Photovoltaic fastener and intelligent bipv system

Abstract

This invention discloses a photovoltaic fastener, comprising a housing, with connectors passing through a set of opposite sidewalls of the housing. Each connector has a base at its end away from the sidewall, and elastic members at both ends abutting against the sidewall and the base, respectively. A fastening rotary cylinder is disposed inside the housing, which drives the connectors to move axially along the connectors during rotation. This invention also discloses an intelligent BIPV system incorporating the above-mentioned photovoltaic fastener. This invention offers advantages such as modular production, rapid assembly and disassembly, simple structure, and ease of maintenance and replacement.

Description

Technical Field

[0001] This invention relates to the field of BIPV technology, specifically to a photovoltaic fastener and an intelligent BIPV system. Background Technology

[0002] Building Integrated Photovoltaics (BIPV) integrates photovoltaic modules as part of the building materials, giving them both power generation capabilities and the function of building components or materials. This allows for simultaneous design, construction, and acceptance with the building. Compared to traditional building-integrated photovoltaic (BAPV) systems, BIPV offers unparalleled advantages in terms of building form, spatial scale, and other aspects, and is poised to become the primary form of building photovoltaic applications.

[0003] As part of building components, BIPV modules are more complex to install, maintain, clean, and replace than BAPV systems due to their installation location. They typically have disadvantages such as complicated installation procedures, inconvenient disassembly, weak wind resistance, weak waterproof performance, and poor safety during installation. On the other hand, during the installation and wiring of photovoltaic modules, they are subject to external environmental conditions (rain and snow), product insulation performance, and construction standards, which can easily lead to electric shock accidents and pose certain risks.

[0004] The patent specification with publication number CN111706583A discloses a photovoltaic module fastener, including a support, two V-shaped clamps, a support block, and bolts. The support includes a flat plate and vertical plates respectively disposed on both sides of the bottom of the flat plate. The two ends of the flat plate extend outward, and the bottom surface of the outwardly extending ends of the flat plate is used to contact the upper surface of the photovoltaic module. The two V-shaped clamps are respectively placed horizontally inside the two vertical plates and are hinged to the vertical plates. The openings of the V-shaped clamps are arranged opposite each other. The two sides of the support block are respectively in contact with the upper inclined plates of the two horizontally placed V-shaped clamps. The bolts are threadedly connected to the flat plate and the support block in sequence. The bolts are used to control the upward movement of the support block, thereby driving the V-shaped clamps to rotate, so as to clamp on the side of the corrugated plate.

[0005] Patent specification CN215990638U discloses a BIPV photovoltaic device, including a BIPV module, a keel, and a connector; wherein the BIPV module and the keel are connected by the connector; the keel has a first connecting portion, and the connector has a second connecting portion that mates with the first connecting portion; the first connecting portion is configured as a first threaded hole, the second connecting portion is configured as a second threaded hole, and the connector further includes a fixing screw for connecting the first threaded hole and the second threaded hole; the connector includes a base plate and a support portion, the second threaded hole is formed on the base plate, and the support portion protrudes from the base plate.

[0006] Both of the above solutions suffer from complex structures and inconvenient disassembly and assembly, making it difficult to maintain, replace, recycle, and reuse photovoltaic modules. Summary of the Invention

[0007] One objective of this invention is to provide a photovoltaic fastener that has advantages such as modular production, quick assembly and disassembly, simple structure, and easy maintenance and replacement.

[0008] A photovoltaic fastener includes a housing, on which a set of opposite sidewalls are respectively provided a connector passing through the sidewalls. The end of the connector away from the sidewall has a base. The connector is provided with elastic elements at both ends abutting against the sidewall and the base respectively. A fastening rotary cylinder is provided inside the housing. The fastening rotary cylinder can drive the connector to move axially along the connector during rotation.

[0009] In this solution, the photovoltaic fasteners can be quickly installed and removed by rotating the drum clockwise or counterclockwise, which facilitates maintenance and replacement.

[0010] Preferably, the fastening drum has a centrally symmetrical arc-shaped flange, and the base has an arc-shaped structure adapted to the arc-shaped flange. During the rotation of the fastening drum, the arc-shaped flange abuts against the corresponding base to drive the connecting piece to move.

[0011] Preferably, the fastening drum is provided with a rotating shaft, one end of which extends out of the housing and is threadedly engaged with the housing.

[0012] Preferably, the end of the shaft extending out of the housing is provided with a knob or the end is connected to the output shaft of the drive motor.

[0013] Preferably, the connector is provided with a first conductor, and the fastening drum is provided with a second conductor that penetrates its wall. When the fastening drum drives the connector to move into place, the first conductor and the second conductor are connected.

[0014] Another object of the present invention is to provide an intelligent BIPV system, including the aforementioned photovoltaic fasteners, wherein the intelligent BIPV system further includes a photovoltaic panel with a photovoltaic frame, and the photovoltaic frame is provided with a limiting groove for the connector to extend into.

[0015] Preferably, a third conductor is provided inside the photovoltaic frame, and when the fastening rotary drum drive connector moves into place, the second conductor and the third conductor are connected.

[0016] Preferably, the end of the connector that mates with the limiting groove and the limiting groove are both frustum-shaped.

[0017] The beneficial effects of this invention are:

[0018] This invention not only possesses advantages such as modular production, rapid assembly and disassembly, and simple structure for easy maintenance and replacement, but also features integrated fastening-conduction and disassembly-disconnection operations. This allows installers to avoid direct contact with connectors and wiring, ensuring that wiring is only possible after fastening and disassembly is only possible after disconnection, greatly improving electrical safety during assembly, disassembly, and wiring. Furthermore, remote control of fastener assembly, disassembly, and connection / disconnection can be used to achieve remote intelligent assembly, disassembly, debugging, and testing, further avoiding the risks of poor component connection and electric shock associated with manual installation. Attached Figure Description

[0019] Figure 1 This is a top sectional view of the fasteners in an unfastened state.

[0020] Figure 2 A top sectional view of the fastener in its tightened state;

[0021] Figure 3 This is a schematic diagram of the photovoltaic panel structure of the system of the present invention in an unsecured state;

[0022] Figure 4 This is a schematic diagram of the photovoltaic panel in the fixed state of the system of the present invention. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] like Figure 1 and 2As shown, a fastener includes a housing 1. A pair of opposite sidewalls of the housing 1 are respectively provided with connectors 2 passing through the sidewalls. The end of the connector 2 away from the sidewall has a base 3. A return spring 4 is sleeved on the connector, with its two ends abutting against the sidewall and the base 3 respectively. A fastening rotating cylinder 5 is provided inside the housing 1.

[0025] The fastening drum 5 has a centrally symmetrical arc-shaped flange 51. The base 3 has an arc-shaped structure that matches the arc-shaped flange 51. During rotation, the arc-shaped flange 51 abuts against the corresponding base 3 to drive the connecting member 2 to move axially along the connecting member 2. It should be noted that the base 3 extends a certain distance along the rotational direction in which the arc-shaped flange 51 drives the connecting member 2 to limit the movement of the fastening drum 5 and prevent it from rotating excessively.

[0026] In this embodiment, a rotating shaft 6 is provided on the fastening rotating cylinder 5. One end of the rotating shaft 6 extends out of the housing 1 and the rotating shaft 6 is threadedly engaged with the housing 1 to drive the fastening rotating cylinder 5 to rotate. Specifically, a knob 7 is provided at the end of the rotating shaft 6 that extends out of the housing 1.

[0027] In this embodiment, a first conductor 8 is provided inside the connector 2, and a second conductor 6 is provided inside the fastening rotating cylinder 5 that penetrates its cylinder wall. When the fastening rotating cylinder 5 drives the connector 2 to move into place, the first conductor 8 and the second conductor 6 are connected.

[0028] like Figure 3 and 4 As shown, an intelligent BIPV system includes a profiled metal roof and photovoltaic panels 11 disposed on the profiled metal roof. The profiled metal roof includes a plurality of profiled metal panels 12 spliced ​​together. Specifically, adjacent profiled metal panels 12 are connected to each other by standing seams 13 located at the edges of adjacent profiled metal panels 12.

[0029] The photovoltaic panel 11 also comprises multiple interconnected panels, with the seams corresponding to the positions of the upright locking edges 13. Several fasteners, as described above, are spaced along the seams of the photovoltaic panels 11 to secure adjacent panels. The intelligent BIPV system also includes a base 14 nested within the upright locking edges 13 to support the fasteners. Specifically, the base 14 is a clamp structure, composed of a first support 141 and a second support 142. After the first support 141 and the second support 142 are assembled and fixed, they form a fixing cavity that nests the upright locking edges 13. In this embodiment, the second support 142 has a support platform 143 at its top, with fasteners fixed in the middle of the support platform 143. Spaces reserved on both sides of the support platform 143 are used to support the photovoltaic panels 11.

[0030] A photovoltaic frame 111 is provided on the side end of the photovoltaic panel 11. The photovoltaic frame 111 is provided with a limiting groove 1111 into which the connector 2 extends. When the connector 2 extends into the limiting groove 1111, the photovoltaic panel 11 is fastened. The end of the connector 2 that extends into the limiting groove 1111 and the limiting groove 1111 are both frustum-shaped, which can enhance the fastening of the contact surface.

[0031] In this embodiment, a third conductor 10 is provided inside the photovoltaic frame 111. When the fastening rotating drum 5 drives the connecting piece 2 to move into place, the second conductor 6 and the third conductor 10 are connected. That is, when the fastening rotating drum 5 drives the connecting piece 2 to go deeper into the limiting groove 1111 until it is in place, the first conductor 8, the second conductor 9 and the third conductor 10 are connected in sequence.

[0032] In this embodiment, a first conductor 8 is provided inside the connector 2, a second conductor 9 is provided inside the fastening rotating cylinder 5 that penetrates its cylinder wall, and a third conductor 10 is provided inside the photovoltaic frame. When the fastening rotating cylinder 5 drives the connector 2 to penetrate into the limiting groove 1111 until it is in place, the first conductor 8, the second conductor 9 and the third conductor 10 are sequentially connected.

[0033] Installation, disassembly steps, and working principle of this invention:

[0034] 1. Under normal conditions, due to the action of the return spring, the connector is inside the fastener housing. At this time, the first conductor and the second conductor inside the connector and the fastening drum are not on the same straight line, and the conductors are disconnected and in a non-conductive state.

[0035] 2. Fix the fasteners to the profiled metal roof or ground using the base. The spacing between two adjacent connectors in the X-axis direction meets the X-axis dimension requirements of the photovoltaic panel. Place the photovoltaic panel on the base and abut against the fasteners. At this time, the fasteners and photovoltaic panel are not tightly connected, and the second and third conductors are not reliably connected in a straight line, presenting a non-conductive state.

[0036] 3. Turn the knob to rotate the fastening drum clockwise (viewed from above) until... Figure 4 In this state, the tightening cylinder pushes the connector outward, causing it to extend into the limiting groove of the photovoltaic panel's frame (the size and depth of the limiting groove match the connector) until tightening is complete. At this point, the connector and the limiting groove are perfectly aligned. The frustum-shaped design enhances the tightness of the insertion into the contact surface. The base and housing confine the tightening cylinder within... Figure 4 To prevent over-rotation, the lower part of the shaft has an external thread, which matches the internal thread of the housing opening, ensuring proper rotation. Figure 4 In this state, the shaft and housing are also firmly secured, thus ensuring that it can maintain its position without external rotational force. Figure 4 State, at the same time Figure 4In this state, the third conductor inside the photovoltaic frame, the first conductor inside the connector, and the second conductor inside the fastening cylinder all form a straight line and are reliably connected, so that the two adjacent photovoltaic panels are electrically connected.

[0037] 4. During disassembly, simply loosen the knob counterclockwise (viewed from above). Due to the action of the return spring, the connector will retract from the photovoltaic frame's limiting groove into the housing until... Figure 3 State. At this time, the relative positions of the connector, fastening cylinder, and photovoltaic frame also cause the internal conductor to be in a non-linear conducting state.

[0038] It should be noted that the fastening drum can also employ an electrically driven rotating mechanism. For example, the end of the rotating shaft 6 can be connected to the output shaft of a drive motor to facilitate driving the fastening drum 5 to rotate. When a connection signal is applied, the electric mechanism causes the fastening drum to rotate clockwise (viewed from above). Figure 4 In this state, the photovoltaic modules on both sides are securely connected, creating a conductive connection between them. Similarly, when it is necessary to remove the modules, an electrical signal is simultaneously given to disconnect the photovoltaic lines. The electric mechanism causes the fastening drum to rotate counterclockwise (viewed from above), returning to its original position. Figure 3 state,

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A photovoltaic fastener, characterized in that, The device includes a housing, on which a set of opposite sidewalls are respectively provided a connector that passes through the sidewalls. The end of the connector away from the sidewall has a base. The connector is provided with elastic elements at both ends that abut against the sidewall and the base respectively. A fastening rotating cylinder is provided inside the housing. The fastening rotating cylinder can drive the connector to move along the connector axis during rotation. The fastening drum has a centrally symmetrical arc-shaped flange, and the base has an arc-shaped structure that matches the arc-shaped flange. During the rotation of the fastening drum, the arc-shaped flange abuts against the corresponding base to drive the connecting piece to move. The base extends a distance along the rotational direction in which the arc-shaped flange drives the connecting piece to move, so as to limit the fastening drum. The fastening drum is provided with a rotating shaft, one end of which extends out of the housing and is threadedly engaged with the housing, for driving the fastening drum to rotate. A knob is provided at the end of the rotating shaft that extends out of the housing. The connector is provided with a first conductor, and the fastening drum is provided with a second conductor that penetrates its wall. When the fastening drum drives the connector to move into place, the first conductor and the second conductor are connected.

2. The photovoltaic fastener according to claim 1, characterized in that, The fastening drum is provided with a rotating shaft, one end of which extends out of the housing and is threadedly engaged with the housing.

3. The photovoltaic fastener according to claim 1, characterized in that, The end of the rotating shaft extending out of the housing is provided with a knob, or the end is connected to the output shaft of the drive motor.

4. An intelligent BIPV system, characterized in that, Including the photovoltaic fasteners as described in any one of claims 1-3, the intelligent BIPV system further includes a photovoltaic panel with a photovoltaic frame, wherein the photovoltaic frame is provided with a limiting groove for the connector to extend into.

5. The intelligent BIPV system according to claim 4, characterized in that, A third conductor is provided inside the photovoltaic frame. When the fastening rotating drum drive connector moves into place, the second conductor and the third conductor are connected.

6. The intelligent BIPV system according to claim 4, characterized in that, The end of the connector that mates with the limiting groove, as well as the limiting groove itself, are both frustum-shaped.

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