CN218526275U

CN218526275U - Photovoltaic light following device

Info

Publication number: CN218526275U
Application number: CN202222807714.6U
Authority: CN
Inventors: 赵哲佳; 苗冬冬; 姜博; 刘明达; 齐海军; 段研
Original assignee: Beijing Linktech Technology Co ltd
Current assignee: Beijing Linktech Technology Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-02-24
Anticipated expiration: 2032-10-25

Abstract

The utility model relates to a photovoltaic light-following device, which comprises a shutter type photovoltaic module and a light-following driving unit; the louver type photovoltaic module comprises profile bases, an angle aluminum bracket and photovoltaic modules, wherein the two profile bases are arranged in parallel, and a plurality of groups of photovoltaic modules are arranged between the two profile bases side by side to form a louver structure; the photovoltaic module comprises a photovoltaic assembly, an assembly back plate and an assembly bracket; the light tracking driving unit comprises a light tracking push rod, a light tracking push block, a motor brake, a sliding table fixing piece, a sliding block, a connecting block, a light tracking support, a first photosensitive resistor and a second photosensitive resistor. The utility model discloses a drive unit drive shutter type photovoltaic module of following spot realizes following spot, has promoted the unit and has received the unchangeable whole generated energy of subassembly down of light area. The small-sized assembly formed by welding and packaging small monocrystalline silicon battery pieces greatly reduces potential safety hazards caused by wind resistance. The use of a PET layer as a component surface encapsulant instead of glass optimizes photovoltaic component weight issues.

Description

Photovoltaic light following device

Technical Field

The utility model belongs to the technical field of photovoltaic power generation, especially, relate to a photovoltaic device of following spot.

Background

The structure of the monocrystalline silicon photovoltaic module mounted on the existing street lamp is fixed, and the light receiving angle cannot be automatically adjusted. The monocrystalline silicon battery plates packaged in the assembly are arranged in series or in parallel in a plurality of groups of whole or half pieces with the size of the conventional battery plates (166/182/210 mm and the like), and are packaged in a tempered glass laminated plate mode. The components are mounted and fixed in a hanging mode on two sides of the rod body or in a placing mode on the top of the rod body. As shown in fig. 1.

Since the incident angle of sunlight of the photovoltaic panel changes with time throughout the year and day, the annual power generation peak period of the photovoltaic module, which is conventionally fixedly installed at the optimum light receiving angle, is short. If the high-power photovoltaic module is replaced to improve the total power generation, the mounting weight and the light receiving area of the rod body are increased, so that certain potential safety hazards exist in strong wind weather.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a photovoltaic device of following spot to solve above-mentioned technical problem.

The utility model provides a photovoltaic light-following device, which comprises a shutter type photovoltaic module and a light-following driving unit;

the shutter type photovoltaic module comprises a profile base, an angle aluminum bracket and a photovoltaic module; the two section bar bases are arranged in parallel, and a plurality of groups of photovoltaic modules are arranged between the two section bar bases side by side to form a louver structure; the photovoltaic module comprises a photovoltaic assembly, an assembly back plate and an assembly bracket; the photovoltaic module is arranged on the module back plate to form a photovoltaic panel; two ends of the assembly back plate are movably connected with the upper end of the assembly bracket through oilless shaft sleeves, back plate shaft sleeves and check rings; the lower end of the component support is fixedly connected with the section bar base through the angle aluminum support;

the light tracking driving unit comprises a light tracking push rod, a light tracking push block, a motor brake, a sliding table fixing piece, a sliding block, a connecting block, a light tracking support, a first photosensitive resistor and a second photosensitive resistor; the light following push rod is arranged close to the profile base on one side, one end of the light following push block is fixedly connected with the side face of the assembly back plate, and the other end of the light following push block is connected with the light following push rod; the sliding table is fixedly connected with the section bar base through the sliding table fixing piece; the sliding block is arranged on the sliding table and connected with a transmission shaft of the motor; the motor brake is connected with the motor; the sliding block is connected with the light following push rod through the connecting block and is used for sliding along the sliding table under the driving of the motor so as to drive the photovoltaic panel to rotate through the light following push rod and the light following push block; the light tracing support is connected with the assembly backboard, and the first photoresistor and the second photoresistor are installed on the light tracing support.

Further, the surface of the photovoltaic module is encapsulated by a PET layer.

Furthermore, the photovoltaic module is formed by welding and packaging small monocrystalline silicon battery pieces.

Further, a stopper support is installed on the sliding table, and a stopper used for limiting the stroke of the sliding block is installed on the stopper support.

Furthermore, two limiting blocks for limiting the pushing path of the follow spot push rod are mounted on the inner side of the angle aluminum support.

Furthermore, the light tracing support comprises a light tracing support upper cover, a screw reserved hole site, a first photoresistor installation hole site, a second photoresistor installation hole site, an upper cover installation reserved hole site and a light tracing support base.

Further, the section bar base is fixedly connected with the fixing surface through angle irons and double-hole sliding groove nuts.

Furthermore, the section bar base is fixedly connected with the angle aluminum bracket through a single-hole sliding groove nut.

By means of the scheme, the photovoltaic light tracking device drives the shutter type photovoltaic module to realize light tracking through the light tracking driving unit, and the whole power generation amount of the module under the condition that the unit light receiving area is unchanged is improved. The small-sized assembly formed by welding and packaging the small monocrystalline silicon battery pieces not only greatly reduces the potential safety hazard caused by wind resistance, but also improves the plastic manufacturing space of the whole appearance of the lamp post. The use of a PET layer instead of glass as the component surface encapsulation material optimizes photovoltaic component weight issues. The potential safety hazard problem that the wind pressure probably caused is optimized through the louver type small piece arrangement structure.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

FIG. 1 is a schematic structural diagram of a monocrystalline silicon photovoltaic module mounted on a conventional street lamp;

fig. 2 is a schematic structural view of the photovoltaic light tracking device of the present invention;

FIG. 3 is a view of a part of the mounting member of the present invention;

FIG. 4 is a schematic view of the connection of the light-following push rod of the present invention;

fig. 5 is a schematic view of the structure of the light-following bracket of the present invention;

FIG. 6 is a front view of the section bar base and the fixing surface of the present invention;

FIG. 7 is a side view of the connection between the base and the fixing surface of the section bar of the present invention;

fig. 8 is a schematic view of the connecting component between the profile base and the fixing surface and between the profile base and the angle aluminum bracket of the present invention.

The reference numbers in the figures:

1-a first photo-resistor; 2-a second photo-resistor; 3-a light-following support; 4-oilless shaft sleeve; 5-a back plate shaft sleeve; 6-a component holder; 7-profile base; 8-a retainer ring; 9-a limiting block; 10-a slipway fixing piece; 11-a slide table; 12-a slip table nut; 13-a stopper; 14-a stopper holder; 15-connecting blocks; 16-a motor; 17-motor braking; an 18-angle aluminum bracket; 19-a light following push rod; 20-a light following push block; 21-a photovoltaic module; 22-component backplane; 23-upper cover of light-following bracket; 24-reserving hole sites for screws; 25-a first photoresistor mounting hole site; 26-a second photoresistor mounting hole site; 27-installing a reserved hole site on the upper cover; 28-a light-following support base; 29-angle iron (right angle iron or rounded iron); 30-single hole chute nut; 31-a double-hole chute nut; 32-fixed surface.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 8, the present embodiment provides a photovoltaic light tracking device, which includes a louver-type photovoltaic module and a light tracking driving unit;

the shutter type photovoltaic module comprises a profile base 7, an angle aluminum bracket 18 and a photovoltaic module; the two section bar bases 7 are arranged in parallel, and a plurality of groups of photovoltaic modules are arranged between the two section bar bases 7 side by side to form a shutter structure; the photovoltaic module comprises a photovoltaic module 21, a module back plate 22 and a module bracket 6; the photovoltaic module 21 is mounted on the module back plate 22, and the module back plate 22 used for fixing the photovoltaic module 21 is made of an aluminum alloy material. The photovoltaic module is fixed on the surface of the back plate by four screws and nuts to form a photovoltaic panel; two ends of the assembly back plate 22 are movably connected with the upper end of the assembly bracket 6 through an oilless shaft sleeve 4, a back plate shaft sleeve 5 and a retainer ring 8; in order to reduce weight and reserve wiring of the photovoltaic module, two wire outlet holes are reserved in the module back plate, the module back plate shaft sleeve extends out from the inner side of the back plate to the outer side along two ends of an x axis and is fixed on bending surfaces on two sides of the back plate, and the oil-free sleeve shaft 4 is buckled into the module support 6 and is in sliding connection with the retainer ring 8 and the back plate sleeve shaft 5; the lower end of the component support 6 is fixedly connected with the section bar base 7 through an angle aluminum support 18, and each component support is fixed with the inner side of the angle aluminum support 18 through 2 groups of screws.

The light following driving unit comprises a light following push rod 19, a light following push block 20, a motor 16, a motor brake 17, a sliding table 11, a sliding table fixing piece 10, a sliding block 12, a connecting block 15, a light following support 3, a first photosensitive resistor 1 and a second photosensitive resistor 2; the light-following push rod 19 is arranged close to the profile base 7 on one side, one end of the light-following push block 20 is fixedly connected with the side face of the assembly back plate 22, and the other end of the light-following push block is connected with the light-following push rod 19. In this embodiment, two ends of the light tracing push block 20 are respectively fixed at the reserved hole sites of the bending surface of the back plate of the assembly and the reserved hole sites in the slideway of the light tracing push rod 19 by using step screws or locking screws. The sliding table 11 is fixedly connected with the section bar base 7 through a sliding table fixing piece 10; the sliding block 12 is arranged on the sliding table 11 and is connected with a transmission shaft of the motor 16; the motor brake 17 is connected with the motor 16; the sliding block 12 is connected with a light tracing push rod 19 through a connecting block 15 and is used for sliding along the sliding table 11 under the driving of a motor 16 so as to drive the photovoltaic panel to rotate through the light tracing push rod 19 and the light tracing push block 20. In this embodiment, both ends of the connecting block 15 are fixed to the slider 12 and the follow spot push rod 19, respectively. When the motor rotates, the movement direction of the sliding block is changed through the sliding table, and the light following push rod is driven to slide back and forth in the horizontal direction. The drive assembly that motor 16 and slip table are constituteed can place the rear end of photovoltaic module, inboard and the outside. The light tracing support 3 is connected with the assembly back plate 22, and the first photoresistor 1 and the second photoresistor 2 are installed on the light tracing support 3.

In the embodiment, the photovoltaic module 21 is formed by welding and packaging small monocrystalline silicon battery pieces. The photovoltaic module adopts 1/16 (multiple) of the conventional monocrystalline silicon battery plates (166/182/210 mm and the like) for welding and packaging. The number of battery pieces, the serial-parallel mode, the size of the assembly and other specifications can be freely adjusted according to the requirements on voltage and power. The small-sized component formed by welding and packaging the small monocrystalline silicon battery pieces not only greatly reduces the potential safety hazard caused by wind resistance, but also improves the plastic manufacturing space of the whole appearance of the lamp post.

In this embodiment, the slide table 11 is mounted with a stopper bracket 14, and a stopper 13 for limiting the stroke of the slider 12 is mounted on the stopper bracket 14.

In this embodiment, 2 limit blocks are fixed on the inner side of the angle aluminum bracket 18 by 4 sets of screws to limit the pushing path of the light tracing push rod, and the other side of the angle aluminum bracket 18 does not need to be provided with a limit block.

In this embodiment, the light tracing support 3 includes a light tracing support upper cover 23, a screw reserved hole 24, a first photoresistor mounting hole 25, a second photoresistor mounting hole 26, an upper cover mounting reserved hole 27, and a light tracing support base 28.

In the present exemplary embodiment, the profile base 7 is fixedly connected to the fastening surface 32 by means of angle bars 29 and a two-hole slotted link nut 31.

In the present exemplary embodiment, the profile base 7 is fixedly connected to the angle aluminum support 18 by means of a single-hole slotted link nut 30.

In the present embodiment, the surface of the photovoltaic module 21 is encapsulated by a PET (Polyethylene terephthalate) layer. The photovoltaic module weight issue is optimized by using a PET layer instead of glass as the module surface encapsulation material.

In other examples, the slip table and the push rod of following spot can be replaced by gear, hold-in range, mechanical chain, lead screw etc. the power supply of the drive unit of following spot can use linear electric motor, servo, lead screw etc. motor substitution, photovoltaic module can be replaced by other cells such as amorphous silicon, polycrystalline silicon, photovoltaic module quantity can increase and decrease according to the demand.

The photovoltaic light tracking device utilizes differential electric signals generated by sunlight irradiating two photosensitive elements fixed at different positions on the surface of a photovoltaic module to drive a motor to forward or reverse, so that the light receiving angle of the photovoltaic module is always kept in a vertical state in the light irradiation time. Thereby increasing the peak period of power generation of the assembly.

According to the photovoltaic light tracking device, the shutter type photovoltaic module is driven by the light tracking driving unit to realize light tracking, and the integral power generation capacity of the module under the condition that the unit light receiving area is unchanged is improved. Under the same test environment of time, geographical position, etc., taking 50% of rated power generation of the photovoltaic module as a threshold, the time range that the electric power of the light following module during the power generation exceeds the threshold is 9-14: 50-12:50. The combination of multiple test results shows that the power generation peak period of the light-following type component is 2-2.5 times longer than that of the fixed type power generation peak period, and the power generation amount is improved by 10% -20% compared with that of the fixed type scheme.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A photovoltaic light tracking device is characterized by comprising a shutter type photovoltaic module and a light tracking driving unit;

the shutter type photovoltaic module comprises a profile base (7), an angle aluminum bracket (18) and a photovoltaic module; the two profile bases (7) are arranged in parallel, and a plurality of groups of photovoltaic modules are arranged between the two profile bases (7) side by side to form a louver structure; the photovoltaic module comprises a photovoltaic assembly (21), an assembly back plate (22) and an assembly bracket (6); the photovoltaic module (21) is arranged on the module back plate (22) to form a photovoltaic panel; two ends of the assembly back plate (22) are movably connected with the upper end of the assembly bracket (6) through an oilless shaft sleeve (4), a back plate shaft sleeve (5) and a retainer ring (8); the lower end of the component support (6) is fixedly connected with the section bar base (7) through the angle aluminum support (18);

the light following driving unit comprises a light following push rod (19), a light following push block (20), a motor (16), a motor brake (17), a sliding table (11), a sliding table fixing piece (10), a sliding block (12), a connecting block (15), a light following support (3), a first light-sensitive resistor (1) and a second light-sensitive resistor (2); the light following push rod (19) is arranged close to the profile base (7) on one side, one end of the light following push block (20) is fixedly connected with the side face of the assembly back plate (22), and the other end of the light following push block is connected with the light following push rod (19); the sliding table (11) is fixedly connected with the section bar base (7) through the sliding table fixing piece (10); the sliding block (12) is arranged on the sliding table (11) and is connected with a transmission shaft of the motor (16); the motor brake (17) is connected with the motor (16); the sliding block (12) is connected with the light tracing push rod (19) through the connecting block (15) and used for sliding along the sliding table (11) under the driving of the motor (16) so as to drive the photovoltaic panel to rotate through the light tracing push rod (19) and the light tracing push block (20); the light tracing support (3) is connected with the assembly back plate (22), and the first photoresistor (1) and the second photoresistor (2) are installed on the light tracing support (3).

2. The photovoltaic follow spot device according to claim 1, characterized in that the photovoltaic module (21) surface is encapsulated with a PET layer.

3. The photovoltaic follow spot device according to claim 1, characterized in that the photovoltaic module (21) is composed of a small-sized single crystal silicon cell piece soldering package.

4. The photovoltaic light tracking device according to claim 1, wherein a stopper bracket (14) is mounted on the sliding table (11), and a stopper (13) for limiting the stroke of the sliding block (12) is mounted on the stopper bracket (14).

5. The photovoltaic light tracking device according to claim 4, wherein two limiting blocks (9) for limiting the pushing path of the light tracking push rod (19) are mounted on the inner side of the angle aluminum bracket (18).

6. The photovoltaic light tracking device according to claim 1, wherein the light tracking support (3) comprises a light tracking support upper cover (23), a screw reserved hole site (24), a first photoresistor mounting hole site (25), a second photoresistor mounting hole site (26), an upper cover mounting reserved hole site (27) and a light tracking support base (28).

7. The photovoltaic follow spot device according to claim 1, characterized in that the profile base (7) is fixedly connected to the fixing surface (32) by means of angle bars (29) and a double-hole runner nut (31).

8. The photovoltaic follow spot device according to claim 7, characterized in that the profile base (7) is fixedly connected to the angle aluminum bracket (18) by a single Kong Huacao nut (30).