Photovoltaic module, integrated photovoltaic/photo-thermal module and manufacturing method thereof

Abstract

Disclosed are a photovoltaic module, an integrated photovoltaic/photo-thermal module and a manufacturing method thereof. The photovoltaic module includes: a front glass plate (1), a first back plate (4), an adhesive layer (3) located between the front glass plate and the first back plate, and cell sheets (5) located in the adhesive layer. At least a hollow layer (2) is included between the front glass plate and the adhesive layer. Since the photovoltaic module and the integrated photovoltaic/photo-thermal module include the hollow layer, making the integrated photovoltaic/photo-thermal module itself has a partial heat insulation function without the need to add a front glass blocking plate or a hollow heat insulation layer directly in front of the light-receiving surface of the module, thereby simplifying the structure and manufacturing process of the integrated photovoltaic/photo-thermal module.

1 . A photovoltaic module, comprising: a front glass plate, a first back plate, an adhesive layer provided between the front glass plate and the first back plate, and a cell sheet provided in the adhesive layer, wherein at least a hollow layer is provided between the front glass plate and the adhesive layer. 
     
     
         2 . The photovoltaic module as claimed in  claim 1 , wherein the hollow layer is vacuum or filled with nitrogen. 
     
     
         3 . The photovoltaic module as claimed in  claim 1 , wherein a second glass is further provided between the front glass plate and the adhesive layer, the second glass contacts with the adhesive layer, and two sides of the hollow layer are the front glass plate and the second glass respectively. 
     
     
         4 . The photovoltaic module as claimed in  claim 3 , wherein a vacuum glass assembly is formed by the front glass plate and the second glass. 
     
     
         5 . The photovoltaic module as claimed in  claim 1  or  2 , further comprising a support structure, wherein the front glass plate is supported on the support structure, such that the front glass plate is separated from the adhesive layer in a determined distance so as to form the hollow layer. 
     
     
         6 . The photovoltaic module as claimed in  claim 5 , wherein
 the support structure is supported on the first back plate, or   the photovoltaic module further comprises a second back plate provided at a bottom side of the first back plate, and the support structure is supported on the second back plate.   
     
     
         7 . An integrated photovoltaic/photo-thermal module, comprising:
 a photovoltaic module comprising: a front glass plate, a first back plate, an adhesive layer provided between the front glass plate and the first back plate, and a cell sheet provided in the adhesive layer, wherein at least a hollow layer is provided between the front glass plate and the adhesive layer; and   a thermal collecting assembly, wherein the photovoltaic module is covered by the thermal collecting assembly at a bottom part and a side part.   
     
     
         8 . The integrated photovoltaic/photo-thermal module as claimed in  claim 7 , wherein the thermal collecting assembly comprises: a thermal collecting plate provided at a bottom side of the photovoltaic module, a heat exchanger contacting with the thermal collecting plate, and a thermal insulation material for realizing a covering function at a bottom part and a side part; or
 in the case of the presence of a second back plate, the second back plate is used as a thermal collecting plate, and the thermal collecting plate comprises: a heat exchanger contacting with the second back plate, and a thermal insulation material for realizing a covering function at a bottom part and a side part.   
     
     
         9 . The integrated photovoltaic/photo-thermal module as claimed in  claim 8 , further comprising:
 a frame, wherein the frame is used for covering an outer side of the thermal insulation material.   
     
     
         10 . The integrated photovoltaic/photo-thermal module as claimed in  claim 8 , wherein
 the heat exchanger is fixed below the thermal collecting plate, and/or   the heat exchanger is a thermal conducting copper pipe.   
     
     
         11 . A manufacturing method for the photovoltaic module, comprising:
 installing a first back plate;   installing an adhesive layer and a cell sheet on the first back plate, and making the cell sheet to be provided in the adhesive layer; and   installing a front glass plate above the adhesive layer, such that a hollow layer is at least provided between the front glass plate and the adhesive layer.   
     
     
         12 . The manufacturing method as claimed in  claim 11 , wherein the step of installing a front glass plate above the adhesive layer comprising:
 laying a vacuum glass assembly on the adhesive layer, such that the front glass plate is formed by an outer layer glass of the vacuum glass assembly; or   installing a support structure, and placing the front glass plate on the support structure, such that the front glass plate is separated from the adhesive layer in a determined distance so as to form the hollow layer.   
     
     
         13 . The manufacturing method as claimed in  claim 12 , wherein in a scheme in which a support structure is installed, the step of installing a support structure comprising:
 making the support structure to be supported on the first back plate; or   making the support structure to be supported on a second back plate, wherein the second back plate is installed before the step of installing a first back plate, and the first back plate is provided on the second back plate; or   before installing a first back plate, firstly installing a second back plate with a support structure, and installing the first back plate on the second back plate.   
     
     
         14 . A manufacturing method for the integrated photovoltaic/photo-thermal module, comprising:
 providing a photovoltaic module comprising: a front glass plate, a first back plate, an adhesive layer provided between the front glass plate and the first back plate, and a cell sheet provided in the adhesive layer, wherein at least a hollow layer is provided between the front glass plate and the adhesive layer; and   forming a thermal collecting assembly at a bottom part and a side part of the photovoltaic module.   
     
     
         15 . The method as claimed in  claim 14 , wherein the step of forming a thermal collecting assembly comprising:
 installing a thermal collecting plate at the bottom part of the photovoltaic module, or in the case of the presence of a second back plate, using the second back plate as a thermal collecting plate;   installing a heat exchanger at a lower side of the thermal collecting plate; and   covering a lower side of the heat exchanger and a side part of the photovoltaic module by a thermal insulation material.   
     
     
         16 . The method as claimed in  claim 14 , further comprising: covering an outer side of the thermal collecting assembly by a frame. 
     
     
         17 . A manufacturing method for the integrated photovoltaic/photo-thermal module, comprising:
 providing a second back plate with a support structure, successively laying a first back plate, an adhesive layer and a cell sheet on the second back plate and laminating;   placing a front glass plate on the support structure, such that the front glass plate is separated from the adhesive layer in a determined distance so as to form a hollow layer, to obtain the photovoltaic module with the hollow layer;   installing a heat exchanger at a lower side of the second back plate; and   covering a lower side of the heat exchanger and a side part of the photovoltaic module by a thermal insulation material.   
     
     
         18 . The photovoltaic module as claimed in  claim 2 , wherein a second glass is further provided between the front glass plate and the adhesive layer, the second glass contacts with the adhesive layer, and two sides of the hollow layer are the front glass plate and the second glass respectively. 
     
     
         19 . The photovoltaic module as claimed in  claim 2 , further comprising a support structure, wherein the front glass plate is supported on the support structure, such that the front glass plate is separated from the adhesive layer in a determined distance so as to form the hollow layer.