Internal pressure type curved surface building photovoltaic connecting device

Abstract

The utility model relates to the field of photovoltaic technology. An internal pressure type curved surface building photovoltaic connecting device comprises a supporting frame, the supporting frame comprises a supporting plate used for supporting a photovoltaic assembly and two supporting vertical plates used for being in lap joint with a building component, and the two supporting vertical plates are fixed to the lower side of the supporting plate; an L-shaped pressing piece is further included, one end of the L-shaped pressing piece abuts against the building component, the other end of the L-shaped pressing piece is erected on an auxiliary frame of the photovoltaic module, and the auxiliary frame of the photovoltaic module is vertically clamped by the L-shaped pressing piece and the supporting plate. The locking piece is used for pressing the L-shaped pressing piece, the locking piece comprises a U-shaped bolt, a U-shaped base plate and a locking nut, the U-shaped bolt is bent in a U shape, the end face of the U-shaped base plate is in a U shape with a downward opening, the L-shaped pressing piece and the U-shaped base plate are provided with penetrating holes penetrating through the U-shaped bolt, the U-shaped bolt penetrates through the U-shaped base plate and is in threaded connection with the locking nut, and the U-shaped base plate abuts against the lower side of the building component. The utility model is suitable for photovoltaic connection of curved surface construction.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, specifically a photovoltaic connection device. Background Technology

[0002] New energy power generation is a key development project, and vigorously developing photovoltaics will remain a key focus for the next few years.

[0003] The common form of photovoltaic panel installation on the market is the top pressure block node (such as the photovoltaic module installation structure of a photovoltaic bracket disclosed in CN105227073A). For curved buildings (such as domes, arched roofs, irregular curtain walls, etc.), the top pressure block node structure cannot meet the requirements of stable installation of photovoltaic modules on complex curved surfaces and angle adjustment.

[0004] Currently, there is a lack of photovoltaic connection structures suitable for curved surface photovoltaic arrays. Utility Model Content

[0005] In view of the problems existing in the prior art, this utility model provides an internal pressure curved surface building photovoltaic connection device to solve at least one of the above technical problems.

[0006] To achieve the above objectives, this utility model provides an internal pressure type curved building photovoltaic connection device, characterized in that it includes a support frame, the support frame including a support plate for supporting photovoltaic modules and two support plates for overlapping on building components, and the two support plates are fixed on the lower side of the support plate.

[0007] It also includes an L-shaped clamp, one end of which abuts against a building component, and the other end of which rests on the sub-frame of the photovoltaic module. The L-shaped clamp and the support plate clamp the sub-frame of the photovoltaic module from above and below.

[0008] It also includes a locking member for pressing the L-shaped pressure member. The locking member includes a U-shaped bolt bent in a U-shape, a U-shaped washer with its end face open downwards, and a locking nut. The L-shaped pressure member and the U-shaped washer have through holes through which the U-shaped bolt passes. The U-shaped bolt passes through the U-shaped washer and is threadedly connected to the locking nut. The U-shaped washer is semi-enclosed around the locking nut and abuts against the underside of the building component.

[0009] This invention is applicable to photovoltaic connections on curved surfaces. The height of the two supporting plates controls the distance between the photovoltaic module and the building structure surface. An L-shaped clamp presses the aluminum sub-frame of the module onto the support frame. The U-shaped pad protects the locking nut, preventing it from loosening due to external impacts.

[0010] More preferably, the L-shaped pressing member includes a first bent portion and a second bent portion connected in sequence, the second bent portion being vertically arranged, and the end of the first bent portion away from the second bent portion being connected to a horizontally arranged overlapping portion, the overlapping portion being attached to the sub-frame of the photovoltaic module;

[0011] The angle between the first bend and the second bend is 80-85°.

[0012] More preferably, the perforation is provided on the first bent portion.

[0013] More preferably, the perforation is an oblong perforation.

[0014] More preferably, the L-shaped pressing member and the U-shaped pad have two through holes;

[0015] Two perforations are placed one in front of the other, and the length of the perforations in the front-to-back direction is greater than the length of the perforations in the left-to-right direction.

[0016] More preferably, a polytetrafluoroethylene gasket is sandwiched between the L-shaped pressure member and the sub-frame of the photovoltaic module.

[0017] One of its functions is to reduce friction between the subframe of the photovoltaic module and the L-shaped clamping component. A second function is to prevent electrochemical corrosion between the aluminum and steel contacts caused by the L-shaped clamping component and the subframe of the photovoltaic module.

[0018] More preferably, the L-shaped pressing member is a steel profile, and the support frame is a steel profile.

[0019] More preferably, the length of the support frame in the front-to-back direction is less than the length of the L-shaped pressure member in the front-to-back direction.

[0020] More preferably, the length of the support plate in the front-back direction is equal to the length of the support upright in the front-back direction.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This invention is applicable to photovoltaic connections on curved surfaces. The height of the two supporting plates controls the distance between the photovoltaic module and the building structure surface. An L-shaped clamp presses the aluminum sub-frame of the module onto the support frame. The U-shaped pad protects the locking nut, preventing it from loosening due to external impacts. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a specific embodiment 1 of the present utility model;

[0024] Figure 2 This is a front view of the support frame of a specific embodiment 1 of this utility model;

[0025] Figure 3 This is a top view of the support frame of a specific embodiment 1 of the present utility model;

[0026] Figure 4 This is a top view of the L-shaped pressure member of a specific embodiment 1 of this utility model;

[0027] Figure 5 This is a cross-sectional view of the L-shaped pressing component in specific embodiment 1 of this utility model;

[0028] Figure 6 This is a schematic diagram of a U-shaped bolt according to a specific embodiment 1 of the present utility model;

[0029] Figure 7 This is a top view of the U-shaped pad according to a specific embodiment 1 of the present utility model;

[0030] Figure 8 This is a front view of the U-shaped pad of a specific embodiment 1 of this utility model.

[0031] In the diagram: 1 is the support frame, 2 is the L-shaped pressure piece, 3 is the U-bolt, 4 is the PTFE gasket, 5 is the photovoltaic module, 6 is the building component, 7 is the U-shaped pad, 21 is the second bend, 22 is the first bend, and 23 is the overlap. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings.

[0033] See Figures 1 to 8 Specific Embodiment 1: An internal pressure type curved building photovoltaic connection device includes a support frame 1, which includes a support plate for supporting photovoltaic modules 5 and two support plates for overlapping on building components 6. The support plate has two support plates fixed on its lower side. It also includes an L-shaped pressure member 2, one end of which abuts against the building component 6, and the other end of which overlaps on the sub-frame of the photovoltaic module 5. The L-shaped pressure member 2 and the support plate clamp the sub-frame of the photovoltaic module 5 from top to bottom. It also includes a locking member for pressing the L-shaped pressure member 2. The locking member includes a U-shaped bolt bent in a U-shape, a U-shaped pad 7 with the end face open downwards, and a locking nut. The L-shaped pressure member 2 and the U-shaped pad 7 have through holes for the U-shaped bolt to pass through. The U-shaped bolt 3 passes through the U-shaped pad 7 and is threadedly connected to the locking nut. The U-shaped pad 7 is semi-enclosed around the locking nut and abuts against the lower side of the building component. This utility model is applicable to photovoltaic connections on curved surfaces. The height of the photovoltaic module 5 from the surface of the building component is controlled by the height of the two supporting plates. The L-shaped clamp 2 presses the aluminum sub-frame of the module onto the support frame 1. The U-shaped pad 7 is U-shaped to protect the locking nut and prevent it from loosening due to external impacts.

[0034] The building component has through holes for the two bolt shanks of the U-bolt to pass through. Alternatively, if the building component is a beam, the two bolt shanks of the U-bolt can be located on opposite sides of the beam.

[0035] The two supporting panels can be the same or different in height. Whether the supporting panels at different node positions have the same height depends on whether the longitudinal spacing between the surface of the building component and the photovoltaic module is the same. When the surface of the building component and the longitudinal spacing of the photovoltaic module are the same, the supporting panels have the same height. When the surface of the building component and the longitudinal spacing of the photovoltaic module are different, the supporting panels have different heights.

[0036] The L-shaped clamp 2 includes a first bent portion 22 and a second bent portion 21 connected in sequence. The second bent portion 21 is vertically arranged. The end of the first bent portion 22 away from the second bent portion 21 is connected to a horizontally arranged overlapping portion 23, which overlaps on the sub-frame of the photovoltaic module 5. The included angle α between the first bent portion 22 and the second bent portion 21 is 80-85°. A through hole is provided on the first bent portion 22. The through hole is an oblong hole. The included angle b between the first bent portion and the overlapping portion is 175°. The end of the overlapping portion abuts against the longitudinal sidewall of the sub-frame of the photovoltaic module.

[0037] The L-shaped pressure piece 2 and the U-shaped pad 7 have two through holes; the two through holes are arranged one in front of the other, and the length of the through holes in the front-to-back direction is greater than the length of the through holes in the left-to-right direction.

[0038] A polytetrafluoroethylene (PTFE) gasket 4 is sandwiched between the L-shaped clamping member and the sub-frame of the photovoltaic module 5. One function of this gasket is to reduce friction between the sub-frame of the photovoltaic module 5 and the L-shaped clamping member 2. Another function is to prevent electrochemical corrosion between the aluminum and steel surfaces caused by the L-shaped clamping member and the sub-frame of the photovoltaic module.

[0039] L-shaped pressure piece 2 is made of steel profile, and the support frame is made of steel profile.

[0040] The length of support frame 1 in the front-to-back direction is less than the length of L-shaped pressure member 2 in the front-to-back direction. The length of support plate in the front-to-back direction is equal to the length of support upright plate in the front-to-back direction.

[0041] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An internally pressurized curved building photovoltaic connection device, characterized in that, It includes a support frame, which includes a support plate for supporting photovoltaic modules and two support plates for attaching to building components, with the two support plates fixed to the lower side of the support plate; It also includes an L-shaped clamp, one end of which abuts against a building component, and the other end of which rests on the sub-frame of the photovoltaic module. The L-shaped clamp and the support plate clamp the sub-frame of the photovoltaic module from above and below. It also includes a locking member for pressing the L-shaped pressure member. The locking member includes a U-shaped bolt bent in a U-shape, a U-shaped washer with its end face open downwards, and a locking nut. The L-shaped pressure member and the U-shaped washer have through holes through which the U-shaped bolt passes. The U-shaped bolt passes through the U-shaped washer and is threadedly connected to the locking nut. The U-shaped washer is semi-enclosed around the locking nut and abuts against the underside of the building component.

2. The internal pressure type curved building photovoltaic connection device according to claim 1, characterized in that: The L-shaped pressing component includes a first bent portion and a second bent portion connected in sequence. The second bent portion is vertically arranged. The end of the first bent portion away from the second bent portion is connected to a horizontally arranged overlapping portion. The overlapping portion overlaps on the sub-frame of the photovoltaic module. The angle between the first bend and the second bend is 80-85°.

3. The internal pressure type curved building photovoltaic connection device according to claim 2, characterized in that: The perforation is provided on the first bent portion.

4. The internal pressure type curved building photovoltaic connection device according to claim 1, characterized in that: The perforation is a waist-shaped hole.

5. The internal pressure type curved building photovoltaic connection device according to claim 1, characterized in that: The L-shaped pressing member and the U-shaped pad have two through holes; Two perforations are placed one in front of the other, and the length of the perforations in the front-to-back direction is greater than the length of the perforations in the left-to-right direction.

6. The internal pressure type curved building photovoltaic connection device according to claim 1, characterized in that: A polytetrafluoroethylene gasket is sandwiched between the L-shaped pressure member and the sub-frame of the photovoltaic module.

7. The internal pressure type curved building photovoltaic connection device according to claim 1, characterized in that: The L-shaped pressure member is made of steel profile, and the support frame is made of steel profile.

8. The internal pressure type curved building photovoltaic connection device according to claim 1, characterized in that: The length of the support frame in the front-to-back direction is less than the length of the L-shaped pressure member in the front-to-back direction.

9. The internal pressure type curved building photovoltaic connection device according to claim 1, characterized in that: The length of the support plate in the front-to-back direction is equal to the length of the support upright in the front-to-back direction.

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