Patent Application
20230353085
This application claims priority to Chinese Patent Application No. 202221007473.0 filed Apr. 27, 2022, the disclosure of which is incorporated herein by reference in its entirety.
The present disclosure relates to the photovoltaic field and, in particular, a reflector and a solar power generation system.
At present, a crystalline silicon solar cell is mainly divided into a single-sided power generation cell and a double-sided power generation cell. Since the double-sided power generation cell has the effect of generating power on both sides, the power generation efficiency of the solar cell is drastically improved. Therefore, the double-sided power generation cell is gradually favored by the market.
In the related art, the power generation amount (the sum of the front-side power generation amount and the rear-side power generation amount) of the double-sided power generation cell is typically improved by increasing the power generation amount of the rear side of the double-sided power generation cell. In general, people lay grids or reflection films on the ground, or paint the white paint on the ground, in the ground mounting regions of the double-sided power generation cell, or add a reflector having a concave mirror, so as to increase the reflection of sunlight. However, the preceding methods not only are higher in costs, unfavorable for carrying and storage, and have larger device volume, but also can only increase power generation amount of the rear side of the double-sided cell.
Therefore, it is urgent to design a reflector and a solar power generation system to solve the technical problems in the related art.
The object of the present disclosure provides a reflector that is simple in structure, easy to store and carry, and can improve power generation amount of both the light-receiving side and the rear side of the double-sided power generation cell and save costs.
To achieve this object, the present disclosure adopts the solutions below.
The present disclosure provides a reflector configured to reflect sunlight onto a double-sided power generation cell.
The reflector is provided with a plurality of reflection regions. Each of the plurality of reflection regions is provided with a reflection protrusion having a different inclination angle.
In an optional solution of the reflector, the reflection region includes a first reflection region, a second reflection region, a third reflection region, and a fourth reflection region that are arranged in a line. The third reflection region and the fourth reflection region are located between the first reflection region and the second reflection region.
In an optional solution of the reflector, the first reflection region is provided with a first reflection protrusion having a section of a right triangle. The hypotenuse of the right triangle is at an angle of 0° to 20° with respect to a plane where the first reflection region is located.
In an optional solution of the reflector, the second reflection region is provided with a second reflection protrusion having a section of a right triangle. The hypotenuse of the right triangle is at an angle of 45° to 75° with respect to a plane where the second reflection region is located.
In an optional solution of the reflector, the third reflection region is provided with a third reflection protrusion having a section of a right triangle. The hypotenuse of the right triangle is at an angle of 20° to 45° with respect to a plane where the third reflection region is located.
In an optional solution of the reflector, the fourth reflection region is provided with a fourth reflection protrusion having a section of a right triangle. The hypotenuse of the right triangle is at an angle of 20° to 45° with respect to a plane where the fourth reflection region is located. The inclination angle of the fourth reflection protrusion is opposite to the inclination angle of the third reflection protrusion.
In an optional solution of the reflector, the length of the first reflection region does not exceed the width of the double-sided power generation cell.
In an optional solution of the reflector, the sum of the length of the second reflection region, the length of the third reflection region, and the length of the fourth reflection region does not exceed two times the width of the double-sided power generation cell.
In an optional solution of the reflector, the reflector is coated with a waterproof layer.
The present disclosure also provides a solar power generation system including a reflector and a double-sided power generation cell. The reflector is provided with a plurality of reflection regions. Each of the plurality of reflection regions is provided with a reflection protrusion having a different inclination angle. The double-sided power generation cell is inclinedly disposed between two adjacent ones of the plurality of reflection regions. The plurality of reflection regions are capable of reflecting sunlight onto a light-receiving side and a rear side of the double-sided power generation cell. The reflector is the preceding reflector.
The present disclosure has the beneficial effects below.
Compared with the related art, the reflector provided in the present disclosure is simple in structure and easy to store and carry. The reflector is provided with a plurality of reflection regions. The plurality of reflection regions are provided with the reflection protrusions having different inclination angles. In this manner, sunlight indirectly hitting the light-receiving side can be reflected onto the light-receiving side and the rear side of the double-sided power generation cell through the reflection regions, thereby increasing the power generation amount of the double-sided power generation cell and saving costs.
The present disclosure also provides a solar power generation system that is simple in structure and can increase the power generation amount of the double-sided power generation cell, thereby saving costs.
To illustrate the solutions in embodiments of the present disclosure more clearly, the drawings used in description of the embodiments will be briefly described below. Apparently, the drawings described below illustrate part of the embodiments of the present disclosure, and those of ordinary skill in the art may obtain other drawings based on the drawings described below on the premise that no creative work is done.
To better illustrate the solved problem, adopted solutions and achieved effects of the present disclosure, the present disclosure is further described in conjunction with drawings and embodiments.
In the description of the present disclosure, terms “jointed”, “connected”, or “fixed” are to be construed in a broad sense unless otherwise expressly specified and limited. For example, the term “connected” may refer to “securely connected”, “detachably connected” or “integrally connected”, may refer to “mechanically connected” or “electrically connected”, or may refer to “connected directly”, “connected indirectly through an intermediary” or “intraconnected between two components or interactional between two components”. For those of ordinary skill in the art, specific meanings of the preceding terms in the present disclosure may be understood based on specific situations.
In the present disclosure, unless otherwise expressly specified and limited, when a first feature is described as “on” or “below” a second feature, the first feature and the second feature may be in direct contact or may be in contact via another feature between the two features instead of being in direct contact. Moreover, when the first feature is described as “on”, “above”, or “over” the second feature, the first feature is right on, above, or over the second feature or the first feature is obliquely on, above, or over the second feature, or the first feature is simply at a higher level than the second feature. When the first feature is described as “under”, “below” or “underneath” the second feature, the first feature is right under, below, or underneath the second feature or the first feature is obliquely under, below, or underneath the second feature, or the first feature is simply at a lower level than the second feature.
In the description of the embodiments, it is to be noted that orientations or position relations indicated by terms such as “above”, “below”, “left”, and “right” are based on the drawings. These orientations or position relations are intended only to facilitate the description and simplify an operation and not to indicate or imply that a device or element referred to must have such particular orientations or must be configured or operated in such particular orientations. Thus, these orientations or position relations are not to be construed as limiting the present disclosure. In addition, the terms “first” and “second” are used only to distinguish between descriptions and have no special meaning.
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Compared with the related art, the reflector 200 provided in the present embodiment is simple in structure and easy to store and carry. The reflector 200 is set to be a plurality of reflection regions. The plurality of reflection regions are provided with the reflection protrusions having different inclination angles. In this manner, sunlight not directly hitting the light-receiving side can be reflected onto the light-receiving side and the rear side of the double-sided power generation cell 100 through the reflection regions, thereby increasing the power generation amount of the double-sided power generation cell 100 and saving costs. It has been verified by a number of experiments that the power generation capacity of the light-receiving side of the double-sided power generation cell 100 can be increased by 7% or more, and the power generation capacity of the rear side can be increased by 13% or more by using the reflector 200.
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Exemplarily, as shown in
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Optionally, in the present embodiment, the length of the first reflection region 210 does not exceed the width of the double-sided power generation cell 100. The sum of the length of the second reflection region 220, the length of the third reflection region 230, and the length of the fourth reflection region 240 does not exceed two times the width of the double-sided power generation cell 100. In this manner, it is ensured to reduce the weight and the manufacturing cost of the reflector 200 while increasing the power generation capacity of the double-sided power generation cell 100, facilitating carrying and storage.
Optionally, in the present embodiment, the reflector 200 is coated with the waterproof layer that is beneficial for the reflector 200 to generate electricity on rainy days and improving the flexibility and applicability of the reflector 200.
Optionally, in the present embodiment, the reflector 200 is made of a soft aluminized reflection mylar or a high-reflection material containing a high-molecular polymer having a reflectivity greater than 90%. Apparently, the operator may also use another reflection material to manufacture the reflector 200. The material is not limited in the present embodiment.
Optionally, in the present embodiment, the reflector 200 may be formed with a plurality of folds and finally folded into one, two, or more pieces. The reflector 200 may be mounted at the edge of the double-sided power generation cell 100 by screwing or sewing, and folded and stored together with the double-sided power generation cell 100 in the middle or the outer layer of the double-sided power generation cell 100 so that the reflector 200 may play a certain shock-absorbing role when the double-sided power generation cell 100 is transported.
Optionally, in the present embodiment, the reflector 200 includes a bracket (not shown in the figure) provided on the rear side. The bracket can play a certain supporting role for the double-sided power generation cell 100 and make the double-sided power generation cell 100 and the reflector 200 have an inclination angle of θ, improving the stability and the reliability of the double-sided power generation cell 100.
The present disclosure also provides a solar power generation system mainly including a reflector 200 and a double-sided power generation cell 100. The reflector 200 is provided with a plurality of reflection regions. Each of the plurality of reflection regions is provided with a reflection protrusion having a different inclination angle. The double-sided power generation cell 100 is inclinedly disposed between two adjacent ones of the plurality of reflection regions. The plurality of reflection regions are capable of reflecting sunlight onto a light-receiving side and a rear side of the double-sided power generation cell 100. The reflector 200 is the preceding reflector 200. The solar power generation system is simple in structure and can increase the power generation amount of the double-sided power generation cell 100, thereby saving costs.
It is to be noted that the description of the specification, the description of reference terms such as “some embodiments” and “other embodiments” is intended to mean that specific features, structures, materials, or characteristics described in conjunction with such embodiments or examples are included in at least one embodiment or example of the present disclosure. In the specification, the illustrative description of the preceding terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials, or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202221007473.0 | Apr 2022 | CN | national |
