WO2020056970A1

WO2020056970A1 - Sun tracking solar cell

Info

Publication number: WO2020056970A1
Application number: PCT/CN2018/123277
Authority: WO
Inventors: 丁楠
Original assignee: 北京天使印记健康管理有限公司
Priority date: 2018-09-18
Filing date: 2018-12-25
Publication date: 2020-03-26
Also published as: CN108880442A

Abstract

A sun tracking solar cell, comprising a base (1). Rotary disks (2) are provided on the base (1). Each rotary disk (2) is provided a first drive device. Each rotary disk (2) is provided with bar-shaped cell panels (61). Each cell panel (61) has two opposite light receiving surfaces with sides thereof being connected to form a V-shaped structure (6). The V-shaped structures (6) are arranged in parallel side by side and are connected to the rotary disks (2). The sun tracking solar cell also comprises transmission shafts (10) which penetrate the middles of the V-shaped structures (6) to connect same. Each transmission shaft (10) is provided with a second drive device. The sun tracking solar cell further comprises a sensor (4). The sensor (4) is connected to the first drive devices and the second drive devices. Incident sunlight is reflected and refracted for several times on the two opposite light receiving surfaces and then enters another surface. Repeated refractions, incidences and reflections greatly improve the conversion rate of light energy to electric energy. The sun tracking solar cell is especially suitable for being mounted on the top of an electric vehicle to improve the conversion rate on a limited receiving area and to adjust the incident angle of sunlight at any time in a running state and a static state. The sun tracking solar cell provides prerequisite conditions for the wide use of electric vehicles and is of great significance.

Description

Tiny day solar battery

Technical field

The invention relates to photovoltaic power generation, and in particular, discloses a fixed-day solar cell.

Background technique

Photovoltaic power generation systems are mainly composed of solar cells, storage batteries, controllers and inverters, of which solar cells are a key part of photovoltaic power generation systems. In real life, we use a lot of: polycrystalline silicon solar cells and thin-film solar cells, and their large-scale mass-produced products do not exceed the photoelectric conversion efficiency of 18%. Due to the low energy flow density of the sun, in order to meet the needs of power generation, it is necessary to occupy a huge laying area of solar panels. Solar energy is used to generate electricity. Solar energy is irradiated on the surface of the panel. Only a small part of the energy is converted into electrical energy by the panel, and a large part is wasted due to reflection, refraction, or transmission. Because the utilization rate is too low, currently, and the space is Large and cannot be widely used. This shows that although the total amount of solar radiation reaching the earth's surface is large, its actual utilization of solar energy is low due to its low energy flow density.

Due to the low power generation efficiency and large occupied area of solar panels, currently they cannot be widely used. The most common solar panels are mainly used to power some low-power electric equipment, such as street lights and traffic lights. For vehicles such as electric vehicles, their impact on the environment is relatively small compared to traditional cars, so their prospects are widely optimistic. If solar power is used to fully charge such electric vehicles, there is not enough light receiving surface on these electric vehicles to tile these solar panels, so the current technology is still immature.

In view of the above problems, the present invention is proposed.

Summary of the Invention

The purpose of the present invention is to provide a solar battery that overcomes the low power generation efficiency of solar panels in the prior art. The solar panels cannot be fully charged for power-hungry equipment using tiled power generation, and solves electric vehicles such as electric vehicles. Because of the inconvenience of charging, it cannot be widely used.

In order to achieve the above-mentioned object of the invention, the technical solution of the present invention is: a solar battery of the day, including a base 1, the base is provided with a rotary disc structure, the rotary disc structure includes a rotary disc 2, and the rotary disc 2 is provided with a first driving device, Used to drive the turntable to rotate. The turntable is provided with several strip-shaped battery plates 61. The light-receiving surfaces of the battery plates 61 are opposite to each other, and the two sides are connected to form a V-shaped structure 6. Several V-shaped structures 6 are connected in parallel and side by side. On the turntable, the V-shaped structure 6 is provided on the same side of the light-receiving surface; it also includes a drive shaft that passes through the middle of several V-shaped structures 6, and the drive shaft is provided with a second drive device for driving the drive shaft to reciprocate linearly It moves to adjust the opening directions of several V-shaped structures 6; it also includes a photoreceptor 4 provided on the rotary disk 2, and the photoreceptor 4 is respectively connected to the first driving device and the second driving device.

The first driving device includes a driving motor 9, a gear 8 connected to the driving motor 9, and external teeth 3 provided around the rotary disk 2, and the gear 8 is connected to the external teeth 3 in a tooth-tooth connection.

Among them, the second driving device is a telescopic cylinder 7, and the telescopic arm of the telescopic cylinder 7 is connected to one end of the transmission shaft.

An elastic reset device is connected to the other end of the transmission shaft, and the elastic device is fixed on the rotary disk 2.

The included angle between the two light receiving surfaces of the battery plate 61 of each V-shaped structure 6 is 10-60 °.

The angle between the two light receiving surfaces of the battery plate 61 of each V-shaped structure 6 is 20 °.

Among them, the transmission shaft is a ring-shaped structure, the upper part of the ring-shaped transmission shaft passes through the middle of several V-shaped structures, and the lower part surrounds the bottom of the rotary disk. The second driving device includes a second driving motor, a second gear connected to the second driving motor, and a second The gear is meshed with a rack provided on the ring-shaped transmission shaft, and the second driving motor, the second gear and the rack are provided at the bottom of the rotary disk.

Wherein, the base 1 is a rectangle with short sides curved.

The base 1 is provided with at least two rotary disk structures.

Wherein, a removable protective cover 5 is provided above the base 1, and the protective cover 5 is made of transparent material.

The beneficial effects of the present invention are:

In the solar battery of the present invention, two adjacent battery plates are arranged in a V shape. The light-receiving surfaces are oppositely arranged, and the incident sunlight is reflected and refracted on the two light-receiving surfaces opposite to each other multiple times to be incident on the other surface, thereby performing multiple energy conversions. Compared with the traditional flat solar panel, the incident light is repeatedly refracted and incident. Reflection greatly improves the conversion rate of light energy into electric energy, especially when the V-shaped included angle is 20 degrees, the solar energy utilization efficiency of the unit light receiving surface is increased by about 4 times. It is especially suitable for installation on the top of electric vehicles, to improve the conversion rate on a limited light receiving area, and to adjust the incident angle of sunlight at any time during driving and stationary conditions, to further ensure a high conversion rate, which meets the current use of electric vehicles. Electricity demand.

BRIEF DESCRIPTION OF THE DRAWINGS

When considered in conjunction with the drawings, by referring to the following detailed description, the present invention can be more completely and better understood and many of the accompanying advantages can be easily obtained, but the drawings described here are used to provide a further understanding of the present invention, and constitute In part of the present invention, the exemplary embodiments of the present invention and the description thereof are used to explain the present invention, and do not constitute an improper limitation on the present invention, in which:

FIG. 1 is a schematic structural diagram of a solar battery of the present invention;

2 is a schematic diagram of a V-shaped structure of a solar battery of the present invention;

FIG. 3 is a partial enlarged view of FIG. 1 of a solar battery of the present invention; FIG.

4 is a cross-sectional view of a solar battery of the present invention;

FIG. 5 is a partially enlarged view of FIG. 4 of a solar battery of the present invention.

detailed description

The invention will be described clearly and completely in the following with reference to the drawings and the technical solutions in the embodiments of the invention.

As shown in Figs. 1-5, a solar battery for a fixed day includes a base 1, which is provided with a rotary disk structure. The rotary disk structure includes a rotary disk 2, and the rotary disk 2 is provided with a first driving device for driving the rotary disk to rotate. The rotary disk is provided with several strip-shaped battery plates 61. The light receiving surfaces of the battery plates 61 are opposite to each other, and the two sides are connected to form a V-shaped structure 6. The V-shaped structures 6 are movably connected side by side to the rotary plate, preferably vertically. The hinge that rotates in the straight direction is arranged on the same side of the light receiving surface of the V-shaped structure 6; it also includes a transmission shaft 10 that penetrates the middle of several V-shaped structures 6 and a second drive device is provided on the transmission shaft 10 for driving The transmission shaft reciprocates linearly, thereby adjusting the opening directions of the plurality of V-shaped structures 6; and further includes a photoreceptor 4 provided on the rotary disk 2, and the photoreceptor 4 is respectively connected to the first driving device and the second driving device.

When sunlight is irradiated on the light-receiving surface of the V-shaped structure, because the light-receiving surfaces of the two battery panels are oppositely disposed, the incident sunlight is reflected and refracted on the two light-receiving surfaces opposite to each other multiple times and then incident on the other surface. Multiple energy conversions have greatly improved solar energy utilization compared to traditional tiled panels. The photoreceptor sends driving instructions to the first driving device and the second driving device according to the incident angle of the sunlight, thereby driving the rotary disc and the transmission shaft 10 to adjust the angle of sunlight entering the opening of the V-shaped structure to make the incident ability The density is maximized to further ensure solar energy utilization. Especially for mobile vehicles, as the incident angle of sunlight can be adjusted at any time during the movement, the solar cell photoelectric conversion rate can be maximized during the entire transportation.

Among them, the rotary disk is a circular disk that can be rotated in the forward and reverse directions. The first driving device drives the rotation. The transmission shaft 10 penetrates each V-shaped structure and is fixed to each V-shaped structure. The transmission shaft 10 is pulled by the second driving device. Since the bottom of the V-shaped structure is rotatably connected to the turntable, it can drive the V-shaped structure to swing, thereby adjusting the opening direction of the V-shaped structure and ensuring that sunlight always enters at a certain angle.

In the above technical solution, the first driving device includes a driving motor 9, a gear 8 connected to the driving motor 9, and external teeth 3 provided around the rotary disk 2, and the gear 8 is connected to the external teeth 3 in a toothed manner. The driving motor 9 drives the gear 8 to rotate, thereby driving the rotary disk 2 to rotate, and the driving motor 9 is a forward and reverse bidirectional rotation motor.

In the above technical solution, the second driving device is a telescopic cylinder 7, and the telescopic arm of the telescopic cylinder 7 is connected to one end of the transmission shaft. The telescopic cylinder 7 can be a hydraulically-actuated cylinder or a pneumatically-actuated cylinder. The telescopic cylinder telescopically drives the transmission shaft to reciprocate to drive the V-shaped structure to rotate, thereby adjusting the opening direction of the V-shaped structure.

In each of the above technical solutions, the other end of the transmission shaft 10 is connected with an elastic reset device, and the elastic device is fixed on the rotary disk 2. The transmission shaft can be a rigid structure or a structure such as a flexible rope. The elastic reset device ensures the straight state of the transmission shaft, thereby ensuring the angle of each adjustment.

In each of the above technical solutions, the included angle between the two light receiving surfaces of the battery plate 61 of each V-shaped structure 6 is 10-60 °.

In each of the above technical solutions, the included angle between the two light receiving surfaces of the battery plate 61 of each V-shaped structure 6 is 20 °. A large number of experiments have proved that when the angle of the V-shaped structure is 20 °, the incident solar light reflects and refracts the most times while ensuring the incident energy flux density, that is, the number of repeated absorption and conversion of energy is also the most. Compared with tiled battery panels, it is 4 times higher.

In each of the above technical solutions, the transmission shaft has an annular structure, the upper portion of the annular transmission shaft passes through the middle of several V-shaped structures, and the lower portion surrounds the bottom of the rotary disk. The second driving device includes a second driving motor, and the first driving motor is connected to the second driving motor. Two gears, the second gear is meshed with a rack provided on a ring-shaped transmission shaft, and the second drive motor, the second gear and the rack are provided at the bottom of the rotary disk.

In each of the above technical solutions, the base 1 is a rectangle with a short side curved. The base structure in this technical solution is mainly applied to the top of a car, and the curved edge can reduce wind resistance and save energy when driving.

In each of the above technical solutions, at least two rotary disc structures are provided on the base 1 in order along the length direction of the base. The number of turntables is set according to the length of the rectangular structure base and the curved edge, so that the light receiving area on the base is maximized.

In each of the above technical solutions, a removable protective cover 5 is provided above the base 1, and the protective cover 5 is made of transparent material. Without affecting the transmittance of sunlight, use a protective cover to protect the components on the base to prevent damage or pollution.

In summary, the solar cell of the present invention has two adjacent battery plates arranged in a V shape. The light-receiving surfaces are oppositely arranged, and the incident sunlight is reflected and refracted on the two light-receiving surfaces opposite to each other multiple times to be incident on the other surface, thereby performing multiple energy conversions. Compared with traditional tiled solar panels, it repeatedly refracts Incident reflection greatly improves the conversion rate of light energy into electric energy, especially when the V-shaped included angle is 20 degrees, the solar energy utilization efficiency of the unit light receiving surface is increased by about 4 times. It is especially suitable for installation on the top of electric vehicles, to improve the conversion rate on a limited light receiving area, and to adjust the incident angle of sunlight at any time during driving and stationary conditions, to further ensure a high conversion rate, which meets the current use of electric vehicles. The demand for electricity and the widespread use of electric vehicles provide the prerequisites and are of great significance.

The description of the above examples is only used to help understand the core idea of the present invention; meanwhile, for a person of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope, as described above. The contents of this description should not be construed as limiting the invention.

Claims

A fixed-day solar cell, comprising a base (1), the base is provided with a rotary disc structure, the rotary disc structure includes a rotary disc (2), and the rotary disc (2) is provided with a first The driving device is used for driving the rotary disk to rotate. The rotary disk is provided with a plurality of strip-shaped battery plates (61). The light-receiving surfaces of the battery plates (61) are opposite to each other, and the two sides are connected to form a V-shaped structure ( 6), a plurality of said V-shaped structures (6) are movably connected side by side to a rotary disk, and said V-shaped structures (6) are provided on the same side of the light-receiving surface; a transmission shaft is further included, and said transmission shaft penetrates and connects several places The middle portion of the V-shaped structure (6) is provided with a second driving device on the transmission shaft for driving the reciprocating linear motion of the transmission shaft to adjust the opening directions of several V-shaped structures (6); Photoreceptors (4) on the turntable (2), the photoreceptors (4) are respectively connected to the first driving device and the second driving device.
The solar battery of claim 1, wherein the first driving device comprises a driving motor (9), a gear (8) connected to the driving motor (9), and the driving device (9) The external teeth (3) around the rotary disk (2), and the gear (8) is connected to the external teeth (3) in a meshing manner.
The solar battery according to claim 1, wherein the second driving device is a telescopic cylinder (7), and a telescopic arm of the telescopic cylinder (7) is connected to one end of a transmission shaft.
The solar battery according to claim 3, wherein the other end of the transmission shaft is connected with an elastic reset device, and the elastic device is fixed on the rotary disk (2).
The solar cell according to claim 1, wherein an included angle between two light receiving surfaces of each of the panel (61) of the V-shaped structure (6) is 10-60 °.
The solar cell according to claim 5, wherein an included angle between two light receiving surfaces of each of the panel (61) of the V-shaped structure (6) is 20 °.
The solar battery of claim 1, wherein the transmission shaft is an annular structure, the upper part of the annular transmission shaft passes through the middle of several V-shaped structures, and the lower part surrounds to the bottom of the rotary disk. The two driving devices include a second driving motor, a second gear connected to the second driving motor, the second gear meshes with a rack provided on a ring-shaped transmission shaft, and the second driving motor and the second gear And the racks are set at the bottom of the turntable.
The solar cell according to any one of claims 1-7, wherein the base (1) is a rectangle with short sides having an arc shape.
The solar battery according to claim 8, wherein at least two rotary disk structures are arranged on the base (1).
A solar day solar cell according to any one of claims 1-7, wherein a removable protective cover (5) is provided above the base (1), and the protective cover (5) is transparent Material.