Solar photovoltaic roof system for building

Abstract

The utility model discloses a solar photovoltaic roof system for a building, and solves the technical problem of poor stability between a photovoltaic panel and a bracket under the action of negative wind pressure in the prior art. The solar photovoltaic roof system comprises a roof, a photovoltaic panel, a support, a hinged stand column, an arc-shaped stand column and a windproof baffle, and is characterized in that the hinged stand column is located at the low point position of a main beam, and the hinged top is hinged to the low end of the main beam through a steel pin; the arc-shaped stand column is located at the middle point or / and the high point of the main beam, the arc-shaped stand column is formed by connecting an upper section of galvanized steel pipe and a lower section of galvanized steel pipe in an inserted mode, the radian circle center of the arc-shaped stand column takes the steel pin as the circle center, multi-stage plug pin holes are formed between the two sections of galvanized steel pipes, and the height of the arc-shaped stand column is adjusted in a plug pin locking mode. An arc-shaped telescopic rod is adopted for adjusting the stand column in the system, so that the top end of the stand column and the support can be connected in a mechanical welding mode, the connecting rigidity is large, and the shaking problem does not exist.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field that solar photovoltaic and building roof combined. BACKGROUND

[0002] The building solar photovoltaic roof system is a new type of technology that combines solar power generation technology with building roofs, which makes full use of the advantages of sufficient light and no obstruction on the roof to increase the power generation per unit time.

[0003] According to the structure type of the roof, it can be divided into sloping roof and flat roof, wherein, in the sloping roof, the solar photovoltaic panel assembly can be directly used to replace the traditional tiles (such as photovoltaic tiles) and installed on the original roof. In the flat roof, since the roof has no slope, the angle of the photovoltaic support needs to be designed (for example, 30 degrees to the south), so as to maximize the acceptance of sunlight.

[0004] In the flat roof photovoltaic support system, according to whether the angle of the photovoltaic panel support is adjustable, it can be divided into fixed support and adjustable support, wherein, the fixed support has the characteristics of simple structure and low implementation cost, and it is long-term maintenance-free, but the angle cannot be adjusted according to the change of seasons, so the power generation is lower than that of the adjustable support. The adjustable support has the advantage of adjustable angle, which can be adjusted according to the change of seasons. Therefore, the solar photovoltaic roof system with adjustable angle is the current research and development direction.

[0005] For example, the roof photovoltaic assembly disclosed in Chinese patent application document CN202510190347.5 adjusts the angle of the support by using the action of the traction rope; so that the photovoltaic assembly can drive the photovoltaic panel in an inclined state to rotate downward to a horizontal state, avoiding the photovoltaic panel from being blown off the roof by strong wind in strong wind weather.

[0006] Although this angle-adjustable support solves the problem of adjustable angle, it has the problem of photovoltaic panel shaking under the action of strong wind because it has many hinged connection points and uses a steel wire rope adjustment method. Under normal circumstances, this structure is not friendly to negative wind pressure, because under the action of negative wind pressure, the photovoltaic panel is easily pulled off or scattered from the panel support.

[0007] Through research, we found that under the action of positive wind pressure (so-called positive wind pressure refers to the wind blowing against the front of the photovoltaic panel), the photovoltaic panel has good stability. Under the action of negative wind pressure (so-called negative wind pressure refers to the wind blowing against the back of the photovoltaic panel), the photovoltaic panel has the tendency to separate from the support, and has poor stability and the risk of separation. Utility model content

[0008] In order to solve the prior art, the utility model provides a solar photovoltaic roof system for building, solves the poor stability between photovoltaic panel and support under the negative wind pressure in prior art.

[0009] The utility model solves technical scheme that its technical problem adopts:

[0010] The solar photovoltaic roof system for building, including roof, photovoltaic panel, support, articulated upright, arc upright and wind baffle, the support is the frame structure that is composed of main beam and secondary beam, wherein, the main beam has the pitch state of included angle between roof, multiple photovoltaic panels are laid continuously in the front of support, and the gap between two photovoltaic panels is fixed using double-sided fastener, and single-sided fastener is used to fix the edge position of photovoltaic panel, characterized by: articulated upright is located in the low point position of main beam, and the top of articulated has U-shaped notch, and the U-shaped notch and main beam low end are connected through steel hinge pin, the arc upright is located in the midpoint or / and high point position of main beam, the arc upright is composed of upper and lower two galvanized steel pipe plug-in connections, and the arc of the arc upright center is with the steel pin as the center, and multiple levels of pin holes are arranged between the two galvanized steel pipes, the height of the arc upright is adjusted through the way of pin locking, with the steel pin as the movable center, the pitch angle of photovoltaic panel is adjusted.

[0011] The back of the main beam is fixedly provided with a wind baffle.

[0012] Further, the top end of the arc upright is mechanically fixed to the main beam.

[0013] Further, the cross section of the secondary beam is U-shaped, and the open end of the secondary beam is provided with an inward turned edge.

[0014] Further, the single-sided fastener is Z-shaped, and a T-shaped bolt is used to fix the single-sided fastener in the mounting groove of the secondary beam, and the wing part of the single-sided fastener buckles the edge of the photovoltaic panel.

[0015] Further, the double-sided fastener is U-shaped, and a T-shaped bolt is used to fix the double-sided fastener in the mounting groove of the secondary beam, and the wing part of the double-sided fastener buckles the edges of the photovoltaic panels on both sides.

[0016] Further, an elastic gasket is arranged at the overlapping part between the photovoltaic panel and the secondary beam.

[0017] Further, the articulated upright and the lower end of the arc upright are fixed to the concrete pier of the roof.

[0018] Further, the photovoltaic panel is a single crystal silicon photovoltaic panel wrapped by an aluminum alloy frame.

[0019] Further, the support is an aluminum alloy profile, a hot-dipped galvanized profile or / and a stainless steel profile.

[0020] The utility model discloses the beneficial effect is:

[0021] The support in the system has the angle adjustable effect, can adjust the pitch angle according to the different of season, and the adjustment range is ±10 DEG, satisfies the solar altitude change of most areas in the country.

[0022] The main beam in the system adopts rectangular aluminum alloy pipe, and the secondary beam adopts U-shaped hot-dip galvanized pipe, and the combination of the two can realize the combination of rigidity and light weight, and improve the wind pressure resistance of the support.

[0023] The back side of the support in the system is additionally provided with corrugated color steel tile, which forms a windproof baffle on the back of the photovoltaic panel, effectively solves the problem that the photovoltaic panel and the support are easy to fall off and damage under the action of negative wind pressure, and the color steel tile has simple structure and low cost, and has practicality.

[0024] The support and the color steel tile in the system have a ventilation space, and the photovoltaic panel has good heat dissipation performance. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the installation schematic drawing of the solar photovoltaic roof system.

[0026] Figure 2 It is the continuous laying plan view of photovoltaic panel.

[0027] Figure 3 It is the plan view of support.

[0028] Figure 4 It is the secondary beam joint drawing, and shows the horizontal plane state effect.

[0029] Figure 5 It is the secondary beam joint drawing, and shows the vertical plane state effect.

[0030] Figure 6 It is the connection node of photovoltaic panel and support, and shows the single-side fixed style.

[0031] Figure 7 It is the connection node of photovoltaic panel and support, and shows the double-side fixed style.

[0032] Figure 8 It is the schematic drawing of articulated column.

[0033] Figure 9 It is the schematic drawing of arc column.

[0034] In the drawing:

[0035] 00 roof, 01 concrete support,

[0036] 10 photovoltaic panel,

[0037] 20 support, 21 main beam, 22 secondary beam, 221 inner flange, 23 T-shaped bolt, 24 elastic washer, 25 flat connector,

[0038] 30 double-sided fastener,

[0039] 40 single-sided fastener,

[0040] 50 windbreak,

[0041] 60 hinged stand, 61 U-shaped notch, 62 steel pin,

[0042] 70 arc-shaped stand, 71 bolt hole, 72 through bolt. DETAILED DESCRIPTION

[0043] The embodiment will be described in conjunction with the drawings attached to the specification Figure 1 to the drawings attached to the specification Figure 9 , the building solar photovoltaic roof system will be described in detail. Specifically, the system includes a roof 00, a photovoltaic panel 10, a support 20, a stand and a windbreak, wherein the photovoltaic panel 10 in the embodiment is a single crystal silicon photovoltaic panel wrapped with an aluminum alloy frame, which has the advantages of high rigidity and high power generation efficiency. The photovoltaic panel is fixed on the support mentioned above through a mechanical special connecting assembly.

[0044] The support 20 is made of lightweight aluminum alloy, hot-dipped galvanized or stainless steel profile, including a main beam 21 and a secondary beam 22, wherein the main beam is a rectangular aluminum alloy pipe and the secondary beam is a U-shaped hot-dipped galvanized pipe. The main beam and the secondary beam are arranged at 90° to form a continuous rectangular frame structure for laying photovoltaic panels.

[0045] Further, the secondary beam is arranged in the length direction of the roof, i.e. the east-west direction, and needs to be connected by extension. The connection is made by a flat connector 25, as shown in Figure 4 and Figure 5 , and the connection mode is bolted connection.

[0046] The photovoltaic panel 10 is continuously laid on the support, and the double-sided fastener 30 is used to fix the gap between two photovoltaic panels, and the single-sided fastener 40 is used to fix the outermost edge of the photovoltaic panel. The secondary beam 22 is U-shaped and is installed on the front surface (i.e. the windward surface) of the main beam, and the opening of the secondary beam 22 is provided with an inward flange 221, and a T-shaped mounting groove is formed at the opening, and the single-sided fastener or the double-sided fastener is installed at the mounting groove to fix the photovoltaic panel on the front surface. The back plate 50 is installed on the back surface (i.e. the leeward surface) of the main beam 21 by self-tapping screws, and the back plate 50 is preferably a color steel tile, which forms a windproof effect on the back surface of the photovoltaic panel, thereby solving the problem of direct impact of strong wind on the back surface of the photovoltaic panel.

[0047] The single-sided fastener 40 is installed as follows: the single-sided fastener 40 is Z-shaped, and a T-shaped bolt 23 is used to fix the single-sided fastener at the mounting groove of the secondary beam, so that the wing of the single-sided fastener tightly clamps the edge of the photovoltaic panel.

[0048] The double-sided fastener 30 is installed as follows: the double-sided fastener 40 is U-shaped, and a T-shaped bolt 23 is used to fix the double-sided fastener at the mounting groove of the secondary beam, so that the wing of the double-sided fastener tightly clamps the edges of the photovoltaic panels on both sides.

[0049] Further, an elastic gasket 24 is arranged between the photovoltaic panel and the secondary beam at the fastener fixing point, which protects the photovoltaic panel and avoids damage to the photovoltaic panel.

[0050] Further, the existence of the inward flange of the mounting groove can improve the installation strength of the T-shaped bolt and the mounting groove, i.e. it has the function of enhancing the locking force.

[0051] The column below the support is used to support the support, and according to different positions, the column includes a hinged column 60 and an arc-shaped column 70, which is fixed on the secondary cast concrete pier 01 on the roof through a flange structure, similar to the function of the column in the steel structure.

[0052] The hinged column 60 is located at the low point of the support, and specifically, the top of the hinge has a U-shaped notch 61, which is used to be hingedly connected to the main beam on one side of the low end of the support through a wear-resistant steel pin 62, forming a kind of movable connection.

[0053] The arc-shaped column 70 is located at the middle and high point of the support, and taking the high point as an example, the arc-shaped column is composed of upper and lower galvanized steel pipes, and the two galvanized steel pipes are locally inserted and movably connected, and a plurality of plug hole 71 are arranged between the two galvanized steel pipes, and the height of the arc-shaped column is adjusted by locking the plug 72.

[0054] Further, the top end of the arc-shaped column is provided with a U-shaped groove for cooperating with the main beam and being fastened by screws or welded to form a mechanical fixation.

[0055] Further, the arc-shaped column in the embodiment can increase the contact area of the plug-in connection, which is beneficial to the improvement of the stability.

[0056] Further, the curvature of the arc-shaped column 70 satisfies the following requirement: the curvature radius of the arc-shaped column takes the steel pin on the articulated column as the center to ensure the flexible adjustment of the arc-shaped column.

[0057] Similarly, the midpoint arc-shaped column installation mode is the same as the above mode, and a 6-level height adjustment is shown in the figure.

[0058] When the pitch angle of the photovoltaic panel needs to be adjusted, the height of the arc-shaped column is adjusted and locked with the steel pin on the articulated column as the center, so that the pitch angle of the photovoltaic panel can be adjusted.

[0059] The above-described embodiments only describe the preferred embodiments of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements of the present application made by those skilled in the art shall fall within the protection scope of the present application as defined by the claims.

Claims

1. A solar photovoltaic roof system for building, comprising a roof, photovoltaic panels, a support frame, a hinged column, an arc column and a windbreak, the support frame is a frame structure composed of a main beam and a secondary beam; wherein, The main beam has an angle with the roof, the pitch state, a plurality of photovoltaic panels in the front of the bracket continuous laying, and the gap between the two photovoltaic panels is fixed by using double-sided fastener, and the single-sided fastener is used to fix the edge position of the photovoltaic panel; characterized in that: the hinged column is located at the low point of the main beam, and the top of the hinge has a U-shaped notch, which is connected by a steel pin hinge with the low end of the main beam; the arc-shaped column is located at the midpoint or / and high point of the main beam, the arc-shaped column is composed of upper and lower two sections of galvanized steel pipe plug-in connection, and the center of the arc of the arc-shaped column is taken as the center of the steel pin, a plurality of plug holes are arranged between the two sections of galvanized steel pipe, the height of the arc-shaped column is adjusted by the plug locking mode, the steel pin is taken as the movable center, and the pitch angle of the photovoltaic panel is adjusted; The back of the main beam is fixedly provided with a wind baffle.

2. The solar photovoltaic roof system for buildings of claim 1, wherein, The top end of the arc-shaped column is mechanically fixedly connected with the main beam.

3. The solar photovoltaic roof system for buildings of claim 1, wherein, The section of the secondary beam is U-shaped, and the open position of the secondary beam is provided with an inward turned edge.

4. The solar photovoltaic roof system for buildings of claim 1, wherein, The single-sided fastener is Z-shaped, and a T-shaped bolt is used to fix the single-sided fastener at the mounting groove of the secondary beam, and the wing part of the single-sided fastener buckles the edge of the photovoltaic panel.

5. The solar photovoltaic roof system for buildings according to claim 4, wherein, The double-sided fastener is U-shaped, and a T-shaped bolt is used to fix the double-sided fastener at the mounting groove of the secondary beam, and the wing part of the double-sided fastener buckles the edge of the photovoltaic panel on both sides.

6. The solar photovoltaic roof system for buildings of claim 1, wherein, Elastic washers are arranged at the overlapping position between the photovoltaic panel and the secondary beam.

7. The solar photovoltaic roof system for buildings of claim 1, wherein, The hinged column and the lower end of the arc-shaped column are fixed on the concrete pier of the roof.

8. The solar photovoltaic roof system for buildings of claim 1, wherein, The photovoltaic panel is a single-crystal silicon photovoltaic panel wrapped by an aluminum alloy frame.

9. The solar photovoltaic roof system for buildings of claim 1, wherein, The bracket is an aluminum alloy profile, a hot-dip galvanized profile or / and stainless steel.

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