WO2014176881A1

WO2014176881A1 - Tubular concentrating photovoltaic cell assembly

Info

Publication number: WO2014176881A1
Application number: PCT/CN2013/085688
Authority: WO
Inventors: 刘庆云
Original assignee: Liu Qingyun
Priority date: 2013-04-28
Filing date: 2013-10-22
Publication date: 2014-11-06
Also published as: CN103456823A; CN103456823B

Abstract

A tubular concentrating photovoltaic assembly, comprising a glass tube (101), at least one group of concentrating optical system (103) correspondingly arranged in the glass tube (101) and a photovoltaic cell array, is characterized in that the photovoltaic cell array includes a plurality of photovoltaic cell array units in array arrangement, wherein the photovoltaic cell array units include at least one photovoltaic cell (104) and a thermal diffusion structure (106) arranged at the back of the photovoltaic cells (104), the thermal diffusion structure (106) and the back of the photovoltaic cell (104) are in heat conduction contact and the thermal diffusion structure (106) is tightly contacted with the inner wall of the glass tube, heat of the photovoltaic cell array units are diffused to the glass tube wall with a large area and is transmitted to the environment outside the glass tube (101) by the glass tube wall; and the concentrating optical systems (103) reflect sunlight to the surfaces of the photovoltaic cell (104). The tubular concentrating photovoltaic cell assembly can track the sun in real time, the condensation multiple is high, the assembly with the low cost can be manufactured simply, and the assembly is suitable for large-scale arrangement of various occasions.

Description

Tubular concentrating photovoltaic cell assembly

Technical field

The present invention relates to a tubular photovoltaic cell module, and more particularly to a photovoltaic cell module that reduces cost, improves service life, and generates power by multi-concentration, reliable packaging, and high heat dissipation. Background technique

Among many power generation methods, solar photovoltaic power generation is one of the most technologically advanced and promising ways of new energy and renewable energy. Currently, market-oriented flat-panel solar photovoltaic modules are made of glass, photovoltaic cells, wires, wiring devices, A combination of bonding materials and the like forms a unitary structure that converts light energy into electrical energy under the illumination of sunlight. However, the flat-panel solar photovoltaic cell module adopts a direct sunlight illumination method, and since the normal illumination power density is low, the number of required component batteries is large, and the unit power cost of the electric energy conversion is high; in view of this, in order to use Concentrating Photovoltaic-CPV is developed by less battery power, for example, a solar concentrating photovoltaic system in the prior art is: Fresnel arranged through the upper part of the battery unit The mirror concentrates the incident sunlight on a small-area battery unit with a concentrating magnification of 20 times or more, thereby reducing the battery usage and reducing the cost; however, the illumination intensity increases due to the condensing magnification, and the temperature of the battery unit It will rise sharply, which in turn will reduce the efficiency of power conversion, and these concentrating optical systems are usually costly and complicated to operate, which affects the promotion of CPV technology.

Conventional photovoltaic cell modules are fabricated using a lamination (pressurization and vacuuming) process. The bonding material, such as polyethylene-vinyl acetate (EVA), is melted by a laminator under a certain temperature, pressure and time, and then solidified, so that other materials such as glass, cell sheets and back film are integrated. In addition, the processing of the frame is completed. However, this manufacturing method has some drawbacks: (1) Since the battery sheet is thin, the battery sheet is easily broken during the lamination process, and if the size of the photovoltaic cell module is large, the bonding material during lamination is melted. Bubbles are also difficult to discharge, resulting in low yield. (2) The packaging process is complicated and takes a long time. (3) The lamination process cannot produce curved-shaped photovoltaic cell modules, which cannot meet the requirements of special parts in buildings. (4) The packaging process has high labor and energy costs. (5) After the long-term illumination, the bonding material used in the laminating process is prone to discoloration and the like, so that the incident rate of sunlight becomes small, which seriously affects the power conversion efficiency, and the replacement period of the photovoltaic cell is correspondingly shortened. (6) In addition to the battery sheet, the cost of raw materials such as cover glass, back film, and frame is difficult to further compress, and the cost of module reduction is limited. (7) The chip-shaped module is greatly affected by the wind, the self-supporting ability is limited, and more bracket steel is needed. Line reinforcement installation, resulting in increased system costs.

Therefore, how to obtain a photovoltaic cell module manufacturing method with low cost, high reliability, high power conversion efficiency and long service life has become one of the concerns of the industry. Summary of the invention

It is an object of the present invention to provide a tubular concentrating photovoltaic module (also referred to as a tubular concentrating photovoltaic cell assembly) that overcomes the above-discussed technical problems.

A tubular concentrating photovoltaic module provided by the present invention comprises a glass tube, a concentrating optical system disposed in the glass tube, and a photovoltaic cell array, wherein the photovoltaic cell array comprises a plurality of arrays of photovoltaic cell array units, wherein the photovoltaic The battery array unit comprises at least one photovoltaic cell and a thermal diffusion structure, the thermal diffusion structure is in thermal contact with the back of the photovoltaic cell, and is arranged close to the inner wall of the glass tube to diffuse heat of the photovoltaic cell array unit to a larger area of the glass tube wall Above, the heat is transferred to the outside of the glass tube through the glass tube wall.

Further, the thermal diffusion structure is disposed on a portion of the tube wall that has little or no influence on the incident light transmitted through the glass tube; for example, the thermal diffusion structure is disposed on the side wall and the bottom tube wall of the glass tube in contact with the incident direction of the light. Partial region; The thermal diffusion structure can conduct heat to a large area of the glass tube wall with low thermal resistance while ensuring less influence on the shading of the collecting optical system.

Further, the thermal diffusion structure is made of aluminum, copper or iron or a combination of two or three of them; the thermal diffusion structure is in good thermal contact with the back of the photovoltaic cell, and the heat generated by the photovoltaic cell is low in thermal resistance ( Or low temperature difference) to spread to a larger area to enhance heat dissipation, thereby reducing the battery temperature, to avoid a significant drop in the photoelectric conversion efficiency caused by excessive temperature rise of the photovoltaic cell due to light irradiation.

Further, in the photovoltaic cell array unit, at least one photovoltaic cell is disposed on the thermal diffusion structure; the photovoltaic cell and the thermal diffusion structure are fixed by adhesive or welding to form a complete photovoltaic cell array unit.

Further, the photovoltaic cell array unit is fixed to an inner wall surface of the glass tube by an adhesive.

Further, the thermal diffusion structure is bonded to the inner wall of the glass tube with an adhesive.

Further, the binder is a photocurable adhesive, such as a photocurable adhesive, an ultraviolet adhesive, or the like, to facilitate assembly and good anti-aging properties in a sunlight environment.

Further, the thermal diffusion structure in the plurality of photovoltaic cell array units is electrically connected directly or misaligned with the photovoltaic cells to realize series, parallel or series-parallel connection of the photovoltaic cells.

Further, the photovoltaic cell is a single crystal silicon cell, a polycrystalline silicon cell or a thin film photovoltaic cell. Preferably, the photovoltaic cell is a single crystal silicon cell, which is low in cost and high in efficiency.

Further, the concentrating optical system is a reflective concentrating optical system or a transmissive concentrating optical system. Further, the concentrating optical system optically corrects the design based on the refraction that occurs when light passes through the wall of the glass tube, so that the solar ray eventually concentrates better on the surface of the photovoltaic cell array.

Further, the inside of the glass tube is a closed space, which can effectively block the intrusion of gas, dust and moisture which are harmful to the photovoltaic cell, thereby improving the efficiency and the service life of the photovoltaic cell.

Further, the enclosed space inside the glass tube is in a vacuum state to maximize the service life and use efficiency of the photovoltaic cell.

Further, the enclosed space fills a gas that is harmless to the photovoltaic cell to extend the service life of the photovoltaic cell and reduce the cost.

Further, the enclosed space is filled with a transparent liquid that is harmless to the photovoltaic cell to enhance heat dissipation, prolong the service life of the photovoltaic cell, and reduce cost.

Further, the reflective surface of the reflective concentrating optical system is a front reflective structure having a highly reflective layer on the reflective surface and no organic protective coating on the surface of the highly reflective layer.

Further, the surface of the photovoltaic cell directly receives the concentrated light without increasing the protective coating.

Further, the tubular concentrating photovoltaic module outlet or a part of the internal battery is arranged with continuous or spaced diodes at both ends to reduce the influence of the photovoltaic power array on the electrical power output caused by the destruction of a part of the photovoltaic cells or the shadow of the external structure.

Further, the tubular concentrating photovoltaic cell assembly is rotated about a central axis of rotation parallel to the central axis of the glass tube to achieve incident solar ray tracing.

Further, a plurality of said tubular concentrating photovoltaic cell assemblies are integrally rotated about a central axis of rotation parallel to the central axis of the glass tube.

Further, a plurality of said tubular concentrating photovoltaic module arrays are arranged in parallel and rotated about a common or respective central axis of rotation.

The present invention also provides an array of tubular concentrating photovoltaic modules formed by a plurality of arrays of tubular concentrating photovoltaic modules as described above, the plurality of tubular concentrating photovoltaic modules being rotated about a common or respective central axis of rotation.

Further, a plurality of tubular concentrating photovoltaic modules in the array of tubular concentrating photovoltaic modules are arranged at an oblique angle at the same tilt angle, rotating about a common or respective central axis of rotation.

The structural design of the tubular concentrating photovoltaic module of the present invention has the following advantages over the existing photovoltaic technology: (1) The manufacturing method is simple, overcomes the problems of high cost, long time consumption and crushing of the cell sheet in the complicated process and manufacturing of the conventional flat photovoltaic cell press-molding package; (2) Reflective collecting optical system in the tubular concentrating photovoltaic cell module The high-reflection layer of the mirror surface does not need to increase the protective coating of the organic material, which reduces the protection cost. In the long-term use, it will not cause the reflectivity to decline due to the decrease of the light transmittance of the coating; (3) The use of concentrating light, compared with the flat photovoltaic cell A smaller number of photovoltaic cells reduce the installation cost of photovoltaic cells; (4) Good thermal structure of photovoltaic cells, while ensuring the heat dissipation of photovoltaic cells while the structure is very simple and extremely low cost; (5) Supporting tubular structure, high strength, easy to collect and trace, can complete one-dimensional tracking of photovoltaic cells with high precision; (6) Due to the closed space inside the glass tube, and it is vacuum or full of gas harmless to photovoltaic cells, materials and structure Both are economical and reliable, and at the same time low cost, effectively improving the service life of photovoltaic modules; (7) Overcoming traditional photovoltaics Pool the cell surface during production long after fixing adhesive layer module yellowing affect the efficiency of light-transmitting efficiency of recession; (8) a tubular shape by the influence of wind small, easy to implement on many occasions arrangement. DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of a first embodiment of a tubular concentrating photovoltaic module of the present invention.

Figure 2 is a side elevational view of a first embodiment of a tubular concentrating photovoltaic module of the present invention.

Fig. 3 is a schematic view showing the structure of a second embodiment of the tubular concentrating photovoltaic module of the present invention.

Figure 4 is a schematic view showing the structure of Embodiment 3 of the tubular concentrating photovoltaic module of the present invention.

Fig. 5 is a schematic view showing the state of the embodiment 3 of the tubular concentrating photovoltaic module of the present invention after being rotated by 30 degrees.

6 is a schematic view showing the connection manner of the photovoltaic array units in series of the tubular concentrating photovoltaic module of the present invention.

Figure 7 is a schematic view showing the structure of a fourth embodiment of the tubular concentrating photovoltaic module of the present invention.

Figure 8 is a schematic view showing the structure of a fifth embodiment of the tubular concentrating photovoltaic module of the present invention.

Figure 9 is a schematic view showing the structure of Embodiment 6 of the tubular concentrating photovoltaic module of the present invention. detailed description

Example 1

1 is a schematic structural view of a first embodiment of a tubular concentrating photovoltaic module of the present invention; as shown in FIG. 1, the tubular concentrating photovoltaic module includes a glass tube 101 and at least one corresponding arrangement disposed in the glass tube 101. The concentrating optical system and the photovoltaic cell array, in the embodiment, the glass tube 101 has only one set of correspondingly arranged collecting optical systems 103. The photovoltaic cell array of the first embodiment comprises a plurality of photovoltaic cell array units; the photovoltaic cell array unit comprises at least one photovoltaic cell 104 and a thermal diffusion structure 106 disposed on the back of the photovoltaic cell 104, the thermal diffusion structure 106 and the photovoltaic cell 104 The back is in thermal contact and is disposed close to the inner wall of the glass tube 101, and the heat of the photovoltaic cell array unit is diffused to the large-area glass tube wall, and heat is transferred to the outer environment of the glass tube 101 through the glass tube wall. The heat diffusion structure 106 is disposed in a partial region of the glass tube side wall and the bottom tube wall with respect to the incident light direction to maximize the incident width of the sunlight of the collecting optical system 103; the heat diffusion structure in the photovoltaic cell unit The front surface of the 106 is combined with the photovoltaic cell 104 by adhesive bonding or soldering, and the back surface is bonded to the inner wall surface of the glass tube 101 by an adhesive; the adhesive is preferably a light sensitive adhesive such as photocuring Agent, UV glue, etc., to facilitate assembly and good anti-aging in sunlight; the thermal diffusion structure 106 is made of aluminum, copper or iron or a combination of three or three; The diffusion structure 106 is in good thermal contact with the back of the photovoltaic cell 104, and the heat generated by the photovoltaic cell 104 is diffused to a larger area with a low thermal resistance (or low temperature difference) to enhance the heat dissipation effect, reduce the temperature of the photovoltaic cell 104, and avoid the photovoltaic cell. 104 excessive temperature rise due to light illumination results in a significant decrease in the efficiency of photovoltaic cell 104.

The photovoltaic cell 104 is a monocrystalline silicon cell, a polycrystalline silicon cell or a thin film photovoltaic cell, preferably a monocrystalline silicon cell; the photovoltaic cell array unit comprises a thermal diffusion structure 106 and a plurality of arrays arranged on the thermal diffusion structure 106 The photovoltaic cell 104; the photovoltaic cell 104 and the thermal diffusion structure 106 in the same photovoltaic cell array unit can be electrically insulated and/or electrically connected, respectively, in series, parallel or series-parallel; multiple photovoltaic cell array units can be connected in series or in parallel Or the series connection of the photovoltaic cells; the photovoltaic cell array is integrally disposed inside the glass tube, the surface of the photovoltaic cell 104 can directly receive the concentrated solar light, so the protective coating can be effectively reduced, and the manufacturing cost of the photovoltaic cell 104 can be effectively reduced; The battery array has a continuous or spaced arrangement of diodes at both ends of the tubular concentrating photovoltaic module outlet or internal portion of the battery due to the destruction of the partial photovoltaic cell 104 or the shadow of the external structure.

The concentrating optical system 103 may be a reflective concentrating optical system or a transmissive concentrating optical system; for example, a reflective concentrating optical system, preferably the reflective concentrating optical system 103 occurs when light passes through the glass tube wall. The optical correction design of the refraction enables the sunlight to finally converge on the surface of the optical cell array. It is necessary to specify that since the glass tube wall is a curved glass of equal thickness, the incident light passes through the curved glass. Refraction occurs, and the angle of refraction of the light differs at different positions in the direction of the light width (diameter direction), and the path of the refracted light deviates from the original direction. Since the values of the light refraction angles are different at different positions in the light-receiving width direction, the specific values of the respective points are determined, so that the condensed reflection surface type can be corrected so that the incident light at each reflection position can be collected at a high quality to the design. Focus on the surface of the photovoltaic cell 104 to avoid the angle of refraction of incident light at the tube wall The resulting concentrating effect is not good (focus is scattered). The reflective concentrating optical system 103 is integrally disposed inside the closed glass tube 101, and its reflecting surface is a front reflecting structure, has a highly reflective layer on the reflecting surface, and does not increase protection on the surface of the high reflective layer. The coating further reduces manufacturing costs. The glass tube 101 is a high-transmission glass tube; the material is high-transparent ultra-clear glass, and the inside of the glass tube 101 is a closed space, which effectively blocks the intrusion of gas, dust and water vapor harmful to the photovoltaic cell 104, and improves the efficiency of the photovoltaic cell 104. And the service life; further, the closed space inside the glass tube 104 is in a vacuum state, thereby maximizing the service life and the use efficiency of the photovoltaic cell; or the closed space is filled with a gas or a transparent liquid that is harmless to the photovoltaic cell to extend The service life of the photovoltaic cell 104 reduces costs.

The tubular concentrating photovoltaic module can be rotated integrally around a central axis of rotation parallel to the central axis of the glass tube 101 to achieve tracking of incident solar rays; the tubular concentrating photovoltaic module is axially arranged at a certain oblique angle to the north, south, and north, preferably The angle of inclination is a local latitude angle; in addition, the tubular concentrating photovoltaic module may also be disposed at a position of a sunny wall of the building or a roof of a sunny building.

Fig. 2 is a side elevational view of Fig. 1 of the present invention; the central axis of rotation shown in the figure is at a local latitude angle to the horizontal plane, for example, A, taking the northern hemisphere as an example, and the sunny side of the inclined surface is south.

Example 2

Fig. 3 is a schematic view showing the structure of a second embodiment of the tubular concentrating photovoltaic module of the present invention. As shown in FIG. 3, the tubular concentrating photovoltaic cell assembly includes a glass tube 301, at least one set of correspondingly disposed concentrating optical systems 303 disposed within the glass tube 301, and a photovoltaic cell array. Two sets of corresponding concentrating optical systems 303 and photovoltaic cell arrays are symmetrically arranged inside the glass tube 301; the photovoltaic cell array comprises a plurality of arrays of photovoltaic cell array units, wherein the photovoltaic cell array unit comprises at least one photovoltaic cell 304 and A thermal diffusion structure 306 disposed on the back of the photovoltaic cell. Embodiment 2 is different from the first embodiment in that a symmetrical collecting optical system 303 and a corresponding photovoltaic cell array are disposed inside the same glass tube 301; the thermal diffusion structures 306 are respectively disposed on the incident light. A portion of the wall that has little or no effect on the glass tube, such as the thermal diffusion structure 306, is disposed on the sidewall of the glass tube 301 that is incident perpendicular to the light or the bottom of the collecting optics 303, to minimize the conduction of heat to the wall of the glass tube. At the same time as the width, it is ensured that the shading of the collecting optics 306 is less affected. The tubular concentrating photovoltaic module can be arranged in a horizontal north-south axis arrangement, a horizontal east-west axis arrangement or a north-south axis inclined at a certain angle, preferably a north-south axial male arrangement, and the inclination angle is a local latitude angle.

Example 3

Figure 4 is a schematic view showing the structure of a third embodiment of the tubular concentrating photovoltaic module of the present invention. As shown in Figure 4, the real The embodiment is specifically a tubular concentrating photovoltaic module array comprising a plurality of tubular concentrating photovoltaic modules, for example, a tubular concentrating photovoltaic module having a group of six groups, that is, a tubular concentrating photovoltaic module 421 to a tubular concentrating photovoltaic module. 423; The plurality of tubular concentrating photovoltaic modules are arranged horizontally in east and west, horizontal north-south axis arrangement or north-south axis inclination angle, preferably the north-south axis inclination angle is local latitude angle, and is arranged in a sunny direction; the figure shows the local latitude inclined by the north-south axis For example, the angle concentrating photovoltaic assembly 421 to the tubular concentrating photovoltaic module 423 are arranged in parallel on the same rotating bracket, rotate around the same rotating central axis 407, perform solar ray tracing, and convert incident sunlight into The electrical energy is outputted; this embodiment 3 can also be arranged to rotate the respective tubular concentrating photovoltaic modules about their central axis of rotation, driven by the drive means.

5 is a schematic view showing a state in which the third embodiment of the tubular concentrating photovoltaic module of the present invention is rotated by 30 degrees. According to the schematic diagram of the solar ray path in FIG. 5, the tubular concentrating photovoltaic module 521 is tubular after the third embodiment is rotated by 30 degrees. The concentrating photovoltaic module 523 can still reflect the solar light to the surface of the photovoltaic cell. Therefore, the third embodiment of the tubular concentrating photovoltaic module of the present invention can implement real-time tracking of the sun, and always maintain a good concentrating effect and a high level. Solar utilization.

6 is a schematic view showing the connection manner of photovoltaic cell array units in series of the tubular concentrating photovoltaic module of the present invention. When the photovoltaic cell arrays are in a series combination configuration, each series group is arranged along the length of the glass tube. As shown in FIG. 6, each photovoltaic cell array unit is equally spaced and insulated to avoid extrusion deformation caused by excessive temperature of the photovoltaic cell. The photovoltaic cell array unit includes a photovoltaic cell 604 and a thermal diffusion structure 606. The upper portion of the photovoltaic cell 604 is a negative electrode and the lower portion is a positive electrode. For example, the photovoltaic cell 604 is not insulated from the thermal diffusion structure 606, that is, the thermal diffusion structure 606 is a positive electrode. The thermal diffusion structure 606 is connected to the upper portion of the photovoltaic cell 614 of the next photovoltaic array unit through the connection structure 608, and the cells in the photovoltaic cell array are arranged in this manner, so that the photovoltaic array cells are connected in series, and the electric energy is controlled by the photovoltaic cell. Output at both ends of the array.

Example 4

7 is a schematic view showing the structure of a fourth embodiment of the tubular concentrating photovoltaic module of the present invention. As shown in FIG. 7, a plurality of tubular concentrating photovoltaic cell modules are arranged in an array in the same vertical plane, and the tubular concentrating photovoltaic module 721 is arranged. The tubular concentrating photovoltaic module 723 can rotate independently about its own central axis of rotation or rotate about its own central axis of rotation by the same drive. It should be specially noted that the vertical surface can be the sunny wall of the building.

Example 5

8 is a schematic view showing the structure of a fifth embodiment of the tubular concentrating photovoltaic module of the present invention. As shown in FIG. 8, a tubular concentrating photovoltaic cell module 821 to a tubular concentrating photovoltaic cell module 823 are disposed on a building roof. Have a sun-facing roof, and the sunny roof is perpendicular to the north-south vertical plane; the tubular concentrating photovoltaic cell assembly 821 to the tubular concentrating photovoltaic cell assembly 823 are arranged along the sunny roof, and the tubular concentrating photovoltaic module 821 is arranged parallel to the north-south vertical plane The tubular concentrating photovoltaic cell assembly 821 to the tubular concentrating photovoltaic cell assembly 823 can rotate independently about its central axis of rotation or rotate about its own central axis of rotation by the same driving device. It should be particularly noted that the tubular concentrating photovoltaic cell assembly 831 to the tubular concentrating photovoltaic cell assembly 833 may also be arranged parallel to the east-west vertical plane.

Example 6

Figure 9 is a schematic view showing the structure of a sixth embodiment of the tubular concentrating photovoltaic module of the present invention. As shown in Fig. 9, the glass tube 901 is internally provided with a Fresnel transmissive collecting optical system 903 and a photovoltaic cell array disposed corresponding thereto. The Fresnel transmissive concentrating optical system 903 replaces the reflective concentrating optical system, and the Fresnel transmissive concentrating optical system 903 has two sets of corresponding photovoltaic cell arrays; the tubular concentrating photovoltaic component can The horizontal arrangement of the east-west axis, the horizontal arrangement of the north-south axis or the oblique angle arrangement of the north-south axis, preferably the north-south axis inclination, the inclination angle local latitude angle arrangement; it is necessary to specify that the tubular concentrating photovoltaic module may have multiple, multiple component arrays The arrangement can also be implemented in an embodiment that is combined with the building.

It will be apparent that the invention described herein can be varied in many ways without departing from the true spirit and scope of the invention. Therefore, all changes that are obvious to those skilled in the art are intended to be included within the scope of the claims. The scope of the invention is intended to be limited only by the scope of the appended claims.

Claims

Rights request

A tubular concentrating photovoltaic module, comprising a glass tube, a collecting optical system disposed in the glass tube, and a photovoltaic cell array, wherein the photovoltaic cell array comprises a plurality of arrays of photovoltaic cell array units, wherein the photovoltaic cells The array unit comprises at least one photovoltaic cell and a thermal diffusion structure, the thermal diffusion structure is in thermal contact with the back of the photovoltaic cell, and is arranged close to the inner wall of the glass tube to diffuse heat of the photovoltaic cell array unit to a larger area of the glass tube wall. Heat is transferred to the outside of the glass tube through the glass tube wall.

2. A tubular concentrating photovoltaic module according to claim 1 wherein the thermal diffusion structure is disposed in a region of the glass tube sidewall and the bottom tube wall relative to the direction of incident light.

3. A tubular concentrating photovoltaic module according to claim 2, wherein the heat diffusion structure is bonded to the inner wall of the glass tube with an adhesive.

4. A tubular concentrating photovoltaic module according to claim 3, wherein the adhesive is a photocurable adhesive.

The tubular concentrating photovoltaic module according to claim 3, wherein the thermal diffusion structure material is aluminum, copper or iron or a combination of two or three of them.

6. A tubular concentrating photovoltaic module according to claim 1, wherein the photovoltaic cell is a single crystal silicon cell, a polycrystalline silicon cell or a thin film photovoltaic cell.

7. A tubular concentrating photovoltaic module according to claim 6, wherein the photovoltaic cell surface has no organic protective coating.

8. A tubular concentrating photovoltaic module according to claim 1, wherein the concentrating optical system is a reflective concentrating optical system or a transmissive concentrating optical system.

9. A tubular concentrating photovoltaic module according to claim 8, wherein the concentrating optical system is optically modified in accordance with the refraction that occurs when light passes through the wall of the glass tube.

The tubular concentrating photovoltaic module according to claim 8 or 9, wherein the reflective surface of the reflective concentrating optical system is a front reflective structure having a highly reflective layer on the reflective surface. And there is no organic protective coating on the surface of the highly reflective layer.

11. A tubular concentrating photovoltaic module according to claim 1 wherein the interior of the glass tube is an enclosed space.

12. A tubular concentrating photovoltaic module according to claim 11, wherein the enclosed space is Vacuum or fill a gas or transparent liquid that is harmless to the photovoltaic cell.

13. A tubular concentrating photovoltaic module according to claim 1 wherein the tubular concentrating photovoltaic assembly rotates about a central axis of rotation.

14. A tubular concentrating photovoltaic module according to claim 13 wherein a plurality of said array of tubular concentrating photovoltaic modules are arranged in parallel and rotate about a common or respective central axis of rotation.

15. An array of tubular concentrating photovoltaic modules, characterized in that it is formed by a plurality of arrays of tubular concentrating photovoltaic modules according to claim 1 arranged in parallel, said plurality of tubular concentrating photovoltaic modules rotating around a common or respective The center axis rotates.