WO2022178826A1

WO2022178826A1 - Solar energy utilization device

Info

Publication number: WO2022178826A1
Application number: PCT/CN2021/078125
Authority: WO
Inventors: 胡笑平
Original assignee: 博立码杰通讯(深圳)有限公司
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2022-09-01

Abstract

A solar energy utilization device, comprising a light energy utilization device and a strip-shaped liquid light concentration device. The strip-shaped liquid light concentration device is filled with transparent liquid; sunlight can be transmitted into the transparent liquid from a light-transmitting cavity wall of the strip-shaped liquid light concentration device, and a total reflection phenomenon is formed, such that more sunlight is converged on a first light energy utilization portion, thereby improving the light gathering efficiency. Moreover, the strip-shaped liquid light concentration device extends in the longitudinal direction thereof and is in a strip shape, and has a polygonal cross section; the number of edges of the polygon is greater than or equal to four, such that a larger area and light-transmitting cavity walls at different inclination angles can be formed to adapt to the deflection angle of larger incident light, and more sunlight can be received.

Description

solar energy utilization device

technical field

The present application relates to a light energy conversion and utilization device.

Background technique

As the cost of photovoltaic panels decreases and the efficiency increases, solar energy systems are increasingly used. However, with the widespread application of solar energy systems, related problems also follow, such as the increase of land cost, the problem of light energy utilization efficiency, the cost problem and the difficulty of recycling photovoltaic panels.

technical problem

This application mainly provides a novel solar energy utilization device to demonstrate a new solar energy utilization structure.

technical solutions

Based on the above purpose, an embodiment of the present application provides a solar energy utilization device, characterized in that it includes:

a light energy utilization device, the light energy utilization device has a first light energy utilization part capable of receiving and converting sunlight;

and a strip-shaped liquid concentrating device, the strip-shaped liquid concentrating device is arranged in a strip shape along its longitudinal extension, the strip-shaped liquid concentrating device has several cavity walls, and the cavity walls enclose a accommodating cavity, so the The cross section of the strip-shaped liquid light concentrating device is a polygon, and the sides of the polygon are greater than or equal to four; the accommodating cavity is filled with transparent liquid, and at least part of the cavity wall is a light-transmitting cavity wall, and the first The light energy utilization part is arranged in the accommodating cavity, outside the accommodating cavity or forming the cavity wall of the accommodating cavity, in the accommodating cavity the sunlight emitted from the transparent liquid to at least part of the light-transmitting cavity wall A phenomenon of total reflection is formed, and the sunlight is concentrated on the first light energy utilization part.

In an embodiment, the cross-sections of each part of the strip-shaped liquid concentrating device are the same.

In one embodiment, at least one of the light-transmitting cavity walls is a flat surface, a curved surface or a Fresnel lens tooth surface.

In one embodiment, the strip-shaped liquid concentrating device is provided with a first light guide member, and the first light guide member guides sunlight to the first light energy utilization part.

In one embodiment, the first light guide member is a Fresnel lens, an inverted transparent hollow strip cone or an inverted transparent hollow strip cone frustum established vertically with respect to the light energy utilization device.

In an embodiment, a second light guide member is further included, and the second light guide member is arranged on the outer side of the strip-shaped liquid light concentrating device, and is used for guiding sunlight to the strip-shaped liquid light concentrating device.

In one embodiment, the second light guide member is a reflective member disposed on one side or both sides of the strip-shaped liquid light-concentrating device, and the reflective surface of the light-reflecting member faces the strip-shaped liquid light-concentrating device.

In one embodiment, the second light guide member is fixedly connected to a strip-shaped liquid light concentrating device or a light energy utilization device, and the second light guide member has a hanging lug for installing the solar energy utilization device.

In an embodiment, the solar energy utilization device includes multiple groups of sub-devices, each group of the sub-devices respectively has the strip-shaped liquid concentrating device and the light energy utilization device, and the strip-shaped liquid concentrating device of adjacent sub-devices There are gaps between the devices in which the batteries are placed.

In an embodiment, it also includes a closed container, the light energy utilization device and the strip-shaped liquid concentrating device are arranged in the closed container, and the closed container has a light-transmitting surface, so that the sunlight can pass from the The light-transmitting surface is injected into the strip-shaped liquid concentrating device, and a working medium is arranged in the closed container, and the working medium is in contact with the light energy utilization device.

In an embodiment, the strip-shaped liquid concentrating device communicates with the closed container, the working medium is the same transparent liquid as that in the strip-shaped liquid concentrating device, and the transparent liquid covers the strip-shaped liquid concentrating device. Liquid concentrator.

In one embodiment, the strip-shaped liquid concentrating device is closed and disposed, and the closed container has a first external interface for the working medium to enter and exit the closed container to utilize the working medium.

In an embodiment, it further includes a third light guide member, the third light guide member has a accommodating cavity, the accommodating cavity has a reflective side wall and a reflective bottom wall, and the light energy utilization device has a a second light energy utilization part facing away from the light energy utilization part, the second light energy utilization part is disposed facing the reflective bottom wall, and the reflective side wall and the reflective bottom wall reflect part of the sunlight to the second light Department is available.

In an embodiment, it further includes a third light guide member, the third light guide member has a accommodating cavity, the accommodating cavity has a reflective side wall and a reflective bottom wall, and the light energy utilization device has a The second light energy utilization part with the light energy utilization part away Reflected to the first light energy utilization part and the strip-shaped liquid concentrating device, the second light energy utilization part is disposed away from the light-reflecting bottom wall.

In an embodiment, a transparent member is provided on the outer side of the first light energy utilization part and/or the second light energy utilization part.

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

In one embodiment, the third light guide member has a light-transmitting cover, and the light-transmitting cover, the light-reflecting side wall and the light-reflecting bottom wall enclose a sealed accommodation cavity.

In an embodiment, it further includes a second strip-shaped liquid light-concentrating device, the second strip-shaped liquid light-concentrating device is arranged on the outer side of the second light energy utilization part, and directs the sunlight to the first or the second light energy utilization part. Two light energy utilization part guide.

In an embodiment, the strip-shaped liquid light concentrating device and/or the second strip-shaped liquid light concentrating device is provided with a second external interface for the transparent liquid to enter and exit.

In an embodiment, the cross-section of the strip-shaped liquid concentrating device is a pentagon or a quadrilateral.

beneficial effect

The solar energy utilization device according to the above embodiments includes a light energy utilization device and a strip-shaped liquid concentrating device. The strip-shaped liquid concentrating device is filled with transparent liquid, and sunlight can be transmitted from the light-transmitting cavity wall of the strip-shaped liquid concentrating device into the transparent liquid, and a total reflection phenomenon is formed, so that more sunlight can be directed to the first light. The upper part can be used for condensing to improve the condensing efficiency. At the same time, the strip-shaped liquid concentrating device is arranged in a strip shape along its longitudinal extension, and has a polygonal cross-section, and the sides of the polygon are greater than or equal to four, so as to form a light-transmitting cavity wall with a larger area and different inclination angles , to adapt to a larger deflection angle of incident light and receive more sunlight.

Description of drawings

FIG. 1 is a schematic cross-sectional view of a solar energy utilization device in a first embodiment of the present application.

FIG. 2 is a schematic cross-sectional view of a solar energy utilization device in a second embodiment of the present application.

FIG. 3 is a schematic cross-sectional view of a solar energy utilization device in a third embodiment of the present application, which can be installed in a high-latitude area in a flat-lying manner.

4 is a schematic cross-sectional view of a solar energy utilization device in a fourth embodiment of the present application, which shows a double-sided light-concentrating structure.

5 is a schematic cross-sectional view of a solar energy utilization device in a fifth embodiment of the present application, which shows a structure in which the first light energy utilization portion and the strip-shaped liquid concentrating device are disposed downward.

6 is a schematic cross-sectional view of a solar energy utilization device in a sixth embodiment of the present application, which shows a structure in which the solar energy utilization device has a strip-shaped liquid concentrator on both sides of the solar energy utilization device.

Embodiments of the present invention

The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments have used associated similar element numbers. In the following embodiments, many details are described so that the present application can be better understood. However, those skilled in the art will readily recognize that some of the features may be omitted under different circumstances, or may be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application from being overwhelmed by excessive description, and for those skilled in the art, these are described in detail. The relevant operations are not necessary, and they can fully understand the relevant operations according to the descriptions in the specification and general technical knowledge in the field.

Additionally, the features, acts, 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 description can also be exchanged or adjusted in order in a manner obvious to those skilled in the art. Therefore, the various sequences in the specification and drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a necessary order unless otherwise stated, a certain order must be followed.

The serial numbers themselves, such as "first", "second", etc., for the components herein are only used to distinguish the described objects, and do not have any order or technical meaning. The "connection" and "connection" mentioned in this application, unless otherwise specified, include both direct and indirect connections (connections).

The positional relationship between upper and lower in this article is relative and does not have absolute meaning.

This embodiment provides a solar energy utilization device, which is used for receiving and utilizing sunlight for energy conversion, and converting the sunlight into electrical energy, thermal energy and other forms of energy for people to use.

The solar energy utilization device shown in this embodiment includes at least one light energy utilization device and at least one strip-shaped liquid concentrating device. The light energy utilization device has a first light energy utilization part capable of receiving and converting sunlight. In an embodiment, the first light energy utilization part and other light energy utilization parts (such as the second light energy utilization part in the following) can be photovoltaic panels, photothermal utilization devices, photoelectric and thermal energy comprehensive utilization devices, concentrators, etc. One or more of the light energy utilization devices. The photovoltaic panel generally refers to any device that directly converts light energy into electrical energy, including various semiconductor photovoltaic panels, photovoltaic thin films, quantum dot photoelectric conversion devices, and the like. In other embodiments, the first light energy utilization part may also be other forms of sunlight utilization conversion structures.

The strip-shaped liquid concentrating device is arranged in a strip shape along its longitudinal extension. The strip-shaped liquid light-concentrating device has several cavity walls, and these cavity walls enclose an accommodating cavity, and the accommodating cavity is filled with transparent liquid. At least a part of these cavity walls are light-transmitting cavity walls, for example, all of them may be light-transmitting cavity walls. The light-transmitting cavity wall can be designed as a bottom wall, a side wall or a top wall of the accommodating cavity according to actual requirements. The light-transmitting cavity walls are all made of light-transmitting materials, and sunlight can be transmitted from the light-transmitting cavity walls to the transparent liquid. The first light energy utilization part is arranged in the accommodating cavity, outside the accommodating cavity or forming a cavity wall of the accommodating cavity. Wherein, the structure of the strip-shaped liquid concentrating device is set as follows: the sunlight emitted from the transparent liquid to the light-transmitting cavity wall forms a phenomenon of total internal reflection (or total internal reflection), that is, the sunlight that is reflected into part or all of the transparent liquid The sunlight will not or most of it will not be emitted from the light-transmitting sidewall, but will continue to propagate in the strip-shaped liquid concentrating device under the action of total reflection, and finally be collected on the first light energy utilization part.

According to the different positions of the first light energy utilization parts, the light-transmitting cavity walls that can form the total reflection phenomenon are also different. When the first light energy utilization part is arranged in the accommodating cavity or constitutes the cavity wall of the accommodating cavity, part or all of the light-transmitting cavity wall can form a total reflection phenomenon. When the first light energy utilization part is arranged outside the accommodating cavity, the transparent cavity wall corresponding to the first light energy utilization part needs to be able to transmit sunlight to the first light energy utilization part, and the other light transmission cavity walls need to be able to transmit sunlight to the first light energy utilization part. It is designed to be able to form a total reflection phenomenon.

Specifically, in an embodiment, the strip-shaped liquid concentrating device has a light-transmitting bottom wall made of a light-transmitting material, and the first light-energy utilization part is attached to the outside of the light-transmitting bottom wall, for example, the first light energy The utilization part is fixedly connected with the outer side of the strip-shaped liquid concentrating device. In the strip-shaped liquid concentrating device, the sunlight is condensed toward the first light energy utilization part, and is injected into the first light energy utilization part.

In another embodiment, the light energy utilization device can be directly immersed in the transparent liquid, and the first light energy utilization part can directly receive sunlight transmitted from the transparent liquid.

In another embodiment, the first light energy utilization part is used as a part of a strip-shaped liquid concentrating device, and the outer wall of the first light energy utilization part (the surface on the side for receiving sunlight) and the light-transmitting side wall are directly or Indirect connection, and form the bottom wall of the accommodating cavity.

In this embodiment, the transparent liquid is used as the light transmission medium, and the light-transmitting side wall or the top wall in this embodiment not only plays the role of light transmission, but also plays the role of total reflection. Compared with the prior art, under the same conditions, the strip-shaped liquid concentrating device can collect more sunlight to the first light energy utilization part, thereby increasing the light concentrating ratio. At the same time, the incident angle of the totally reflected light is improved relative to the light energy utilization device, so the reflection loss of the light energy utilization device is reduced, and the utilization efficiency of the light energy is improved.

Moreover, in this embodiment, the cross-section of the strip-shaped liquid concentrating device is a polygon, wherein the sides of the polygon are greater than or equal to four, that is, the cross-section is a quadrilateral, a pentagon or a polygon with more sides. The cross section refers to a plane cut perpendicular to the longitudinal direction of the strip-shaped liquid concentrator. The cross-section of each part of the strip-shaped liquid concentrating device can be polygons of different shapes, or the cross-section of each part of the strip-shaped liquid concentrating device can also be the same, that is, the strip-shaped liquid concentrating device is along the length direction (longitudinal direction) Cut vertically at any point to obtain a cross-section of the same shape. The cross-section of the strip-shaped liquid light concentrating device is a quadrilateral or more than a polygon, and the entire strip-shaped liquid light-concentrating device can form a light-transmitting cavity wall with a larger area and different inclination angles, so as to adapt to a larger deflection angle of incident light , receive more sunlight. Not only can it be used to deal with the north-south deflection of sunlight, but it can also be used to deal with the east-west deflection of sunlight.

In one embodiment, the light-transmitting side wall or the top wall may be composed of a flat surface, a curved surface, and a Fresnel lens tooth surface.

In one embodiment, part or all of the space in the strip-shaped liquid concentrating device is filled with transparent liquid. Preferably, in an embodiment, the transparent liquid substantially fills the entire accommodating cavity to obtain better effects.

When the strip-shaped liquid concentrating device is utilized, one or more strip-shaped liquid concentrating devices can be used to condense light. Correspondingly, the light energy utilization device may have one or more first light energy utilization parts, or, one or more light energy utilization devices may be provided to be used in combination with the strip-shaped liquid concentrating device, or even light The energy utilization device may be a light energy utilization device with a concentrator. For example, the light energy utilization device is provided with the first light energy utilization portion on one side, or the light energy utilization device is provided with the first light energy utilization portion on both sides.

In one embodiment, the transparent liquid may be purified water (water), antifreeze liquid (mixture of water and ethylene glycol), or other ring-protected transparent liquid (eg, a mixture of water and glycerin).

In addition, the transparent liquid can also directly or indirectly form a heat transfer structure with the first light energy utilization part, thereby cooling or absorbing heat to the first light energy utilization part, and improving the utilization rate of light energy.

Based on the above-mentioned inventive concept, several different embodiments are further described below to better demonstrate the invention of the present application.

Example 1:

Referring to FIG. 1 , the solar energy utilization device disclosed in this embodiment includes a strip-shaped liquid concentrating device 100 and a light energy utilization device 200 . The strip-shaped liquid light concentrating device 100 is a closed structure, enclosing a closed accommodating cavity, and the accommodating cavity is filled with transparent liquid 130 . The accommodating cavity has light-transmitting side walls 110 and a light-transmitting bottom wall 120 (collectively referred to as light-transmitting cavity walls). The light energy utilization device 200 has a first light energy utilization part 210 capable of receiving and converting sunlight (the first light energy utilization part 210 and the light-transmitting bottom wall 120 are in close contact with each other in the figure, so they are marked together). The first light energy utilization part 210 is located at the outer side of the transparent bottom wall 120 and is closely attached to the transparent bottom wall 120 .

Of course, in other embodiments, the first light energy utilization part 210 of the light energy utilization device 200 can be used as the bottom wall of the strip-shaped liquid concentrating device 100 , so that the light energy utilization device 200 and the strip-shaped liquid concentrating device 100 are formed. an overall structure.

FIG. 1 shows a process in which the incident light L is totally reflected by the light-transmitting sidewall 110 to the light energy utilizing device 200 . This embodiment makes full use of the total reflection function of the transparent liquid 130 in the strip-shaped liquid light collecting device 100 to realize the light collecting function. At the same time, the transparent liquid 130 can also be used to cool or absorb heat of the light energy utilization device 200 , so as to improve the light energy utilization rate of the light energy utilization device 200 . That is to say, the light-transmitting sidewall 110 has two functions at the same time: first transmit the incident light from the outside through one surface, and then totally reflect the light from the transparent liquid 130 through the one surface.

Referring to FIG. 1 , in this embodiment, the cross section of the strip-shaped liquid concentrating device 100 is a pentagon. In other embodiments, the cross-section of the strip-shaped liquid concentrating device 100 may also be in other shapes such as quadrangle, heptagon, and the like.

In an embodiment, each cavity wall of the strip-shaped liquid concentrating device 100 may be a plane, a curved surface or a Fresnel lens tooth surface.

Please continue to refer to FIG. 1 . In this embodiment, the strip-shaped liquid concentrating device 100 is a symmetrical structure along the center line C of the light energy utilization device 200 . The center of the light-transmitting bottom wall 120 . In other embodiments, the strip-shaped liquid concentrating device 100 may have an asymmetric structure. In other embodiments, the light energy utilization device 200 may also be disposed at a position where the light-transmitting bottom wall 120 is biased to one side, and does not necessarily need to be located in the center of the light-transmitting bottom wall 120 .

Please continue to refer to FIG. 1 , in this embodiment, the size of the light-transmitting bottom wall 120 is the same as the size of the light-receiving surface (the side that receives sunlight) of the first light energy utilizing portion 210 . In other embodiments, the light-transmitting bottom wall 120 may be larger than the light-receiving surface area of the first light-energy utilizing portion 210 or smaller than the light-receiving surface area of the first light-energy utilizing portion 210 .

Please continue to refer to FIG. 1 , in this embodiment, the light-transmitting sidewall 110 has a symmetrical structure (along the center line C of the light energy utilization device 200 ), while in other embodiments, the light-transmitting sidewall or the top wall may be Asymmetric structure.

Embodiment 2:

Referring to FIG. 2 , the solar energy utilization device disclosed in this embodiment includes a strip-shaped liquid concentrating device 100 and a light energy utilization device 200 .

One difference between the solar energy utilization device shown in this embodiment and the first embodiment is that the strip-shaped liquid concentrating device 100 is provided with a first light guide member 140, and the first light guide member 140 directs sunlight to the first light energy utilization Section 210 guides. The way of guiding can be refraction or reflection.

Referring to FIG. 2 , in this embodiment, the first light guide member 140 is a Fresnel lens that is substantially perpendicular to the light-transmitting bottom wall 120 and deflects the incident light toward the light-transmitting bottom wall 120 . In one embodiment, the Fresnel lens may be a linear Fresnel lens, a double-sided Fresnel lens or a double-sided linear Fresnel lens.

The vertically erected Fresnel lens will greatly enhance the light deflection capability of the strip-shaped liquid condensing device 100 in this embodiment, so that it can be used to adapt to the east-west deflection of the sun and save the sun-following system.

In addition, in other embodiments, the first light guide member 140 may also be a reflective member (eg, a reflective Fresnel lens). The first light guide member 140 may also be disposed in the strip-shaped liquid light concentrating device 100 at other angles, such as a certain angle relative to the vertical direction.

On the other hand, please continue to refer to FIG. 2 , another difference between the solar energy utilization device shown in this embodiment and the first embodiment is that the solar energy utilization device further includes a second light guide member 300 . The second light guide member 300 is disposed outside the strip-shaped liquid concentrating device 100 to guide sunlight toward the light-transmitting sidewall 110 of the strip-shaped liquid concentrating device 100 .

Please continue to refer to FIG. 2 , in this embodiment, the second light guide member 300 is a reflective member disposed on one or both sides of the strip-shaped liquid light concentrating device 100 . Thereby, sunlight is reflected to the strip-shaped liquid concentrating device 100 . In FIG. 2 , the two second light guide members 300 form an opening structure with a large top and a small bottom, so that more sunlight can be irradiated into the opening structure from the openings, thereby collecting more sunlight.

Further, please refer to FIG. 2 , in this embodiment, the second light guide member 300 is fixedly connected with the strip-shaped liquid concentrating device 100 or the light energy utilization device 200 , wherein the second light guide member 300 has hanging ears 310 for In order to install the solar energy utilization device, for example, the whole solar energy utilization device is hung on other objects or another solar energy utilization device through the hanging ears 310 .

In one embodiment, the solar energy utilization device includes multiple groups of sub-devices, and each group of sub-devices respectively has various combinations of the above or the following strip-shaped liquid concentrating devices and light energy utilization devices. There is a gap between the optical devices, and the battery 700 is placed in the gap. With or without mounting ears, the sub-units can be juxtaposed together.

Embodiment three:

Referring to FIG. 3 , the solar energy utilization device disclosed in this embodiment includes a strip-shaped liquid concentrating device 100 and a light energy utilization device 200 . In addition, the solar energy utilization device further includes a closed container 500 , and the strip-shaped liquid concentrating device 100 and the light energy utilization device 200 are arranged in the closed container 500 . The closed container 500 can protect the strip-shaped liquid concentrating device 100 and the light energy utilization device 200 at the same time, such as dustproof and waterproof. The closed container 500 has a light-transmitting surface 400 made of a light-transmitting material, so that sunlight can enter the strip-shaped liquid concentrating device 100 from the light-transmitting surface 400 . The light-transmitting surface 400 may be either the top wall of the closed container 500 or one or several other surfaces of the closed container 500 . The closed container 500 is provided with a working medium 510, and the working medium 510 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.

In one embodiment, the strip-shaped liquid concentrating device 100 communicates with the closed container 500 , for example, from the bottom or sidewall of the strip-shaped liquid concentrating device 100 in communication with the closed container 500 . The working medium 510 is the same transparent liquid 130 as that in the strip-shaped liquid concentrating device 100 , so that the transparent liquid 130 can flow between the cavity of the closed container 500 and the strip-shaped liquid concentrating device 100 . In one embodiment, the transparent liquid 130 can cover the strip-shaped liquid concentrating device 100, and its liquid level is higher than the strip-shaped liquid concentrating device 100, so that the strip-shaped liquid concentrating device 100 can be filled with transparent liquid, and can also be A situation in which the liquid in the strip-shaped liquid concentrating device 100 is reduced is prevented.

In another embodiment, the strip-shaped liquid concentrating device 100 is closed. The strip-shaped liquid concentrating device 100 and the closed container 500 do not communicate with each other. At this time, the closed container 500 may store the same or different working medium 510 as that in the strip-shaped liquid concentrating device 100 , such as air, water or other liquids. At the same time, the closed container 500 can have a first external interface 520, so as to be connected with the external pipeline, for the working medium 510 to enter and exit the closed container 500, so as to use the working medium 510 for other applications, such as realizing thermal circulation with the outside, and in the power generation At the same time, hot water is provided.

Further, please refer to FIG. 3 , the strip-shaped liquid light concentrating device of the present embodiment is quadrilateral in cross-section, and shows a strip-shaped liquid light-concentrating device with an asymmetric structure relative to the center line C of the light energy utilization device 200 . The device 100 is used to deal with the situation where the directivity of sunlight is shifted. This embodiment can be installed in high latitudes in a lay-flat manner.

Of course, the strip-shaped liquid concentrating device 100 or the light-transmitting side wall or the top wall can also be designed to be symmetrical with respect to the center line C of the light energy utilizing device 200 .

Further, please refer to FIG. 2 , the strip-shaped liquid concentrating device 100 may also be provided with a first light guide member 140 , and the first light guide member 140 guides sunlight toward the first light energy utilization portion 210 . The way of guiding can be refraction or reflection.

Further, please refer to FIG. 3 , the solar energy utilization device further includes a second light guide member 300 . The second light guide member 300 is disposed on the outer side of the strip-shaped liquid concentrating device 100 , a part of which is located in the closed container 500 , and a part of which constitutes a part of the side wall of the closed container 500 . The second light guide member 300 guides sunlight toward the light-transmitting sidewall 110 of the strip-shaped liquid concentrating device 100 .

Embodiment 4:

Referring to FIG. 4 , the solar energy utilization device disclosed in this embodiment includes a strip-shaped liquid concentrating device 100 and a light energy utilization device 200 . In addition, the solar energy utilization device further includes a first light guide member 140 and a third light guide member 600 .

Please refer to FIG. 4 , the first light guide member 140 in this embodiment is an inverted transparent hollow strip-shaped cone. In another embodiment, the first light guide member 140 is an inverted transparent hollow strip-shaped frustum. The transparent hollow body (including the transparent hollow strip-shaped cone, the transparent hollow strip-shaped frustum and other forms of transparent hollow bodies) is a closed structure or communicated with the atmospheric environment. Some openings may also be provided in the casing of the device 100 to communicate with the external atmosphere. The main function of the transparent hollow body is to better guide the light to the light energy utilization device 200, thereby expanding the light-gathering ratio. Another additional function is to cope with the solidification or expansion of the transparent liquid 130 when the solar energy utilization device is used in cold regions by squeezing the volume of the transparent hollow body.

The third light guide 600 has an accommodation cavity. The accommodating cavity has a reflective side wall 620 and a reflective bottom wall 610, and the strip-shaped liquid concentrating device 100 and the light energy utilizing device 200 are arranged in the accommodating cavity. The light energy utilization device 200 has a second light energy utilization portion 220 that is away from the first light energy utilization portion 210. The second light energy utilization portion 220 is disposed facing the reflective bottom wall 610. The sunlight is reflected to the second light energy utilization part 220 . The reflective side wall 620 and the reflective bottom wall 610 can be made of various materials and structures capable of reflecting light, such as a reflective mirror or a reflective Fresnel lens surface.

Referring to FIG. 4 , in an embodiment, the first light energy utilization part 210 of the light energy utilization device 200 is disposed upward, and the second light energy utilization part 220 is disposed downward. The reflective sidewall 620 may reflect part of the sunlight to the strip-shaped liquid concentrating device 100 . Part of the sunlight will enter below the second light energy utilization part 220 and be reflected on the second light energy utilization part 220 by the reflective side wall 620 and the reflective bottom wall 610 .

Please continue to refer to FIG. 4 , in order to better reflect sunlight to the second light energy utilization part 220 , in an embodiment, the reflective bottom wall 610 has a W-shaped reflective surface. Of course, the reflective bottom wall 610 can also be in other shapes, such as V-shape or U-shape. In this embodiment, the reflective bottom wall 610 is a simple W-shaped reflective surface. In other embodiments, the W-shaped reflective surface can also be replaced by a reflective Fresnel lens surface.

Further, the area of the light-transmitting bottom wall 120 may be the same as the area of the light-receiving surface of the first light energy utilizing portion 210, or may be different. 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 first light energy utilization portion 210 . When sunlight enters the unshielded portion of the light-transmitting bottom wall 120 from the transparent liquid 130 , the sunlight The light can enter the space below the second light energy utilization part 220 , so that the sunlight is reflected to the second light energy utilization part 220 through the reflection of the reflective bottom wall 610 , so as to increase the amount of sunlight entering the second light energy utilization part 220 Light.

The solar energy utilization device shown in this embodiment has two light energy utilization parts 210 and 220 and a third light guide member 600 , which can further improve the light concentrating efficiency, and is also beneficial to improve the compactness and compactness of the solar energy utilization device.

In another embodiment, the transparent bottom wall 120 may have openings, so that the third light guide member 600 is also filled with transparent liquid.

In one embodiment, all the sidewalls of the strip-shaped liquid concentrating device 100 and the first light guide member 140 are transparent surfaces. In other embodiments, parts of their surfaces may be reflective surfaces.

Embodiment 5:

Referring to FIG. 5 , the solar energy utilization device disclosed in this embodiment includes a strip-shaped liquid concentrating device 100 and a light energy utilization device 200 . The main difference between this embodiment and the fourth embodiment is that the first light energy utilization part 210 of the light energy utilization device 200 is disposed downward. This is an inverted setup.

In this embodiment, a transparent member 230 is further arranged on the light energy utilization device 200 . On the one hand, the transparent member 230 can enhance the rigidity of the light energy utilization device; Sunlight of the light element 600 .

In one embodiment, the third light guide 600 has a light-transmitting cover 630, and the light-transmitting cover 630, the reflective side walls 620 and the reflective bottom wall 610 form a sealed accommodation cavity, so that the third light guide 600 can The strip-shaped liquid concentrating device 100 and the light energy utilization device 200 are protected, such as dustproof and waterproof.

Referring to FIG. 5 , the cross-section of the strip-shaped liquid concentrating device 100 in this embodiment is a pentagon, of course, other shapes are also possible.

In this embodiment, the light energy utilization device 200 may further include a second light energy utilization portion 220 away from the first light energy utilization portion 210 , and the second light energy utilization portion 220 is disposed toward the transparent member 230 . Of course, the light energy utilization device 200 may not be provided with the second light energy utilization part 220 .

Embodiment 6:

Referring to FIG. 6 , the solar energy utilization device disclosed in this embodiment includes a strip-shaped liquid concentrating device 100 and a light energy utilization device 200 . The main difference between this embodiment and the fifth embodiment is that a second strip-shaped liquid concentrating device 100 ′ is further arranged on the light energy utilization device. This is a case where strip-shaped liquid concentrators are provided on both sides of the light energy utilization device. In this case, the transparent liquid 130 ′ of the second strip-shaped liquid concentrating device 100 ′ may be the same as or different from the transparent liquid 130 of the first strip-shaped liquid concentrating device 100 .

In this embodiment, the cross section of the second strip-shaped liquid concentrating device 100 ′ is a quadrilateral, which has two light-transmitting side walls 111 ′ and a light-transmitting top wall 112 ′. In addition, the two light-transmitting side walls 111 ′ are Fresnel lens tooth surfaces, so that the light-transmitting side walls 111 ′ and the transparent liquid 130 constitute a liquid Fresnel lens. In other embodiments, the second strip-shaped liquid concentrating device may also have other shapes.

In this embodiment, the light energy utilization device 200 may further have a second light energy utilization part 220 away from the first light energy utilization part 210 , and the second light energy utilization part 220 faces the second strip-shaped liquid concentrating device 100' set. Of course, the light energy utilization device 200 may not be provided with the second light energy utilization part 220 .

Referring to FIG. 6, in an embodiment, the first strip-shaped liquid concentrating device 100 and/or the second strip-shaped liquid concentrating device 100' is provided with a second external interface 103, which can be connected to an external pipe, The transparent liquid 130 is used to enter and exit the transparent liquid 130 , such as heat exchange with an external thermal circulation system, and the thermal energy obtained by the transparent liquid 130 can be fully utilized.

The above uses specific examples to illustrate the present application, which is only used to help the understanding of the present application, and is not intended to limit the present application. For those skilled in the art, according to the idea of the present application, the above-mentioned specific embodiments can be changed.

Claims

A solar energy utilization device, characterized in that, comprising:

a light energy utilization device, the light energy utilization device has a first light energy utilization part capable of receiving and converting sunlight;

and a strip-shaped liquid concentrating device, the strip-shaped liquid concentrating device is arranged in a strip shape along its longitudinal extension, the strip-shaped liquid concentrating device has several cavity walls, and the cavity walls enclose a accommodating cavity, so the The cross section of the strip-shaped liquid light concentrating device is a polygon, and the sides of the polygon are greater than or equal to four; the accommodating cavity is filled with transparent liquid, and at least part of the cavity wall is a light-transmitting cavity wall, and the first The light energy utilization part is arranged in the accommodating cavity, outside the accommodating cavity or forming the cavity wall of the accommodating cavity, in the accommodating cavity the sunlight emitted from the transparent liquid to at least part of the light-transmitting cavity wall A phenomenon of total reflection is formed, and the sunlight is concentrated on the first light energy utilization part.
The solar energy utilization device according to claim 1, wherein each part of the strip-shaped liquid concentrating device has the same cross section.
The solar energy utilization device according to claim 1, wherein at least one of the light-transmitting cavity walls is a plane, a curved surface or a Fresnel lens tooth surface.
The solar energy utilization device according to any one of claims 1 to 3, wherein a first light guide member is arranged in the strip-shaped liquid concentrating device, and the first light guide member guides sunlight to the first light guide member. A light energy utilization part guides.
The solar energy utilization device according to claim 4, wherein the first light guide member is a Fresnel lens, an inverted transparent hollow strip cone or an inverted transparent hollow strip vertically erected relative to the light energy utilization device shaped cone.
The solar energy utilization device according to any one of claims 1 to 5, further comprising a second light guide member, the second light guide member is arranged on the outer side of the strip-shaped liquid light concentrating device, and is used for Direct sunlight towards the strip-shaped liquid concentrator.
The solar energy utilization device according to claim 6, wherein the second light guide member is a reflective member disposed on one side or both sides of the strip-shaped liquid concentrating device, and the reflective surface of the reflective member faces the The strip-shaped liquid concentrator.
The solar energy utilization device according to claim 7, wherein the second light guide member is fixedly connected to the strip-shaped liquid concentrating device or the light energy utilization device, and the second light guide member has hanging ears for installation The solar energy utilization device.
The solar energy utilization device according to any one of claims 1 to 8, characterized in that, the solar energy utilization device comprises a plurality of groups of sub-devices, and each group of the sub-devices respectively has the strip-shaped liquid concentrating device and the light energy utilization device. In the device, there are gaps between the strip-shaped liquid concentrating devices of adjacent sub-devices, and batteries are placed in the gaps.
The solar energy utilization device according to any one of claims 1 to 9, further comprising a closed container, the light energy utilization device and the strip-shaped liquid concentrating device are arranged in the closed container, and the closed container There is a light-transmitting surface, so that the sunlight can be injected into the strip-shaped liquid concentrating device from the light-transmitting surface, and a working medium is arranged in the closed container, and the working medium and the light energy utilization device are touch.
The solar energy utilization device according to claim 10, wherein the strip-shaped liquid concentrating device is communicated with the closed container, and the working medium is the same transparent liquid as that in the strip-shaped liquid concentrating device, so The transparent liquid covers the strip-shaped liquid concentrating device.
The solar energy utilization device according to claim 10, wherein the strip-shaped liquid concentrating device is closed and arranged, and the closed container has a first external interface for the working medium to enter and exit the closed container, so as to utilize the Describe the working substance.
The solar energy utilization device according to any one of claims 1-10, further comprising a third light guide member, the third light guide member having a accommodating cavity, and the accommodating cavity has a reflective sidewall and a reflective bottom wall, the light energy utilization device has a second light energy utilization part away from the first light energy utilization part, the second light energy utilization part is arranged facing the reflective bottom wall, the reflective side wall and The reflective bottom wall reflects part of the sunlight to the second light energy utilization part.
The solar energy utilization device according to any one of claims 1-10, further comprising a third light guide member, the third light guide member having a accommodating cavity, and the accommodating cavity has a reflective sidewall and a reflective bottom wall, the light energy utilization device has a second light energy utilization part away from the first light energy utilization part, and the first light energy utilization part and the strip-shaped liquid concentrating device are arranged toward the reflective bottom wall , the reflective side walls and the reflective bottom wall reflect part of the sunlight to the first light energy utilization part and the strip-shaped liquid concentrating device, and the second light energy utilization part is arranged away from the reflective bottom wall.
The solar energy utilization device according to claim 13 or 14, wherein a transparent member is provided on the outer side of the first light energy utilization part and/or the second light energy utilization part.
The solar energy utilization device according to any one of claims 13 to 15, wherein the light-reflecting bottom wall has a W-shaped reflecting surface.
The solar energy utilization device according to any one of claims 13-16, wherein the third light guide member has a light-transmitting cover, and the light-transmitting cover, the reflective side wall and the reflective bottom wall enclose a sealed container cavity.
The solar energy utilization device according to any one of claims 14 to 17, further comprising a second strip-shaped liquid concentrating device, and the second strip-shaped liquid concentrating device is arranged on the second light energy utilization device. outside the part, and guide the sunlight toward the first or second light energy utilization part.
The solar energy utilization device according to claim 18, wherein the strip-shaped liquid concentrating device and/or the second strip-shaped liquid concentrating device is provided with a second external interface for the transparent liquid to enter and exit.
The solar energy utilization device according to any one of claims 1-19, characterized in that, the cross-section of the strip-shaped liquid concentrating device is a pentagon or a quadrilateral.