CN220359105U

CN220359105U - Photovoltaic support

Info

Publication number: CN220359105U
Application number: CN202321241605.0U
Authority: CN
Inventors: 姚全忠; 周晓峰; 姜庆堂
Original assignee: Shanghai Hanxiang New Energy Technology Co ltd
Current assignee: Shanghai Hanxiang New Energy Technology Co ltd
Priority date: 2023-05-22
Filing date: 2023-05-22
Publication date: 2024-01-16
Anticipated expiration: 2033-05-22

Abstract

The utility model discloses a photovoltaic bracket, which comprises a main beam, a plurality of upright posts, wherein the upright posts are hinged with the main beam, one upright post is provided with a driving device, the photovoltaic bracket further comprises an eccentric moment balancing mechanism, the eccentric moment balancing mechanism is arranged on the upright posts, and the eccentric moment balancing mechanism is used for balancing eccentric moment when the photovoltaic bracket is inclined. The utility model balances the eccentric moment when the bracket rotates by arranging the eccentric moment balancing mechanism, so that the driving device does not need to overcome the eccentric moment of the bracket, the driving force required to be output by the driving device is reduced, and the manufacturing cost of equipment is reduced. The utility model is provided with the eccentric moment balancing mechanism, and reduces the current peak value of the system in operation by balancing the eccentric moment when the bracket rotates, and the current peak value of the motor is reduced, so that the requirement of the system on the controller can be reduced, and the manufacturing cost of the equipment is further reduced.

Description

Photovoltaic support

Technical Field

The utility model belongs to the technical field of photovoltaic equipment manufacturing, and particularly relates to a photovoltaic bracket.

Background

At present, the cost pressure of the photovoltaic tracking bracket is larger and larger, the cost saved by reducing the weight of the steel structure is very limited on the premise of ensuring the structural strength of the photovoltaic tracking system, and the cost proportion of the driving device in the whole photovoltaic tracking system is higher. Therefore, how to optimize the driving device has become an effective way to achieve cost reduction.

When the photovoltaic tracking system operates, the resistance mainly overcome by the driving device is as follows: the driving device can drive the photovoltaic tracking system to normally operate only by overcoming all the resistance at the same time.

At present, the prior Chinese patent document with the publication number of CN 110597302A discloses a photovoltaic tracker system, which comprises a stand column, a rotor, a driving mechanism, a swinging rod and a guide rod, wherein the swinging guide rod mechanism has quick return characteristics and mechanism dead points, and the high wind response speed of the system is improved by utilizing the mechanism dead points and the quick return characteristics. However, this patent does not take effective measures to balance the eccentric moment, and therefore, only a driving device with a large output moment can be used, resulting in high cost of the driving device; when the photovoltaic tracking system operates to the maximum angle, the eccentric moment generated by the component is larger, the driving device is required to provide larger driving force for overcoming the eccentric moment, the current of the motor is larger at the moment, the controller is required to adapt to larger current peak value, and the cost is further increased.

Disclosure of Invention

Aiming at the technical problems, the utility model provides the photovoltaic bracket which can balance the eccentric moment when the system rotates, reduce the driving force required to be output by the driving device and the current peak value when the system operates, thereby reducing the manufacturing cost of equipment.

The technical aim of the utility model is realized by the following technical scheme:

the utility model provides a photovoltaic support, includes girder, many stands, and the stand is articulated with the girder, and drive arrangement is installed to one of them stand, photovoltaic support still includes eccentric moment balance mechanism, and eccentric moment balance mechanism sets up on the stand, and eccentric moment balance mechanism is used for the balance the eccentric moment when photovoltaic tracking support inclines.

The eccentric moment balancing mechanisms are arranged in an even number, and are symmetrically installed by taking the upright posts where the driving device is located as symmetry axes.

The moment balance mechanism comprises a spring upper connecting piece, a spring and a spring lower connecting piece, wherein two springs are connected between the spring upper connecting piece and the spring lower connecting piece, the two springs are symmetrically arranged, and the spring lower connecting piece is fixed on the upright post.

The spring upper connecting piece and the spring lower connecting piece are of symmetrical structures.

Further set up, the first end of connecting piece on the spring be fixed with down the staple bolt, down the staple bolt and pass through the fastener and connect the staple bolt, the girder be fixed in down between staple bolt and the last staple bolt.

Further set up, last staple bolt all be the arc with lower staple bolt, and with girder outer wall adaptation.

Further set up, the spring under connecting piece include the mainboard, mainboard one side is equipped with the flank, the flank is connected and is parallel with the stand, the mainboard is perpendicular with the flank.

The spring is further arranged, one spring is connected between the second end of the connecting piece on the spring and one end of the main board, and one spring is connected between the third end of the connecting piece on the spring and the other end of the main board.

In summary, the utility model has the following beneficial effects:

1. according to the utility model, the eccentric moment balance mechanism is arranged to balance the eccentric moment when the photovoltaic bracket rotates, so that the driving device does not need to overcome the eccentric moment of the photovoltaic bracket, the driving force required to be output by the driving device is reduced, and the manufacturing cost of equipment is reduced.

2. According to the utility model, the eccentric moment balance mechanism is arranged, the current peak value of the photovoltaic bracket during operation is reduced by balancing the eccentric moment of the photovoltaic bracket during rotation, and the current peak value of the motor is reduced, so that the requirement of the photovoltaic bracket on the controller can be reduced, and the manufacturing cost of equipment is further reduced.

3. According to the utility model, the eccentric moment balance mechanisms are arranged on the upright posts at two sides of the driving device, so that the balance moment can be applied to the main beam, and the photovoltaic bracket works more smoothly.

Drawings

FIG. 1 is a schematic structural view of a photovoltaic bracket of a preferred embodiment;

FIG. 2 is a schematic structural view of an eccentric moment balancing mechanism;

FIG. 3 is a front view of the eccentric torque balancing mechanism;

FIG. 4 is a schematic view of a photovoltaic bracket in an inclined state;

FIG. 5 is a state diagram of the eccentric moment balancing mechanism with the photovoltaic bracket in an inclined state;

FIG. 6 is a schematic structural view of the upper anchor ear;

FIG. 7 is a schematic view of the structure of the sprung connection;

FIG. 8 is a schematic view of the structure of the unsprung attachment;

fig. 9 is a schematic structural view of the driving device.

Reference numeral, 1, main beam; 2. a column; 3. a driving device; 31. a motor; 32. a drive shaft; 4. an eccentric moment balancing mechanism; 41. a sprung connection; 411. a lower hoop; 412. a fastener; 413. an upper hoop; 42. a spring; 43. an under-spring connector; 431. a main board; 432. a side flap.

Detailed Description

The preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, a photovoltaic bracket of a preferred embodiment comprises a main beam 1 and a plurality of upright posts 2, wherein the upright posts 2 are hinged with the main beam 1, one upright post 2 is provided with a driving device 3, the photovoltaic bracket further comprises an eccentric moment balancing mechanism 4, the eccentric moment balancing mechanism 4 is arranged on the upright posts 2, and the eccentric moment balancing mechanism 4 is used for balancing eccentric moment when the photovoltaic tracking bracket is inclined. The eccentric moment balance mechanisms 4 are arranged in an even number, and are symmetrically installed by taking the upright posts 2 where the driving device 3 is positioned as symmetry axes.

As shown in fig. 2 and 3, the moment balance mechanism 4 includes a spring-up connector 41, a spring 42, and a spring-down connector 43, wherein two springs 42 are connected between the spring-up connector 41 and the spring-down connector 43, the two springs 42 are symmetrically arranged, and the spring-down connector 43 is fixed on the upright post 2. The sprung connecting piece 41 and the unsprung connecting piece 43 are symmetrical structures. The spring 42 provides a spring force for balancing the system off-center moment.

As shown in fig. 2, 6 and 7, a lower anchor ear 411 is fixed at a first end of the spring upper connector 41, the lower anchor ear 411 is connected with an upper anchor ear 413 through a fastener 412, and the main beam 1 is fixed between the lower anchor ear 411 and the upper anchor ear 413. The upper anchor ear 413 and the lower anchor ear 411 are arc-shaped and are matched with the outer wall of the main beam 1. The spring upper connecting piece 41 is regulated on the main beam 1 through the lower hoop 411 and the upper hoop 413, so that quick disassembly and assembly are realized, the loading and unloading efficiency of the eccentric moment balancing mechanism 4 is improved, and meanwhile, the maintenance and the replacement of the eccentric moment balancing mechanism are convenient.

As shown in fig. 2 and 8, the unsprung connector 43 includes a main plate 431, one surface of the main plate 431 is provided with a side wing 432, the side wing 432 is connected with the upright 2 and parallel, and the main plate 431 is perpendicular to the side wing 432. The spring lower connecting piece 43 is fixed on the upright post 2 by adopting a bolt, so that the quick installation and the disassembly of the spring lower connecting piece 43 are realized, the loading and unloading efficiency of the eccentric moment balancing mechanism 4 is further improved, and the maintenance and the replacement of the eccentric moment balancing mechanism are convenient. A spring 42 is connected between the second end of the sprung connecting member 41 and one end of the main board 431, and a spring 42 is connected between the third end of the sprung connecting member 41 and the other end of the main board 431.

As shown in fig. 9, the driving device 3 includes a motor 31 and a driving shaft 32, the driving shaft 32 is connected with the motor 31, the driving shaft 32 is fixedly connected with the main beam 1, and the driving shaft 32 is driven to rotate by the motor 31 so as to drive the main beam 1 to move.

When the preferred embodiment photovoltaic bracket is in a horizontal state, as shown in fig. 1, no eccentric moment is generated, and the spring 42 is in an unstretched original state, generating no force.

As shown in fig. 4 and 5, when the photovoltaic bracket of the preferred embodiment is in an inclined state, due to the gravity, the photovoltaic module mounted on the main beam 1 will generate an eccentric moment on the main beam 1, and at this time, the spring 42 is stretched to generate an elastic force, which provides a reverse moment opposite to the eccentric moment, and the eccentric moment balances with the reverse moment, so that the photovoltaic bracket is restored to a horizontal state.

When the photovoltaic bracket of the preferred embodiment is in a non-horizontal state, since the photovoltaic module has an eccentric distance relative to the rotation center of the main beam 1, an eccentric moment is generated, at this time, the spring 42 is pulled by the spring connection member 41, the spring 42 is in a stretched state, and the spring 42 applies an elastic force along the axis direction of the spring connection member 41 to the end, which is far away from the main beam 1, so as to drive the photovoltaic module to recover to the horizontal state. Therefore, the moment applied to the main beam 1 by the elastic force of the two springs 42 is balanced with the eccentric moment of the photovoltaic bracket, the driving device 3 does not need to overcome the eccentric moment, and the driving force required to be output by the driving device 3 and the current peak value during the operation of the photovoltaic bracket are reduced, so that the cost of the photovoltaic bracket is reduced.

The above-described embodiments are merely illustrative of the present utility model and not restrictive, and those skilled in the art, having read the present specification, may make modifications to the present embodiments without creative contribution as required, but are protected by patent laws within the scope of the claims of the present utility model.

Claims

1. The photovoltaic bracket comprises a main beam (1) and a plurality of upright posts (2), wherein the upright posts (2) are hinged with the main beam (1), and one upright post (2) is provided with a driving device (3), and the photovoltaic bracket is characterized by further comprising an eccentric moment balancing mechanism (4), wherein the eccentric moment balancing mechanism (4) is arranged on the upright posts (2), and the eccentric moment balancing mechanism (4) is used for balancing eccentric moment when the photovoltaic bracket is inclined;

the eccentric moment balance mechanism (4) comprises a spring upper connecting piece (41), springs (42) and a spring lower connecting piece (43), wherein two springs (42) are connected between the spring upper connecting piece (41) and the spring lower connecting piece (43), the two springs (42) are symmetrically arranged, and the spring lower connecting piece (43) is fixed on the upright post (2).

2. The photovoltaic bracket according to claim 1, wherein the eccentric moment balance mechanisms (4) are arranged in an even number, and are symmetrically arranged by taking the upright post (2) where the driving device (3) is positioned as a symmetry axis.

3. The photovoltaic bracket according to claim 1, wherein the sprung connection (41) and the unsprung connection (43) are symmetrical.

4. A photovoltaic bracket according to claim 3, characterized in that the first end of the spring upper connecting piece (41) is fixed with a lower anchor ear (411), the lower anchor ear (411) is connected with an upper anchor ear (413) through a fastener (412), and the main beam (1) is fixed between the lower anchor ear (411) and the upper anchor ear (413).

5. The photovoltaic bracket according to claim 4, wherein the upper anchor ear (413) and the lower anchor ear (411) are arc-shaped and are adapted to the outer wall of the main beam (1).

6. A photovoltaic bracket according to claim 3, characterized in that the unsprung connector (43) comprises a main plate (431), wherein one side of the main plate (431) is provided with a side wing (432), the side wing (432) is connected with the upright post (2) and parallel, and the main plate (431) is perpendicular to the side wing (432).

7. The photovoltaic bracket according to claim 6, wherein the second end of the spring-loaded connector (41) is connected to one end of the main board (431) by a spring (42), and the third end of the spring-loaded connector (41) is connected to the other end of the main board (431) by the spring (42).