CN215835379U - Adjustable photovoltaic support in inclination and balanced braced system of photovoltaic - Google Patents

Abstract

The utility model provides an inclination-angle-adjustable photovoltaic support which comprises a main beam extending along the east-west direction and a strut capable of rotatably supporting the main beam, wherein at least two purlines distributed along the east-west direction are supported on the main beam, and the strut comprises a stand column for providing a supporting foundation. Wherein the column further includes a support extending upwardly from the column, the support having a north side at the north side, the support further providing a hinge location. The main beam is provided with an intermediate beam section positioned between two adjacent purlins, the main beam is rotatably supported on the pillar through the hinge joint of the intermediate beam section, the south side beam surface of the main beam positioned on the south side is in a horizontal state that at least two purlins are horizontally arranged through abutting against the north side surface of the bearing piece, and the main beam is positioned below the hinge joint in the horizontal state. The utility model further provides a photovoltaic balance supporting system adopting the inclination-angle-adjustable photovoltaic support. This adjustable photovoltaic support in inclination can realize supporting photovoltaic module's balance.

Description

Adjustable photovoltaic support in inclination and balanced braced system of photovoltaic

Technical Field

The utility model relates to a photovoltaic support with an adjustable inclination angle and a photovoltaic balance supporting system.

Background

In a photovoltaic power generation system, a photovoltaic support with an adjustable inclination angle is the most common photovoltaic array support, and the support realizes maximization of the radiation quantity received by the illuminated surface of a photovoltaic module all the year around by periodically adjusting the installation inclination angle of the photovoltaic module facing south based on the change rule of the motion of the sun all the year around, so that the annual accumulated power generation quantity of the photovoltaic module is further improved. The method of adjusting the installation inclination angle of the photovoltaic module at intervals can ensure that the annual power generation amount of the photovoltaic module is 5-6% more than that of a photovoltaic bracket with a single fixed inclination angle.

Because the photovoltaic support needs to rotate around the east-west axis, a main beam is arranged in the middle to support the photovoltaic module, the photovoltaic module is mounted on the main beam and rotates around the axis by taking the bottom center of the main beam as the axis, for example, refer to chinese utility model patent CN 209517028U. In the photovoltaic support with the structure, as the photovoltaic module is arranged above the main beam, a large eccentric bending moment can be generated when the photovoltaic module rotates around the shaft by taking the center of the bottom of the main beam as an axis, which brings great difficulty to the regular adjustment of the inclination angle of the photovoltaic module. For example, in the chinese utility model CN209517028U, a counterweight unit is additionally provided for balancing.

Therefore, it is desirable to provide a photovoltaic support with adjustable inclination angle, which can realize the balance support of the photovoltaic module through the structure itself without additional balancing device such as a counterweight unit.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a photovoltaic support with an adjustable inclination angle, which can realize the balanced support of a photovoltaic module through a structure without additionally arranging a balancing device.

Another object of the present invention is to provide a photovoltaic balance support system, which can facilitate self-balancing without additional balancing devices.

The utility model provides an inclination-angle-adjustable photovoltaic support which comprises a main beam extending along the east-west direction and a strut rotatably supporting the main beam, wherein at least two purlines distributed along the east-west direction are supported on the main beam, and the strut comprises a stand column for providing a supporting foundation. Wherein the post further comprises a support extending upwardly from the upright, the support having a north side located on a north side, the support further providing a hinge location. The main beam is provided with an intermediate beam section positioned between two adjacent purlins, the main beam is rotatably supported on the pillar through the hinge joint of the intermediate beam section, the south side beam surface of the main beam positioned on the south side is in a horizontal state that the at least two purlins are horizontally placed through abutting against the north side surface of the bearing piece, and the main beam is positioned below the hinge joint in the horizontal state.

In one embodiment, the center of gravity of the main beam is offset to the north side relative to the hinge location.

In one embodiment, the center of the cross-section of the main beam coincides with the center of gravity of the main beam. The cross-sectional center of the main beam is offset to a north side by less than half of a north-south dimension of the main beam compared to the hinge location.

In one embodiment, the adjustable-tilt photovoltaic mount is configured to allow the main beam to rotate from the horizontal position to a tilted position in which the purlin is tilted relative to the horizontal.

In one embodiment, the support includes a first plate portion fixed to a north side surface of an upper end portion of the pillar, and a second plate portion connected to an upper end of the first plate portion, the second plate portion having a recess recessed toward a south side, a bottom surface of the recess constituting a portion where the north side surface of the support abuts the south side sill surface, an upper end of the second plate portion on an upper side of the recess providing the hinge position.

In one embodiment, the first plate portion of the support is fixed to the north side surface of the pillar by a fastener passing through a waist hole to be adjustable up and down.

In one embodiment, the photovoltaic support with adjustable inclination further comprises a support member having a connecting plate and a vertical plate protruding upward from the connecting plate, the support member is fixedly connected to the upper beam surface of the main beam through the connecting plate and is hinged to the hinge position of the support member through the vertical plate, and thereby the main beam is rotatably supported on the pillar.

In one embodiment, the photovoltaic support with the adjustable inclination angle further comprises a support member, the support member is provided with a support portion and a pair of connecting portions, the support portion is used for connecting the support portion to the connecting plates, the support portion supports the lower beam surface of the main beam, and the connecting portions are respectively located on the south side and the north side of the main beam.

The utility model also provides a photovoltaic balance support system which comprises a photovoltaic module and the inclination-angle-adjustable photovoltaic support. The photovoltaic module is supported on at least two purlines of the photovoltaic bracket with the adjustable inclination angle; and the photovoltaic module is arranged in such a way that the center of gravity of a rotating part of the bracket coincides with the hinge position, wherein the rotating part of the bracket is composed of the main beam and a rotating part rotating along with the main beam.

In the photovoltaic support with the adjustable inclination angle, the hinge position is arranged between the main beam and the photovoltaic assembly, so that the weight of the photovoltaic assembly supported by the main beam can be balanced by the weight of the main beam, the center of gravity of the rotating part of the support is easily coincided with the rotating axis, and the balance support of the whole rotating process is realized. That is, above-mentioned adjustable photovoltaic support in inclination can realize the balanced support to photovoltaic module through the structure itself, and need not to establish balancing unit in addition. In addition, in the photovoltaic support with the adjustable inclination angle, the characteristic that the photovoltaic support with the adjustable inclination angle rotates towards the south in a single direction is fully utilized, the supporting piece is utilized to provide the hinge position, meanwhile, the northbound side surface of the photovoltaic support is abutted to the main beam, the horizontal state is kept, and the stable support of the horizontal state is guaranteed.

Furthermore, in the photovoltaic support with the adjustable inclination angle, the center of the cross section of the main beam deviates from the north-south direction of the hinge position by within a half of the north-south dimension of the hinge position, so that the support part can provide the hinge position above the main beam and is not easy to touch the photovoltaic module when rotating to a required angle, the interference of the support device of the photovoltaic support on the arrangement of the photovoltaic module on the main beam is effectively avoided, and the arrangement of the photovoltaic module on the main beam is more compact and reasonable.

The photovoltaic balance supporting system adopts the photovoltaic support with the adjustable inclination angle, and the arrangement of the photovoltaic components can simply and conveniently realize the complete coincidence of the gravity center and the rotating axis, so that the self balance of the photovoltaic balance supporting system can be conveniently realized, a balancing device is not required to be additionally arranged, and the balance support of the photovoltaic components is also conveniently realized.

Drawings

The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:

fig. 1 is a south side view of an exemplary photovoltaic balanced support system according to the present invention.

Fig. 2 is a west side view illustrating an exemplary photovoltaic balanced support system according to a first embodiment in a horizontal state.

Fig. 3 is a west side view showing the photovoltaic balanced support system of fig. 2 in an inclined state.

Fig. 4A and 4B are a plan view and a side view, respectively, of an exemplary support.

Fig. 5A and 5B are a plan view and a side view, respectively, of another exemplary support.

Fig. 6A and 6B are a plan view and a side view, respectively, of an exemplary spindle.

Fig. 7A and 7B are a plan view and a side view, respectively, of an exemplary support.

Fig. 8A and 8B are a plan view and a side view, respectively, of a retainer portion of an exemplary retainer.

FIG. 9 is a schematic view of another exemplary susceptor.

Fig. 10 is a west side view illustrating an exemplary photovoltaic balanced support system according to a second embodiment in a horizontal state.

Fig. 11 is a west side view illustrating an exemplary photovoltaic balanced support system according to a second embodiment in an inclined state.

Fig. 12A, 12B, 12C, and 12D are schematic views showing the cross section of the main beam being square, circular, hexagonal, and D-shaped, respectively.

Fig. 13 is a west side view illustrating another exemplary photovoltaic balanced support system in a horizontal position.

Fig. 14 is a west side view illustrating the exemplary photovoltaic balanced support system of fig. 13 in an inclined state.

Detailed Description

The present invention will be further described with reference to the following detailed description and the accompanying drawings, wherein the following description sets forth further details for the purpose of providing a thorough understanding of the present invention, but it is apparent that the present invention can be embodied in many other forms other than those described herein, and it will be readily apparent to those skilled in the art that the present invention may be embodied in many different forms without departing from the spirit or scope of the utility model.

For example, a first feature described later in the specification may be formed over or on a second feature, and may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact. Further, when a first element is described as being coupled or coupled to a second element, the description includes embodiments in which the first and second elements are directly coupled or coupled to each other, as well as embodiments in which one or more additional intervening elements are added to indirectly couple or couple the first and second elements to each other.

First embodiment

Fig. 1 to 9 show an example configuration of a photovoltaic balanced support system 100 according to a first embodiment of the present invention. The photovoltaic balance support system 100 includes a photovoltaic module 20 and an adjustable inclination photovoltaic support 10. That is, fig. 1 to 9 also show an example configuration of the tilt-angle-adjustable photovoltaic support 10 according to the first embodiment of the present invention. It is to be understood that the drawings are designed solely for purposes of illustration and not as an isometric view, and that no limitation on the scope of the utility model is intended.

As shown in fig. 1, the photovoltaic support 10 with adjustable inclination angle includes a main beam 1 extending in the east-west direction and a strut 2 rotatably supporting the main beam 1. At least two purlins 3 distributed along the east-west direction are supported on the main beam 1. In the figure, each purlin (3) may extend in a north-south direction (perpendicular to the plane of the paper in fig. 1), and the purlins (3) are spaced apart in the east-west direction, that is, the purlins (3) are distributed in the east-west direction. It is to be understood that the description herein of "in" a direction means substantially "in" a direction, i.e., a range of tolerances may be allowed, for example, an intersection angle within 20 ° is allowed, and further an intersection angle within 10 ° is allowed. Although not shown, the photovoltaic support 10 with adjustable inclination angle may include at least two columns 2 distributed along the east-west direction, and the main beam 1 may cross the at least two columns 2.

The post 2 includes a post 4 that provides a supporting base. The uprights 4 may stand on the ground G0 to provide a supporting base.

The mast 2 further comprises a support 5. The support 5 extends upwardly from the upright 4. Referring to fig. 2, support 5 has a north facing side 51 on the north side, and support 5 also provides hinge location H0.

Referring to fig. 1, a main beam 1 has an intermediate beam section 15 between two adjacent purlins 3. The main beam 1 is rotatably supported to the pillar 2 by the intermediate beam section 15 being hinged at hinge position H0. The hinge position H0 can be considered as the position of the main beam 1 relative to the hinge axis or rotation axis (also called hinge center, rotation axis center, etc.) of the pillar 2, which can be shown as a point in fig. 2. In the photovoltaic balanced support system 100, the photovoltaic module 20 is supported on the at least two purlins 3 of the photovoltaic bracket 10 with adjustable inclination angle.

The south side beam face 11 of the main beam 1 on the south side is in a horizontal state in which the aforementioned at least two purlins 3 are horizontally placed by abutting against the north-facing side face 51 of the support 5, as shown in fig. 2. In the horizontal position shown in fig. 2, the main beam 1 is located below the hinge position H0. The horizontal state in which the at least two purlins 3 are horizontally placed, that is, the horizontal state in which the photovoltaic modules 20 supported on the purlins 3 are horizontally laid, may also be referred to as a horizontal state, at this time, an installation inclination angle θ (shown in fig. 3, that is, an included angle between a surface of the photovoltaic module 20 and a horizontal plane) of the photovoltaic module 20 is zero.

When the inclination angle-adjustable photovoltaic support 10 is adjusted in angle, the horizontally arranged photovoltaic module 20 shown in fig. 2 only needs to rotate clockwise and south to reach the inclined state shown in fig. 3. In the above-mentioned adjustable photovoltaic support 10 of inclination, the main beam 1 is located below the hinge position H0, and the photovoltaic module 20 supported by the purlin 3 can be located above the hinge position H0, so that the weight of the main beam 1 can balance at least part of the weight of the photovoltaic module 20, for example, the arrangement of the photovoltaic module 20 can be adjusted, and the coincidence of the gravity center of the rotating part of the support and the hinge position H0 can be easily realized, so that the adjustment operation of the installation inclination of the photovoltaic module 20 can be very light and flexible. Wherein, the rotating part of the bracket is also the part consisting of the main beam 1 and the rotating part rotating along with the main beam.

In the above-mentioned adjustable photovoltaic support 10 of inclination, in the horizontal state, the south side beam surface 11 of the main beam 1 abuts against the north side surface 51, so that the whole adjustable photovoltaic support 10 of inclination can support the photovoltaic module 20 more stably, and the installation inclination of the photovoltaic module 20 can be easily adjusted by using this as a starting point, and the arrangement of the photovoltaic module 20 can be adjusted so that the center of gravity of the rotating part of the support coincides with the hinge position H0 while being maintained in the horizontal state. "the center of gravity coincides with the hinge position H0", that is, the center of gravity is located on the axis of rotation represented by the hinge position H0, however, it should be understood that "coincide" and "coincide" herein mean substantially coincide and coincide, that is, a range of tolerance, for example, a distance deviation within 1cm, can be allowed.

The present invention also provides a photovoltaic balanced support system 100. Therein, the photovoltaic module 20 may be arranged such that the center of gravity of the rotating part of the rack, which is composed of the main beam 1 and the rotating part following the main beam rotation 1, coincides with the hinge position H0. In the illustrated embodiment, the rotating portion following the rotation 1 of the main beam may include the photovoltaic module 20, the purlin 3, the support 6 and the bracket 7, which will be described in detail later, and the like. The inclination-angle-adjustable photovoltaic support 10 can be adopted, so that the photovoltaic module 20 is supported on the at least two purlines 3 of the inclination-angle-adjustable photovoltaic support 10; the arrangement of the photovoltaic module 20 is adjusted so that the center of gravity of the aforementioned rotating portion of the bracket coincides with the hinge position H0. In practice, the center of gravity and the hinge position H0 may be made to coincide as much as possible, and as previously mentioned, a range of tolerances may be allowed.

In the illustrated embodiment, the center of gravity of the main beam 1 may be offset to the north relative to the hinge position H0. That is, the center of gravity of the main beam 1 may be located at a position lower to the north side of the hinge position H0. In the illustrated embodiment, the cross-sectional center O1 (geometric center of cross-section) of the main beam 1 may coincide with the center of gravity of the main beam 1, and thus, the cross-sectional center O1 of the main beam 1 may be offset to the north side with respect to the hinge position H0.

As previously mentioned, the support 5 has a north side 51 on the north side and the support 5 also has a south side 52 on the south side. The north-facing side 51 of the support 5 abuts the south-side beam face 11 of the main beam 1. In a comparative example, the rotating part of the bracket composed of the main beam 1, the purline 3, the photovoltaic module 20 and the like is designed to be in a north-south symmetrical structure. When the surface of the photovoltaic module 20 of the rotating part of the bracket is placed horizontally upwards, the center of gravity of the cross section (or vertical section) is positioned on the north-south symmetry axis above the main beam 1, namely the symmetry axis between the main beam 1 and the photovoltaic module 20. If the rotation axis (hinge position H0) supported by the upright 4 is required to be coincident with the center of gravity of the rotating part of the support, the upright 4 is directly below the main beam 1, the rotation axis is directly above the main beam 1, the middle of the rotation axis is just separated by one main beam 1, the upright 4 cannot be directly supported, and the support 5 bent to the north side is adopted to provide the hinge position H0 to rotatably support the main beam 1, the south side surface 52 of the support 5 is easy to touch the lower surface of the photovoltaic module 20, namely, the interference with the photovoltaic module 20 supported on the main beam 1 is easy to occur, so that the photovoltaic modules 20 cannot be continuously arranged. Therefore, the center of gravity of the main beam 1 (in the figure, the cross-sectional center O1) deviates to the north side relative to the hinge joint H0, and the support 5 for rotatably supporting the main beam 1 (particularly in an inclined state) can be prevented from interfering with the arrangement of the photovoltaic modules 20 on the main beam 1, so that the arrangement of the photovoltaic modules 20 on the main beam 1 is more compact and reasonable.

At this time, the photovoltaic module 20 may be disposed to be offset to the south with respect to the hinge position H0, thereby making the center of gravity of the rotating portion of the stand coincide with the hinge position H0, as shown in fig. 2.

In the embodiment shown in fig. 2, the cross-sectional center O1 of the main beam 1 may be offset to the north-south side of the main beam 1 by half the north-south dimension L1 (which may also be referred to as the main beam width) compared to the hinge point H0. In other words, the cross-sectional center O1 is offset to the north by a predetermined distance δ 1 compared to the hinge point H0, δ 1 being 1/2 × L1. The distance δ 1 is also the distance between the cross-sectional center O1 and the hinge point H0 in the north-south direction. Fig. 12A illustrates a cross-sectional configuration of the exemplary main beam 1 illustrated in fig. 1 to 3, that is, in fig. 1 to 3, the cross section of the main beam 1 may be square, for example, the main beam 1 may be a square pipe. In fig. 12A, a north-south dimension L1 of the main beam 1, that is, an outer maximum dimension of the main beam 1 in the north-south direction, that is, a width of a square tube as the main beam 1 is also shown.

As shown in fig. 2, the portion of the north-facing side surface 51 of the support 5 for abutting against the south-side beam surface 11 of the main beam 1 is located directly below the hinge position H0, in other words, the hinge position H0 coincides with the portion of the north-facing side surface 51 of the support 5 for abutting against the south-side beam surface 11 of the main beam 1 with a vertical plane (in fig. 2, a vertical center line X0, which may be referred to as a rotation center) passing through the hinge position H0. That is, in the horizontal state shown in fig. 2, the vertical center line X0 of the rotation axis represented by the hinge position H0 coincides with the south edge (south side beam surface 11) of the main beam 1, and the support 5 of the stay 2 can directly provide the hinge position H0 (or support the rotating shaft 55 which will be described later) against the main beam 1. In this case, the center of gravity of the main beam 1 has an eccentricity of half the width of the main beam with respect to the rotation axis center, and therefore the center of gravity of the rotating portion of the bracket also moves in the north direction. As mentioned above, at this time, the photovoltaic module 20 supported on the main beam 1 (by the purline 3) can be moved horizontally southward independently, and the purline 3 can also be adjusted correspondingly, so that the gravity center of the rotating part of the bracket is moved horizontally southward and can be overlapped with the hinge position H0, thereby realizing balanced support.

Referring to fig. 4A and 4B, in conjunction with fig. 1 and 2, the support 5 may include a first plate portion 56 and a second plate portion 57. The first plate portion 56 may be fixed to the north side surface 41 of the upper end portion of the pillar 4, for example, by caulking or welding. The second plate portion 57 may be connected to the upper end of the first plate portion 56, and the second plate portion 57 may have a recess 58 recessed toward the south side, and the bottom surface 581 of the recess 58 constitutes a portion where the north-facing side surface 51 of the support 5 abuts the south-side beam surface 11. The upper end 59 of the second plate portion 57 on the upper side of the recess 58 provides a hinge position H0. The first plate portion 56 and the second plate portion 57 may be an integral plate material, which together constitute a plate member as the support 5. It is to be understood that the division of the two in fig. 2 by dashed lines is merely for illustration purposes and does not indicate an actual boundary thereof. It is to be understood that the terms "first", "second", etc. are used herein to define features only for the purpose of distinguishing between corresponding features, and are not intended to limit the scope of the present invention in any way unless otherwise specified.

In the embodiment shown in fig. 4A and 4B, the upper end 59 of the second plate portion 57 may have a circular hole 591, a knuckle bearing 592 may be mounted in the circular hole 591, and the hinge location H0 may be provided by a bearing hole of the knuckle bearing 592. With the support 5 provided with the spherical plain bearing 592, the main beam 1 can be arranged either horizontally or at an angle to the horizontal, which angle is typically not greater than 20 °. In the embodiment shown in fig. 5A and 5B, the upper end 59 of the second plate portion 57 may have a circular hole 591, a cylindrical bearing 593 may be mounted in the circular hole 591, and the hinge point H0 may be provided by a cylindrical bore of the cylindrical bearing 593. With the support 5 fitted with the barrel bearing 593, the main beam 1 needs to be horizontally arranged.

In one embodiment, first plate portion 56 of support 5 may be adjustably secured to north side surface 41 of upright 4 up and down by fasteners 85 passing through waist holes (not shown). The upper and lower waist holes may be, for example, connection holes at the top of the pillar 4, and the connection holes 561 of the first plate portion 56 of the support 5 may be circular holes adapted for the fasteners 85 to pass through. In this way, it is possible to facilitate the adjustment of the height of the support 5, and thus the height of the hinge position H0.

It is understood that specific terms are used herein to describe embodiments of the utility model, such as "one embodiment," "another embodiment," and/or "some embodiments" mean a particular feature, structure, or characteristic described in connection with at least one embodiment of the utility model. Therefore, it is emphasized and should be appreciated that two or more references to "one embodiment" or "another embodiment" in various places throughout this specification are not necessarily to the same embodiment. Furthermore, some of the features, structures, or characteristics of one or more embodiments of the present invention may be combined as suitable.

Referring to fig. 2 and 3, the adjustable tilt photovoltaic mount 10 may further include a support member 6. Fig. 7A and 7B show an example configuration of the support 6. The support 6 may have a connection plate 61 and a vertical plate 62 protruding upward from the connection plate 61. The support 6 may be fixedly attached to the upper deck 12 of the main beam 1 by a connecting plate 61, for example by welding. The web 61 of the support 6 may have a notch 61b on the south side to clear the upper end 59 of the second plate portion 57 of the support 5 during rotation of the main beam 1.

The support member 6 may be hinged to the hinge position H0 of the support member 5 by the vertical plate 62, whereby the main beam 1 is rotatably supported to the stay 2. For example, in the illustrated embodiment, the supporting member 6 may have two vertical plates 62 disposed opposite to each other, the rotating shaft 55 shown in fig. 6A and 6B penetrates through the through hole 62a of the two vertical plates 62 and the through hole of the second plate portion 57 providing the hinge position H0, and the supporting member 6 and the main beam 1 attached thereto may be hinged to the hinge position H0 of the supporting member 5, thereby rotatably supporting the rotating portion of the stand on the pillar 2. The second plate portion 57 of the support 5 may be interposed between the two vertical plates 62, and the aforementioned notch 61b may be provided between the two vertical plates 62. The shaft 55 may be a cylindrical shaft as shown in fig. 6A and 6B or may be a bolt, particularly when a support 5 with an oscillating bearing 592 is used.

Returning to fig. 2 and 3, the adjustable tilt photovoltaic mount 10 may also include a mount 7. The receiver 7 may have a receiver 71 and a pair of connecting portions 72 connecting the receiver 71 to the connecting plate 61. The support portion 71 supports the lower beam surface 13 of the main beam 1, and the pair of connecting portions 72 are respectively located on the south side and the north side of the main beam 1. For example, the connecting portion 72 may be a fastener such as a bolt, the supporting portion 71 may be a supporting plate as shown in fig. 8A and 8B, and the fastener (as the connecting portion 72) may penetrate through the connecting holes 71a of the supporting plate (as the supporting portion 71) at the four corners and the connecting holes 61a of the connecting plate 61 at the four corners, whereby tightening the connecting plate 61 and the supporting portion 71 may not only make the supporting portion 71 support the main beam 1, but also make the connecting plate 61 fixedly connected to the main beam 1. In fig. 8A, the pallet serving as the receiving portion 71 may have a notch 71b to avoid the upper end 59 of the second plate portion 57 of the support 5 during the rotation of the main beam 1.

In the embodiment shown in fig. 9, the mount 7 may be a hoop fitting such as a hoop bolt, the hoop sections of which on either side of the main beam 1 constitute a pair of attachment portions 72 of the mount 7, and the hoop section on the underside of the main beam 1 constitutes a receiver 71 of the mount 7. As can be seen from fig. 1, the connecting portion 72 of the bracket 7 may be disposed to avoid the supporting member 5, and in fig. 1, two bolts as one connecting portion 72 of the pair of connecting portions 72 may be respectively distributed on the east and west sides of the supporting member 5.

The inclination-angle-adjustable photovoltaic support makes full use of the characteristic that the angle adjustment range of the photovoltaic support is in unidirectional southward direction (for example, the angle adjustment range is changed between 0-70 degrees), the weight of the main beam 1 and the weight of the photovoltaic component 20 are balanced, and the negative influence of eccentric bending moment on the rotation adjustment of the photovoltaic support is fundamentally solved by adopting the balanced supporting mode, so that the inclination angle adjustment of the photovoltaic component 20 is light and flexible.

Second embodiment

Fig. 10 and 11 show an example configuration of a photovoltaic balanced support system 100 according to a second embodiment of the utility model. The photovoltaic balance support system 100 includes a photovoltaic module 20 and an adjustable inclination photovoltaic support 10. The photovoltaic balanced support system 100 may also be configured in a side view from the south as generally shown in fig. 1, and thus fig. 1 may also be used as a south side view of the photovoltaic balanced support system 100 according to the second embodiment. That is, an example configuration of the photovoltaic balanced support system 100 and the adjustable-tilt photovoltaic mount 10 may be described below with reference to fig. 1 and 10-11.

The second embodiment follows the reference numerals and parts of the contents of the aforementioned first embodiment, wherein the same reference numerals are used to designate the same or similar elements, and the description of the same technical contents is selectively omitted. For the description of the omitted parts, reference may be made to the foregoing first embodiment, and the description of this embodiment is not repeated.

The main difference between the adjustable-tilt photovoltaic support 10 in the second embodiment and the adjustable-tilt photovoltaic support 10 in the first embodiment is that δ 1 < 1/2 × L1 in the adjustable-tilt photovoltaic support 10. That is, the cross-sectional center O1 of the main beam 1 may be offset less than half the north-south dimension L1 of the main beam 1 in relation to the hinge point H0, i.e., δ 1 < 1/2 × L1. In connection with the first embodiment shown in fig. 2 described above, the cross-sectional center O1 of the main beam 1 may be offset in the north-south direction by less than half the north-south dimension L1 of the main beam 1 as compared to the hinge joint H0 as a whole. It is to be understood that the terms "within," "above," "below," and the like are inclusive of the endpoints. In other words, δ 1 ≦ 1/2 × L1.

As mentioned above, in practical engineering applications, the center of gravity of the rotating part of the support should be as close as possible to the center of rotation, which allows for a certain degree of incomplete overlap, so that the vertical center line X0 of the center of rotation does not have to be moved to the south edge of the main beam 1, as structurally allowed, and provided that the support 5 does not interfere with the continuous arrangement of the photovoltaic modules 20 on the main beam 1 within the rotation adjustment range. As long as the proper south shift satisfies the above condition, that is, the eccentricity δ 1 between the center of gravity (cross section center O1) of the main beam 1 and the rotation axis may be smaller than the half width of the square tube serving as the main beam 1, and at the same time, the photovoltaic module 20 on the upper portion of the main beam 1 also needs to be moved by a small amount. In some cases, when the vertical center line X0 of the rotation axis is offset south enough (or the eccentricity δ 1 is enough small) and the rotation driving thrust is enough, the photovoltaic modules 20 on the upper part of the main beam 1 can not move independently, as shown in fig. 10 and 11. That is, δ 1 < 1/2 × L1 allows the support 5 to achieve substantially balanced support without interfering with the arrangement of the photovoltaic modules 20, even without requiring movement of the photovoltaic modules 20.

In the illustrated embodiment, the adjustable tilt photovoltaic support 10 can be configured to allow the main beam 1 to be rotated from the horizontal position of fig. 10 to the tilted position of the purlin 2, shown in fig. 11, tilted relative to the horizontal. That is, the installation inclination angle θ of the photovoltaic module 20 may reach an angle smaller than 90 °, for example, may reach 70 °. In other words, the installation inclination angle θ of the photovoltaic module 20 may be 0 ° to 70 ° unidirectionally facing south, or the angle adjustment range of the inclination-adjustable photovoltaic bracket 10 is 0 ° to 70 ° unidirectionally facing south. It will be appreciated that such specific angular values are also intended to be "about", "approximately" or "approximately", i.e., to allow for a range of tolerances, such as a tolerance of within 5 °.

In the illustrated embodiment, the south-facing side 52 of the support 5 may have a slope 521 on the upper side that slopes downward toward the south side to clear the photovoltaic module 10 during rotation of the main beam 1 of the adjustable-angle photovoltaic support 10. Further, the south-facing side 52 of the support 5 may have a straight slope 521 inclined downward toward the south on the upper side to abut against the lower surface of the photovoltaic module 10 when the main beam 1 is rotated to an inclined state where the installation inclination angle θ shown in fig. 11 reaches 70 ° (or the purlin 2 forms 70 ° with the horizontal plane), so that the main beam 1 may be prevented from further rotating, and thus, the limit inclined state shown in fig. 11 may be helped to be determined or maintained, preventing the photovoltaic module 10 from being excessively inclined.

The cross-section of the main beam 1 in fig. 2 and 3 and fig. 10 and 11 is square, as shown in fig. 12A. While the cross section of the girder 1 may be other shapes such as a circle in fig. 12B, a polygon such as a hexagon in fig. 12C, or a D-shape in fig. 12D, which is a truncated circle larger than a semicircle obtained by cutting a circle in a straight line.

Also shown in fig. 12A-12D are respective cross-sectional centers O1 and a north-south dimension L1. Wherein, for the square in FIG. 12A, the cross-sectional center O1 is the intersection of each diagonal line, and the north-south dimension L1 is the side length of the square; for the circle in FIG. 12B, the cross-sectional center O1 is approximately the center of the circle, and the north-south dimension L1 is the diameter of the circle; for the hexagon in fig. 12C, the cross-sectional center O1 is approximately the intersection of each diagonal, and the north-south dimension L1 is its circumscribed circle diameter; for the D-shape in fig. 12D, the cross-sectional center O1 is approximately at a position below the center of its corresponding circle, and the north-south dimension L1 is the diameter of its corresponding circle.

Fig. 13 and 14 show an example configuration of the photovoltaic balanced support system 100 when the main beam 1 is circular in cross section, in which fig. 13 shows a horizontal state and fig. 14 shows an inclined state. Wherein the cross section of the main beam 1 is circular as shown in fig. 12B.

The photovoltaic support with the adjustable inclination angle and the photovoltaic balance supporting system are simple in structure, easy to manufacture, low in cost and very convenient to install on site, and materials are saved. The photovoltaic balance supporting system overcomes the technical prejudice that the photovoltaic components are symmetrically arranged relative to the north-south central line of the main beam, the coincidence of the gravity center and the rotating axis of the rotating part of the support is realized by adjusting the arrangement of the photovoltaic components, the negative influence caused by additional bending moment can be thoroughly solved, and the inclination angle of the photovoltaic components is adjusted to be extremely light and flexible.

With the development of photovoltaic power generation technology, increasing the power generation capacity of a photovoltaic power station by adjusting the installation inclination angle of a photovoltaic module becomes an important way for improving the overall economic benefit of the photovoltaic power station, so that the inclination angle adjustable photovoltaic support and the photovoltaic balance support system have very wide application prospects in the future photovoltaic power station construction.

Although the present invention has been disclosed in terms of the preferred embodiment, it is not intended to limit the utility model, and variations and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model. Therefore, any modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope defined by the claims of the present invention, unless the technical essence of the present invention departs from the content of the present invention.

Claims (9)

1. An inclination-adjustable photovoltaic bracket comprises a main beam extending along the east-west direction and a pillar rotatably supporting the main beam, at least two purlins distributed along the east-west direction are supported on the main beam, the pillar comprises a stand column providing a supporting base, and the inclination-adjustable photovoltaic bracket is characterized in that,

the post further including a support extending upwardly from the upright, the support having a north side located on a north side, the support further providing a hinge location;

the main beam is provided with an intermediate beam section positioned between two adjacent purlins, the main beam is rotatably supported on the pillar through the hinge joint of the intermediate beam section, the south side beam surface of the main beam positioned on the south side is in a horizontal state that the at least two purlins are horizontally placed through abutting against the north side surface of the bearing piece, and the main beam is positioned below the hinge joint in the horizontal state.

2. The adjustable tilt photovoltaic mount of claim 1,

the center of gravity of the main beam is offset to the north side with respect to the hinge location.

3. The adjustable tilt photovoltaic mount of claim 2,

the center of the cross section of the main beam is superposed with the center of gravity of the main beam;

the cross-sectional center of the main beam is offset to a north side by less than half of a north-south dimension of the main beam compared to the hinge location.

4. The adjustable tilt photovoltaic mount of claim 1,

the photovoltaic support with the adjustable inclination angle is arranged to allow the main beam to rotate from the horizontal state to an inclined state in which the purlins are inclined relative to the horizontal plane.

5. The adjustable tilt photovoltaic mount of claim 1,

the support member includes:

a first plate portion fixed to a north surface of an upper end portion of the pillar; and

a second plate portion connected to an upper end of the first plate portion, the second plate portion having a recess recessed toward a south side, a bottom surface of the recess constituting a portion where the north-side surface of the support abuts the south-side beam surface, an upper end of the second plate portion located on an upper side of the recess providing the hinge position.

6. The adjustable tilt photovoltaic mount of claim 5,

the first plate portion of the support is fixed to the north side surface of the pillar by a fastener passing through a waist hole to be adjustable up and down.

7. The adjustable-tilt photovoltaic mount of claim 1, further comprising:

and a support member having a connection plate and a vertical plate upwardly protruding from the connection plate, the support member being fixedly coupled to an upper beam surface of the main beam through the connection plate and being hinged to a hinge position of the support member through the vertical plate, whereby the main beam is rotatably supported to the pillar.

8. The adjustable pitch photovoltaic mount of claim 7, further comprising:

the supporting piece is provided with a supporting part and a pair of connecting parts for connecting the supporting part to the connecting plate, the supporting part supports the lower beam surface of the main beam, and the pair of connecting parts are respectively positioned on the south side and the north side of the main beam.

9. A photovoltaic balanced support system comprising a photovoltaic module, further comprising the adjustable-pitch photovoltaic mount of any of claims 1 to 8, the photovoltaic module bearing on at least two purlins of the adjustable-pitch photovoltaic mount; and is

The photovoltaic module is arranged so that the center of gravity of a rotating part of the support, which is composed of the main beam and a rotating part that rotates following the main beam, coincides with the hinge position.

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