CN204613759U - A disc type photovoltaic tracker - Google Patents

Abstract

The utility model discloses a kind of disc type photovoltaic tracking device, the slide rail comprising track outer ring, track inner ring, pitching bracing frame, solar panel, pitching driving mechanism, circumferential driving mechanism and coordinate with track outer ring; Pitching bracing frame and track outer ring and track inner ring are connected to form a general frame structure, this general frame forms fixed part and movable part, solar panel is fixedly connected with the movable part of general frame, and the fixed part that pitching driving mechanism is fixedly connected on general frame structure can drive movable part to realize luffing; General frame structure is coordinated with the slide rail fixed on the ground by track outer ring, drives general frame structure to drive solar panel to realize rotating in a circumferential direction by circumferential driving mechanism.The utility model enables solar panel all the time just facing to sunlight by pitching driving mechanism and circumferential driving mechanism, considerably increases the photovoltaic utilization factor of land area of one unit.

Description

A disc type photovoltaic tracker

technical field

The utility model relates to a photovoltaic tracker, in particular to a disc-type photovoltaic tracker, which belongs to the technical field of solar energy utilization.

Background technique

At present, international energy issues have become the focus of attention of all countries. The effective use of fossil energy and the development and utilization of new energy have become the research focus of scientists. With fossil fuels decreasing day by day, solar energy has become an important part of the energy used by human beings and has been continuously developed. The utilization of solar energy has two ways: passive utilization (light-to-heat conversion) and photoelectric conversion. Solar power generation is a new type of renewable energy. Solar power has become the first choice for clean energy.

In response to China's "Twelfth Five-Year Plan" to "promote the transformation of energy production and utilization methods". As of 2015, the domestic installed capacity is expected to reach 13GW. Currently used photovoltaic power generation devices are mainly used: fixed power plants, tracking power plants, home power plants, off-grid power plants and other types. Various large-scale power stations adopt centralized power generation, which means that a large amount of land area needs to be concentrated to meet the requirements of centralized power generation. Among them, the single-axis photovoltaic tracking power station can increase (compared with the fixed-angle photovoltaic power station) 20-30% of the electricity. It is more conducive to recovering costs in the short term.

Utility model content

In view of this, the utility model provides a disc-type photovoltaic tracker, which can effectively use the vast flat land for photovoltaic power generation, and collect electric energy to supply power to nearby facilities or to the transmission network. The solar panels can always face the Sunshine greatly increases the photovoltaic utilization rate per unit land area.

A disc-type photovoltaic tracker, comprising a track outer ring, a track inner ring, a pitch support frame, a solar panel, a pitch drive mechanism, a circumferential drive mechanism, and a slide rail matched with the track outer ring;

The pitch support frame is connected with the outer ring of the track and the inner ring of the track to form an integral frame structure, the integral frame forms a fixed part and a movable part, the solar cell panel is fixedly connected with the movable part of the integral frame, and the pitch drive mechanism is fixed It is connected to the fixed part of the overall frame structure and can drive the movable part to achieve pitching motion; the overall frame structure cooperates with the slide rail fixed on the ground through the outer ring of the track, and drives the overall frame structure to drive the solar panel through the circumferential driving mechanism achieve circumferential rotation.

Further, the circumferential drive mechanism includes a transmission chain, a geared motor and a sprocket, the geared motor is fixedly connected to the peripheral fixed foundation, and the output shaft of the geared motor is fixedly connected to the sprocket; the two ends of the transmission chain are fixed Connected to the outer circumferential surface of the outer ring of the track, the sprocket is located between the transmission chain and the outer ring of the track and meshes with the transmission chain.

Further, the pitching support frame includes connecting rods, fixed beams, movable beams and push-pull rods, the fixed beams are fixedly connected on the outer ring of the track and the inner ring of the track along the horizontal and vertical directions, and the movable beams are connected to the inner ring of the track through the connecting rods. The fixed beam is movably connected, the movable beam is horizontally located above the fixed beam, and the movable beam is also movably connected with the connecting rod. One end of the pull rod is movably connected with the movable beam, and the other end is connected with the pitch The driving mechanism is movably connected; the solar cell panel is fixedly connected with the movable beam through a support rod and a support plate.

Further, the pitch drive mechanism includes a drive motor, a pinion shaft, a gear, a rack and a rack guide rail, the drive motor and the rack guide rail are fixedly connected to the fixed beam of the pitch support frame, and the rack The rack guide rail is a sliding fit, the drive motor is fixedly connected to the gear through the gear shaft, and the gear and the rack are meshed with each other.

Beneficial effect:

1. The circumferential driving mechanism of the utility model realizes the horizontal angular rotation through the rotation of the turntable, and the drive adopts the form of chain and sprocket to realize the transmission, which is convenient for realizing precise circumferential angle control, high transmission precision and low manufacturing cost.

2. The utility model places the battery panels horizontally through the pitching drive mechanism under extremely harsh conditions, so as to reduce the damage to the battery panels by wind and sand and increase the ability to resist wind and sand. In rainy, snowy and hail weather, the battery panels are placed vertically to reduce hail damage and snow coverage. When the weather is fine, the tracker will automatically return to the normal tracking state. If maintenance is required, turn the panels horizontally to face the sun, so that the photovoltaic power generation system will generate less or no electricity, which is convenient for workers to repair and maintain.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the structural representation of the utility model horizontal rotation mechanism;

Fig. 4 is the structure schematic diagram of pitching mechanism of the present utility model;

Fig. 5 is an axonometric view of the pitching mechanism of the present invention.

Among them, 1-track outer ring, 2-track inner ring, 3-support frame, 4-solar panel, 5-pitch drive mechanism, 6-transmission chain, 7-reduction motor, 8-sprocket, 9-drive motor , 10-gear shaft, 11-gear, 12-rack, 13-connecting rod, 14-fixed beam, 15-movable beam, 16-push-pull rod, 17-rod, 18-support plate, 19-rack guide rail .

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and examples.

As shown in Figures 1 and 2, the utility model provides a disc-type photovoltaic tracker, including an outer track 1, an inner track 2, a pitch support frame 3, a solar panel 4, a pitch drive mechanism 5, a circumferential A drive mechanism and a slide rail matched with the track outer ring 1;

As shown in accompanying drawing 3, described circumferential driving mechanism comprises transmission chain 6, decelerating motor 7 and sprocket 8, and described decelerating motor 7 is fixedly connected on the fixed foundation of periphery, and the output shaft of decelerating motor 7 is fixedly connected sprocket wheel 8; both ends of the transmission chain 6 are fixedly connected to the outer circumferential surface of the track outer ring 1 , and the sprocket 8 is located between the drive chain 6 and the track outer ring 1 and meshes with the drive chain 8 .

As shown in accompanying drawing 4 and 5, described pitch support frame 3 comprises connecting rod 13, fixed beam 14, movable beam 15 and push-pull rod 16; Described pitch driving mechanism 5 comprises drive motor 9, gear shaft 10, gear 11, rack 12 and rack guide 19;

The fixed beam 14 is fixedly connected on the track outer ring 1 and the track inner ring 2 along the horizontal and vertical directions, the movable beam 15 is hinged with the fixed beam 14 through the connecting rod 13, and the movable beam 15 is horizontally located at the Above the fixed beam 14, the movable beam 15 and the connecting rod 13 are also hinged, one end of the pull rod 16 is hinged with the movable beam 15, and the other end is hinged with the rack 12 in the pitch drive mechanism; the solar energy The battery board 4 is fixedly connected to the movable beam 15 through the pole 17 and the support plate 18; the drive motor 9 and the rack guide rail 19 are fixedly connected to the fixed beam 14 of the pitch support frame 3, and the 12 The rack guide rail 19 is a sliding fit, and the drive motor is fixedly connected to the gear 11 through the gear shaft 10, and the gear 11 and the rack 12 are meshed with each other.

Working principle: When the solar panel needs to rotate in the circumferential direction, the reduction motor 7 drives the sprocket 8 to rotate and transmits the torque to the transmission chain 6. Since the two ends of the transmission chain 6 are fixedly connected to the outer ring 1 of the track, the outside of the track The ring 1 is slidingly matched with the slide rail, so that the device is driven by the outer ring 1 of the track to realize circumferential rotation as a whole; when the solar panel needs to change the pitch angle, the drive motor 9 drives the gear 11 to rotate through the gear shaft 10, and the gear 11 The rotation makes the rack 12 move horizontally along the rack guide rail 19, and the translation of the rack 12 pulls or pushes the movable beam 15 to rotate around the hinge point between the movable beam 15 and the fixed beam 14 through the push-pull rod 16, thereby realizing the solar panel A change in pitch angle is required.

In summary, the above are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (4)

1. a disc type photovoltaic tracking device, it is characterized in that, comprising: track outer ring (1), track inner ring (2), pitching bracing frame (3), solar panel (4), pitching driving mechanism (5), circumferential driving mechanism and the slide rail coordinated with track outer ring (1);

Described pitching bracing frame (3) is connected to form a general frame structure with track outer ring (1) and track inner ring (2), this general frame forms fixed part and movable part, described solar panel (4) is fixedly connected with the movable part of general frame, and the fixed part that described pitching driving mechanism (5) is fixedly connected on general frame structure can drive movable part to realize luffing; General frame structure is coordinated with the slide rail fixed on the ground by track outer ring (1), drives general frame structure to drive described solar panel (4) to realize rotating in a circumferential direction by circumferential driving mechanism.

2. a kind of disc type photovoltaic tracking device as claimed in claim 1, it is characterized in that, described circumferential driving mechanism comprises driving-chain (6), reducing motor (7) and sprocket wheel (8), described reducing motor (7) is fixedly connected on peripheral immobilizing foundation, and the output shaft of reducing motor (7) is fixedly connected with sprocket wheel (8); The two ends of described driving-chain (6) are fixedly connected on the outer circumference surface of track outer ring (1), and described sprocket wheel (8) to be positioned between driving-chain (6) with track outer ring (1) and to be meshed with driving-chain (8).

3. a kind of disc type photovoltaic tracking device as claimed in claim 1, it is characterized in that, described pitching bracing frame (3) comprises connecting rod (13), fixed beam (14), portable beam (15) and pull bar (16), described fixed beam (14) is transversely fixedly connected on track outer ring (1) and track inner ring (2) with longitudinal, described portable beam (15) is flexibly connected with described fixed beam (14) by connecting rod (13), the top being positioned at described fixed beam (14) of described portable beam (15) level, also for being flexibly connected between described portable beam (15) with connecting rod (13), one end of described pull bar (16) is flexibly connected with portable beam (15), the other end is flexibly connected with pitching driving mechanism, described solar panel (4) is fixedly connected with described portable beam (15) with support plate (18) by pole (17).

4. a kind of disc type photovoltaic tracking device as claimed in claim 3, it is characterized in that, described pitching driving mechanism (5) comprises drive motor (9), gear shaft (10, ) gear (11), tooth bar (12) and rack guide rail (19), described drive motor (9) and rack guide rail (19) are all fixedly connected on the fixed beam (14) of described pitching bracing frame (3), described tooth bar (12) rack guide rail (19) is for being slidably matched, described drive motor is fixedly connected with gear (11) by gear shaft (10), described gear (11) and tooth bar (12) intermesh.