CN217949569U - Photovoltaic waterproof assembly, photovoltaic tile and building roof - Google Patents

Abstract

The utility model discloses a photovoltaic waterproof assembly, photovoltaic tile and building roof relates to building photovoltaic integration technical field. The utility model provides a photovoltaic waterproof assembly's heat dispersion is good, and the generating efficiency is high. Photovoltaic waterproof component includes photovoltaic module and waterproofing membrane, and photovoltaic module lays the upper surface at waterproofing membrane, and waterproofing membrane is last to have heat radiation structure.

Description

Photovoltaic waterproof assembly, photovoltaic tile and building roof

Technical Field

The utility model relates to a building photovoltaic integration technical field especially relates to a photovoltaic waterproof component, photovoltaic tile and building roof.

Background

Building Integrated Photovoltaic (BIPV) technology is a technology that integrates solar power (photovoltaic) products into buildings. That is, with photovoltaic module integration on the roof or the wall of building, can turn into the electric energy with shining the sunshine on the building, can effectively reduce the building energy consumption.

In the prior art, a photovoltaic module can be installed on a roof to realize the photovoltaic integration of a building.

However, when the photovoltaic module is installed on a roof, a gap may be formed at the installation structure, and further, there is a risk of water leakage from the roof.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a photovoltaic waterproof component, photovoltaic tile and building roof, this photovoltaic waterproof component's heat dispersion is good, and the generating efficiency is high.

The utility model provides a photovoltaic waterproof assembly, including photovoltaic module and waterproofing membrane, photovoltaic module lays at waterproofing membrane's upper surface, and waterproofing membrane is last to have heat radiation structure.

Through above-mentioned technical scheme, photovoltaic module and waterproofing membrane range upon range of link together, can play waterproof and effect of electricity generation simultaneously. Because photovoltaic module can produce the heat during the electricity generation, consequently, set up heat radiation structure on waterproofing membrane can be favorable to quick heat dissipation to avoid the heat gathering to lead to waterproofing membrane's performance to change, and reduce the adverse effect that produces photovoltaic module generating efficiency because of generating heat, make photovoltaic module have higher generating efficiency. Therefore, the photovoltaic waterproof assembly is good in heat dissipation performance and high in power generation efficiency.

In a possible implementation manner, the photovoltaic module comprises a transparent packaging plate, an upper adhesive layer, a battery piece and a lower adhesive layer, wherein the transparent packaging plate, the upper adhesive layer, the battery piece, the lower adhesive layer and the waterproof roll are sequentially stacked from top to bottom; the upper glue layer bonds the transparent packaging plate and the battery piece together, and the lower glue layer bonds the battery piece and the waterproof roll together. Under the condition of adopting the technical scheme, the waterproof coiled material serves as the back plate of the photovoltaic module, replaces the traditional back plate of the photovoltaic module, and integrates waterproof and power generation functions.

In a possible implementation manner, the heat dissipation structure includes a plurality of first heat dissipation grooves on the lower surface of the waterproof roll, and/or a heat-conducting metal piece disposed on the waterproof roll. Is favorable for quick heat dissipation.

In a possible implementation manner, the number of the photovoltaic modules is multiple and the photovoltaic modules are arranged at intervals, and in at least one arrangement direction of the multiple photovoltaic modules, a gap between any two adjacent photovoltaic modules is greater than or equal to the sum of thicknesses of the two photovoltaic modules. Can fold or roll up photovoltaic waterproof component, be convenient for store, pack and transport, can save a large amount of packaging material to the cost of transportation is saved.

The second aspect, the utility model also provides a photovoltaic tile, including connecting piece, heated board and foretell photovoltaic waterproof component, photovoltaic waterproof component stacks at the upper surface of heated board, and the connecting piece links together waterproofing membrane and heated board. The photovoltaic tile can have the performances of power generation, water resistance and heat preservation, has good heat dissipation capacity, and reduces adverse effects on the power generation efficiency due to heating, so that the photovoltaic module has higher power generation efficiency. And the photovoltaic tile can be for having the prefab of certain size, at the job site, with polylith photovoltaic tile concatenation as required install on the roof can, can improve the efficiency of construction, reduce construction cost.

In a possible embodiment, the upper surface of the insulation board may have a plurality of second heat dissipation grooves. This second heat dissipation recess can be so that have the heat dissipation channel between the upper surface of heated board and the photovoltaic waterproof component, and this heat dissipation channel is favorable to promoting quick heat dissipation when photovoltaic component generates electricity, reduces because of generating heat and to the harmful effects that generating efficiency produced.

In one possible embodiment, the connecting member is a structural adhesive, a fastener, or a snap-fit member.

In a third aspect, the utility model also provides a building roof, including the above-mentioned photovoltaic waterproof assembly; or, a photovoltaic tile as described above. The building roof can have the functions of power generation and water prevention, the heat dissipation structure is favorable for reducing adverse effects on power generation efficiency due to heating, the photovoltaic module has high power generation efficiency, the building energy can be effectively reduced, low-carbon and zero-carbon buildings are vigorously developed, and the building roof has important practical significance on energy conservation, emission reduction and environment protection.

In a fourth aspect, the utility model also provides a building roof, which comprises a photovoltaic module, a waterproof coiled material and a bearing plate which are sequentially stacked together from top to bottom, wherein a heat dissipation structure is arranged between the waterproof coiled material and the bearing plate; the photovoltaic module comprises a transparent packaging plate, an upper adhesive layer, a battery piece and a lower adhesive layer which are sequentially stacked together from top to bottom, wherein the upper adhesive layer bonds the transparent packaging plate and the battery piece together, and the lower adhesive layer bonds the battery piece and the waterproof coiled material together; or the photovoltaic module comprises a transparent packaging plate, an upper adhesive layer, a battery piece, a lower adhesive layer and a back plate which are sequentially stacked from top to bottom, the transparent packaging plate and the battery piece are bonded together by the upper adhesive layer, the battery piece and the back plate are bonded together by the lower adhesive layer, and the back plate is connected with the waterproof coiled material.

Through above-mentioned technical scheme, heat radiation structure is favorable to when photovoltaic module electricity generation, promotes quick heat dissipation, reduces because of generating heat and to the harmful effects that generating efficiency produced. Therefore, the building roof can have the functions of power generation and water prevention, has a good heat dissipation effect and high power generation efficiency, can effectively reduce energy for buildings, vigorously develops low-carbon and zero-carbon buildings, and has important practical significance for energy conservation, emission reduction and environment protection.

In a possible implementation manner, the heat dissipation structure includes at least one of a plurality of first heat dissipation grooves located on the lower surface of the waterproof roll, a heat-conducting metal piece disposed on the waterproof roll, and a plurality of third heat dissipation grooves located on the upper surface of the loading plate. Wherein, first heat dissipation recess and third heat dissipation recess all can be so that form the heat dissipation passageway between waterproofing membrane and the loading board, are favorable to dispelling the heat fast. The heat conducting metal piece has good heat conducting performance and is beneficial to rapid heat dissipation.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a top view of a photovoltaic waterproof assembly provided by an embodiment of the present invention;

fig. 2 is an exploded view of a photovoltaic waterproof assembly according to an embodiment of the present invention;

fig. 3 is a schematic view of a waterproof roll of a photovoltaic waterproof assembly according to an embodiment of the present invention when being laminated;

fig. 4 is a schematic view of a metal component of a photovoltaic waterproof assembly according to an embodiment of the present invention;

fig. 5 is a schematic folding view of a photovoltaic waterproof assembly provided by an embodiment of the present invention;

fig. 6 is a schematic view of a photovoltaic tile according to an embodiment of the present invention;

fig. 7 is a schematic view of another photovoltaic tile provided by an embodiment of the present invention.

Reference numerals:

1-a photovoltaic module, 11-a transparent packaging plate, 12-an upper adhesive layer, 13-a battery piece and 14-a lower adhesive layer;

2-waterproof coiled material, 21-first heat dissipation groove; 3-metal wires, 4-heat preservation plates, 41-second heat dissipation grooves,

and 5, molding.

Detailed Description

In order to make the technical problem, technical solution and beneficial effects to be solved by the present invention more clearly understood, the following description is made in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1, the utility model provides a photovoltaic waterproof assembly, including photovoltaic module 1 and waterproofing membrane 2, photovoltaic module 1 is laid at waterproofing membrane 2's upper surface, and waterproofing membrane 2 is last to have heat radiation structure.

Through above-mentioned technical scheme, photovoltaic module 1 and waterproofing membrane 2 range upon range of link together, can play waterproof and effect of electricity generation simultaneously. Because photovoltaic module 1 can produce the heat during the electricity generation, consequently, set up heat radiation structure can be favorable to quick heat dissipation on waterproofing membrane 2 to avoid the heat gathering to lead to waterproofing membrane 2's performance to change, and reduce the adverse effect that produces photovoltaic module 1 generating efficiency because of generating heat, make photovoltaic module 1 have higher generating efficiency. Therefore, the photovoltaic waterproof assembly is good in heat dissipation performance and high in power generation efficiency.

In a possible implementation manner, referring to fig. 1 and 2, the photovoltaic module 1 includes a transparent packaging plate 11, an upper adhesive layer 12, a cell 13 and a lower adhesive layer 14, wherein the transparent packaging plate 11, the upper adhesive layer 12, the cell 13, the lower adhesive layer 14 and the waterproof roll 2 are stacked in sequence from top to bottom; the upper adhesive layer 12 bonds the transparent packaging plate 11 and the cell sheet 13 together, and the lower adhesive layer 14 bonds the cell sheet 13 and the waterproof roll 2 together. Under the condition of adopting this technical scheme, waterproofing membrane 2 has acted as photovoltaic module 1's backplate, has replaced photovoltaic module 1's traditional backplate, collects waterproof and power generation function in an organic whole.

When the photovoltaic waterproof assembly is manufactured, the transparent packaging plate 11, the upper adhesive layer 12, the battery piece 13, the lower adhesive layer 14 and the waterproof roll 2 can be laminated together by utilizing a laminating machine in a heat crosslinking mode, and the upper adhesive layer 12 and the lower adhesive layer 14 are connected to form the complete photovoltaic waterproof assembly. This photovoltaic waterproof component can be prefabricated in advance in the mill, treat when using intercept concatenation can, also can be according to customer's predetermined size preparation.

In another possible embodiment, it is also possible to lay a conventional photovoltaic module 1 directly on the waterproofing membrane 2, as a prefabricated part, for use in construction. The conventional photovoltaic module 1 comprises a transparent packaging plate 11, an upper adhesive layer 12, a battery piece 13, a lower adhesive layer 14 and a conventional back plate, so that the conventional back plate is connected with the waterproof roll material 2. The connection between the traditional back plate and the waterproof coiled material 2 can be bonding, fastener connection or clamping connection.

In one possible implementation, as shown with reference to fig. 3, the heat dissipation structure includes a plurality of first heat dissipation grooves 21 on the lower surface of the waterproofing membrane 2. Under the condition of adopting this technical scheme, first heat dissipation recess 21 is located waterproofing membrane 2's lower surface, and when the in-service use photovoltaic waterproof assembly, waterproofing membrane 2's lower surface and bearing structure (for example heated board 4, the loading board of following description) contact because the existence of first heat dissipation recess 21 can be so that form the heat dissipation passageway between waterproofing membrane 2's lower surface and the bearing structure, and this heat dissipation passageway is favorable to quick heat dissipation.

In the specific manufacturing process, referring to fig. 3, when the photovoltaic module 1 and the waterproof roll 2 are laminated together by using a laminator, the corresponding protruding mold 5 is placed on the lower surface of the waterproof roll 2, so that after the lamination, the waterproof roll 2 is formed into a wave shape, the first heat dissipation groove 21 is formed on the lower surface, the corresponding upper surface is a protrusion, and the lower adhesive layer 14 can also play a role in buffering and accommodating the protrusion and is matched with the upper surface of the waterproof roll 2 in shape.

In one example, the first heat dissipation groove 21 may extend in the width direction of the waterproof roll 2, and its length may be equal to the width of the waterproof roll 2; the plurality of first heat dissipation grooves 21 are arranged at intervals or continuously in the width direction of the waterproof roll 2.

In one example, the first heat dissipation groove 21 may be arc-shaped or polygonal.

In a possible implementation, the heat dissipation structure may further include a heat conductive metal member mounted on the waterproof roll 2. The heat conducting metal piece has good heat conducting performance and is beneficial to rapid heat dissipation.

In one possible embodiment, the heat-conducting metal member may be made of a metal with good heat conductivity and light weight, such as silver, copper, gold, aluminum, iron or magnesium. So as to form the photovoltaic waterproof assembly with light weight and good heat-conducting property.

In a possible embodiment, the heat-conducting metal element comprises metal wires 3, and the metal wires 3 may be located on the upper surface, the lower surface or inside the waterproofing membrane 2. When the wire 3 is positioned on the upper surface or the lower surface of the waterproofing membrane 2, it may be connected to the waterproofing membrane 2 by an adhesive, and a receiving groove may be formed on the upper surface or the lower surface of the waterproofing membrane 2 to receive the wire 3. When the metal wire 3 is located inside the waterproof roll 2, the metal wire 3 may be embedded into the waterproof roll 2 during the process of manufacturing the waterproof roll 2, so as to fix the metal wire 3 inside the waterproof roll 2 by physical adsorption and become a part of the waterproof roll 2. The number of the metal wires 3 can be multiple, and the metal wires 3 are distributed at intervals along the length or width direction of the waterproof roll material 2; alternatively, as shown in fig. 4, a wire mesh formed of a plurality of wires 3 may be provided on the waterproof roll 2.

In a possible embodiment, the heat-conducting metal piece may also comprise a metal sheet, which may be located on the upper surface, on the lower surface or inside the waterproofing membrane 2. When the metal sheet is located on the upper surface or the lower surface of the waterproofing membrane 2, it may be attached to the waterproofing membrane 2 by an adhesive, and a receiving groove may be further formed on the upper surface or the lower surface of the waterproofing membrane 2 to receive the metal sheet. When the metal sheet is located inside the waterproof roll 2, the metal sheet may be embedded into the waterproof roll 2 in the process of manufacturing the waterproof roll 2, so that the metal sheet is fixed inside the waterproof roll 2 by physical adsorption and becomes a part of the waterproof roll 2. The number of the metal sheets may be plural, and the metal sheets are distributed at intervals along the length direction or the width direction of the waterproof roll 2.

The heat conductive metal member may include both the metal wire 3 and the metal sheet, or may include only one of them.

In one example, the adhesive may be an acrylic based adhesive or an epoxy based adhesive.

As can be seen from the above, the heat dissipation structure may include both the heat conductive metal member and the first heat dissipation groove 21, or only one of them.

In addition, in practical application, the upper surface of the waterproof roll 2 faces the sun, and when the waterproof roll is irradiated by sunlight, the photovoltaic module 1 generates heat after the process of converting light energy into electric energy, and the metal wire 3 is required to be used for heat dissipation; if the metal wire 3 is located on the upper surface of the waterproof roll 2 and has an exposed portion directly irradiated by sunlight, the exposed portion absorbs heat of the sunlight and conducts the heat to a hidden portion located below the photovoltaic module 1, and obviously, the metal wire 3 plays a role of heating the photovoltaic module 1 instead. Thus, in a possible embodiment, when the wires 3 are positioned on the upper surface of the waterproofing membrane 2, the wires 3 are positioned in the area covered by the photovoltaic module 1, so as to avoid the wires 3 being exposed to direct sunlight.

Similarly, when the metal sheet is located on the upper surface of the waterproof roll 2, the metal sheet is located in the area covered by the photovoltaic module 1, so as to prevent the metal sheet from being directly irradiated by sunlight.

In a possible implementation manner, referring to fig. 1 and 5, the number of the photovoltaic modules 1 is multiple and the photovoltaic modules 1 are arranged at intervals, and in at least one arrangement direction of the photovoltaic modules 1, a gap between any two adjacent photovoltaic modules 1 is greater than or equal to the sum of thicknesses of the two photovoltaic modules 1.

Here, the arrangement direction of the photovoltaic modules 1 may be one, which is the same as the width direction or the length direction of the photovoltaic waterproof module; or, there are two arrangement directions of the photovoltaic modules 1, one is consistent with the width direction of the photovoltaic waterproof module, and the other is consistent with the length direction of the photovoltaic module 1, and in the two directions, the gap between any two adjacent photovoltaic modules 1 can be larger than or equal to the sum of the thicknesses of the two photovoltaic modules 1.

Under the condition of adopting the technical scheme, no matter the transparent packaging plate 11 is flexible or rigid, the gap between two adjacent photovoltaic modules 1 can be used as a bending part to fold the photovoltaic waterproof module; if the photovoltaic module 1 is flexible, the photovoltaic waterproof module can be rolled into a whole roll; folding and roll-folding can both facilitate storage, packaging and transportation, can save a large amount of packaging material, and save the cost of transportation.

No matter be the book or fold, when producing the waterproof photovoltaic assembly, can the length of the waterproof photovoltaic assembly of as far as possible increase, can roll over on length direction or folding waterproof photovoltaic assembly to when using the waterproof photovoltaic assembly, can reduce the ascending concatenation of length direction, reduce the seam in the work progress, reinforcing waterproof ability. For example:

in one example, after leaving the factory, a piece of photovoltaic waterproof assembly is folded into multiple layers along the length direction, and the crease extends along the width direction; alternatively, a roll of photovoltaic modules 1 is rolled up into a cylinder, comprising a plurality of layers. When the photovoltaic waterproof assembly is used, a plurality of sections of photovoltaic waterproof assemblies with the same length as the roof are intercepted, and the photovoltaic waterproof assemblies are paved on the roof in a mode that the length direction of the photovoltaic waterproof assemblies is consistent with the length direction of the roof. At this moment, only need in the width direction of waterproof subassembly of photovoltaic, the waterproof subassembly of two sections adjacent photovoltaic splices together can. Of course, the photovoltaic waterproof module may be laid on the roof in such a manner that the length direction of the photovoltaic waterproof module coincides with the width direction of the roof, which is not limited herein.

Wherein, the flexible waterproof roll 2 can have good permeation resistance, good mechanical strength, good fracture resistance and good aging resistance, so as to increase the service life thereof, for example, the waterproof roll 2 can be a thermoplastic polyolefin waterproof roll (TPO), a polyester fiber inner reinforced polyvinyl chloride waterproof roll (PVC) or a high polymer modified asphalt waterproof roll; the transparent encapsulating sheet 11 may be glass or a flexible polymer material (e.g., polyvinylidene fluoride material or ethylene-tetrafluoroethylene copolymer material); the upper adhesive layer 12 may be an ethylene vinyl acetate copolymer material or a polyolefin material, and the lower adhesive layer 14 may be an ethylene vinyl acetate copolymer material or a polyolefin material.

In a second aspect, referring to fig. 6, the utility model also provides a photovoltaic tile, including connecting piece, heated board 4 and foretell photovoltaic waterproof component, photovoltaic waterproof component stacks at heated board 4's upper surface, and the connecting piece links together photovoltaic waterproof component and heated board 4. The photovoltaic tile can have the performances of power generation, water resistance and heat preservation, has good heat dissipation capacity, and reduces adverse effects on the power generation efficiency due to heating, so that the photovoltaic module 1 has higher power generation efficiency.

In one example, the connector may be a structural adhesive, such as a one-part silicone structural adhesive. The bonding mode can keep the structural integrity of the waterproof roll 22 and ensure good waterproof effect.

In one example, the connector may be a snap-fit connector. For example, can be provided with the draw-in groove at waterproofing membrane 2's the back, be provided with the checkpost at the upper surface of heated board 4, when photovoltaic waterproof component laid the upper surface of heated board 4, checkpost and draw-in groove correspond the joint to a photovoltaic tile has been formed. The clamping connection mode can keep the structural integrity of the waterproof roll 22 and ensure good waterproof effect.

In one example, the connector may be a fastener, such as a self-tapping screw, a bolt, etc., which penetrates the waterproofing membrane 2 to connect with the insulation board 4. At this moment, in order to guarantee waterproofing effect of waterproofing membrane 2, can also include the sealing member to avoid liquid to pass through the hole of dodging that is used for supplying the fastener to pass on waterproofing membrane 2 and enter into on heated board 4.

In a possible embodiment, as shown in fig. 6, the upper surface of the insulation board 4 may have a plurality of second heat dissipation grooves 41. This second heat dissipation recess 41 can be so that have the heat dissipation channel between the upper surface of heated board 4 and the waterproof photovoltaic module, and this heat dissipation channel is favorable to when photovoltaic module 1 generates electricity, promotes quick heat dissipation, reduces because of generating heat and to the harmful effects that generating efficiency produced.

In one example, the second heat dissipation groove 41 may be arc-shaped or polygonal. The width of the second heat dissipation groove 41 may be less than 10cm, and the depth may be less than 10cm. In addition, the shape and size of the first heat dissipation groove 21 and the second heat dissipation groove 41 may be the same or different, and are not limited herein.

In addition, as shown in fig. 7, when the first heat dissipation groove 21 and the second heat dissipation groove 41 exist at the same time, the first heat dissipation groove 21 and the second heat dissipation groove 41 can correspond to each other, and at this time, a heat dissipation channel formed between the heat insulation board 4 and the photovoltaic waterproof assembly has a large cross-sectional area, so that rapid heat dissipation is facilitated.

When the photovoltaic tile is manufactured, the photovoltaic waterproof assembly can be manufactured firstly, and then the photovoltaic waterproof assembly is installed on the heat insulation board 4 through the connecting piece. The photovoltaic tile can be a prefabricated part, prefabricated in advance in a factory, cut according to the required size on a construction site, and then spliced and installed on a roof; or can be manufactured according to the preset size of a customer and directly installed on the roof on a construction site; can improve the construction efficiency and reduce the construction cost.

Regarding the splicing of the photovoltaic tiles, a male plug structure and a female plug structure can be arranged on two opposite side surfaces of each photovoltaic tile, and when two adjacent photovoltaic tiles are spliced together, the male plug structure on one is clamped with the female plug structure on the other; or, the side of the photovoltaic tile can form a lap joint structure, two adjacent photovoltaic tiles are spliced together through the lap joint, and then the fastening pieces such as bolts are utilized to realize the fixed connection between the two photovoltaic tiles. These two kinds of modes all can be as an organic whole with a plurality of photovoltaic tile concatenations, do benefit to the roofing that forms stable in structure. The male plug structure, the female plug structure and the lap joint structure are all existing structures and are not shown in the figures.

The connecting members have various forms, which are easily realized by those skilled in the art, and are not described in detail herein or shown in the drawings.

When the heat insulation plate 4 is manufactured, the heat insulation plate 4 with the second heat dissipation groove 41 can be obtained by extruding the heat insulation plate 4 by using a die which is the same as or similar to the die 5; alternatively, the second heat dissipation groove 41 may be obtained by machining means such as cutting.

For example, the heat insulation board 4 may be a rock wool board, and the rock wool board with the second heat dissipation grooves 41 is obtained by hot press forming during manufacturing; for another example, the insulation board 4 may include two metal plates, and rock wool between the two metal plates, wherein one metal plate may be formed by hot pressing and then has the second heat dissipation groove 41.

In a third aspect, the utility model also provides a building roof, including the above-mentioned photovoltaic waterproof assembly; or, comprise the photovoltaic tile described above. The building roof can have the functions of power generation and water prevention, the heat dissipation structure is favorable for reducing adverse effects on power generation efficiency due to heating, the photovoltaic module 1 has high power generation efficiency, the building energy can be effectively reduced, low-carbon and zero-carbon buildings are vigorously developed, and the building roof has important practical significance on energy conservation, emission reduction and environment protection.

In a fourth aspect, based on the above description, under the same inventive concept, the present invention further provides a building roof, which includes a photovoltaic module 1, a waterproof roll 2 and a bearing plate stacked together in sequence from top to bottom, wherein a heat dissipation structure is arranged between the waterproof roll 2 and the bearing plate; the photovoltaic module 1 comprises a transparent packaging plate 11, an upper adhesive layer 12, a cell sheet 13 and a lower adhesive layer 14 which are sequentially stacked together from top to bottom, wherein the upper adhesive layer 12 bonds the transparent packaging plate 11 and the cell sheet 13 together, and the lower adhesive layer 14 bonds the cell sheet 13 and the waterproof roll 2 together; or, the photovoltaic module 1 comprises a transparent packaging plate 11, an upper adhesive layer 12, a cell sheet 13, a lower adhesive layer 14 and a back plate which are sequentially stacked together from top to bottom, the upper adhesive layer 12 bonds the transparent packaging plate 11 and the cell sheet 13 together, the lower adhesive layer 14 bonds the cell sheet 13 and the back plate together, and the back plate is connected with the waterproof roll 2.

Under the condition of adopting this technical scheme, heat radiation structure is favorable to promoting quick heat dissipation when photovoltaic module 1 generates electricity, reduces because of generating heat and to the harmful effects that generating efficiency produced. Therefore, the building roof can have the functions of power generation and water prevention, has a good heat dissipation effect and high power generation efficiency, can effectively reduce energy for buildings, vigorously develops low-carbon and zero-carbon buildings, and has important practical significance for energy conservation, emission reduction and environment protection.

In one example, when the photovoltaic module 1 includes a back sheet, the photovoltaic module 1 having the back sheet may be obtained first, then the photovoltaic module 1 having the back sheet is connected to the waterproofing membrane 2 by an adhesive, a fastener or a clamping member, and then the connected photovoltaic module 1 and the waterproofing membrane 2 are mounted together on the carrier plate to obtain a prefabricated member; and when needed, the building can be directly used, so that the building construction steps can be simplified.

In one example, when the photovoltaic module 1 comprises a backsheet, the photovoltaic module 1 and the waterproofing membrane 2 can be joined together first to obtain a preform (corresponding to the photovoltaic waterproofing module described above); or the waterproof coiled material 2 and the bearing plate can be connected together to obtain a prefabricated member, and the prefabricated member is not provided with the photovoltaic module 1, can bear larger extrusion and collision and is convenient to transport; and then sequentially arranging the components on the roof.

In one example, when the photovoltaic module 1 comprises a back sheet, the carrier sheet may be laid on the roof first, then the waterproofing roll 2 is laid on the carrier sheet, and then the photovoltaic module 1 is laid on the waterproofing roll 2. That is, the three can be purchased separately and laid in turn at the construction site.

In an example, when the photovoltaic module 1 does not comprise a back sheet, the photovoltaic module 1 and the waterproofing membrane 2 can be joined together by means of hot pressing to obtain a prefabricated member (corresponding to the above-mentioned photovoltaic waterproofing module), and then the prefabricated member and the bearing plate are laid on the roof in sequence at the time of construction; alternatively, the photovoltaic module 1, the waterproofing membrane 2 and the carrier board can be joined together or prefabricated in advance, and used directly when needed, which can simplify the building steps of the building.

In one example, the carrier plate can be the above-mentioned heat insulation plate 4, and the waterproof roll 2 can be connected with the carrier plate by structural adhesive, fasteners or fasteners.

In a possible implementation manner, the heat dissipation structure includes at least one of a plurality of first heat dissipation grooves 21 located on the lower surface of the waterproof roll 2, a heat-conducting metal piece disposed on the waterproof roll 2, and a plurality of third heat dissipation grooves located on the upper surface of the loading plate. Wherein, first heat dissipation recess 21 and third heat dissipation recess all can be so that form the heat dissipation passageway between waterproofing membrane 2 and the loading board, are favorable to dispelling the heat fast. The heat conducting metal piece has good heat conducting performance and is beneficial to quick heat dissipation.

Here, the first heat dissipation groove 21 and the heat conductive metal member may refer to the above description, and are not described herein again. The third heat dissipation groove on the carrier plate has the same function as the second heat dissipation groove 41, and may have the same shape as the second heat dissipation groove 41, which is not described herein again.

When only the first heat dissipation groove 21 is included, the specific structure of the building roof provided by the present invention can be understood with reference to fig. 6.

When the first heat dissipation groove 21 and the third heat dissipation groove are included at the same time, the specific structure of the building roof provided by the present invention can be understood with reference to fig. 7.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. The photovoltaic waterproof assembly is characterized by comprising a photovoltaic assembly and a waterproof coiled material, wherein the photovoltaic assembly is laid on the upper surface of the waterproof coiled material, and the waterproof coiled material is provided with a heat dissipation structure;

the photovoltaic module comprises a transparent packaging plate, an upper adhesive layer, a battery piece and a lower adhesive layer, wherein the transparent packaging plate, the upper adhesive layer, the battery piece, the lower adhesive layer and the waterproof coiled material are sequentially stacked from top to bottom;

the upper glue layer bonds the transparent packaging plate and the battery piece together, and the lower glue layer bonds the battery piece and the waterproof coiled material together.

2. The photovoltaic flashing assembly of claim 1, wherein the heat-dissipating structure comprises a plurality of first heat-dissipating grooves on a lower surface of the flashing roll and/or a thermally conductive metal disposed on the flashing roll.

3. The waterproof photovoltaic module according to claim 1, wherein the number of the photovoltaic modules is plural and the photovoltaic modules are arranged at intervals, and in at least one arrangement direction of the plurality of the photovoltaic modules, a gap between any two adjacent photovoltaic modules is larger than or equal to the sum of thicknesses of the two photovoltaic modules.

4. A photovoltaic tile comprising a connector, a thermal insulation board and the waterproof photovoltaic module of any one of claims 1 to 3, wherein the waterproof photovoltaic module is stacked on the upper surface of the thermal insulation board, and the connector connects the waterproof roll and the thermal insulation board together.

5. The photovoltaic tile of claim 4 wherein the upper surface of the insulation board has a plurality of second heat sink grooves.

6. The photovoltaic tile of claim 4 wherein said connecting means is a structural adhesive, fastener or snap-fit.

7. A building roof comprising a photovoltaic flashing assembly as defined in any one of claims 1 to 3; or, comprising a photovoltaic tile as claimed in any one of the preceding claims 4 to 6.

8. A building roof is characterized by comprising a photovoltaic module, a waterproof coiled material and a bearing plate which are sequentially stacked together from top to bottom, wherein a heat dissipation structure is arranged between the waterproof coiled material and the bearing plate;

the photovoltaic module comprises a transparent packaging plate, an upper adhesive layer, a cell piece and a lower adhesive layer which are sequentially stacked together from top to bottom, wherein the upper adhesive layer bonds the transparent packaging plate and the cell piece together, and the lower adhesive layer bonds the cell piece and the waterproof coiled material together;

or, photovoltaic module is including stacking transparent packaging board, rubberizing layer, battery piece, lower glue film and the backplate together from top to bottom in proper order, go up the glue film will transparent packaging board with the battery piece bonds together, down the glue film will the battery piece with the backplate bonds together, the backplate with waterproofing membrane connects.

9. The building roof according to claim 8, wherein the heat dissipation structure comprises at least one of a plurality of first heat dissipation grooves on a lower surface of the waterproof roll, a heat conductive metal member provided on the waterproof roll, and a plurality of third heat dissipation grooves on an upper surface of the loading plate.

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