CN-122026799-A - Multi-split photovoltaic panel

CN122026799ACN 122026799 ACN122026799 ACN 122026799ACN-122026799-A

Abstract

The application relates to a multi-split photovoltaic panel which comprises a rectangular mounting frame, a photovoltaic panel, a radiating substrate assembly, a radiating module and a liquid collecting and distributing device. The heat dissipation substrate assembly comprises a heat substrate frame and a plurality of independent heat substrate bodies embedded in the heat substrate frame, wherein independent heat dissipation coils are embedded in the heat substrate bodies and are in heat transfer connection with serpentine grooves of the heat substrate bodies through special-shaped heat conducting blocks, the heat dissipation modules are arranged on the side walls of the frame, and a liquid collecting pump, a radiator and a liquid distributing pump are coaxially integrated in the heat dissipation modules along the axial direction to form a serial push-pull driving structure. The liquid collector and the liquid distributor are respectively connected with the radiating coils to form a multi-path parallel closed heat management loop. According to the application, the physical isolation of local hot spots is realized through the partition independent heat exchange framework, the heat transfer resistance is reduced by utilizing the surface contact type heat conduction interface, and the system circulating power and the space structure layout are optimized by combining the side-hung integrated module.

Inventors

XIA JINCAI
ZHU HONGJIE
JIANG XUDONG
ZHAO WEI
WU ZHONGCHAO

Assignees

宁波东旭太阳能电力有限公司

Dates

Publication Date: 20260512
Application Date: 20260129

Claims (10)

1. The utility model provides a many divides photovoltaic board, includes the rectangle installing frame and set up in the photovoltaic board of rectangle installing frame upper surface, its characterized in that still includes: The heat dissipation substrate assembly is fixedly connected to the lower surface of the rectangular mounting frame; the heat dissipation module is arranged on the outer surface of the side wall of the rectangular mounting frame; the liquid collector and the liquid distributor are respectively in fluid communication with two ends of the heat dissipation module; The heat dissipation substrate assembly comprises a heat substrate frame and a plurality of independent heat substrate bodies embedded in the heat substrate frame, and independent heat dissipation coils are embedded in each heat substrate body; The cooling working medium circulation flow channel is defined in the heat dissipation module, the liquid collector is configured to collect working medium from the plurality of heat dissipation coils and guide the working medium into the heat dissipation module, and the liquid distributor is configured to split the working medium cooled by the heat dissipation module to the plurality of heat dissipation coils, so that a closed heat management loop is formed.
2. The multi-split photovoltaic panel according to claim, wherein the heat dissipation module comprises a hollow cylindrical mounting cylinder, a liquid collecting pump, a radiator and a liquid distributing pump are coaxially arranged in the mounting cylinder in sequence from top to bottom along the axial direction of the mounting cylinder, a liquid inlet end of the liquid collecting pump is in fluid communication with the liquid collector, a liquid outlet end of the liquid collecting pump is in sealing connection with an inlet end of the radiator, an outlet end of the radiator is in sealing connection with a liquid inlet end of the liquid distributing pump, a liquid outlet end of the liquid distributing pump is in fluid communication with the liquid distributing pump, and the liquid collecting pump and the liquid distributing pump form a serial pump structure for push-pull driving of the cooling working medium.
3. The multi-component photovoltaic panel according to claim, wherein the thermal substrate frame is defined with a plurality of rectangular mounting stations penetrating through the thickness direction of the thermal substrate frame, the number of the rectangular mounting stations is equal to that of the thermal substrate bodies, each thermal substrate body is embedded in the corresponding rectangular mounting station in a shape fit mode, and two adjacent thermal substrate bodies form a physical interval through the frame framework of the thermal substrate frame.
4. The multi-component photovoltaic panel according to claim, wherein the number of the thermal substrate bodies is four, the four thermal substrate bodies are arranged in a matrix in the thermal substrate frame, four independent liquid inlet ports are arranged on the liquid collector, and four independent liquid outlet ports are arranged on the liquid separator.
5. The multi-component photovoltaic panel according to claim, wherein the upper surface of the thermal substrate body is concavely provided with a continuously extending serpentine groove, the heat dissipation coil is accommodated in the serpentine groove, a special-shaped heat conduction block is filled between the outer wall of the heat dissipation coil and the groove wall of the serpentine groove, and the special-shaped heat conduction block is provided with a contact surface closely attached to the outer contour of the heat dissipation coil and the inner contour of the serpentine groove so as to form heat conduction connection between the heat dissipation coil and the thermal substrate body.
6. The multi-component photovoltaic panel according to claim, wherein the four liquid inlet ports of the liquid collector are respectively connected with the liquid outlet ends of the four heat dissipation coils in a one-to-one correspondence manner through four independent backflow branch pipes, the four liquid outlet ports of the liquid distributor are respectively connected with the liquid inlet ends of the four heat dissipation coils in a one-to-one correspondence manner through four independent current supply branch pipes, and the backflow branch pipes and the current supply branch pipes extend along the direction perpendicular to the plane of the rectangular mounting frame and are not communicated with each other, so that four parallel independent heat exchange branches are defined between the liquid collector and the liquid distributor.
7. The multi-component photovoltaic panel of claim, wherein the liquid inlet and liquid outlet nozzles of the heat dissipating coil are each configured as an L-bend structure, and the liquid inlet and liquid outlet nozzles extend vertically through the thermal substrate body and in a direction away from the photovoltaic panel.
8. The multi-component photovoltaic panel according to claim, wherein the liquid collector and the liquid separator are of a flat box structure, the liquid collector is fixedly connected to the first end of the mounting cylinder, and the liquid separator is fixedly connected to the second end of the mounting cylinder, so that the liquid collector, the heat dissipation module and the liquid separator together form an integrated side thermal management unit.
9. The multi-split photovoltaic panel according to claim, wherein the radiator is a cylindrical microchannel heat exchanger, the outer diameter of the cylindrical microchannel heat exchanger is in interference fit or fastening connection with the inner diameter of the mounting cylinder, and the mounting cylinder is provided with a heat radiation grille or a vent corresponding to the position of the radiator.
10. The multi-component photovoltaic panel of claim, wherein the thermal substrate body is made of an aluminum alloy or copper alloy material, and wherein an upper surface of the thermal substrate body is flush with an upper surface of the thermal substrate frame and is configured to be in thermally conductive contact with a backsheet of the photovoltaic panel via a thermally conductive silicone grease or a thermally conductive gasket.

Description

Multi-split photovoltaic panel Technical Field The application relates to the technical photovoltaic field, in particular to a multi-split photovoltaic panel. Background In the prior art, the photovoltaic power generation technology is widely applied to the field of renewable energy sources, but the photoelectric conversion efficiency of a photovoltaic module is extremely sensitive to temperature, and the output power of a battery piece can be obviously reduced along with the increase of the working temperature. In addition, in actual operation, local hot spot effect is extremely easy to be caused due to leaf shielding, bird droppings stains or performance difference of the battery piece, so that the power generation efficiency is greatly reduced, and even components are burnt when serious. Disclosure of Invention In order to solve the problems, the application provides a multi-split photovoltaic panel with effectively optimized space layout. In order to achieve the above object, the multi-split photovoltaic panel according to the present application comprises a rectangular mounting frame, a photovoltaic panel disposed on an upper surface of the rectangular mounting frame, and further comprises: The heat dissipation substrate assembly is fixedly connected to the lower surface of the rectangular mounting frame; the heat dissipation module is arranged on the outer surface of the side wall of the rectangular mounting frame; the liquid collector and the liquid distributor are respectively in fluid communication with two ends of the heat dissipation module; The heat dissipation substrate assembly comprises a heat substrate frame and a plurality of independent heat substrate bodies embedded in the heat substrate frame, and independent heat dissipation coils are embedded in each heat substrate body; The cooling working medium circulation flow channel is defined in the heat dissipation module, the liquid collector is configured to collect working medium from the plurality of heat dissipation coils and guide the working medium into the heat dissipation module, and the liquid distributor is configured to split the working medium cooled by the heat dissipation module to the plurality of heat dissipation coils, so that a closed heat management loop is formed. The heat dissipation module comprises a hollow columnar installation cylinder, wherein a liquid collecting pump, a radiator and a liquid distributing pump are coaxially arranged in the installation cylinder from top to bottom in sequence along the axial direction of the installation cylinder, the liquid inlet end of the liquid collecting pump is in fluid communication with the liquid collector, the liquid outlet end of the liquid collecting pump is in sealing connection with the inlet end of the radiator, the outlet end of the radiator is in sealing connection with the liquid inlet end of the liquid distributing pump, the liquid outlet end of the liquid distributing pump is in fluid communication with the liquid distributor, and the liquid collecting pump and the liquid distributing pump form a serial pump structure for push-pull driving of the cooling working medium. Preferably, the thermal substrate frame is defined with a plurality of rectangular mounting stations penetrating through the thickness direction of the thermal substrate frame, the number of the rectangular mounting stations is equal to that of the thermal substrate bodies, each thermal substrate body is embedded in the corresponding rectangular mounting station in a shape fit mode, and two adjacent thermal substrate bodies form a physical interval through a frame framework of the thermal substrate frame. Preferably, the number of the thermal substrate bodies is four, the four thermal substrate bodies are arranged in a matrix in the thermal substrate frame, four independent liquid inlet ports are arranged on the liquid collector, and four independent liquid outlet ports are arranged on the liquid separator. The heat-dissipating coil is arranged in the heat-dissipating coil body, and is characterized in that a continuously extending snake-shaped groove is concavely arranged on the upper surface of the heat-dissipating substrate body, the heat-dissipating coil is accommodated in the snake-shaped groove, a special-shaped heat-conducting block is filled between the outer wall of the heat-dissipating coil and the groove wall of the snake-shaped groove, and the special-shaped heat-conducting block is provided with a contact surface closely attached to the outer contour of the heat-dissipating coil and the inner contour of the snake-shaped groove so as to form heat-conducting connection between the heat-dissipating coil and the heat-dissipating substrate body. The four liquid inlet ports of the liquid collector are respectively connected with the liquid outlet ends of the four heat dissipation coils in a one-to-one correspondence manner through four independent backflow branch pipes, the four liquid outlet