A building integrated thermal storage photovoltaic panel

Abstract

A building-mounted thermal storage photovoltaic (PV) panel includes a corrugated PV panel body. A corrugated waterproof sealing support strip, fitted to the top surface of the PV panel body, is provided on one side of the top surface. The support strip has several slots. On the bottom side of the PV panel body opposite to the support strip, an insertion strip is provided that corresponds to the slots of the adjacent PV panel below and can be inserted into it. The fitted design of the support strip and the PV panel body provides a basic insertion structure. The slots on the support strip and the bottom insertion strip cooperate to achieve a longitudinal interlocking connection between adjacent PV panels, enhancing the stability of the overall structure and preventing displacement or overturning under strong wind loads. Simultaneously, the support strip provides an initial waterproof sealing layer, reducing the risk of debris or rainwater ingress. Furthermore, the insertion method provides a standardized positioning structure for PV panel installation, avoiding repeated adjustments to tile positions, misalignment, and uneven arrangement during installation, thus improving installation efficiency and overall wind and waterproof performance.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic building technology, specifically to a heat storage photovoltaic panel for buildings. Background Technology

[0002] In the field of building photovoltaic (PV) technology, photovoltaic (PV) panels are widely used in building roofing materials. Their installation primarily relies on bolt fixing, snap-fit ​​connections, or adhesive bonding to splice the tiles. This type of structure only achieves physical fixation in the longitudinal direction through overlapping or simple snap-fitting of adjacent tile edges, failing to form effective longitudinal interlocking. Under strong wind loads, the edge connection points are continuously subjected to stress impacts, making the connectors or fasteners prone to loosening, leading to tile displacement, detachment, or even overturning, posing safety hazards. Furthermore, the reliance on overlapping or single sealing strips at tile joints allows rainwater or debris to easily seep into the building's substrate, causing structural corrosion and electrical safety hazards to the PV modules. Moreover, the current installation of PV panels lacks standardized positioning structures, requiring repeated adjustments to tile positions during installation, easily leading to misalignment and uneven arrangement, affecting roof aesthetics and installation efficiency. Utility Model Content

[0003] To address the problems of existing photovoltaic panels lacking longitudinal interlocking design, resulting in poor wind resistance, insufficient waterproofing and debris protection, and inconvenient installation and positioning, this utility model provides a building-use thermal storage photovoltaic panel.

[0004] The technical solution of this utility model is as follows:

[0005] A building-mounted solar thermal storage photovoltaic panel is characterized by comprising a corrugated photovoltaic panel body, a corrugated waterproof sealing support strip that adheres to the top surface of the photovoltaic panel body, and a plurality of slots on the support strip; and an insert strip that corresponds to and can be inserted into the slots of the adjacent photovoltaic panel below, located on the bottom side of the photovoltaic panel body away from the support strip. The close fit between the support strip and the photovoltaic panel body provides a basic insertion structure, and the longitudinal interlocking connection between adjacent photovoltaic panels is achieved through the slots on the support strip and the bottom insert strip, enhancing the stability of the overall structure and preventing displacement or overturning under strong wind loads. Simultaneously, the support strip provides an initial waterproof sealing layer, reducing the risk of debris or rainwater ingress. Furthermore, the insertion method provides a standardized positioning structure for photovoltaic panel installation, avoiding repeated adjustments to tile positions, misalignment, and uneven arrangement during installation, thus improving installation efficiency and overall wind and waterproof performance.

[0006] As described above, the support strip of a building-mounted thermal storage photovoltaic panel also includes elastic water-blocking strips symmetrically distributed along its two sides. Adding elastic water-blocking strips along the two sides of the support strip forms a physical waterproof barrier, providing dual blocking and diversion of debris or rainwater at the joint between the support strip and the photovoltaic panel body. The water-blocking strips are made of elastic material, enabling them to maintain a seal under thermal deformation or external force, effectively preventing debris or rainwater from entering the building substrate along the joint, avoiding structural corrosion and electrical safety hazards to the photovoltaic modules, and improving overall durability and reliability.

[0007] As a preferred embodiment, the closest distance between the support strip and the bolts fixing the photovoltaic panel body is no less than twice the thickness of the photovoltaic panel. This design optimizes the load transfer path and prevents structural failure. Since the support strip directly bears the roof load (such as wind pressure and snow load), and the bolt installation requires drilling mounting holes in the photovoltaic panel body, if the distance is too close, stress concentration points will form in the hole area, increasing the risk of structural damage to the photovoltaic panel in the hole area. By forcing a distance of ≥2 times the panel thickness, stress can be distributed to a larger area of ​​the photovoltaic panel body, avoiding the superposition of local weakened areas and high-stress areas of the support strip.

[0008] Furthermore, the slots are positioned at the crests and troughs of the photovoltaic panel body. Positioning the slots at the crests and troughs facilitates slotting during photovoltaic panel manufacturing, optimizes the structural stability of the connection points, and prevents loosening. In addition, using the crests and troughs as natural positioning references facilitates automatic alignment during installation, simplifies the installation process, solves the problem of misalignment caused by the lack of standardized positioning in traditional photovoltaic panels, improves installation accuracy and efficiency, and enhances overall wind resistance.

[0009] Furthermore, the depth of the slot is greater than the length of the insert, preferably not less than 2cm. A slot depth greater than the insert length provides ample insertion space and redundant depth, ensuring the connection remains stable under wind loads or thermal expansion deformation, preventing the insert from loosening or shifting. Secondly, the standardized design with a depth of not less than 2cm enhances the reliability of the connection and its pull-out resistance, effectively improving the wind resistance and long-term stability of the overall photovoltaic panel structure.

[0010] In one preferred embodiment, the insert is fixed to the bottom of the photovoltaic panel body using connectors or adhesive. Using screws or other connectors or strong adhesives to firmly install or bond the insert to the photovoltaic panel simplifies the manufacturing process and improves production efficiency.

[0011] In a preferred embodiment, the cross-sectional shapes of the insert and the slot are matched trapezoidal or dovetail shapes, forming a self-locking anti-detachment structure. The trapezoidal or dovetail cross-section design utilizes a shape interlocking mechanism to achieve a self-locking function, making it difficult for the insert to detach after insertion into the slot, thus forming a mechanical lock. This maintains connection stability under strong winds or other external forces, effectively preventing accidental loosening. It achieves longitudinal interlocking between adjacent upper and lower photovoltaic panels, solving the problem of unreliable fixation in traditional overlapping connections, and improving the overall safety of the photovoltaic panel as well as its waterproof and debris-proof sealing performance.

[0012] In addition, the top surface of the photovoltaic panel is coated with a coating that enhances light absorption. The coating's optical properties improve the efficiency of capturing incident light energy, optimize the photovoltaic panel's power generation performance, and enhance energy conversion efficiency. The coating also provides additional protection, extends the photovoltaic panel's lifespan, and indirectly enhances structural reliability, resulting in better economic and environmental benefits in building applications.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model is a building-use thermal storage photovoltaic panel. It adopts a composite structure of a corrugated body, a waterproof support strip with a slot at the top, and a bottom insert strip. Through the longitudinal interlocking of the insert strip with the slot of the adjacent photovoltaic panel, it solves the problems of insufficient wind and water resistance, debris prevention and inconvenient installation and positioning of traditional photovoltaic panels. It improves the structural stability, reduces the risk of rainwater or debris entering, and optimizes the installation efficiency. Attached Figure Description

[0015] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0016] In the attached diagram:

[0017] Figure 1 This is a perspective view of the photovoltaic panel in the embodiment;

[0018] Figure 2 This is a top view of the photovoltaic panel in the embodiment;

[0019] Figure 3 This is a front view of the photovoltaic panel in the embodiment;

[0020] Figure 4 This is a 1-1 cross-sectional view of the photovoltaic panel in the embodiment;

[0021] Figure 5 This is a schematic cross-sectional view of the photovoltaic panel installation and connection in the embodiment;

[0022] Figure 6 This is a schematic diagram of another insertion structure for the insert and slot in the embodiment.

[0023] The components represented by the various reference numerals in the diagram are:

[0024] 1. Photovoltaic panel body; 2. Support strip; 21. Slot; 22. Water-blocking strip; 3. Insert strip; 4. Bolt. Detailed Implementation

[0025] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings.

[0026] Example 1

[0027] This embodiment provides a building-use thermal storage photovoltaic panel, see [link / reference] Figure 1-5 The photovoltaic panel includes a wavy photovoltaic panel body 1. This type of curved photovoltaic panel is also commonly referred to as photovoltaic tile or solar tile in the field, and is an existing product on the market, manufactured by domestic and foreign manufacturers such as Tesla and Hubei Hanergy Photovoltaic Technology Co., Ltd. Therefore, its basic power generation and heat storage functions and working principle will not be described in detail in this patent, but can be found in similar products on the market.

[0028] In this embodiment, the photovoltaic panel body 1 is fixed to the mounting bracket by bolts 4. A corrugated waterproof sealing support strip 2 is provided on the top side of the photovoltaic panel body 1, which is in contact with its top surface. The support strip 2 has 6 slots 21. On the bottom side of the photovoltaic panel body 1 away from the support strip 2, there are 6 insert strips 3 that correspond to the slots 21 of the adjacent photovoltaic panel below and can be inserted and mated. The fit design between the support strip 2 and the photovoltaic panel body 1 provides a basic insertion structure. The slots 21 on the support strip 2 and the bottom insert strips 3 are mated to achieve longitudinal interlocking connection between adjacent photovoltaic panels, which enhances the stability of the overall structure and prevents displacement or overturning under strong wind loads. At the same time, the support strip 2 provides an initial waterproof sealing layer, reducing the risk of debris or rainwater entering. In addition, the insertion method provides a standardized positioning structure for the installation of photovoltaic panels, avoiding problems such as repeated adjustment of tile positions, misalignment, and uneven arrangement during installation, thus improving installation efficiency and overall wind and waterproof performance.

[0029] In this embodiment, the distance between the peaks and troughs of the photovoltaic panel body 1 is 15cm, and the wave height is 3cm. This size can also be modified and customized according to construction needs.

[0030] Alternatively, as an optional measure, although not shown in the figure, the location of bolt 4 can also be provided with additional sealing strips and / or reinforcing ribs, just like existing market products, to improve sealing and / or installation stability.

[0031] In this embodiment, the support strip 2 also includes elastic water-blocking strips 22 symmetrically distributed on its two side edges. The addition of elastic water-blocking strips 22 on both side edges of the support strip 2 forms a physical waterproof barrier, providing double blocking or diversion of debris or rainwater at the joint between the support strip 2 and the photovoltaic panel body 1. The water-blocking strips 22 are made of elastic material, enabling them to maintain a seal under thermal deformation or external force, effectively preventing debris or rainwater from entering the building substrate along the joint, avoiding structural corrosion and electrical safety hazards of the photovoltaic modules, and improving overall durability and reliability.

[0032] In this embodiment, the closest distance between the support strip 2 and the bolt 4 fixing the photovoltaic panel body 1 is no less than twice the thickness of the photovoltaic panel body 1, and preferably three times. This design is to optimize the load transfer path and prevent structural failure. Since the support strip 2 directly bears the roof load (such as wind pressure and snow load), and the bolt 4 needs to be installed in the photovoltaic panel body 1 with mounting holes, if the distance is too close, stress concentration points will form in the hole area, increasing the risk of structural damage to the photovoltaic panel in the hole area. By forcing a distance ≥ twice the panel thickness, the stress can be distributed to a larger area of ​​the photovoltaic panel body 1, avoiding the superposition of local weakened areas and high-stress areas of the support strip 2.

[0033] Furthermore, the slot 21 is located at the crests and troughs of the photovoltaic panel body 1, and the depth of the slot 21 is greater than the length of the insert 3, with a depth of not less than 2 cm, preferably 3 cm. Positioning the slot 21 at the crests and troughs of the photovoltaic panel body 1 facilitates grooving during photovoltaic panel manufacturing, optimizes the structural stability of the connection point, and prevents loosening. In addition, using the crests and troughs as natural positioning references facilitates automatic alignment during installation, simplifies the installation process, solves the problem of misalignment caused by the lack of standardized positioning in traditional photovoltaic panels, improves installation accuracy and efficiency, and enhances overall wind resistance. The depth of the slot 21, greater than the length of the insert 3, provides sufficient insertion space and redundant depth for the insert 3, ensuring the connection remains stable under wind loads or thermal expansion deformation, and preventing the insert 3 from loosening or shifting. Secondly, the standardized design with a depth of not less than 2 cm enhances the reliability of the connection and resistance to pull-out, effectively improving the wind resistance and long-term stability of the overall photovoltaic panel structure.

[0034] Furthermore, the insert 3 is fixed to the bottom of the photovoltaic panel body 1 by means of connectors or by adhesive, preferably by adhesive. The cross-sectional shape of the insert 3 and the slot 21 are matching trapezoids or dovetails. In this embodiment, it is trapezoidal. The entrance of the slot 21 is narrow and the bottom is wide. The insert 3 needs to be squeezed and deformed to enter. After insertion, it is locked in the slot due to the shape recovery, realizing self-locking and preventing dislodgement. After the insert 3 is inserted, the inclined side of the trapezoid forms a tight fit with the inner wall of the slot 21, generating static friction to resist the pull-out force, further preventing dislodgement.

[0035] Using a strong adhesive, the insert 3 is firmly bonded to the photovoltaic panel, simplifying the manufacturing process and improving production efficiency. Alternatively, the insert 3 can also be installed and fixed to the bottom of the photovoltaic panel body 1 using screws or other mounting components.

[0036] The trapezoidal or dovetail cross-section design is used to achieve a self-locking function through shape interlocking mechanism, making it difficult for the insert 3 to come out after being inserted into the slot 21, forming a mechanical lock. Under strong winds or other external forces, the connection is kept stable, effectively preventing accidental loosening. This achieves longitudinal interlocking between adjacent upper and lower photovoltaic panels, solving the problem of unreliable fixation in traditional overlapping connections, and improving the overall safety of the photovoltaic panel as well as its waterproof and debris-proof sealing.

[0037] In addition, the top surface of the photovoltaic panel body 1 is coated with a coating that enhances light absorption. The coating improves the incident light energy capture efficiency through its optical properties, optimizes the photovoltaic panel's power generation performance, and enhances energy conversion efficiency. The coating also provides additional protection, extends the photovoltaic panel's lifespan, and indirectly enhances structural reliability, enabling it to achieve better economic and environmental benefits in building applications.

[0038] Example 2

[0039] like Figure 6 As shown, the difference between this embodiment and embodiment 1 is that the cross-section of the insert 3 is a dovetail shape with an open bottom, and the slot 21 is provided with an annular retaining strip. During installation, the insert 3 is squeezed and deformed during insertion, so that it is inserted under the retaining strip. Once the insert 3 is fully inserted, the insert 3 springs back to its original position, and the retaining strip acts as a physical barrier to lock the insert 3 under the retaining strip, forming a self-locking anti-disengagement structure.

Claims

1. A building-mounted thermal storage photovoltaic panel, characterized in that, The photovoltaic panel includes a wave-shaped photovoltaic panel body (1), and a wave-shaped waterproof sealing support strip (2) is provided on one side of the top of the photovoltaic panel body (1) and is attached to its top surface. The support strip (2) has several slots (21). The bottom of the photovoltaic panel body (1) on the side away from the support bar (2) is provided with a plug bar (3) that corresponds to the slot (21) of the adjacent photovoltaic panel below and can be inserted and matched.

2. The building-use thermal storage photovoltaic panel according to claim 1, characterized in that, The support strip (2) also includes elastic water-blocking strips (22) symmetrically distributed on its two sides.

3. A building-use thermal storage photovoltaic panel according to claim 1 or 2, characterized in that, The closest distance between the support bar and the bolt (4) that fixes the photovoltaic panel body (1) is not less than twice the thickness of the photovoltaic panel.

4. A building-use thermal storage photovoltaic panel according to claim 1, characterized in that, The slot (21) is located at the crest and trough of the photovoltaic panel body (1).

5. A building-mounted thermal storage photovoltaic panel according to claim 1, characterized in that, The depth of the slot (21) is greater than the length of the insert (3).

6. A building-use thermal storage photovoltaic panel according to claim 4, characterized in that, The depth of the slot (21) is not less than 2cm.

7. A building-mounted thermal storage photovoltaic panel according to claim 1, characterized in that, The insert (3) is fixed to the bottom of the photovoltaic panel body (1) by means of a connector or by adhesive bonding.

8. A building-mounted thermal storage photovoltaic panel according to claim 1, characterized in that, The cross-sectional shapes of the insert (3) and the slot (21) are trapezoidal or dovetail-shaped and match each other, forming a self-locking anti-detachment structure.

9. A building-use thermal storage photovoltaic panel according to claim 1, characterized in that, The top surface of the photovoltaic panel body (1) is provided with a coating that enhances light absorption.

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