CN113898134A

CN113898134A - Photovoltaic roofing system

Info

Publication number: CN113898134A
Application number: CN202111277286.4A
Authority: CN
Inventors: 张福家; 戴毅铭; 刘舟; 杨摇; 文建峰; 彭晋卿
Original assignee: HUNAN LULUTONG PLASTIC CO Ltd; Hunan Red Solar New Energy Science And Technology Co ltd
Current assignee: HUNAN LULUTONG PLASTIC CO Ltd; Hunan Red Solar New Energy Science And Technology Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-01-07

Abstract

The invention discloses a photovoltaic roofing system, which comprises an array lapped by photovoltaic tiles, wherein each photovoltaic tile comprises a photovoltaic bearing tile and a photovoltaic plate and/or a matching plate, each photovoltaic bearing tile comprises a bearing plate, the bearing plate is provided with a first clamping part and a tail clamping part which are vertically or obliquely and upwards arranged, the first clamping part is arranged at one side edge of the bearing plate, and the tail clamping part is arranged at a position close to the inner side of the other side edge of the bearing plate; the first clamping and connecting part and the tail clamping and connecting part are used for clamping and fixing the photovoltaic panel and/or the matched panel; the outer side of the first clamping portion is provided with a lapping hook assembly, the upper edge of the supporting plate positioned on one side of the tail clamping portion is provided with a lapping table assembly, and lapping of the photovoltaic supporting tiles adjacent to the side surfaces is completed through matching of the lapping table assembly and the lapping hook assembly. The invention has the advantages of simple structure, convenient installation, better integral effect and the like.

Description

Photovoltaic roofing system

Technical Field

The invention mainly relates to the technical field of photovoltaic, in particular to a photovoltaic roof system.

Background

Nowadays, with the development of industry, new energy is more and more emphasized, and the utilization of solar energy is more and more common. At present, solar energy resources in China are very rich, and the theoretical storage capacity reaches 17000 million tons of standard coal every year. The potential of developing and utilizing solar energy resources is very huge. By the end of this century, new energy will reach 80% of all energy consumption, while photovoltaic power generation will account for 60% of new energy.

Generally, solar power generation refers to solar photovoltaic power generation, referred to as "photovoltaic". Photovoltaic power generation is a technology of directly converting solar energy into electrical energy by utilizing the photovoltaic effect of a semiconductor interface. Solar energy belongs to clean energy, not only protects the ecological environment, but also saves a large amount of energy such as coal. The photovoltaic module generated according to the photovoltaic effect has wide application; for example, photovoltaic modules are used for manufacturing photovoltaic tiles, and the photovoltaic tiles are paved on a roof, so that autonomous power generation can be realized.

The traditional photovoltaic tile is generally of a single-layer structure, namely, a photovoltaic product is formed by directly laying photovoltaic panels. In the actual use process of the product, the problems are that:

1. in the photovoltaic power generation process, when hot spot effect is often generated, once the phenomenon of heat concentration occurs, the product can be burnt through, and water leakage on the roof can be caused.

2. When the surface rainwater is large, the single-layer structure is easy to generate rainwater backflow overflow in the butt joint gap of the two tiles.

3. The overall strength, sound insulation and heat insulation effects of the single-layer structure products are not ideal enough.

For this reason, practitioners have also proposed that photovoltaic panels be directly bonded and fixed to a photovoltaic support tile to form a composite structure. The photovoltaic bearing tile is used for supporting the photovoltaic panel, is convenient to fix and install, forms a base structure and plays a certain defense role in roof water leakage. The existing composite structure is generally that a mounting groove is formed in a photovoltaic bearing tile, then a direct photovoltaic panel is laid in the mounting groove, and then the photovoltaic panel and the photovoltaic bearing tile are connected into a whole by using an adhesive. However, there are also problems with this prior art composite structure:

1. the direct fitting installation mode still has not good enough sound insulation, thermal-insulated effect.

2. After a plurality of composite structures are laid on a roof, the butt joint gaps between adjacent composite structures are easy to cause rainwater backflow and overflow.

3. The photovoltaic tile in the prior art is characterized in that grooves are formed in the upper surface of a direct photovoltaic bearing tile, a photovoltaic plate is directly laid in the grooves, and glue is applied to the periphery of the photovoltaic plate, so that the photovoltaic plate and the photovoltaic bearing tile are mutually glued and fixed. Because the adhesive is directly exposed in the external environment, the adhesive is easy to age in a long-time use process, so that the connection stability between the photovoltaic panel and the photovoltaic bearing tile is poor, and the service life of the whole photovoltaic tile is influenced.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: aiming at the technical problems in the prior art, the invention provides a photovoltaic roof system which is simple in structure, convenient to install and good in overall effect.

In order to solve the technical problems, the invention adopts the following technical scheme:

a photovoltaic roofing system comprises an array overlapped by photovoltaic tiles, wherein the photovoltaic tiles comprise photovoltaic bearing tiles, photovoltaic plates and/or matching plates, each photovoltaic bearing tile comprises a bearing plate, the bearing plate is provided with a first clamping and connecting part and a tail clamping and connecting part which are vertically or obliquely and upwards arranged, the first clamping and connecting part is arranged on one side edge of the bearing plate, and the tail clamping and connecting part is arranged near the inner side of the other side edge of the bearing plate; the first clamping and connecting part and the tail clamping and connecting part are used for clamping and fixing the photovoltaic panel and/or the matched panel; the outer side of the first clamping portion is provided with a lapping hook assembly, the upper edge of the supporting plate positioned on one side of the tail clamping portion is provided with a lapping table assembly, and lapping of the photovoltaic supporting tiles adjacent to the side surfaces is completed through matching of the lapping table assembly and the lapping hook assembly.

As a further improvement of the invention: and a space is reserved between the photovoltaic panel or the matched panel arranged in the first clamping part and the tail clamping part and the supporting plate to form an interlayer.

As a further improvement of the invention: photovoltaic board and/or adapted integrated circuit board connect be fixed in two relative head joint portion that set up with the back in the tail joint portion and form a whole through gluing the seal.

As a further improvement of the invention: the first clamping portion and the tail clamping portion are provided with clamping interfaces which are grooves for containing and supporting the end portions of the photovoltaic panel or the matched panel.

As a further improvement of the invention: the lap joint table assembly comprises a lap joint arm and a lap joint table, one end of the lap joint arm is connected to the supporting plate, the other end of the lap joint arm is provided with the lap joint table, and the lap joint hook assembly is matched with the lap joint table to form lap joint.

As a further improvement of the invention: the lapping arms are vertically or obliquely and upwards arranged, and a connecting groove is formed between the lapping arms and the tail clamping part at a certain interval; the hook component comprises a hook platform and a hook arm, the hook arm extends into the connecting groove to form matching, and the hook platform falls on the hook platform to form matching.

As a further improvement of the invention: the first clamping connection part and the tail clamping connection part are integrally formed with the support plate.

As a further improvement of the invention: the first clamping part, the tail clamping part, the supporting plate, the lap joint table assembly and the lap hook assembly are integrally formed.

As a further improvement of the invention: the first clamping connection part, the tail clamping connection part, the supporting plate, the lap joint table assembly, the lap hook assembly and the matching plate are integrally formed.

As a further improvement of the invention: photovoltaic board packs into photovoltaic bearing tile's first joint portion and tail joint portion back, the terminal surface and the photovoltaic bearing tile terminal surface of photovoltaic board stagger, the terminal surface of photovoltaic board incoming photovoltaic bearing tile is female end, the terminal surface that photovoltaic board stretches out photovoltaic bearing tile is male end, and female end that the male end from the top overlap joint of passing through photovoltaic tile goes into another piece of photovoltaic tile forms the cooperation, the overlap joint of two adjacent photovoltaic tiles about realizing.

As a further improvement of the invention: the method is characterized in that the local bulge of the first clamping part and the local bulge of the tail clamping part of one section of the photovoltaic bearing tile exposed at the female end of the photovoltaic panel are cut off, so that the communication between the connecting groove and the interlayer drainage channel is realized, and the interference of the clamping part on the lap joint of the upper photovoltaic tile and the lower photovoltaic tile is eliminated.

As a further improvement of the invention: install in joint portion remain between photovoltaic board or adapted board and the backup pad and have the interval to form the intermediate layer.

As a further improvement of the invention: two joint portion is a set of, and the joint interface in every group in two joint portions is mutual disposition, photovoltaic board or adapted board are fixed in the joint interface of two relative settings through the joint.

As a further improvement of the invention: the photovoltaic board or the matched board is connected and fixed in the two oppositely arranged clamping interfaces and then is sealed into a whole through glue.

As a further improvement of the invention: the clip interface is a recess for receiving and supporting the end of a photovoltaic panel or adapted panel.

As a further improvement of the invention: one end of the supporting plate is provided with a lapping table assembly, the other end of the supporting plate is provided with a lapping hook assembly, and lapping of adjacent supporting plates is completed through matching of the lapping table assembly and the lapping hook assembly.

As a further improvement of the invention: the lapping assembly comprises a lapping arm and a lapping table, one end of the lapping arm is connected to the bearing plate, the other end of the lapping arm is provided with the lapping table, and the lapping hook assembly is matched with the lapping table to form connection.

As a further improvement of the invention: the lapping arms are vertically or obliquely and upwards arranged, and a connecting groove is formed between the lapping arms and the tail clamping part at a certain interval; the hook component comprises a hook arm and a hook platform, the hook arm extends into the connecting groove to form matching, and the hook platform falls on the hook platform to form matching.

As a further improvement of the invention: the connecting groove has the functions of water drainage and water guide.

As a further improvement of the invention: the clamping part and the supporting plate are integrally formed.

As a further improvement of the invention: the clamping part, the supporting plate, the lapping table component and the lapping hook component are integrally formed.

The invention further provides a photovoltaic tile comprising a photovoltaic panel and a photovoltaic support tile according to any one of the above.

The invention further provides an integrated supporting tile, which comprises a supporting plate and any one photovoltaic supporting tile; the interlayer between the matching plate and the bearing plate is provided with more than one strip-shaped support connection, and the matching plate, the strip-shaped support connection and the photovoltaic bearing tile are integrally formed.

The present invention further provides a roofing system comprising a plurality of the above photovoltaic tiles and a plurality of the above integral distribution tiles.

Compared with the prior art, the invention has the advantages that:

1. the photovoltaic roof system has the advantages of simple structure, convenience in installation, better overall effect, capability of quickly finishing tile surface array installation in a clamping connection mode, accurate and attractive positioning and good reliability.

2. The photovoltaic roofing system is of a double-layer structure, when a product generates a hot spot effect in the photovoltaic power generation process, the photovoltaic panel cannot burn through due to heat concentration because of interlayer air convection, and even if the photovoltaic panel burns through, roof water leakage cannot be caused because of the existence of the photovoltaic supporting tile.

3. The photovoltaic roof system is provided with the connecting groove and the drainage groove, when rainwater on the surface of the photovoltaic tile is too large, the rainwater overflowing from the butt joint of the tiles enters the drainage channel formed on the surface of the photovoltaic bearing tile to be drained, and water leakage cannot be caused.

4. The photovoltaic roof system disclosed by the invention is of a double-layer structure and has double drainage channels, and due to interlayer air convection, the photovoltaic roof system has excellent drainage, heat insulation, waterproof and sound insulation effects, can replace the functions of a waterproof layer and a heat insulation layer of a traditional roof, and can save the roof building cost.

5. The photovoltaic roofing system is used for configuring the position of a roof which is not suitable for mounting photovoltaic tiles, and is simple to cut and trim, and light and reliable to mount.

Drawings

Fig. 1 is a schematic structural diagram of a photovoltaic bearing tile in a specific application example of the invention.

Fig. 2 is a schematic view of the structural principle of the photovoltaic support tile after the photovoltaic tile is installed in a specific application example of the invention.

Fig. 3 is a schematic structural diagram of a photovoltaic roofing system in a specific application example of the invention.

Fig. 4 is a schematic structural diagram of the photovoltaic tile after the photovoltaic tiles are installed and overlapped adjacently in a specific application example.

Fig. 5 is a partial enlarged structural diagram of the photovoltaic support tile when the photovoltaic support tile is lapped in a specific application example of the invention.

Description of the figures

1. A support plate; 2. a tail snap-fit portion; 201. a card interface; 3. a photovoltaic panel; 4. an interlayer; 5. a lap table assembly; 501. a lapping arm; 502. a lapping table; 503. connecting grooves; 6. a hook component; 601. a hook arm; 602. a hook platform; 7. the first joint part.

Detailed Description

The invention will be described in further detail below with reference to the drawings and specific examples.

As shown in fig. 1 to 5, a photovoltaic roofing system according to the present invention includes an array overlapped by photovoltaic tiles, the photovoltaic tiles include photovoltaic support tiles, and photovoltaic panels 3 and/or adapted panels (not shown, installed on the same side of the photovoltaic panels 3), the photovoltaic support tiles include support panels 1, the support panels 1 are provided with first fastening portions 7 and tail fastening portions 2 arranged vertically or obliquely upward, the first fastening portions 7 are disposed on one side edge of the support panels 1, and the tail fastening portions 2 are disposed near the inner side of the other side edge of the support panels 1; the first clamping connection part 7 and the tail clamping connection part 2 are used for clamping and fixing the photovoltaic panel 3 and/or the matched panel; the outer side of the first clamping part 7 is provided with a lapping hook assembly 6, the upper edge of the support plate 1 positioned on one side of the tail clamping part 2 is provided with a lapping table assembly 5, and the lapping of the adjacent photovoltaic support tiles on the side surfaces is completed through the matching of the lapping table assembly 5 and the lapping hook assembly 6.

In a specific application example, the photovoltaic panel 3 includes a power generation panel and a connector, and the power generation panel can convert sunlight into electric energy and output the electric energy through the connector. Is the main functional component of the photovoltaic roofing system. And the supporting plate comprises a flat plate and supporting strips, the supporting strips are positioned at the bottom of the flat plate, one side of each supporting strip is integrally connected with the bottom of the flat plate, and the other side of each supporting strip is in contact with a supporting plate 1 of the photovoltaic supporting tile. The utility panels are used in certain areas of the photovoltaic panel roofing system where the photovoltaic panels 3 need not be deployed to maintain the integrity and aesthetics of the overall system. Photovoltaic panel the photovoltaic panel 3 and the adapted panels are not the main innovation of the present invention, and the structure thereof is not described herein.

Since the photovoltaic panel 3 and the utility panel are used similarly, the following example will be described taking the photovoltaic panel 3 as an example.

In this embodiment, the photovoltaic panel 3 and the support plate 1 mounted in the card interfaces of the first card connecting portion 7 and the tail card connecting portion 2 have a gap therebetween to form an interlayer 4. The space of the interlayer 4 is determined by the height of the first clamping part 7 and the height of the tail clamping part 2, and the height of the clamping parts can be selected according to actual needs to form a proper interlayer. The interlayer 4 contains air, namely an air interlayer is formed. When the photovoltaic product generates hot spot effect in the photovoltaic power generation process, the photovoltaic panel 3 can not burn through due to heat concentration because of air convection in the interlayer 4, and even if the photovoltaic panel burns through, roof water leakage can not be caused because of the layer of the supporting plate 1. In addition, once the burning-through phenomenon occurs, the interlayer 4 can form a certain water containing space for preventing water leakage.

In this embodiment, joint interface 201 on first joint portion 7 and the tail joint portion 2 is mutual disposition, that is to say, the opening orientation of the joint interface 201 of two joint portions sets up to the position relatively in every group, photovoltaic board 3 is then fixed in the joint interface 201 of two relative settings through the joint.

In this embodiment, the photovoltaic panel 3 is fixed in the two oppositely arranged card interfaces 201 and then is sealed by glue to form a whole.

In the preferred embodiment, the clip interface 201 is a recess for receiving and supporting the end of the photovoltaic panel 3; moreover, can be used for the encapsulating through this recess, whole glue just seals in the recess after the encapsulating, not only can provide the best sealed fastening effect, can also avoid gluing to expose among the air, prevents to drop after long-term solarization and rain drenches to increase of service life.

Further, through setting up overlap joint platform subassembly 5 and hasp subassembly 6 to utilize cooperation between them just can accomplish the overlap joint of adjacent bearing plate 1, namely accomplish the overlap joint of the adjacent photovoltaic bearing tile of side through the cooperation of overlap joint platform subassembly 5 and hasp subassembly 6. That is to say, two adjacent photovoltaic supporting tiles (supporting plates 1) can be lapped through the lapping table assembly 5 and the lapping hook assembly 6, and so on, and finally a complete photovoltaic panel roofing system with a large area is formed.

Further, as a preferred embodiment, the overlapping assembly 5 comprises an overlapping arm 501 and an overlapping platform 502, one end of the overlapping arm 501 is connected to the supporting plate 1, the other end of the overlapping arm 502 is provided with the overlapping platform, and the hook assembly 6 is matched with the overlapping arm 501 and the overlapping platform 502 to form an overlapping joint.

In this example, the bridging arm 501 is arranged vertically or obliquely upwards, and a connecting groove 503 is formed between the bridging arm 501 and the clamping part with a certain distance; the hook component 6 comprises a hook arm 601 and a hook platform 602, the hook arm 601 extends into the connecting groove 503 to form matching, and the hook platform 602 falls on the lap table 502 to form matching. Generally, to ensure the flatness of the lap joint, the landing platform 602 is parallel to the landing platform 502, forming a flat fit.

After the photovoltaic panel 3 is mounted on the adjacent supporting plate 1 after the overlapping is completed, rainwater generally flows away from the photovoltaic panel 3 along the gravity direction, and once the rainwater which cannot flow away smoothly falls into the connecting groove 503 under the condition of large rainfall, the connecting groove 503 plays the role of an overflow groove. The connection groove 503 has a function of water guiding and draining itself. Further, as a preferred embodiment, a drain hole may be preferably disposed on the connecting groove 503, and the drain hole may drain accumulated water without affecting the whole product. The drain hole can set up certain drainage direction, utilizes its guidance quality to reduce the influence of ponding to whole product. It will be appreciated that the drain hole is not directed towards the interior of the room, but rather is a hole that serves as a guide to allow drainage without affecting the effectiveness of the overall photovoltaic roofing system.

In a specific embodiment, the first clamping portion 7 and the tail clamping portion 2 are integrally formed with the support plate 1.

In a specific embodiment, the first clamping part 7, the tail clamping part 2, the support plate 1, the lap table assembly 5 and the hook assembly 6 are all integrally formed.

In a specific example, the photovoltaic tiles 3 are overlapped up and down as follows: the male end of the upper photovoltaic tile 3 is pressed into the female end of the lower photovoltaic tile 3 from top to bottom, so that the photovoltaic panel 3 of the upper photovoltaic tile is partially overlapped with the photovoltaic panel 3 of the lower photovoltaic tile, the photovoltaic bearing tile of the upper photovoltaic tile 3 is overlapped with the exposed end of the photovoltaic bearing tile of the lower photovoltaic tile 3, and the upper and lower lap joints of the photovoltaic tiles 3 are realized.

Further, photovoltaic board 3 packs into photovoltaic bearing tile's first joint portion 7 and tail joint portion 2 after, the terminal surface and the photovoltaic bearing tile terminal surface of photovoltaic board 3 stagger, the terminal surface of photovoltaic board 3 income photovoltaic bearing tile is female end B, the terminal surface that photovoltaic board 3 stretches out photovoltaic bearing tile is male end A, and female end B that the lap-joint goes into another piece of photovoltaic tile from top to bottom through the male end of photovoltaic tile 3 forms the cooperation, realizes the overlap joint of two adjacent photovoltaic tiles from top to bottom. And the local bulge of the first clamping part 7 and the local bulge of the tail clamping part 2 of one section of the photovoltaic supporting tile exposed out of the female end B of the photovoltaic plate 3 are cut off, so that the communication between the connecting groove 503 and the interlayer drainage channel is realized, and the interference of the clamping part on the lap joint of the upper photovoltaic tile and the lower photovoltaic tile is eliminated.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.

Claims

1. A photovoltaic roofing system comprises an array overlapped by photovoltaic tiles, wherein each photovoltaic tile comprises a photovoltaic bearing tile and a photovoltaic plate and/or a matching plate, and the photovoltaic bearing tile is characterized by comprising a bearing plate, wherein the bearing plate is provided with a first clamping part and a tail clamping part which are vertically or obliquely and upwards arranged, the first clamping part is arranged at one side edge of the bearing plate, and the tail clamping part is arranged at a position close to the inner side of the other side edge of the bearing plate; the first clamping and connecting part and the tail clamping and connecting part are used for clamping and fixing the photovoltaic panel and/or the matched panel; the outer side of the first clamping portion is provided with a lapping hook assembly, the upper edge of the supporting plate positioned on one side of the tail clamping portion is provided with a lapping table assembly, and lapping of the photovoltaic supporting tiles adjacent to the side surfaces is completed through matching of the lapping table assembly and the lapping hook assembly.

2. The photovoltaic roofing system of claim 1 wherein the photovoltaic panels or utility panels mounted in the first and second clips are sandwiched between the support panel and the photovoltaic panel or utility panel with a spacing therebetween.

3. The photovoltaic roofing system of claim 1, wherein the photovoltaic panels and/or utility panels are integrally bonded and secured to the two opposing header and footer joints by glue sealing.

4. The photovoltaic roofing system of claim 1 wherein the leading and trailing snap-fit portions have a snap-fit interface, the snap-fit interface being a recess configured to receive and support an end of a photovoltaic panel or adapted panel.

5. The photovoltaic roofing system of any one of claims 1 to 4 wherein the lap table assembly includes a lap arm and a lap table, one end of the lap arm being connected to the support plate and the other end of the lap arm providing the lap table, the lap hook assembly cooperating with the lap table to form the lap joint.

6. The photovoltaic roofing system of claim 5, wherein the bridging arms are vertically or obliquely arranged upwards, and a connecting groove is formed between the bridging arms and the tail clamping part at a certain distance; the hook component comprises a hook platform and a hook arm, the hook arm extends into the connecting groove to form matching, and the hook platform falls on the hook platform to form matching.

7. The photovoltaic roofing system of any one of claims 1 to 4 wherein the head and tail snaps are integrally formed with the support plate.

8. The photovoltaic roofing system of any one of claims 1 to 4 wherein the head and tail snaps, the support plate, the lap joint table assembly, and the lap hook assembly are integrally formed.

9. The photovoltaic roofing system of any one of claims 1 to 4 wherein the head and tail snaps, the support plate, the landing pad assembly, the hook assembly, and the adapted plate are integrally formed.

10. The photovoltaic roofing system according to any one of claims 1 to 4, wherein after the photovoltaic panel is installed in the first and last clamping portions of the photovoltaic bearing tile, the end surface of the photovoltaic panel is staggered with the end surface of the photovoltaic bearing tile, the end surface of the photovoltaic panel into the photovoltaic bearing tile is a female end, the end surface of the photovoltaic panel protruding out of the photovoltaic bearing tile is a male end, and the male end of the photovoltaic panel is lapped into the female end of another photovoltaic tile from top to bottom to form a fit, so that lapping of two adjacent photovoltaic tiles is achieved.

11. The photovoltaic roofing system of claim 10 wherein a section of the photovoltaic support tile exposed at the female end of the photovoltaic panel has a partially raised cut-away first engagement portion and a partially raised cut-away trailing engagement portion.