WO2013127157A1

WO2013127157A1 - Photovoltaic heat pipe cell component module

Info

Publication number: WO2013127157A1
Application number: PCT/CN2012/079542
Authority: WO
Inventors: 余晓东
Original assignee: 安徽长远绿色能源有限公司
Priority date: 2012-03-01
Filing date: 2012-08-02
Publication date: 2013-09-06
Also published as: CN102593218B; CN102593218A

Abstract

A photovoltaic heat pipe cell component module comprising a photovoltaic component consisting of a photovoltaic plate (5), connectors (6, 29), and junction boxes (13, 16), the lower layer of the photovoltaic plate (5) being, in order, a solar energy heat collecting tube (30), a cell core layer (26), and a back plate (20), connected to one another by a thermal bonding film (25), and all together forming the main body structure of the component module; disposed along the circumference of the main body structure of the component module is an aluminum alloy frame (7); the connectors (6, 29) are a positive connector (6) and a negative connector (29); disposed on either end of the solar energy heat collecting tube (30) are an inlet interface (33) and an outlet interface (32), each disposed at one end of the component module; the junction boxes (13, 16) are disposed in the cell core layer (26). The problem of peeling and detaching of photovoltaic components and material, and diode heat dissipation inside of a junction box are better solved. The module has a standardized design, is highly integral, easy to install, and relatively low in manufacturing cost.

Description

Photovoltaic heat pipe honeycomb module

This application claims priority to Chinese Patent Application No. 201210051481.X, entitled "A Photovoltaic Heat Pipe Honeycomb Module Module", filed on March 1, 2012, the entire contents of which is incorporated herein by reference. In the application.

Technical field

The present invention relates to a novel photovoltaic building material, and in particular to a photovoltaic heat pipe honeycomb component module which can be used for both solar power generation and heat recovery, and can also be used as a building material for a building top or wall.

Background technique

Due to the energy crisis and the need for sustainable development, photovoltaic power generation, especially photovoltaic building integration, is one of the important technical means. The optimized combination of photovoltaics and buildings has a broad market, and photovoltaic cellular components will be an important choice. In the prior art solar photovoltaic cells, the photovoltaic panels are laid on the top layer of the building by using a fixed frame, and the photovoltaic panels are connected by cables. The installation method is high in cost and complicated in installation. The honeycomb panels in the prior art are mainly used in the construction field and have a single function.

Solar energy is abundant and widely distributed, and it is the renewable energy with the most development potential. With the global energy shortage and environmental pollution becoming more and more prominent, solar photovoltaic power generation has become an emerging industry with universal attention and key development in the world because of its clean, safe, convenient and efficient characteristics. Current building photovoltaic technology and solar hot water technology build and mount brackets based on the roof of a building, destroying buildings and causing excessive system cost.

Chinese patent CN201605712 U discloses a solar honeycomb panel, comprising: an upper aluminum alloy panel, a first adhesive layer, an aluminum honeycomb core, a second adhesive layer, a lower aluminum alloy panel; and a solar panel is also disposed on the upper aluminum alloy panel a third adhesive layer is disposed between the solar panel and the upper aluminum alloy panel; a socket port is disposed at one end of the solar panel, and a plug port, a socket port, and a plug port corresponding to the socket port are disposed at the other end It is installed between the upper aluminum alloy panel and the lower aluminum alloy panel, and is respectively connected with a wire and a solar panel. Multiple solar panels are assembled together, interconnected by a socket port and a plug port for installation on a roof, balcony or wall. The technical solution of this patent is only a combination of the finished photovoltaic module and the finished aluminum honeycomb panel, which has the following disadvantages: In the application, the aluminum honeycomb panel will have the problem of material peeling off, and a thick photovoltaic module will be bonded on the surface. The problem of peeling off the photovoltaic module and material will be more serious, and its safety cannot be guaranteed in engineering applications. Bonded building materials are no longer allowed on the wall; Secondly; the junction box of the PV module and its bypass protection diode are essential components, usually bonded to the back of the PV module, and the structure according to the above patents will only The junction box and the bypass diode are placed on the external processing of the solar honeycomb panel, which has the lack of integrity of the solar honeycomb panel; if it is to be placed in the solar honeycomb panel, there is a problem of heat dissipation of the diode in the junction box; Third: the patent "The solar panel is placed on the upper aluminum alloy panel, and there is a third adhesive layer between the solar panel and the upper aluminum alloy panel." The upper aluminum alloy panel is the most expensive material in the aluminum honeycomb panel, and this combination not only produces materials. Stripping off problems, and directly lead to increased costs; Fourth: Can not be used for heating. Summary of the invention

In view of the above problems in the prior art, an object of the present invention is to provide a photovoltaic heat pipe honeycomb component module which integrates the advantages of photovoltaic cells and heat extraction technology, and also has all the performance characteristics of the aluminum honeycomb panel, and It solves the problems of PV module and material peeling off and diode heat dissipation in the junction box. Its standard module structure design is strong, easy to install and relatively low in cost.

The technical solution adopted by the present invention for achieving the purpose thereof: a photovoltaic heat pipe honeycomb component module, comprising a photovoltaic component composed of a photovoltaic panel, a connector and a junction box, wherein the lower layer of the photovoltaic panel is a solar heat collecting tube and a honeycomb core layer And a backing plate, which is bonded to each other by a hot melt adhesive film to form a main structure of the module; the main structure of the component module is provided with an aluminum alloy frame; the connector is a positive connector and a negative connector, the solar energy The two ports of the heat collecting tube are provided with an inlet joint and an outlet joint, which are respectively disposed on two sides of the module; the junction box is built in the honeycomb core layer.

Two layers of hot melt adhesive film are disposed between the solar heat collecting tube and the honeycomb core layer, and an heat absorbing film is disposed between the two layers of hot melt adhesive film.

The honeycomb core layer is an interconnected aluminum hexagonal honeycomb, which is integrally distributed on the back plate, and the honeycomb inner cavity is evacuated; the back plate is an aluminum back plate or a stainless steel back plate.

The junction box includes a junction box inner casing and a junction box outer casing, and the junction box inner side is provided with heat dissipation a heat dissipation surface of the bypass diode in the junction box protrudes from the junction box through the heat dissipation window and is placed on the aluminum alloy frame.

The upper part of the aluminum alloy frame is provided with upper and lower groove plates along the long direction thereof, and the two form a photovoltaic plate installation groove. The photovoltaic plate installation groove is connected to the reinforcement plate, and the area of the lower groove plate and the reinforcement plate is a honeycomb. a core board assembly area; the lower end of the reinforcing board is provided with an inner layer sealant filling board along a longitudinal direction thereof.

The opposite ends of the reinforcing plate and the photovoltaic plate mounting groove are provided with an aluminum plate groove and an outer sealing groove along the longitudinal direction thereof.

The reinforcing plate is provided with a frame screw mounting hole; the surface of the inner layer sealant filling plate and the outer layer sealing groove is a napped structure.

It can be seen from the above technical solutions: The present invention is a novel cogeneration building material which has the technical advantages of photovoltaic power generation and solar heat utilization, and also has all the performance characteristics of aluminum honeycomb panels. This combination of technologies also better solves the technical defects of high cost and complicated installation of photovoltaic modules and solar collector tubes and aluminum honeycomb panels, so that the efficiency of photovoltaic power generation is increased from about 15% to the basic utilization of solar energy. Since the aluminum panel with the highest cost of aluminum honeycomb panels is replaced by photovoltaic modules, the cost of aluminum honeycomb panels is reduced. The solar collector tube is packaged in the middle of the photovoltaic module and the aluminum honeycomb panel, making full use of the heating function of the photovoltaic module and the heat preservation function of the back aluminum honeycomb panel, achieving the optimal combination of the three. The solar energy collecting tube absorbs the heat of the photovoltaic module and the light energy transmitted through the photovoltaic module, thereby effectively reducing the temperature of the photovoltaic module and improving the working efficiency of the photovoltaic module, and also enhancing the reliability of the photovoltaic module. Based on the special junction box and aluminum alloy frame mounting and fixing technology designed for the photovoltaic heat pipe honeycomb component, the heat dissipation problem of the bypass diode built in the junction box and the problem that the core layer of the aluminum honeycomb panel is easily peeled off and waterproof sealed are solved. The new photovoltaic hot water honeycomb module structure based on aluminum honeycomb panel has the functions of heat preservation, energy saving, light fire prevention, noise reduction, high strength, corrosion resistance, no light pollution, good flatness, green power generation and light and heat water supply. The standard modular combination technology greatly reduces the material and labor costs of system installation, and truly realizes the building integration of photovoltaic power generation and solar thermal utilization. DRAWINGS

The invention will be further described in detail below with reference to the drawings and specific embodiments. Figure 1 is a schematic cross-sectional view of the present invention;

2 is a schematic view showing the structure of a front view of the present invention;

Figure 3 is a schematic cross-sectional view of Figure 2;

Figure 4 is a schematic side view of the present invention;

Figure 5 is a schematic view showing the arrangement of the structure in the junction box of the present invention;

Figure 6 is a cross-sectional structural view showing the assembly position of the wire box according to the present invention;

Figure 7 is a cross-sectional view of the aluminum alloy frame of the present invention;

8 is a schematic cross-sectional structural view of a connection state between two modules of the present invention;

FIG. 9 is a schematic front view showing the connection state between two modules of the present invention.

In the figure: 1. Photovoltaic panel mounting groove, 2. Outer sealant tank, 3. Aluminum plate mounting groove, 4. Inner layer sealant filling area, 5. Photovoltaic panel, 6. Positive connector, 7. Aluminum alloy frame, 8, aluminum plate, 9, outer sealant, 10, inner sealant, 11, keel, 12, mounting hole, 13, junction box shell, 14, buckle, 15, heat dissipation window, 16, junction box inner shell, 17, frame screw mounting hole, 18, metal connecting piece, 19, diode, 20, back aluminum plate, 21, photovoltaic cell tape threading hole, 22, photovoltaic module tape connection end, 23, mounting hole, 24, photovoltaic module cable Connection end, 25, hot melt film, 26, aluminum honeycomb core, 28, building surface, 29, negative connector, 30, solar collector tube, 31 heat absorption film, 32, heat pipe outlet joint, 33, heat collecting tube Imported joints, 34, stiffeners, 35, inner sealant filler panels, 36, honeycomb core panel assembly area.

detailed description

As shown in FIG. 1-4, the photovoltaic module comprises a photovoltaic panel 5, a connector and a junction box. The lower layer of the photovoltaic panel 5 is a solar collector tube 30, an aluminum honeycomb core 26 and a back aluminum plate 20 (also a stainless steel plate). The main structure of the module module is formed by bonding the hot melt film 25 to each other; the aluminum alloy frame 7 is disposed around the main structure of the module module; and the aluminum alloy frame 7 is provided with a mounting hole 12. The connector is a positive connector 6 and a negative connector 29, and the two ends of the solar collector 30 are provided with a heat collecting tube outlet joint 32 and a heat collecting tube inlet joint 33, which are respectively disposed on both sides of the module; the junction box is built in the honeycomb core layer. Medium.

Two layers of hot melt film 25 are disposed between the solar collector tube 30 and the aluminum honeycomb core, and an endothermic film 31 is disposed between the two layers of hot melt film. The aluminum honeycomb core is an interconnected aluminum hexagonal honeycomb, which is integrally distributed on the back aluminum plate 20, and the honeycomb cavity is evacuated.

As shown in Fig. 5-6, the junction box includes a junction box inner casing 16 and a junction box casing 13 , and a heat dissipation window 15 is disposed on a side of the inner casing of the junction box; the two are connected by a buckle 14 to form a junction box body. There are 4 metal connecting pieces and 3 diodes 19 in the inner casing of the junction box (the number of metal connecting pieces and diodes is determined according to actual needs), and the diode 19 is bridged between two adjacent metal connecting pieces and is metal. The photovoltaic component tape connection end 22 on the connecting piece 18 is connected to the photovoltaic cell tape guide penetrating from the photovoltaic cell tape looping hole 21; the heat dissipation window 15 is provided on the side of the inner side of the junction box. The bypass diode 19 in the junction box protrudes from the junction box through the heat dissipation window and is placed on the aluminum alloy frame.

As shown in Figure 7-9, the upper part of the aluminum alloy frame 7 is provided with a slot plate and a lower slot plate along its long direction, which constitute a photovoltaic panel mounting slot 1 , and the photovoltaic panel mounting slot 1 is connected to the reinforcing plate 34 and the lower slot plate. The area formed with the reinforcing plate is the honeycomb core board assembly area 36; the lower end of the reinforcing plate 34 is provided with an inner layer of sealant filling plate 35, and the upper portion thereof constitutes an inner layer of sealant filling area 4. The aluminum plate mounting groove 3 and the outer sealing groove 2 are arranged at the opposite ends of the reinforcing plate end and the photovoltaic panel mounting groove. The reinforcing plate is provided with a frame screw mounting hole 17, and the surface of the inner sealant filling plate 35 and the outer sealant groove 2 is a napped structure.

The main structure of the module module is fixed in the aluminum alloy frame 7 to form a standard module. There are a positive connector 6 and a negative connector 29 on each side of the module, and the positive connector 6 and the negative connector 29 between the adjacent modules can be directly locked and locked. Processing of module connection gap: The inner layer sealant 10 is used, and the middle insert aluminum plate 8 is isolated and protected, and the outer layer sealant 9 is used. Waterproof treatment of the gap between adjacent modules, the inner layer is coated with a sealant, a thin aluminum sheet is inserted in the middle, and the outer layer is again coated with glue. The thin aluminum sheet in the middle isolates the ultraviolet rays from the sun to damage the inner sealant, protects the sealant and the electrical connector from various adverse effects of environmental factors, and is neat and tidy in appearance. The surface of the thin aluminum sheet can be coated with a transparent or other color of glue to form a surface protective layer of the thin aluminum sheet. All the rubberized surfaces of the aluminum alloy frame are processed into a fine jagged shape, which increases the contact surface between the glue and the aluminum alloy frame, and strengthens the bonding effect. The solar heat collecting tube of the invention adopts a pipeline material having a certain strength and a certain pressure resistance capability. Because of the temperature difference between the medium inside the tube and the medium outside the tube, the heat can be transmitted through the wall of the pipe to realize the purpose of exchanging heat between the medium inside and outside the pipe, and the heat conduction. The principle application is called heat pipe technology. Photovoltaic heat pipe honeycomb components utilize heat pipe technology to achieve relatively high heat transfer efficiency and flexible heat collection design. The heat pipe medium of the photovoltaic heat pipe honeycomb component is a non-corrosive and environmentally-friendly high-boiling liquid, and the pipeline is not subjected to high pressure due to high-temperature vaporization of the liquid, so the reliability is extremely high. The heat pipe medium is sealed and circulated inside the pipeline, and the capacity is small, and even if it leaks, it will not cause a serious accident. The heat pipe of the photovoltaic heat pipe honeycomb component is connected with the radiator, and can be applied to hot water supply, indoor heating, and the like.

Aluminum honeycomb core board is the application of aviation and aerospace materials in the field of civil construction. It is a new building material with green, environmental protection and energy saving. Aluminum honeycomb panels have been widely used in building curtain walls, roofs and interior wall decoration due to their advantages of light weight, fire resistance, noise reduction, high strength and high rigidity. Although aluminum honeycomb panels have many advantages, the high cost is an important obstacle to their promotion and application; in engineering applications, the adhesion of aluminum panels and aluminum honeycomb cores is easy to peel off, which is also a problem that cannot be ignored. However, the combination of the present invention makes it practically valuable.

The present invention is a standard modular structure design in which the junction box is built into the core of the assembly without any protruding features on the outside. The electrical and heat pipe installations are designed with a standard modular combination of components, with positive and negative connectors and heat pipe connectors for the dedicated PV modules on both sides of the assembly. System installation requires only the PV heat pipe honeycomb components to be aligned and fixed, without the need for cables and tubing to be connected in the field.

The surface of the invention is a polyvinyl fluoride composite film on the back side of the photovoltaic panel, TPT is a transparent film, and the hot melt adhesive film is polyethylene-ethyl acetate EVA. The endothermic film is hardened. The layers are bonded to each other by vacuum and high temperature and high pressure composite bonding, and assembled in a special aluminum alloy frame. The interconnected aluminum honeycomb core is like a myriad of I-beams. The core layer is fixed in the entire surface of the board, which makes the plate have a very high strength structure, flatness and good thermal insulation properties. The special aluminum alloy frame solves the problem of material peeling off.

The waterproof treatment of the gap between the photovoltaic heat pipe honeycomb components, the inner layer is coated with a sealant, a thin aluminum piece is inserted in the middle, and the outer layer is again coated with glue. The thin aluminum sheet in the middle isolates the ultraviolet rays from the sun to damage the inner sealant, protects the sealant and the electrical connector and the heat pipe connector from various adverse effects of environmental factors, and is neat and tidy in appearance. The surface of the thin aluminum sheet can be painted transparent or other colors Colored glue to form a surface protection layer of a thin aluminum plate. All the rubberized surfaces of the aluminum alloy frame are processed into a fine jagged shape, which increases the contact surface between the glue and the aluminum alloy frame, and strengthens the bonding effect. Since the collector pipe joints are all encapsulated in the sealant, the problem of pipeline leakage is completely solved.

The aluminum alloy frame structure is designed for specific purpose, and the frame is mounted on the keel and directly fixed to the surface of the building. The combination of photovoltaic heat pipe honeycomb components and aluminum honeycomb panels uses aluminum honeycomb panels to fill the parts of the photovoltaic heat pipe honeycomb components that cannot be covered, and directly replaces the insulation and decorative materials of the roof and exterior walls of the building.

The electrical junction box is built into the inner layer of the module, one side bonded to the back of the photovoltaic panel and the other side fixed to the aluminum frame. The heat dissipation surface of the bypass protection diode in the junction box is in direct contact with the aluminum foil on the back side of the aluminum alloy frame. This installation method utilizes the aluminum alloy frame of the photovoltaic heat pipe honeycomb component, which solves the heat dissipation problem of the built-in bypass diode of the junction box.

The invention can be flexibly combined and used in construction, and is a highly reliable green cogeneration and construction insulation decoration material.

Claims

Rights request

A photovoltaic heat pipe honeycomb module, comprising a photovoltaic module comprising a photovoltaic panel, a connector and a junction box, wherein: the lower layer of the photovoltaic panel is a solar collector tube, a honeycomb core layer and a back sheet, respectively The main structure of the component module is formed by bonding the hot melt adhesive film; the aluminum alloy frame is disposed around the main structure of the component module; the connector is a positive electrode connector and a negative electrode connector, and the solar heat collecting tube is provided with two ports for importing A joint and an outlet joint are respectively disposed on both sides of the module; the junction box is built in the honeycomb core layer.

2. The photovoltaic heat pipe honeycomb module according to claim 1, wherein: two layers of hot melt film are disposed between the solar heat collecting tube and the honeycomb core layer, and an heat absorbing film is disposed between the two layers of hot melt film.

The photovoltaic heat pipe honeycomb module according to claim 1, wherein: the honeycomb core layer is an interconnected aluminum hexagonal honeycomb, which is integrally distributed on the back plate, and the honeycomb cavity is evacuated; The back plate is an aluminum back plate or a stainless steel back plate.

The photovoltaic heat pipe honeycomb module according to claim 1, wherein: the junction box comprises a junction box inner casing and a junction box outer casing, and a heat dissipation window is disposed on a side of the inner casing of the junction box; The bypass diode heat dissipation surface protrudes from the junction box through the heat dissipation window and is placed on the aluminum alloy frame.

The photovoltaic heat pipe honeycomb module according to claim 1, wherein: the upper portion of the aluminum alloy frame is provided with upper and lower groove plates along a longitudinal direction thereof, and the two constitute a photovoltaic plate installation groove, and the photovoltaic plate installation groove Connected to the reinforcing plate, the area formed by the lower groove plate and the reinforcing plate is a honeycomb core board assembly area; the lower end of the reinforcing plate is provided with an inner layer sealant filling plate along the long direction thereof.

6. The photovoltaic heat pipe honeycomb module according to claim 5, wherein: the reinforcing plate end portion and the photovoltaic plate mounting groove are oppositely disposed with an aluminum plate groove and an outer sealant groove along a longitudinal direction thereof.

The photovoltaic heat pipe honeycomb module according to claim 5, wherein: the reinforcing plate is provided with a frame screw mounting hole; and the surface of the inner layer sealant filling plate is a brushed structure.

8. The photovoltaic heat pipe honeycomb module according to claim 6, wherein: the surface of the outer sealant groove is a napped structure.