CN219041702U - Photovoltaic tracking bracket and roof photovoltaic power generation system - Google Patents

Abstract

The utility model discloses a photovoltaic tracking bracket and a roof photovoltaic power generation system. The photovoltaic tracking bracket includes: a longitudinal beam for supporting a photovoltaic module, a first arm, and a second arm; wherein, the top of the first arm and the The longitudinal beam is connected, the top of the second support arm is connected with the longitudinal beam, the connection positions of the longitudinal beam and the first support arm, and the connection positions of the longitudinal beam and the second support arm are distributed sequentially along the length direction of the longitudinal beam; the first support arm The inclination angle relative to the installation surface of the photovoltaic tracking support is adjustable, and the inclination angle of the second support arm relative to the installation surface is adjustable, so that the inclination angle of the longitudinal beam relative to the installation surface is adjustable. The above-mentioned photovoltaic tracking support can adjust the inclination angle of the photovoltaic module relative to the installation surface, and the inclination angle of the first arm and the second arm changes during the adjustment process, so that the height of the entire photovoltaic tracking support changes, compared with the existing Compared with advanced technology, it effectively reduces the overall height of the photovoltaic tracking bracket, thereby reducing the negative impact on the architectural landscape.

Description

Photovoltaic tracking bracket and roof photovoltaic power generation system

technical field

The utility model relates to the technical field of roof photovoltaic power generation, in particular to a photovoltaic tracking bracket and a roof photovoltaic power generation system.

Background technique

At present, photovoltaic tracking brackets are commonly used in large-scale photovoltaic power plants, but they have not been widely used in rooftop photovoltaic systems, such as distributed roofs or photovoltaic tile roofs, mainly because photovoltaic tracking brackets have a negative impact on architectural landscapes.

Therefore, how to design the photovoltaic tracking support of the rooftop photovoltaic system to reduce the negative impact on the architectural landscape is an urgent problem to be solved by those skilled in the art.

Utility model content

In view of this, the purpose of this utility model is to provide a photovoltaic tracking support to reduce the negative impact on the architectural landscape. Another object of the present utility model is to provide a roof photovoltaic power generation system comprising the above photovoltaic tracking bracket.

In order to achieve the above object, the utility model provides the following technical solutions:

A photovoltaic tracking bracket, comprising: a longitudinal beam for supporting a photovoltaic module, a first support arm, and a second support arm;

Wherein, the top end of the first support arm is connected to the longitudinal beam, the top end of the second support arm is connected to the longitudinal beam, the connection position of the longitudinal beam and the first support arm, and the The connection positions of the longitudinal beam and the second support arm are sequentially distributed along the length direction of the longitudinal beam;

The inclination angle of the first support arm relative to the installation surface of the photovoltaic tracking bracket is adjustable, and the inclination angle of the second support arm relative to the installation surface is adjustable, so that the longitudinal beam is relatively The inclination angle of the face is adjustable.

Optionally, the first arm and the second arm are arranged on different planes.

Optionally, the photovoltaic tracking bracket further includes a first sliding piece and a second sliding piece, both of which are slidably arranged on the installation surface, and the bottom end of the first arm is connected to the first A slider, the bottom end of the second arm is connected to the second slider, and the sliding track of the first slider is parallel to the sliding track of the second slider.

Optionally, the photovoltaic tracking bracket further includes: a first sliding rail and a second sliding rail both used to be fixed on the installation surface, the first sliding member and the first sliding rail are slidably fitted, so The second sliding member is slidingly matched with the second slide rail.

Optionally, the photovoltaic tracking bracket further includes: a first driving device for driving the first sliding member to slide, and a second driving device for driving the second sliding member to slide.

Optionally, both the first sliding member and the second sliding member are sliding members, and both the first driving device and the second driving device include: a driving component, a transmission mechanism and a lead screw mechanism;

Wherein, the lead screw mechanism includes a first lead screw and a first nut threadedly fitted, and the slider is fixedly connected to the first nut;

The output shaft of the driving component is perpendicular to the first screw, and the output shaft of the driving component drives the first screw to rotate around its axis through the transmission mechanism.

Optionally, both the first sliding member and the second sliding member are sliding members, and both the first driving device and the second driving device include a driving part and a scissor jack, and the driving part passes through The scissor jack drives the slider to slide.

Optionally, the driving part of the first driving device is located on the side of the first arm away from the second arm, and the driving part of the second driving device is located on the side of the second arm away from the side of the first arm;

Alternatively, the driving part of the first driving device is located on the side of the first arm close to the second arm, and the driving part of the second driving device is located on the side of the second arm close to the first arm. side of the arm.

Optionally, the photovoltaic tracking support further includes a first beam and a second beam fixed to the longitudinal beam;

Wherein, both the first beam and the second beam are perpendicular to the longitudinal beam;

The first support arm is directly connected to the longitudinal beam, or the first support arm is indirectly connected to the longitudinal beam through the first cross beam, and the second support arm is directly connected to the longitudinal beam, or The second support arm is indirectly connected to the longitudinal beam through the second cross beam.

Based on the above-mentioned photovoltaic tracking bracket, the utility model also provides a roof photovoltaic power generation system, which includes the photovoltaic tracking bracket described in any one of the above.

In the photovoltaic tracking bracket provided by the utility model, by setting the first arm and the second arm, the top ends of the first arm and the second arm are connected to the longitudinal beam, and the connection position of the two is along the length of the longitudinal beam The directions are distributed sequentially, and the inclination angle of the longitudinal beam relative to the installation surface can be adjusted by adjusting the inclination angle of the first arm and the installation surface, and the inclination angle of the second arm and the installation surface, so that the photovoltaic module can be adjusted relative to the installation surface. Inclination angle, and the inclination angle of the first arm and the second arm changes during the adjustment process, so that the height of the entire photovoltaic tracking bracket changes, compared with the prior art, effectively reducing the overall height of the photovoltaic tracking bracket , thereby reducing the negative impact on the architectural landscape.

At the same time, the photovoltaic tracking bracket provided by the utility model realizes the adjustable inclination angle of the longitudinal beam, which can realize the adjustable inclination angle of all photovoltaic modules arranged on the same longitudinal beam, and can reduce the number of photovoltaic tracking brackets in the whole system , which simplifies the system structure; the above-mentioned photovoltaic tracking support can be as close as possible to the installation surface, which effectively reduces the center of gravity of the entire photovoltaic tracking support and improves the support stability.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description It is only an embodiment of the utility model, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is a schematic structural diagram of a photovoltaic tracking bracket provided by an embodiment of the present invention;

Fig. 2 is a top view of the photovoltaic tracking bracket shown in Fig. 1;

Fig. 3 is a side view of the photovoltaic tracking bracket shown in Fig. 1;

Fig. 4 is a schematic structural diagram of a photovoltaic tracking bracket provided by an embodiment of the present invention;

Fig. 5 is a top view of the photovoltaic tracking bracket shown in Fig. 4;

Fig. 6 is a schematic diagram of the photovoltaic module facing east in the photovoltaic tracking bracket provided by the embodiment of the present invention;

Fig. 7 is a schematic diagram when the photovoltaic module in the photovoltaic tracking bracket provided by the embodiment of the present invention is parallel to the installation surface;

Fig. 8 is a schematic diagram of the photovoltaic module facing west in the photovoltaic tracking bracket provided by the embodiment of the present invention.

In Figure 1-Figure 8:

1 is the longitudinal beam, 2 is the first beam, 3 is the second beam, 4 is the first arm, 5 is the second arm, 6 is the first driving device, 7 is the second driving device, 8 is the first slide 9 is the second sliding piece, 10 is the first sliding rail, 11 is the second sliding rail, 12 is the installation groove, 13 is the driving part, 14 is the fixing piece, 15 is the auxiliary sliding piece, 16 is the second nut, 17 is the second lead screw, 18 is the first connecting member, 19 is the second connecting member, 20 is the third connecting member, 21 is the fourth connecting member, 22 is the photovoltaic module, 23 is the first lead screw, 24 is the second a nut.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

At present, in large-scale photovoltaic power plants, dual-axis tracking brackets or single-axis tracking brackets are usually used to realize photovoltaic modules to track light. Both the dual-axis tracking bracket and the single-axis tracking bracket need to be equipped with a rotating shaft and a supporting shaft supporting the rotating shaft. The height of the supporting shaft is not adjustable, so that the height of the overall bracket is high. The negative impact of the architectural landscape is too great.

In order to solve the above technical problems, the embodiment of the utility model provides a photovoltaic tracking bracket. As shown in Figures 1-5, the photovoltaic tracking support provided in this embodiment includes: a longitudinal beam 1, a first arm 4, and a second arm 5; wherein, the top end of the first arm 4 is connected to the longitudinal beam 1 , the top of the second arm 5 is connected to the longitudinal beam 1, and the connecting positions of the longitudinal beam 1 and the first arm 4 and the connecting positions of the longitudinal beam 1 and the second arm 5 are sequentially distributed along the longitudinal direction of the longitudinal beam 1.

The inclination angle of the above-mentioned first support arm 4 relative to the installation surface of the photovoltaic tracking bracket is adjustable, and the inclination angle of the second support arm 5 relative to the installation surface is adjustable, so that the inclination angle of the longitudinal beam 1 relative to the installation surface is adjustable .

In order to facilitate the adjustment of the inclination angle of the longitudinal beam 1 relative to the installation surface, the top end of the first support arm 4 is hinged to the longitudinal beam 1 , and the top end of the second support arm 5 is hinged to the longitudinal beam 1 .

As shown in FIGS. 6-8 , the above-mentioned longitudinal beam 1 is used to support the photovoltaic module 22 .

The first support arm 4 and the second support arm 5 may be in the shape of a plate or a rod, which is not limited in this embodiment. The first support arm 4 and the second support arm 5 not only play a supporting role, but also play a role in adjusting the inclination angle of the longitudinal beam 1 .

In the photovoltaic tracking bracket provided by the above embodiment, the inclination angle of the longitudinal beam 1 relative to the installation surface is adjusted by adjusting the inclination angle of the first support arm 4 and the installation surface, and the inclination angle of the second support arm 5 and the installation surface, so that The inclination angle of the photovoltaic module 22 relative to the installation surface can be adjusted, and the inclination angle of the first arm 4 and the second arm 5 changes during the adjustment process, so that the height of the entire photovoltaic tracking bracket changes, compared with the prior art Compared with the medium, the overall height of the photovoltaic tracking support is effectively reduced, thereby reducing the negative impact on the architectural landscape.

At the same time, the photovoltaic tracking support provided by the above-mentioned embodiment realizes the adjustable inclination angle of the longitudinal beam 1, and the adjustable inclination angle of all photovoltaic modules 22 arranged on the same longitudinal beam 1 can be realized, which can reduce the photovoltaic tracking of the entire system. The number of brackets simplifies the system structure; the above-mentioned photovoltaic tracking bracket can be as close as possible to the installation surface, which effectively reduces the center of gravity of the entire photovoltaic tracking bracket and improves the support stability.

In the above-mentioned photovoltaic tracking bracket, the first arm 4 and the second arm 5 can be located in the same plane, or can be arranged in different planes. In order to further reduce the height of the whole support, the latter is preferred. Specifically, as shown in FIG. 2 and FIG. 5 , the above-mentioned first support arm 4 and the second support arm 5 are arranged on different planes.

It can be understood that the first arm 4 and the second arm 5 are arranged in different planes, that is, the first arm 4 and the second arm 5 are not parallel, do not intersect, and the first arm 4 is along its length direction. The extension portion does not intersect with the extension portion of the second arm 5 along its length direction. If the first support arm 4 and the second support arm 5 are rod-shaped, then the axis of the first support arm 4 and the axis of the second support arm 5 are in different planes; if the first support arm 4 and the second support arm 5 are both plate shape, the lengthwise centerline of the first support arm 4 and the lengthwise centerline of the second support arm 5 are in different planes.

It should be noted that the lengthwise centerline of the first arm 4 is parallel to the lengthwise direction of the first arm 4 , and the lengthwise centerline of the second arm 5 is parallel to the lengthwise direction of the second arm 5 .

In the case where the first support arm 4 and the second support arm 5 are arranged on different planes, in a specific embodiment, the bottom end of the first support arm 4 and the bottom end of the second support arm 5 can be selected to be hingedly arranged, That is, the first support arm 4 can rotate around the hinge point at its bottom end, and the second support arm 5 can rotate around the hinge point at its bottom end, thus forming a double crank structure.

In another specific embodiment, it is optional that the bottom end of the first support arm 4 and the bottom end of the second support arm 5 are both hinged and slidable, which increases the adjustment range. Specifically, as shown in FIGS. 1-5 , the above-mentioned photovoltaic tracking bracket also includes a first sliding piece 8 and a second sliding piece 9 both used to be slidably arranged on the installation surface, and the bottom end of the first support arm 4 Connected to the first slider 8 , the bottom end of the second arm 5 is connected to the second slider 9 , the sliding track of the first slider 8 is parallel to the sliding track of the second slider 9 . Specifically, the bottom end of the first support arm 4 is hinged to the first sliding member 8 , and the bottom end of the second support arm 5 is hinged to the second sliding member 9 .

It should be noted that the sliding directions of the first sliding member 8 and the second sliding member 9 are all parallel to the installation surface, and when the longitudinal beam 1 is parallel to the installation surface, the sliding directions of the first sliding member 8 and the second sliding member 9 are both Parallel to stringer 1.

In the above embodiment, in order to ensure that the first sliding member 8 and the second sliding member 9 slide along the set direction, the above-mentioned photovoltaic tracking bracket also includes: the first sliding rail 10 and the second sliding rail both used to be fixed on the installation surface 11. The first sliding part 8 is in sliding fit with the first sliding rail 10, and the second sliding part 9 is in sliding fit with the second sliding rail 11.

The types of the first slide rail 10 and the second slide rail 11 can be selected according to actual needs, which is not limited in this embodiment.

In order to facilitate the sliding of the first sliding member 8 and the second sliding member 9, the above-mentioned photovoltaic tracking support further includes: a first driving device 6 for driving the first sliding member 8 to slide, and a second driving device 7 for driving the second sliding member 9 to slide .

In the morning, the first support arm 4 remains at the lowest position, the second driving device 7 pushes the second sliding member 9 to slide to the left, and the second support arm 5 supports the second beam 3, so that the photovoltaic module 22 faces east (left west Right east), as shown in Figure 6; as the direct sunlight angle gradually becomes vertical, the second support arm 5 gradually lowers, and the photovoltaic module 22 tends to be horizontal until at noon, the first crossbeam 2 and the second crossbeam 3 are at the lowest position, as As shown in Fig. 7; in the afternoon, the first driving device 6 drives the first slider 8 to slide to the right, and the first arm 4 lifts the first beam 2, so that the photovoltaic module 22 faces west (left, west, right, east), as shown in the figure As shown in 8, this achieves a very good tracking effect.

The structures of the above-mentioned first driving device 6 and the second driving device 7 may be the same or different. In order to simplify the structure, the structure of the first driving device 6 and the second driving device 7 can be chosen to be the same.

The specific structures of the first driving device 6 and the second driving device 7 are selected according to actual needs.

For ease of description, both the first slider 8 and the second slider 9 are referred to as sliders.

In a specific embodiment, as shown in Fig. 4 and Fig. 5, the first driving device 6 and the second driving device 7 both include: a driving part 13, a transmission mechanism and a lead screw mechanism; The first leading screw 23 and the first nut 24, the sliding member and the first nut 24 are fixedly connected; the output shaft of the driving part 13 is perpendicular to the first leading screw 23, and the output shaft of the driving part 13 drives the first leading screw through a transmission mechanism 23 rotate around its axis.

It can be understood that the above-mentioned first nut 24 is fixedly arranged in its circumferential direction, that is, the first nut 24 will not rotate around the first lead screw 23 . The above-mentioned sliding member and the first nut 24 may be of an integrated structure or may be of a split structure. In order to simplify the structure, the sliding member and the first nut 24 can be selected as an integrated structure.

As shown in FIG. 4 , taking the first driving device 6 as an example, the first sliding member 8 is fixedly connected to the first nut 24 . In order to simplify the structure, the first sliding member 8 and the first nut 24 are integrated, that is, the first sliding member 8 is integrated with the first nut 24 .

The type of the above-mentioned transmission mechanism is selected according to actual needs, for example, the transmission mechanism is a gear transmission mechanism, a worm gear mechanism, etc., which is not limited in this embodiment.

In another specific embodiment, as shown in FIG. 2 , the above-mentioned first driving device 6 and the second driving device 7 can be selected to both include a driving part 13 and a scissor-like jack, and the driving part 13 drives the slider through a similar scissor-type jack. slide.

Specifically, the above-mentioned scissor jack includes: a second lead screw 17, a second nut 16 threaded with the second lead screw 17, a fixing member 14 fixed to the second lead screw 17, for being slidably arranged on the mounting Auxiliary slider 15 , first connecting member 18 , second connecting member 19 , third connecting member 20 , and fourth connecting member 21 .

Taking the first driving device 6 as an example, the first sliding member 8 and the auxiliary sliding member 15 are respectively located on both sides of the second lead screw 17, and the fixing member 14 and the second nut 16 are respectively located at both ends of the second lead screw 17; One end of a connecting member 18 is hinged on the second nut 16, the other end of the first connecting member 18 is hinged on the auxiliary slider 15, one end of the second connecting member 19 is hinged on the second nut 16, and the other end of the second connecting member 19 Hinged to the first sliding piece 8, one end of the third connecting member 20 is hinged to the fixing piece 14, the other end of the third connecting member 20 is hinged to the auxiliary sliding piece 15, one end of the fourth connecting member 21 is hinged to the fixing piece 14, the second The other ends of the four connecting members 21 are hinged to the first slider 8; the driving part 13 drives the second lead screw 17 to rotate around its axis. It can be understood that the second lead screw 17 is perpendicular to the sliding direction of the first sliding member 8 .

For the specific structure of the second driving device 7 , refer to the first driving device 6 , which will not be repeated herein.

In the above embodiment, by using a scissor-like jack, the first driving device 6 and the second driving device 7 are placed horizontally, that is, the length direction of the first driving device 6 and the second driving device 7 is parallel to the length of the photovoltaic module 22 direction, so that the entire photovoltaic tracking bracket can be covered by the photovoltaic module 22, reducing the impact of the photovoltaic tracking bracket on the appearance.

It should be noted that the length direction of the first driving device 6 and the second driving device 7 is the length direction of the second lead screw 17 .

In the above-mentioned photovoltaic tracking bracket, the driving part 13 of the first driving device 6 is located on the side of the first arm 4 away from the second arm 5, and the driving part 13 of the second driving device 7 is located on the side of the second arm 5 away from the first arm. One side of the arm 4; or, the drive part 13 of the first drive device 6 is located at the side of the first support arm 4 close to the second support arm 5, and the drive part 13 of the second drive device 7 is located at the side of the second support arm 5 close to the second support arm 5 One side of arm 4.

If above-mentioned first driving device 6 and second driving device 7 all comprise: driving part 13, transmission mechanism and lead screw mechanism, then because the volume of driving part 13 and transmission mechanism is less, can select the driving part of first driving device 6 13 is located on the side of the first arm 4 close to the second arm 5 , and the driving part 13 of the second driving device 7 is located on the side of the second arm 5 close to the first arm 4 , as shown in FIG. 5 .

If the above-mentioned first driving device 6 and the second driving device 7 all include a driving part 13 and a scissor jack, since the volume of the first driving device 6 and the second driving device 7 is relatively large, in order to improve stability, the first driving device can be selected. The driving part 13 of the driving device 6 is positioned at the side of the first support arm 4 away from the second support arm 5, and the driving part 13 of the second driving device 7 is positioned at the side of the second support arm 5 away from the first support arm 4, as shown in Fig. 2.

In order to facilitate the installation of photovoltaic modules 22, as shown in Figures 1, 3, 4, and 6-8, the above-mentioned photovoltaic tracking bracket also includes a first beam 2 and a second beam 3 fixed to the longitudinal beam 1; Both the first beam 2 and the second beam 3 are perpendicular to the longitudinal beam 1 , and both the first beam 2 and the second beam 3 are provided with installation grooves 12 for installing photovoltaic modules 22 .

In the above structure, the first support arm 4 is directly connected to the longitudinal beam 1, or the first support arm 4 is indirectly connected to the longitudinal beam 1 through the first cross beam 2, and the second support arm 5 is directly connected to the longitudinal beam 1, or the second support arm 5 The arm 5 is indirectly connected to the longitudinal beam 1 via the second cross beam 3 . In order to facilitate installation, especially when the first support arm 4 and the second support arm 5 are arranged on different planes, it is preferable to select the first support arm 4 to be indirectly connected to the longitudinal beam 1 through the first beam 2, and the second support arm 5 to be connected to the longitudinal beam through the second beam. 3 is indirectly connected to the longitudinal beam 1. Specifically, the first support arm 4 is connected to the first beam 2 , and the second support arm 5 is connected to the second beam 3 .

In order to facilitate adjustment, the first support arm 4 is directly hinged to the longitudinal beam 1, or the first support arm 4 is indirectly hinged to the longitudinal beam 1 through the first beam 2, and the second support arm 5 is directly hinged to the longitudinal beam 1, or the second support arm 5. The arm 5 is indirectly hinged to the longitudinal beam 1 via the second cross beam 3 . As shown in Figure 1, in order to facilitate installation, especially when the first support arm 4 and the second support arm 5 are arranged on different planes, it is preferable to select the first support arm 4 to be indirectly hinged to the longitudinal beam 1 and the second support arm 2 through the first beam 2. The arm 5 is indirectly hinged to the longitudinal beam 1 via the second cross beam 3 . Specifically, the first arm 4 is hinged to the first beam 2 , and the second arm 5 is hinged to the second beam 3 .

In the above-mentioned photovoltaic tracking bracket, the longitudinal beam 1 can be selected to be parallel to the width direction of the photovoltaic module 22 , and correspondingly, the length direction of the photovoltaic module 22 is perpendicular to the longitudinal beam 1 .

In the above-mentioned photovoltaic tracking bracket, when the inclination angle of the first arm 4 and the second arm 5 relative to the installation surface changes, the height of the entire photovoltaic tracking bracket will also change. As shown in FIG. 6 , based on the distribution of directions from left to west and right to east, when the photovoltaic module 22 faces east, the distance from the right end of the longitudinal beam 1 to the installation surface is the smallest, and the distance from the top of the longitudinal beam 1 to the installation surface is the largest; as shown in FIG. As shown in 7, when the photovoltaic module 22 is parallel to the installation surface, the installation surface is parallel to the horizontal direction in FIG. As shown in FIG. 8 , based on the distribution of left, west and right east directions, when the photovoltaic module 22 faces west, the distance from the right end of the longitudinal beam 1 to the installation surface is the largest, and the distance from the top of the longitudinal beam 1 to the installation surface is the smallest.

It should be noted that the height of the photovoltaic tracking bracket is the distance from the highest position of the entire photovoltaic tracking bracket to the installation surface.

In order to effectively reduce the negative impact on the architectural landscape, the height of the photovoltaic tracking support should be reduced as much as possible.

The effect of the photovoltaic tracking support provided by the above-mentioned embodiments is particularly remarkable when it is applied to a rooftop photovoltaic power generation system, but the application of the above-mentioned photovoltaic tracking support is not limited to the rooftop photovoltaic power generation system, and the above-mentioned photovoltaic tracking support can also be applied to ground photovoltaic power plants or water surface floating Photovoltaic power station.

Based on the photovoltaic tracking bracket provided in the above embodiment, this embodiment also provides a roof photovoltaic power generation system, which includes the photovoltaic tracking bracket described in the above embodiment.

Since the photovoltaic tracking bracket described in the above embodiment has the above technical effects, and the above-mentioned rooftop photovoltaic power generation system includes the above-mentioned photovoltaic tracking bracket, the above-mentioned rooftop photovoltaic power generation system also has corresponding technical effects, which will not be repeated here.

The type of the above-mentioned rooftop photovoltaic power generation system can be selected according to actual needs. For example, the above-mentioned rooftop photovoltaic power generation system is a distributed rooftop photovoltaic power generation system or a photovoltaic tile roof system, which is not limited in this embodiment.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A photovoltaic tracking bracket, characterized in that it includes: a longitudinal beam for supporting photovoltaic modules, a first arm, and a second arm; Wherein, the top end of the first support arm is connected to the longitudinal beam, the top end of the second support arm is connected to the longitudinal beam, the connection position of the longitudinal beam and the first support arm, and the The connection positions of the longitudinal beam and the second support arm are sequentially distributed along the length direction of the longitudinal beam; The inclination angle of the first support arm relative to the installation surface of the photovoltaic tracking bracket is adjustable, and the inclination angle of the second support arm relative to the installation surface is adjustable, so that the longitudinal beam is relatively The inclination angle of the face is adjustable. 2 . The photovoltaic tracking support according to claim 1 , wherein the first arm and the second arm are arranged on different planes. 3. The photovoltaic tracking support according to claim 2, further comprising a first sliding piece and a second sliding piece both for being slidably arranged on the mounting surface, and the first support arm The bottom end is connected to the first slider, the bottom end of the second arm is connected to the second slider, and the sliding track of the first slider is parallel to the sliding track of the second slider. 4. The photovoltaic tracking bracket according to claim 3, further comprising: a first sliding rail and a second sliding rail both used to be fixed on the installation surface, the first sliding member and the The first slide rail is in sliding fit, and the second sliding member is in sliding fit with the second slide rail. 5 . The photovoltaic tracking bracket according to claim 3 , further comprising: a first driving device for driving the first sliding member to slide, and a second driving device for driving the second sliding member to slide. 6. The photovoltaic tracking support according to claim 5, characterized in that, both the first sliding member and the second sliding member are sliding members, and both the first driving device and the second driving device include : drive components, transmission mechanism and lead screw mechanism; Wherein, the lead screw mechanism includes a first lead screw and a first nut threadedly fitted, and the slider is fixedly connected to the first nut; The output shaft of the driving component is perpendicular to the first screw, and the output shaft of the driving component drives the first screw to rotate around its axis through the transmission mechanism. 7. The photovoltaic tracking bracket according to claim 5, characterized in that, both the first sliding member and the second sliding member are sliding members, and both the first driving device and the second driving device include A driving part and a scissor-like jack, the driving part drives the slider to slide through the scissor-like jack. 8. The photovoltaic tracking bracket according to claim 6 or 7, characterized in that, The driving part of the first driving device is located on the side of the first arm away from the second arm, and the driving part of the second driving device is located on the side of the second arm away from the first arm. side of Alternatively, the driving part of the first driving device is located on the side of the first arm close to the second arm, and the driving part of the second driving device is located on the side of the second arm close to the first arm. side of the arm. 9. The photovoltaic tracking support according to claim 1, further comprising a first beam and a second beam fixed to the longitudinal beam; Wherein, both the first beam and the second beam are perpendicular to the longitudinal beam; The first support arm is directly connected to the longitudinal beam, or the first support arm is indirectly connected to the longitudinal beam through the first cross beam, and the second support arm is directly connected to the longitudinal beam, or The second support arm is indirectly connected to the longitudinal beam through the second cross beam. 10. A roof photovoltaic power generation system, characterized by comprising the photovoltaic tracking support according to any one of claims 1-9.

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