CN113765472A

CN113765472A - Hollow BIPV assembly with good drainage performance

Info

Publication number: CN113765472A
Application number: CN202111056808.8A
Authority: CN
Inventors: 黄高洪; 刘永保; 翁兴锋; 商勇杰
Original assignee: Jiangxi Taibo Green Energy Technology Co ltd
Current assignee: Jiangxi Taibo Green Energy Technology Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2021-12-07
Anticipated expiration: 2041-09-13
Also published as: CN113765472B

Abstract

The invention discloses a hollow BIPV assembly with good drainage performance, which comprises a substrate and PV pieces and is characterized in that the PV pieces are distributed on the substrate in an array manner at equal intervals, drainage grooves are formed in two sides and the bottom end of the substrate, impellers are arranged on the left side and the right side of the drainage groove at the bottom end of the substrate, the impellers on the two sides are connected through a rotating shaft, each PV piece comprises transparent glass, an elastic cylinder is fixedly connected below the transparent glass, a solar cell piece is tightly attached to the lower side of the transparent glass, the middle of the elastic cylinder is fixed with the substrate, the lower end of each adjacent row of elastic cylinders on each PV piece is connected through a first connecting plate, the elastic cylinder at the top end of the substrate is connected with the top end of the substrate through a second connecting plate, and the elastic cylinder at the bottom end of the substrate is connected with the rotating shaft through a drawstring. The BIPV component provided by the invention has excellent drainage performance and high stability.

Description

Hollow BIPV assembly with good drainage performance

Technical Field

The invention relates to the technical field of photovoltaic buildings, in particular to a hollow BIPV assembly with good drainage performance.

Background

Building Integrated Photovoltaic (PV) is a technology for integrating solar power (Photovoltaic) products into buildings. Building-integrated photovoltaics (BIPV) is different from the form in which photovoltaic systems are Attached to Buildings (BAPV). Building integrated photovoltaics can be divided into two main categories: one is the combination of photovoltaic arrays and buildings. The other is the integration of photovoltaic arrays with buildings. Such as a photovoltaic tile roof, a photovoltaic curtain wall, a photovoltaic daylighting roof and the like. In both of these ways, the integration of photovoltaic arrays with buildings is a common form, particularly with building roofing.

The existing BIPV component setting mode is mainly two placing modes of an inclined roof and a flat roof, and for the setting mode of the inclined roof, rainwater falls down along the inclination angle of the component without concentrated discharge, so that roof leakage rainwater is easily caused, and the placing mode of the flat roof is more difficult to discharge the rainwater.

Chinese invention patent CN201210460021.2 discloses a breathing type hollow BIPV photovoltaic module, which comprises front glass, a solar cell group, substrate glass, a hollow layer and back glass which are sequentially overlapped, wherein a spacing strip is arranged between the substrate glass and the back glass to form the hollow layer, the substrate glass and the back glass outside the spacing strip are hermetically sealed by sealant, a junction box is also arranged between the front glass and the back glass, and the junction box is electrically connected with a connecting terminal of the solar cell group.

Therefore, the problems of poor drainage performance and low stability of the BIPV assembly need to be solved.

Disclosure of Invention

The invention provides a hollow BIPV assembly with good drainage performance, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the following technical scheme:

a hollow BIPV assembly with good drainage performance comprises a substrate and PV pieces and is characterized in that the PV pieces are distributed on the substrate in an array mode at equal intervals, drainage grooves are formed in the two sides and the bottom end of the substrate, impellers are arranged on the left side and the right side of the drainage groove in the bottom end of the substrate, and the impellers on the two sides are connected through a rotating shaft;

the PV piece comprises transparent glass, an elastic cylinder is fixedly connected below the transparent glass, a solar cell is tightly attached below the transparent glass, and the middle of the elastic cylinder is fixed with the substrate;

the lower ends of every two adjacent rows of elastic cylinders on the PV part are connected through a first connecting plate, the elastic cylinder at the top end of the base plate is connected with the top end of the base plate through a second connecting plate, and the elastic cylinder at the bottom end of the base plate is connected with the rotating shaft through a pull belt;

when the impeller is stressed to rotate, the rotating shaft is driven to rotate, the draw belt is wound around the rotating shaft, the elastic cylinder connected with the draw belt is made to elongate and deform, and then other adjacent elastic cylinders are pulled to elongate and deform.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the sealed cavity is filled with the thermal expansion gas, and when the temperature in the sealed cavity is higher, the thermal expansion gas drives the elastic cylinder to expand, so that the volume of the sealed cavity is increased, the temperature is further reduced, and the solar cell is protected;

2. the impeller rotates under stress, the rotating shaft is further driven to rotate, the pull belt is wound around the rotating shaft, the elastic cylinder connected with the pull belt is stretched and deformed, and then other adjacent elastic cylinders are pulled to stretch and deform;

3. according to the invention, the sealed cavity expands or contracts along with the temperature change, and the residual moisture can continuously creep under the condition that the elastic tube expands and contracts along with the temperature change, so that on one hand, the residual moisture is utilized for cooling, and on the other hand, the residual moisture is discharged by utilizing the contraction and creep of the elastic tube.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic view of the installation of a BIPV module according to the present invention;

FIG. 2 is a schematic diagram of a BIPV module according to the present invention;

FIG. 3 is a schematic view of a mounting structure of a PV member of a BIPV module according to the present invention;

FIG. 4 is a schematic diagram of a longitudinal cross-section of a PV member of a BIPV module according to the present invention;

fig. 5 is a schematic diagram of an elastic tube stretching structure of the BIPV module according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a substrate; 11. a water discharge tank; 2. a PV member; 21. transparent glass; 22. an elastic cylinder; 23. a solar cell sheet; 24. sealing the cavity; 25. connecting blocks; 3. an impeller; 4. a rotating shaft; 5. a first connecting plate; 6. a second connecting plate; 7. pulling the belt; 8. a water outlet; 9. and a water discharge pipe.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will be more apparent. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-3, the hollow BIPV assembly with good drainage performance comprises a substrate 1 and PV elements 2, wherein the PV elements 2 are distributed on the substrate 1 in an array manner at equal intervals, drainage grooves 11 are formed in two sides and the bottom end of the substrate 1, impellers 3 are arranged on the left side and the right side of the drainage groove 11 in the bottom end of the substrate 1, the impellers 3 on the two sides are connected through a rotating shaft 4, drainage ports 8 are formed in two sides of the drainage groove 11 in the bottom end of the substrate, and a drainage pipe 9 is connected below the drainage ports 8.

Referring to fig. 4, the PV device 2 includes a transparent glass 21, an elastic tube 22 is fixedly connected below the transparent glass 21, and a solar cell 23 is tightly attached below the transparent glass 21, the elastic tube 22 is made of a TPE material and has a thickness of 0.8-1.2mm, because the TPE has high elasticity, high strength, high resilience, high weather resistance and fatigue resistance, and can provide sufficient support strength for the elastic glass 21 and the solar cell 23, and is easy to shrink and deform, the middle of the elastic tube 22 is fixed to the substrate 1, the transparent glass 21 is made of low-iron super-mortar tempered glass, and has high stability and light transmittance, so as to facilitate light energy conversion of the solar cell 23, a sealed cavity 24 is formed between the transparent glass 21 and the elastic tube 22, and the sealed cavity 24 is filled with a thermal expansion gas, the thermal expansion gas is preferably ammonia gas, and because the thermal expansion coefficient of ammonia gas is high, when the temperature in the sealed cavity 24 is high, the thermal expansion gas drives the elastic cylinder 22 to expand, so that the volume of the sealed cavity 24 is increased, the temperature is further reduced, and the solar cell 23 is protected.

The middle of the bottom end of the elastic tube 22 is fixed with a connecting block 25, the elastic tube 22 is connected with the substrate 1 through the connecting block 25, so that the elastic tube 22 has enough deformation space, the electric wire of the solar cell 23 penetrates through the connecting block 25 and the substrate 1 to be connected with a storage battery, and the position of the electric wire of the solar cell 23 penetrating through the connecting block 25 is filled with sealant.

Referring to fig. 5, the lower ends of each row of adjacent elastic tubes 22 on the PV element 2 are connected by a first connecting plate 5, the elastic tube 22 at the top end of the base plate 1 is connected with the top end of the base plate 1 by a second connecting plate 6, the elastic tube 22 at the bottom end of the base plate 1 is connected with the rotating shaft 4 by a pull belt 7, when the impeller 3 is forced to rotate, the rotating shaft 4 is driven to rotate, the pull belt 7 is wound around the rotating shaft 4, the elastic tube 22 connected with the pull belt 7 is stretched and deformed, and then the other adjacent elastic tubes 22 are pulled to be stretched and deformed, when the impeller 3 is forced to rotate below the deformation pulling force threshold of all the elastic tubes 22, which is the threshold that the elastic tubes 22 are deformed to a certain extent, the maximum twisting force of the pull belt 7 on the rotating shaft is generated by the pull belt 7 wound around the rotating shaft 4 after all the elastic tubes 22 are subjected to memory recovery, and the rotating shaft 4 rotates back and forth, and all the elastic tubes 22 are subjected to transverse stretching and deformation, so that the space between the laterally adjacent elastic tubes 22 is changed in size to allow rainwater on the peristaltic base plate 1 to rapidly enter the drain groove 11 and rapidly enter the drain pipe 9 through the drain port 8. The rainwater is bigger, and the rotation amplitude of impeller 3 is bigger, and the degree that makes stretching strap 7 pulling elastic tube 22 warp is bigger, and then to the wriggling degree of rainwater bigger, drainage rate is faster, and the rainwater is gone out after stopping, and remaining moisture can continue to wriggle under the condition of elastic tube 22 along with temperature variation shrink, utilizes remaining moisture to cool down on the one hand, and on the other hand utilizes the shrink wriggling of elastic tube 22 to discharge remaining moisture.

When the hollow BIPV component is used specifically, the hollow BIPV component is fixed on a roof, when no rain exists, the thermal expansion gas in the sealed cavity 24 drives the elastic cylinder 22 to contract to a certain degree along with the change of the outside air temperature, and when the temperature in the sealed cavity 24 is higher, the thermal expansion gas drives the elastic cylinder 22 to expand, so that the volume of the sealed cavity 24 is increased, the temperature is further reduced, and the solar cell 23 is protected;

under rainy weather, the rainwater is beaten on both sides impeller 3, make impeller 3 atress rotate, and then drive pivot 4 and rotate, make stretching strap 7 twine around pivot 4, make the elastic tube 22 that is connected with stretching strap 7 lengthen and warp, and then stimulate other adjacent elastic tube 22 to lengthen and warp, when impeller 3's atress is less than the deformation pulling force threshold value of all elastic tubes 22, all elastic tubes 22 carry out the memory and resume to pull back stretching strap 7 of winding at pivot 4, and make pivot 4 gyration, so reciprocal, pivot 4 reciprocating rotation, all elastic tubes 22 carry out horizontal flexible deformation, the rainwater is big more, impeller 3's rotation amplitude is big more, reciprocal pivoted frequency is high more, and then 7 stimulates the degree that elastic tube 22 warp big more, the frequency is high more, and then the peristaltic degree to the rainwater is big more, the drainage rate is faster.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any equivalent changes, modifications, evolutions, etc. made to the above embodiments according to the essential technology of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A hollow BIPV assembly with good drainage performance comprises a substrate (1) and PV pieces (2), and is characterized in that the PV pieces (2) are distributed on the substrate (1) in an array manner at equal intervals, drainage grooves (11) are formed in the two sides and the bottom end of the substrate (1), impellers (3) are arranged on the left side and the right side of the drainage groove (11) in the bottom end of the substrate (1), and the impellers (3) on the two sides are connected through a rotating shaft (4);

the PV piece (2) comprises transparent glass (21), an elastic cylinder (22) is fixedly connected below the transparent glass (21), a solar cell (23) is tightly attached below the transparent glass (21), and the middle of the elastic cylinder (22) is fixed with the substrate (1);

the lower ends of every row of adjacent elastic cylinders (22) on the PV piece (2) are connected through a first connecting plate (5), the elastic cylinder (22) at the upper top end of the base plate (1) is connected with the top end of the base plate (1) through a second connecting plate (6), and the elastic cylinder (22) at the upper bottom end of the base plate (1) is connected with the rotating shaft (4) through a drawstring (7);

when impeller (3) atress rotates, drives pivot (4) rotate, makes drawstring (7) twine round pivot (4), make with elastic tube (22) that drawstring (7) are connected elongates and warp, and then stimulates other adjacent elastic tube (22) elongation deformation, works as when impeller (3)'s atress is less than the deformation pulling force threshold value of all elastic tube (22), all elastic tube (22) remember to resume to pull back drawstring (7) of winding in pivot (4), and make pivot (4) gyration, so reciprocal, pivot (4) reciprocal rotation, all elastic tube (22) carry out horizontal flexible deformation.

2. The hollow BIPV module with good drainage performance as claimed in claim 1, wherein a sealed cavity (24) is formed between the transparent glass (21) and the elastic cylinder (22), and the sealed cavity (24) is filled with thermal expansion gas.

3. The hollow BIPV module with good drainage performance as claimed in claim 1, wherein a connecting block (25) is fixed at the middle of the bottom end of the elastic cylinder (22), and the elastic cylinder (22) is connected with the substrate (1) through the connecting block (25).

4. The hollow BIPV module with good drainage performance according to claim 1, wherein drainage ports (8) are arranged on two sides of the drainage groove (11) at the bottom end of the substrate, and a drainage pipe (9) is connected below the drainage ports (8).

5. The hollow BIPV module with good drainage performance as claimed in claim 1, wherein the wires of the solar cells (23) are connected with the storage battery through the connection block (25) and the substrate (1), and the sealant is filled at the position where the wires of the solar cells (23) pass through the connection block (25).

6. The hollow BIPV assembly with good drainage performance as claimed in claim 3, wherein the transparent glass (21) is low-iron ultra-mortar tempered glass.

7. The hollow BIPV module with good drainage performance as claimed in claim 1, wherein the elastic tube (22) is made of TPE material and has a thickness of 0.8-1.2 mm.