 200. By lowering, the photoelectric conversion efficiency of the solar panel can be improved.

As shown in FIG. 1, in another embodiment, the light transmitting cover 400 is further included, and the light transmitting cover 400 covers the opening 101. Of the three light energy converters 210 arranged in a triangle, both ends of the light energy converter 210 located in the center are connected to the light energy converters 210 on both sides via a double-sided reflecting member 220, and are located on both sides. The outer ends of the two light energy converters 210 are connected to a light transmitting member (the two double-sided reflecting members 220 on both sides in FIG. 1 are replaced with light transmitting members). A light transmitting cover 400, three light energy converters 210, a light transmitting member and two central double-sided reflecting members 220 form a closed cavity and are added as needed to close the open space during cavity formation. Auxiliary connecting components such as end covers may be further included. The cavity is filled with a transparent liquid 500. In this embodiment, the light radiated to the transparent devices at both ends may be refracted to the front side of the two outer light energy converters 210 due to total reflection on the inner wall 110 of the condensing device 100. After being transmitted, it may be reflected by the inner wall 110 to the backside of the three light energy converters 210.

On the other hand, in one embodiment, the first operating unit and the second operating unit are solar panels, the optical energy utilization device 200 further includes a photothermal conversion device, and the photothermal conversion device is of sunlight. It is used to absorb and utilize heat. For example, in one embodiment, the transparent liquid 500 may be used to form a photothermal converter, for example, the transparent liquid 500 directly or indirectly circulates heat with an external cold water pipe (not shown). Therefore, heat utilization can be realized.

Among the above-mentioned various parts, the light reflecting surface may employ a reflecting mirror, a reflective Fresnel lens, or the like, but is not limited thereto. These light reflecting surfaces may be a folded surface, a curved surface, a flat surface, a deformed surface, or the like. Of the above components, the light transmitting structure may employ an ordinary light transmitting material and a lens (Fresnel lens or the like), but is not limited thereto.

Since the condensing device 100 is added to this solar energy utilization device, the condensing effect can be improved, that is, the light receiving surface area (that is, the area of the opening 101 in the condensing device 100) and the light energy utilization device. At 200, the ratio to the area that absorbs sunlight can be increased. In particular, when the light guide member 300 is provided, the opening 101 of the light collecting device 100 is further enlarged, and the light collecting effect can be further enhanced.

Although the present invention has been described above using specific examples, it is merely for assisting the understanding of the present invention and not for limiting the present invention. One of ordinary skill in the art can make some simple modifications, changes or replacements according to the concept of the present invention.

Claims (10)

A condensing device that has a groove shape, an opening, and a light reflecting surface on the inner wall.
It is a light energy utilization device located inside the light collecting device, and has at least two light energy converters, and each of the light energy converters has a first operating unit and a second operating unit. The first operating unit is provided toward the inner wall of the condensing device and can absorb the sunlight reflected from the inner wall, and the second operating unit is on the inner wall. It is provided with its back facing outward toward the opening, can absorb sunlight incident from the opening direction of the concentrator, and the at least two light energy converters are provided alternately. In some light energy converters, the light energy converter is farther from the opening and closer to the inside of the condensing device than other light energy converters, and an incoming light region is provided between the light energy utilization device and the edge of the opening. A solar energy utilization device that is left behind and includes a light energy utilization device that allows sunlight to enter the condensing device from the light entry region. The solar energy utilization device according to claim 1, wherein the adjacent light energy converters are connected by the light energy converter and / or a double-sided reflecting member that reflects sunlight on the inner wall. .. It has at least three light energy converters arranged in a triangle, one of which is located in the aperture and the other two light energy converters of the concentrator. The solar energy utilization device according to claim 2, wherein the solar energy utilization device is inside. Either a double-sided reflecting member or a light transmitting member is provided at both ends of each of the three light energy converters arranged in a triangle, and the three light energy converters and the light energy converters thereof. The solar energy utilization device according to claim 3, wherein a W shape is formed by a corresponding double-sided reflecting member or a light transmitting member. A light transmitting cover is further included, the light transmitting cover covers the opening, and both ends of the light energy converter located in the center of the three light energy converters arranged in a triangle are double-sided reflective members, respectively. The outer ends of the two light energy converters located on both sides are connected to a light transmitting member, and the light transmitting cover and the three light energy conversions are connected to the light energy converters on both sides. The solar energy utilization device according to claim 4, wherein a closed cavity is formed by a vessel, a light transmitting member, and a double-sided reflecting member, and the inside of the cavity is filled with a transparent liquid. The solar energy utilization device according to claim 1, wherein the inner wall of the condensing device has a W shape, or the inner wall is provided with a W-shaped reflecting member. The light energy utilization device is located in the center of the opening of the light energy utilization device, and the light entry region is formed on both sides of the light energy utilization device with the edge of the opening, respectively. ,
One side of the light energy utilization device is connected to the one side edge of the opening of the concentrator, between the other side of the light energy utilization device and the other side edge of the opening. The solar energy utilization device according to claim 1, wherein the light entering region is formed. The solar energy utilization device according to claim 1, wherein a light guide member for guiding sunlight to the inner wall of the light energy utilization device and / or a condensing device is provided in the light entry region. A light transmitting cover is further included, the light transmitting cover covers the opening and forms a closed mounting cavity together with the condensing device, and the light energy utilization device is mounted inside the mounting cavity and said mounting. The solar energy utilization according to claim 1, wherein the inside of the cavity is filled with a transparent liquid for cooling, and at least a part of the light energy utilization device is immersed in the transparent liquid. Device. The solar energy utilization according to claim 1, wherein a closed cavity is formed between at least two adjacent light energy converters, and the inside of the cavity is filled with a transparent liquid for cooling. Device.

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