Connecting device for fixing photovoltaic module and suspension cable and solar photovoltaic system
阅读说明：本技术 用于光伏组件与悬索固定的连接装置及太阳能光伏系统 (Connecting device for fixing photovoltaic module and suspension cable and solar photovoltaic system ) 是由 王斌斌 闫丽莉 许新 于 2019-11-15 设计创作，主要内容包括：本发明公开了一种用于光伏组件与悬索固定的连接装置及太阳能光伏系统,其中连接装置包括第一连接件和第二连接件；所述第一连接件为双曲构件,该双曲构件由两段分支和设置在两段分支之间的系杆构成,每段分支由上圆弧、下圆弧和一段直线构成,通过直线实现上圆弧和下圆弧的平滑过渡连接；所述第二连接件为大雁构件,该大雁构件由三段圆弧构成,分为左圆弧、中间圆弧和右圆弧,左圆弧和右圆弧通过中间圆弧相连,左圆弧、中间圆弧和右圆弧之间平滑过渡；三段圆弧均向上凸起。该种结构形式可以用于多种公共建筑,如酒店、购物广场、医院、体育场等,这种安装形式还可以节省材料、节省工期、降低人工,可以降低投资成本。(The invention discloses a connecting device for fixing a photovoltaic module and a suspension cable and a solar photovoltaic system, wherein the connecting device comprises a first connecting piece and a second connecting piece; the first connecting piece is a hyperbolic component, the hyperbolic component is composed of two branches and a tie bar arranged between the two branches, each branch is composed of an upper arc, a lower arc and a straight line, and smooth transition connection of the upper arc and the lower arc is realized through the straight line; the second connecting piece is a wild goose member which is composed of three sections of circular arcs and is divided into a left circular arc, a middle circular arc and a right circular arc, the left circular arc and the right circular arc are connected through the middle circular arc, and the left circular arc, the middle circular arc and the right circular arc are in smooth transition; the three sections of circular arcs are all convex upwards. The structure form can be used for various public buildings, such as hotels, shopping squares, hospitals, stadiums and the like, and the installation form can also save materials, save construction period, reduce labor and reduce investment cost.)
1. A connecting device that is used for photovoltaic module and suspension cable to fix which characterized in that: comprises a first connecting piece and a second connecting piece;
the first connecting piece is a hyperbolic component, the hyperbolic component is composed of two branches and a tie bar arranged between the two branches, each branch is composed of an upper arc, a lower arc and a straight line, and smooth transition connection of the upper arc and the lower arc is realized through the straight line;
the second connecting piece is a wild goose member which is composed of three sections of circular arcs and is divided into a left circular arc, a middle circular arc and a right circular arc, the left circular arc and the right circular arc are connected through the middle circular arc, and the left circular arc, the middle circular arc and the right circular arc are in smooth transition; the three sections of circular arcs are all convex upwards;
the lower circular arcs of the two branches of the hyperbolic component are respectively connected with the left circular arc and the right circular arc of the wide goose component; an embedding cavity of the suspension cable is formed between the lower circular arcs of the two branches of the hyperbolic component and the left circular arc, the middle circular arc and the right circular arc of the goose component;
at least one pair of bolts pointing to the center of the placing cavity is arranged on the lower circular arcs of the two branches of the hyperbolic component and the left circular arc and the right circular arc of the wide goose component.
2. The connection device of claim 1, wherein: the two pairs of bolts are arranged on the double-curved member and the wide goose member and are arranged in a cross manner.
3. The connection device of claim 1, wherein: the lower circular arcs of the two branches of the hyperbolic component are respectively connected with the left circular arc and the right circular arc of the wide goose component through bolts.
4. The connection device of claim 1, wherein: two threaded holes are symmetrically formed in the left circular arc and the right circular arc, and threaded holes are formed in the lower circular arcs of the two branches of the hyperbolic component and are used for being connected with a threaded bolt.
5. The connection device of claim 1, wherein: the number of the tie bars is determined according to the length of the middle straight line and the stress condition.
6. A solar photovoltaic system comprises a solar component and a supporting component for fixing the solar component; the support component comprises a suspension cable, a first connecting device and a second connecting device, wherein the first connecting device and the second connecting device are used for fixing the solar component on the suspension cable, and the support component is characterized in that: the first connecting device and the second connecting device both comprise a first connecting piece and a second connecting piece, and the suspension cable is fixed between the first connecting piece and the second connecting piece; the lengths of the first connecting piece of the first connecting device and the first connecting piece of the second connecting device are different, so that the solar component is inclined;
the first connecting piece is a hyperbolic component, the hyperbolic component is composed of two branches and a tie bar arranged between the two branches, each branch is composed of an upper arc, a lower arc and a straight line, and smooth transition connection of the upper arc and the lower arc is realized through the straight line;
the second connecting piece is a wild goose member which is composed of three sections of circular arcs and is divided into a left circular arc, a middle circular arc and a right circular arc, the left circular arc and the right circular arc are connected through the middle circular arc, and the left circular arc, the middle circular arc and the right circular arc are in smooth transition; the three sections of circular arcs are all convex upwards;
the lower circular arcs of the two branches of the hyperbolic component are respectively connected with the left circular arc and the right circular arc of the wide goose component; an embedding cavity of the suspension cable is formed between the lower circular arcs of the two branches of the hyperbolic component and the left circular arc, the middle circular arc and the right circular arc of the goose component;
at least one pair of bolts pointing to the center of the placing cavity is arranged on the lower circular arcs of the two branches of the hyperbolic component and the left circular arc and the right circular arc of the wide goose component.
7. The solar photovoltaic system of claim 6, wherein: the linear parts of the first connecting piece and the second connecting device of the first connecting device are different in length.
8. The solar photovoltaic system of claim 6, wherein: the two pairs of bolts are arranged on the double-curved member and the wide goose member and are arranged in a cross manner.
Technical Field
The invention relates to a design of a key structure adapter in photovoltaic suspension cable building integration, in particular to a method for effectively connecting a component and a suspension cable through the adapter and meeting the requirement of a building roof drainage slope by using the adapter.
Background
The span wire supporting structure that present photovoltaic power plant adopted generally combines together with farming, forms the complementary form of farming light, and this kind of structural style is: the subassembly adopts the north-south to put perpendicularly, support in two east-west suspension cables in the below, it is fixed with the suspension cable through pasting special couple in subassembly backplate side, two suspension cables form the inclination of difference in height completion subassembly, because this kind of structure front and back row subassembly difference in height is great, so front and back row subassembly need leave great interval, this kind of mode of structure occupies great soil on the one hand, on the other hand can't accomplish the structure and realize whole sealed on the subassembly plane, in large-scale public building, because its subassembly interval is very big, the drainage problem can not effectively be solved, can't let the subassembly effectively combine with the building roofing, even adopt other structural style to design, also can let investment cost and construction cost greatly increased.
Disclosure of Invention
The invention aims to solve the technical problem of providing a connecting device which can be conveniently constructed, is reliably connected with a suspension cable and can be used as a structural member for fixing a photovoltaic module and the suspension cable, and a solar photovoltaic system which can limit the displacement of the suspension cable in a vertical plane and avoid the shaking of the suspension cable, aiming at the defects in the prior art.
In order to solve the technical problems, the invention adopts the technical scheme that:
a connecting device that is used for photovoltaic module and suspension cable to fix which characterized in that: comprises a first connecting piece and a second connecting piece;
the first connecting piece is a hyperbolic component, the hyperbolic component is composed of two branches and a tie bar arranged between the two branches, each branch is composed of an upper arc, a lower arc and a straight line, and smooth transition connection of the upper arc and the lower arc is realized through the straight line;
the second connecting piece is a wild goose member which is composed of three sections of circular arcs and is divided into a left circular arc, a middle circular arc and a right circular arc, the left circular arc and the right circular arc are connected through the middle circular arc, and the left circular arc, the middle circular arc and the right circular arc are in smooth transition; the three sections of circular arcs are all convex upwards;
the lower circular arcs of the two branches of the hyperbolic component are respectively connected with the left circular arc and the right circular arc of the wide goose component; an embedding cavity of the suspension cable is formed between the lower circular arcs of the two branches of the hyperbolic component and the left circular arc, the middle circular arc and the right circular arc of the goose component;
at least one pair of bolts pointing to the center of the placing cavity is arranged on the lower circular arcs of the two branches of the hyperbolic component and the left circular arc and the right circular arc of the wide goose component.
The two pairs of bolts are arranged on the double-curved member and the wide goose member and are arranged in a cross manner.
The lower circular arcs of the two branches of the hyperbolic component are respectively connected with the left circular arc and the right circular arc of the wide goose component through bolts.
Two threaded holes are symmetrically formed in the left circular arc and the right circular arc, and threaded holes are formed in the lower circular arcs of the two branches of the hyperbolic component and are used for being connected with a threaded bolt.
The number of the tie bars is determined according to the length of the middle straight line and the stress condition.
A solar photovoltaic system comprises a solar component and a supporting component for fixing the solar component; the support component comprises a suspension cable, a first connecting device and a second connecting device, wherein the first connecting device and the second connecting device are used for fixing the solar component on the suspension cable, and the support component is characterized in that: the first connecting device and the second connecting device both comprise a first connecting piece and a second connecting piece, and the suspension cable is fixed between the first connecting piece and the second connecting piece; the lengths of the first connecting piece of the first connecting device and the first connecting piece of the second connecting device are different, so that the solar component is inclined;
the first connecting piece is a hyperbolic component, the hyperbolic component is composed of two branches and a tie bar arranged between the two branches, each branch is composed of an upper arc, a lower arc and a straight line, and smooth transition connection of the upper arc and the lower arc is realized through the straight line;
the second connecting piece is a wild goose member which is composed of three sections of circular arcs and is divided into a left circular arc, a middle circular arc and a right circular arc, the left circular arc and the right circular arc are connected through the middle circular arc, and the left circular arc, the middle circular arc and the right circular arc are in smooth transition; the three sections of circular arcs are all convex upwards;
the lower circular arcs of the two branches of the hyperbolic component are respectively connected with the left circular arc and the right circular arc of the wide goose component; an embedding cavity of the suspension cable is formed between the lower circular arcs of the two branches of the hyperbolic component and the left circular arc, the middle circular arc and the right circular arc of the goose component;
at least one pair of bolts pointing to the center of the placing cavity is arranged on the lower circular arcs of the two branches of the hyperbolic component and the left circular arc and the right circular arc of the wide goose component.
The linear parts of the first connecting piece and the second connecting device of the first connecting device are different in length.
The two pairs of bolts are arranged on the double-curved member and the wide goose member and are arranged in a cross manner.
Compared with the prior photovoltaic suspension cable technology, the photovoltaic suspension cable has the advantages that:
1. the photovoltaic-suspension cable-building integrated structure can be realized; through changing the middle vertical arm length of the hyperbolic component, the front and rear hyperbolic components form a height difference on a vertical surface, so that the roof drainage requirement can be met on one hand, the requirement of a component inclination angle can be met on the other hand, and the generated energy is increased.
2. The connecting device is formed by connecting the double-curved member and the wide goose through the fastening piece, and the double-curved member and the wide goose member are separated, so that the installation on a construction site is facilitated. The double-curved member and the wide goose member are provided with circular arcs and have excellent deformation functions, the four pins are symmetrically arranged in a matching mode, the suspension cable displacement can be limited in a vertical plane, the suspension cable is effectively prevented from shaking, the suspension cable can be tightly fixed between the double-curved member and the wide goose member, and the connection stability with the suspension cable is high.
3. The hyperbolic component can play a role of a structural part, and under the condition of the same material, the section of the hyperbolic structure is better in mechanical property and has higher rigidity, including bending rigidity, torsional rigidity and the like of the section.
4. Both sides of the wild goose member are upwards raised, the structure of each side can be approximately regarded as an arch bridge, when external force is transmitted to the arch bridge, the whole section is approximately pressed, and the utilization efficiency of section materials reaches the highest.
5. The hyperbolic component and the wild goose component are connected through the high-strength bolt, so that the whole structure is of a symmetrical structure, the center of gravity and the shear center of the structure are on the same straight line, the cross section torsion cannot be generated under the action of external load, and the safety of the structure is greatly improved.
6. The suspension cable limiting member is composed of four characteristic bolts, the bolts are symmetrically arranged on the whole plane, one end of each bolt is tightly propped against the bearing of the suspension cable, the displacement of the suspension cable can be effectively limited, the whole structure is more stable, and the suspension cable limiting member cannot shake. One end of the bolt is screwed with the hyperbolic component or the wild goose component through the bolt, the bolt is a prestressed bolt, prestress is applied during installation, and in addition, the top end of the bolt is provided with an arc end plate matched with the profile line of the suspension cable, so that the contact area between the two is increased.
7. The structure form of the invention can be used for various public buildings, such as hotels, shopping squares, hospitals, stadiums and the like, and the installation form can also save materials, save construction period, reduce labor and reduce investment cost.
Drawings
Fig. 1 is a schematic structural view of a photovoltaic system of the present invention.
FIG. 2 is a schematic plan view of FIG. 1;
FIG. 3 is a schematic view of the connection device with the photovoltaic module and the suspension cable;
fig. 4 is a schematic structural diagram of the connecting device.
In the figure, 1, a double-curved member; 2. a wild goose member; 3. a bolt; 4. a high strength bolt; 5. silicone adhesive; 6. a photovoltaic module; 7. a first connecting means; 8. a second connecting means; 9. and (4) suspending the cable.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
as shown in fig. 1, which is a background of an overall installation structure of a photovoltaic module according to the present invention, a single module is drawn only in this figure, a roof with any area can be realized by splicing the single module, the single module supports four adapters below the single module, that is, 2 first connecting
The first connecting means 7 and the 2 second connecting means 8 are each composed of two parts, named as double curved
the
The
The suspension cable limiting component is composed of four
The whole structural connecting member is composed of two high-strength friction type bolts, and the hyperbolic member and the wide goose member can be combined together without gaps by applying prestress.
The whole structure is connected with the component through silicone adhesive, and the type selection and the length of the silicone adhesive at the joint are determined through mechanical calculation.
Characteristic of force
The double-curved component has the following characteristics:
1. the two main shafts of the cross section are symmetrical shafts, the centroid of the cross section is coincident with the shear center, and the cross section cannot generate unfavorable torsional shear stress due to torsion under the action of bearing external load.
2. The materials of the whole member in the two directions are equivalent, and the materials are arranged far away from the centroid, so that on one hand, the rigidity of the member in the two directions can be consistent, accidental loads in any directions can be resisted, and on the other hand, the section moment of inertia of the member can reach a larger level.
3. The transverse tie bar is arranged between the two hyperbolic branches, so that the calculated length of the two branches is reduced, and the external force resistance of the two branches is improved.
4. The top of the hyperbolic component is provided with the end plate which is connected with the component, and the external force can be uniformly transmitted to the hyperbolic component through the end plate due to the fact that the contact is surface contact.
5. The arcs at the two ends of each branch and the middle vertical arm adopt smooth transition to prevent the component from generating stress concentration.
The stress of the wild goose member has the following characteristics:
1. the wide goose component is symmetrical structure on vertical line, can guarantee under vertical load (main direction load), the centroid and the shear center coincidence of cross-section, under bearing the external load effect, the cross-section can not produce unfavorable torsion shear stress because of taking place to twist reverse.
2. The whole structure is three sections of circular arcs, the stress of the structure is similar to that of an arch, the three circular arcs are mutually supported, and under the force transmission of the hyperbolic component, the hyperbolic component mainly bears the axial force, so that each point of the section of the component can simultaneously achieve the compressive strength, and the section material is fully utilized.
3. Smooth transition is adopted among all the arcs, and stress concentration of the component is prevented.
The whole structure is stressed by the following characteristics:
1. the force transmission path of the whole structure is as follows: the assembly-hyperbolic component end plate-hyperbolic component-high strength bolt-wild goose component.
2. The whole structure is of a symmetrical structure on a vertical line, so that under a vertical load (a load in a main direction), the centroid of the whole structure is coincided with the shear center, and under the action of bearing an external load, the cross section cannot generate unfavorable torsional shear stress due to torsion.
3. Whole structure sets up four bolts, passes the hole of setting on hyperbolic component and wide goose component and tightly hangs the cable in tip top, can reach the effect of restriction span wire displacement, and then makes whole subassembly steady, does not produce and rocks.
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